In probability plotting, a graph of the cumulative distribution function (CDF) is plotted against a transformed version of the data to determine if the data come from a particular distribution.
The distance between the two lines is equal to the product of the critical value of the t-distribution and the standard error estimate.
This can be used to analyze the times to failure (i.e., loss of acceptable sharpness) for a random selection of ten drill bits from a process that follows a Weibull distribution.
To estimate the shape and scale parameters
follow these steps:
Step 1: Rank the data from smallest to largest
Step 2: Calculate the failure probability of each data point using the formula: i/(n+1), where i is the rank of the data point and n is the number of data points.
Step 3: Transform the failure probabilities using the inverse Weibull distribution function: F^(-1)(p) = (−ln(1−p))^β for a given shape parameter β and scale parameter η.
Step 4: Plot the transformed data against the theoretical distribution, which is a straight line for the Weibull distribution.
Step 5: Find the best-fitting line by eye, or by using regression analysis.
The slope of the line is equal to the shape parameter β, and the intercept is equal to the logarithm of the scale parameter ln(η).
The Weibull distribution can be represented as:[tex]F(x) = 1 − e^(-(x/η)^β)[/tex], where β is the shape parameter and η is the scale parameter. The CDF model corresponding to your parameter estimates can be plotted by using the formula . This can be done by calculating the standard deviation of the residuals, and then calculating the upper and lower limits of the confidence interval using the t-distribution.
The confidence interval can be calculated as:β ± t(n−2,α/2) x SE(β)ln(η) ± t(n−2,α/2) x SE(ln(η))where SE(β) is the standard error estimate for the shape parameter, SE(ln(η)) is the standard error estimate for the logarithm of the scale parameter, and t(n−2,α/2) is the critical value of the t-distribution with n−2 degrees of freedom and a significance level of α/2.The confidence limits can be plotted as two parallel lines around the best-fitting line. The distance between the two lines is equal to the product of the critical value of the t-distribution and the standard error estimate.
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Zoey needed to get her computer fixed. She took it to the repair store. The
technician at the store worked on the computer for 3. 25 hours and charged
her $59 for parts. The total was $205. 25. Write and solve an equation which
can be used to determine x, the cost of the labor per hour.
3.25x + 59 = 205.25 is an equation which can be used to determine x, the cost of the labor per hour.
Let's assume that the cost of labor per hour is x dollars.
The technician worked on the computer for 3.25 hours, so the cost of labor is 3.25x dollars.
In addition, Zoey was charged $59 for parts.
The total cost, including labor and parts, was $205.25.
Therefore, we can write the equation:
3.25x + 59 = 205.25
To solve for x, we need to isolate x on one side of the equation.
We can do this by subtracting 59 from both sides:
3.25x = 146.25
Finally, we can solve for x by dividing both sides by 3.25:
x = 45
Therefore, the cost of labor per hour is $45.
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Construct the first three Fourier approximations to the square wave function f(x) = {1 - pi lessthanorequalto x < 0 -1 0 lessthanorequalto x < pi F_1(x) = -(4/pi)*(sin(x)) F_2(x) = (4/pi)*(sin(x)) F_3(x) = (4/pi)*((sin(x))-(1/3)*(sin(3x)))
The Fourier series for f(x) is f(x) = (4/π) [sin(x) + (1/3) sin(3x) + (1/5) sin(5x) + ...].
The square wave function can be defined as:
f(x) = {1 -π ≤ x < 0
-1 0 ≤ x < π
To find the Fourier series for this function, we first need to determine the coefficients a_n and b_n.
a_n = (1/π) ∫_0^π f(x) cos(nx) dx
= (1/π) ∫_0^π (-1) cos(nx) dx + (1/π) ∫_(-π)^0 cos(nx) dx
= (2/π) ∫_0^π cos(nx) dx
= (2/π) [sin(nπ) - sin(0)]
= 0
b_n = (1/π) ∫_0^π f(x) sin(nx) dx
= (1/π) ∫_0^π (-1) sin(nx) dx + (1/π) ∫_(-π)^0 sin(nx) dx
= -(2/π) ∫_0^π sin(nx) dx
= -(2/π) [cos(nπ) - cos(0)]
= (2/π) [1 - (-1)^n]
Therefore, the Fourier series for f(x) is:
f(x) = (4/π) [sin(x) + (1/3) sin(3x) + (1/5) sin(5x) + ...]
To find the first three Fourier approximations, we truncate this series at the third term.
F_1(x) = -(4/π) sin(x)
F_2(x) = (4/π) sin(x) + (4/3π) sin(3x)
F_3(x) = (4/π) sin(x) + (4/3π) sin(3x) - (4/5π) sin(5x)
These are the first three Fourier approximations of the square wave function f(x). The more terms we include in the Fourier series, the closer the approximations will be to the original function.
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how do i graph y=9-x
Answer:
We can rewrite the equation in slope-intercept form, y = mx + b, where m is the slope and b is the y-intercept. To do this, we can rearrange the terms as follows:y = 9 - xy = -1x + 9
This gives us a slope of -1 and a y-intercept of 9. We can plot the y-intercept at (0, 9) and use the slope to find another point on the line. The slope tells us that for every increase of 1 in x, the value of y decreases by 1. So, starting from (0, 9), we can move one unit to the right and one unit down to get another point (1, 8). We can continue this process to find more points or connect the two points we already have to draw a line.
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The resulting graph should be a straight line that starts at the point (0, 9) on the y-axis and intersects the x-axis at the point (9, 0). The line slants downward from left to right.
Here, we have,
We can rewrite the equation in slope-intercept form,
y = mx + b,
where m is the slope and b is the y-intercept.
To do this, we can rearrange the terms as follows:
y = 9 - x
y = -1x + 9
This gives us a slope of -1 and a y-intercept of 9.
We can plot the y-intercept at (0, 9) and use the slope to find another point on the line.
The slope tells us that for every increase of 1 in x, the value of y decreases by 1.
So, starting from (0, 9), we can move one unit to the right and one unit down to get another point (1, 8).
We can continue this process to find more points or connect the two points we already have to draw a line.
To graph the equation y = 9 - x, you can follow these steps:
Step 1: Create a table of values. Choose some x-values and substitute them into the equation to find the corresponding y-values. For simplicity, let's choose three values for x:
x | y = 9 - x
0 | 9 - 0 = 9
3 | 9 - 3 = 6
6 | 9 - 6 = 3
Step 2: Plot the points. Use the x-values from the table and their corresponding y-values to plot the points on the graph. The points are (0, 9), (3, 6), and (6, 3).
Step 3: Draw the line. Connect the plotted points with a straight line. The line should pass through all the plotted points.
The resulting graph should be a straight line that starts at the point (0, 9) on the y-axis and intersects the x-axis at the point (9, 0). The line slants downward from left to right.
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What are the answers to this I’m confused?
Answer:
Step-by-step explanation:
5,9.8,0,4
A spinner is divided into five colored sections that are not of equal size: red, blue, green, yellow, and purple. The spinner is spun several times, and the results are recorded below:
Spinner Results
Color Frequency
Red 20
Blue 9
Green 11
Yellow 7
Purple 16
Based on these results, express the probability that the next spin will land on red or green or purple as a decimal to the nearest hundredth.
Answer: 0.75
Step-by-step explanation:
The total frequency of all the colors is 20+9+11+7+16=63.
The probability of landing on red or green or purple is the sum of the frequencies of these three colors divided by the total frequency:
P(red or green or purple) = (20+11+16)/63
P(red or green or purple) ≈ 0.75(rounded to the nearest hundredth)
Therefore, the probability of the next spin landing on red or green or purple is approximately 0.75.
Answer:
0.75
Step-by-step explanation:
The total spins was 63. The total amount of spins for red, green or purple is 47.
Dividing, we get 47/63 ≈ 0.75.
Hope this helps!
b) Father is 30 years older than his son. After five years, he will be three times as old as his son will be. Find their present age.
Step-by-step explanation:
40 Years is the right answer
Answer:
son is 10 , father is 40
Step-by-step explanation:
let x be the sons age then father is x + 30
in 5 years
son is x + 5 and father is x + 30 + 5 = x + 35
at this time the father is three times as old as his son , then
x + 35 = 3(x + 5)
x + 35 = 3x + 15 ( subtract x from both sides )
35 = x + 15 ( subtract 15 from both sides )
20 = x
then sons age = x = 10 and fathers age = x + 30 = 10 + 30 = 40
Chang each expression into radical form and then give the value. no calculators should be necessary.
The value of the given expressions are as follows: a. 25 b. 4 c. 1/4 d. 1/3.
What is expression?In mathematics, an expression is a combination of symbols and/or numbers that represents a mathematical object or quantity. Expressions can be written using variables, operations, functions, and mathematical symbols such as parentheses, exponents, and radicals. An expression can represent a value, an equation, or a formula, and can be evaluated or simplified using mathematical rules and properties. Examples of expressions include 2x + 5, sin(θ), and (a + b)².
Here,
a. [tex]125^{2/3}[/tex]
radical form:
[tex]\sqrt{ (125^2)} = 125^{1/2}[/tex]
[tex]125^{1/2}[/tex] = √125
= 5√5
Therefore, [tex]125^{2/3} = (125x^{1/3})^{2}[/tex]
= [tex](5^3)x^{2/3}[/tex]
= [tex]5x^{3*2/3}[/tex]
= 5²
= 25
b. √16
In radical form:
√16 = 4
Therefore, [tex]16x^{-1/2} = \sqrt{16}[/tex]
= 4
c. [tex]16^{1/2}[/tex]
In radical form:
1/√16 = 1/4
Therefore, [tex]16^{-1/2} = 1/\sqrt{16}[/tex]
= 1/4
d.[tex]\sqrt[4]{81}[/tex]
In radical form:
[tex]\sqrt[4]{81}[/tex] = √(√81)
= √9
= 3
Therefore, [tex]\sqrt[4]{81} = 1/\sqrt[4]{81}[/tex]
= 1/3
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Use the unique factorization theorem to write the following integers in standard factored form. (a) 756 2^2.3^3.7. (b) 819 3^2.7.11 (c) 9,075 3^2.5^2.7
The factorizations of these integers above represent their factorizations into their respective prime numbers.
(a) 756 = 2^2.3^3.7, (b) 819 = 3^2.7.11, (c) 9,075 = 3^2.5^2.7The unique factorization theorem refers to an essential theorem in standard algebraic theory that characterizes the unique factorization properties of integers. Standard factored form, on the other hand, refers to an expression in which an integer is factored into its standard, irreducible components.In view of this, the three provided integers, 756, 819, and 9,075 can be factored as follows:756 = 2^2.3^3.7 (in standard factored form)819 = 3^2.7.11 (in standard factored form)9,075 = 3^2.5^2.7 (in standard factored form)Note that the factorizations of these integers above represent their factorizations into their respective prime numbers.
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Describe the translation of figure SPOT. Complete the sentence to explain your answer. Two squares plotted on the same coordinate plane. Square S P O T has vertices at (2, 3), (3, 2), (2, 1), and (1, 2). The corresponding vertices of square S prime P prime O prime T prime are at (5, 4), (6, 3), (5, 2), and (4, 3). Figure SPOT is translated unit(s) right and unit(s) up
Figure SPOT is translated unit(s) right and unit(s) up to the right move 8 and to the up move 9.
An effective method for beginning to make this idea clear for translating squares is to give them a slice-out shape to get across the page truly.
Afterward, kids need to figure out how to have the option to interpret a shape without this support.
while doing the above task, ideally, let's begin by putting the effective method for beginning making this idea clear for translating square is to give them a slice out shape to get across the page truly.
Afterward, kids need to figure out how to have the option to interpret a shape without this support.
while doing the above task, ideally, let's begin by putting the mark of your pencil on the upper left-hand corner of the shape and afterward dropping your pencil down 1 and right 2, then, at that point, plotting the primary place of your new shape with a dab.
You would then have to do likewise with the upper right-hand corner of the shape, the bottom left, and afterward the bottom right.
To respond to this, they would have to interpret the square and afterward give the directions of point An on the new shape, which would be (8, 9). mark your pencil on the upper left-hand corner of the shape and afterward drop your pencil down 5 and right 6, then, at that point, plot the primary place of your new shape with a dab.
You would then have to do likewise with the upper right-hand corner of the shape, the bottom left, and afterward the bottom right.
To respond to this, they would have to interpret the square and afterward give the directions of point An on the new shape, which would be (5, 4), (6, 3), (5, 2), and (4, 3).
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suppose the mean income of firms in the industry for a year is 80 million dollars with a standard deviation of 13 million dollars. if incomes for the industry are distributed normally, what is the probability that a randomly selected firm will earn less than 96 million dollars? round your answer to four decimal places.
The probability that a randomly selected firm will earn less than 96 million dollars is 0.8907
The given data is that the mean income of firms in the industry for a year is 80 million dollars with a standard deviation of 13 million dollars. Now, it is required to find the probability that a randomly selected firm will earn less than 96 million dollars if incomes for the industry are distributed normally.
The probability is calculated by the Z-score formula which is given as below:
z = (x - μ) / σ
Where,μ = 80 (Mean), x = 96 (Randomly selected firm income), σ = 13 (Standard deviation)
Putting the values in the formula we have,
z = (96 - 80) / 13z = 1.23
Now we will use the Z-table to find the probability value. From the Z-table, we can say that the probability of Z-score = 1.23 is 0.8907.
Therefore, the probability that a randomly selected firm will earn less than 96 million dollars is 0.8907 (approx) when rounded off to four decimal places.
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In ΔJKL, the measure of ∠L=90°, JK = 7. 3 feet, and KL = 4. 7 feet. Find the measure of ∠J to the nearest tenth of a degree
The measure of ∠J in ΔJKL is approximately 57.5 degrees.
The measure of ∠J in ΔJKL can be found using the trigonometric function tangent, which is defined as the ratio of the opposite side to the adjacent side.
The straight line that "just touches" the plane curve at a given point is called the tangent line in geometry. It was defined by Leibniz as the line that passes through two infinitely close points on the curve.
tan(∠J) = JK/KL
tan(∠J) = 7.3/4.7
∠J = arctan(7.3/4.7)
∠J = 57.5 degrees (rounded to the nearest tenth of a degree)
Therefore, the measure of ∠J in ΔJKL is approximately 57.5 degrees.
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The market capitalization rate on the stock of Flexsteel Company is 12%. The expected ROE is 13% and the expected EPS are Rs. 3. 60. If the firm's plowback ratio is 75%, what will be the P/E ratio?
As per the given metrics, the P/E ratio for Flexsteel Company is 6.9.
The capitalization rate of Flexsteel Company = 12%
Plowback ratio of Flexsteel Company = 75% = 0.75
Return on equity of Flexsteel Company = 13% = 0.13
Expected EPS of Flexsteel Company = Rs. 3.60
Calculating the growth rate -
Growth rate = Plowback ratio x Return on equity
Growth rate = 0.75 x 0.13
= 0.0975
Calculating the price-to-earnings (P/E) ratio -
P/E ratio = (Market capitalization rate - Growth rate) / (Return on equity - Growth rate)
= (0.12 - 0.0975) / (0.13 - 0.0975)
= 0.0225/0.0325
= 0.69 or 6.9
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the correlation coefficient may assume any value between : -1, and 1. 0 and 1. 0 and 8. -1, and 0. -infinity and infinity.
The correlation coefficient may assume any value between -1 and 1. Correct answer option A.
This means that the coefficient might be negative, zero, or positive, with -1 being a perfect negative correlation, 0 representing no connection, and 1 representing a perfect positive correlation.
The correlation coefficient is a numerical measure of two variables' linear connection. It is a measure of the strength of the link between two variables. A correlation coefficient of 1 indicates that there is a perfect positive connection, a coefficient of -1 indicates that there is a perfect negative correlation, and a coefficient of 0 shows that there is no correlation between the two variables.
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555 centigrams = 55.5 ________
decigrams
grams
decagrams
hectograms
555 centigrams = 55.5 GRAMS
The metric system is based on multiples of 10, where each unit is 10 times larger or smaller than the previous one. In this system, "centi-" means one hundredth, so 1 centigram is one hundredth of a gram. Therefore, 555 centigrams is equal to 5.55 grams (since there are 100 centigrams in 1 gram).
On the other hand, "deci-" means one-tenth, so 1 decigram is one-tenth of a gram. Therefore, 555 centigrams is also equal to 55.5 decigrams (since there are 10 decigrams in 1 gram).
In summary, 555 centigrams is equal to:
55.5 decigrams
5.55 grams
555 centigrams is equal to = 55.5 decigrams
Solution:1 cg is equal to 10 dg, therefore 555 cg is equivalent to 55.5 dg.
1 Centigram = 1 x 10 = 10 Milligrams
555 Centigrams = 555 / 10 = 55.5 Decigrams
-2y=6. 6x+9y=9 in substitution form
Answer:
[tex]y=-3,\:x=6[/tex]
Step-by-step explanation:
hope this helped :P
Benito made a wooden box to grow herbs on his patio. The box is 16 inches wide, 12 inches tall, and 28 inches long. He plans to fill the box exactly two-thirds full with potting soil. What volume of soil does Benito need? I know how to do this I just need to know if the two-thirds part is trying to throw me off
To fill the wooden box with potting soil precisely up to two-thirds of its capacity, Benito requires a volume of 3,584 cubic inches.
The volume of soil that Benito needs to fill the box two-thirds full can be calculated by finding two-thirds of the total volume of the box.
The volume of the box can be calculated by multiplying the width, height, and length:
16 inches (width) x 12 inches (height) x 28 inches (length) = 5,376 cubic inches.
Two-thirds of this volume can be found by multiplying the total volume by 2/3:
5,376 cubic inches x 2/3 = 3,584 cubic inches.
Therefore, Benito needs 3,584 cubic inches of potting soil to fill the box exactly two-thirds full.
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6. The desks at Ryder Middle School are shaped
like a rectangle with an area of 2x²-3x - 2
square inches. The length of the desk is 2x + 1
inches. Write an expression to represent the
width of the desk. (Hint: A = lw)
The equation for the area of a rectangle is A = lw, where l is the length and w is the width. We are given the area (2x² - 3x - 2) and the length (2x + 1). To solve for the width, we can rearrange the equation to w = A/l.
Therefore, the expression to represent the width of the desk is w = (2x² - 3x - 2)/(2x +1).
alexis created the two-way frequency table from information she gathered by asking 88 teenagers about their last online shopping experience. own money parents' money total completed purchase 16 34 50 just looked 22 16 38 total 38 50 88 about what percent of the teenagers purchased something with their parents' money?
The percentage of the teenagers who purchased something with their parents' money can be calculated from the two-way frequency table. About 38.64% of the teenagers purchased something with their parents' money.
There were a total of 88 teenagers who were surveyed by Alexis. 38 of them completed the purchase, and out of these 38 teenagers, 34 of them used their parents' money. So, the percentage of teenagers who purchased something with their parents' money can be calculated as follows:
Percent of teenagers who purchased something with their [tex]parents' money = \frac{Frequency of completed purchase}{Total Number of teenagers surveyed} *100[/tex]
Percent of teenagers who purchased something with their parents' money = [tex]\frac{34}{88} * 100%[/tex]%
Therefore percent of teenagers who purchased something with their parents' money = 38.64%
Therefore, about 38.64% of the teenagers purchased something with their parents' money.
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For what value of x, the fraction become undefined 6/x-3
Answer:
the value of x is 3
Step-by-step explanation:
6/3-3=6/0
which is undefinied
Answer:
3
Step-by-step explanation:
1. A 180-day simple interest loan in the amount of $16, 400 will be paid in full in the amount of $16, 851. Find the interest rate of
the loan. Use the banker's method, which uses 360 days in a year.
OR=5.5%
OR=5.0%
OR=4.5%
R= 6.0%
Answer:
Using the banker's method, we can use the following formula to find the interest:
Interest = (Principal x Rate x Days) / 360
Where,
Principal = $16,400
Amount = $16,851
Days = 180
We know that the interest plus the principal equals the amount, so we can set up the following equation:
Interest + Principal = Amount
Substituting the values:
(16,400 x Rate x 180) / 360 + 16,400 = 16,851
Multiplying both sides by 360:
16,400 x Rate x 180 + 5,904,000 = 6,066,360
16,400 x Rate x 180 = 162,360
Rate = 162,360 / (16,400 x 180)
Rate = 0.055 or 5.5%
Therefore, the interest rate of the loan is 5.5%.
Select the correct answer.Adam constructed quadrilateral PQRS inscribed in circle O. How can he prove PQRS is a square?A.He needs to show only that the diagonals are perpendicular.B.He needs to show only that the diagonals are perpendicular and congruent.C.He needs to show only that the diagonals are perpendicular and bisect each other.D.He needs to show that the diagonals are perpendicular, congruent, and bisect each other.
Adam needs to show that the diagonals are perpendicular, congruent, and bisect each other.Therefore Option D is correct.
To prove that PQRS is a square, Adam needs to show that all four sides are congruent and that all four angles are right angles.
One way to do this is by showing that the diagonals of PQRS are perpendicular, congruent, and bisect each other.
If the diagonals are perpendicular, then opposite angles are congruent and the quadrilateral is a kite.
If the diagonals bisect each other, then opposite sides are congruent and the kite is a rhombus.
If the diagonals are also congruent, then all sides are congruent and the rhombus is a square.
Therefore, He needs to show that the diagonals of PQRS are perpendicular, congruent, and bisect each other to prove that PQRS is a square.
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Student A can solve 75% of problems, student B can solve 70%. What is the probability that A or B can solve a problem chosen at random?
The probability that student A or B can solve a problem chosen at random is 0.95.
Probability is calculated by dividing the number of favourable outcomes by the number of possible outcomes.
Random: An event is referred to as random when it is not possible to predict it with certainty. The probability that either student A or B will be able to solve a problem chosen at random can be calculated as follows:
P(A or B) = P(A) + P(B) - P(A and B) where: P(A) = probability of A solving a problem = 0.75, P(B) = probability of B solving a problem = 0.7, P(A and B) = probability of both A and B solving a problem. Since A and B are independent, the probability of both solving the problem is:
P(A and B) = P(A) x P(B) = 0.75 x 0.7 = 0.525
Now, using the above formula: P(A or B) = P(A) + P(B) - P(A and B) = 0.75 + 0.7 - 0.525 = 0.925
Therefore, the probability that student A or B can solve a problem chosen at random is 0.95 (or 95%).
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We revisit a probabilistic model for a fault diagnosis problem from an earlier homework. The class variable C represents the health of a disk drive: C = 0 means it is operating normally; and C = 1 means it is in failed state. When the drive is running it continuously monitors itself using temperature and shock sensor, and records two binary features, X and Y. X =lif the drive has been subject to shock (e.g;, dropped) , and X = 0 otherwise Y =1if the drive temperature has ever been above 70*C, and Y = 0 otherwise. The following table defines the joint probability mass function of these three random variables: pxyc(r,y, c) 0.1 0.2 0.2 0 0 0 0 0 0 0.05 0.25
The probability of the disk drive being in a normal state is 0.5, and the probability of the disk drive being in a failed state is 0.3.
The given table represents the joint probability mass function of the random variables, pxyc (r, y, c). r, y, and c denote the temperature, shock sensor, and health status of the disk drive. The values of r, y, and c are binary.The joint probability mass function of three random variables r, y, and c can be represented as follows:pxyc (r, y, c)= P(r, y, c)Here,P(r=0, y=0, c=0)= 0.1, P(r=0, y=1, c=0)= 0.2, P(r=1, y=0, c=0)= 0.2,P(r=0, y=0, c=1)= 0, P(r=0, y=1, c=1)= 0, P(r=1, y=0, c=1)= 0,P(r=0, y=0, c=0)= 0, P(r=0, y=1, c=0)= 0, P(r=1, y=1, c=0)= 0.05,P(r=0, y=0, c=1)= 0.25, P(r=0, y=1, c=1)= 0, P(r=1, y=0, c=1)= 0.From the given table, the probability of the disk drive being in a normal state, C=0, is P(C=0)=P(r=0, y=0, c=0)+P(r=0, y=1, c=0)+P(r=1, y=0, c=0)=0.1+0.2+0.2=0.5Hence, the probability of the disk drive being in a failed state, C=1, is:P(C=1)=P(r=0, y=0, c=1)+P(r=0, y=1, c=1)+P(r=1, y=0, c=1)+P(r=1, y=1, c=0)=0.25+0+0+0.05=0.3Therefore, the probability of the disk drive being in a normal state is 0.5, and the probability of the disk drive being in a failed state is 0.3.
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Given: Triangle ABC is similar to triangle DEF, side BC = 19, angle ABC = 48, angle BCA = 73.
If the side DF = 15, then AB - EF = ?
Answer:
We are given two similar triangles, triangle ABC and triangle DEF, and some measurements of triangle ABC. We are also given that DF, one of the sides of triangle DEF, is equal to 15 units. Using this information, we are asked to find the difference between the lengths of sides AB and EF.
To solve the problem, we can first use the angle-angle similarity theorem to determine that the corresponding angles of the two triangles are equal. Therefore, angle DEF is equal to angle BCA, and angle ABE is equal to angle DFE.
Next, we can use the law of sines to find the length of side AB. The law of sines states that the ratio of the length of a side of a triangle to the sine of the angle opposite that side is equal for all sides and angles in the triangle. Applying this to triangle ABC, we have:
AB/sin(73) = BC/sin(48)
Substituting the value of BC as 19 units, we can solve for AB to get:
AB = 22.78 units
Similarly, we can use the law of sines to find the length of side EF. Since angle DFE is equal to angle ABE, we can use the same ratio as above to get:
EF/sin(73) = DF/sin(48)
Substituting the value of DF as 15 units, we can solve for EF to get:
EF = 18.20 units
Finally, we can subtract EF from AB to get:
AB - EF = 22.78 - 18.20 = 4.58 units
Therefore, the difference between the lengths of sides AB and EF is 4.58 units.
select the p-value(s) at which you would reject the null hypothesis for a two-sided test at the 90% confidence level. select all that apply.a. 0.9500b. 0.9000c. 0.8900d. 0.1100e. 0.0900f. 0.0500
The p values that would reject the null hypothesis are (f) 0.0500 and (e) 0.0900
Identifying the p values that would reject the null hypothesisTo reject the null hypothesis for a two-sided test at the 90% confidence level, we would compare the p-value to the significance level (alpha), which is equal to 1 - confidence level.
In this case, the confidence level is 90%, so alpha is 1 - 0.9 = 0.1.
Any p-value that is less than or equal to the significance level of 0.1 would lead to rejection of the null hypothesis.
So the p-values at which we would reject the null hypothesis are: 0.0500 and 0.0900
Therefore, the correct answers are options, (e), and (f).
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Use context to determine the meaning of the word unabated as it is used in Narrative of the Life of Frederick Douglass, An American Slave. Write your definition of unabated here and tell how you found it.
The wοrd "unabated" is used in Narrative οf the Life οf Frederick Dοuglass, An American Slave.
The wοrd "unabated" in this cοntext can be interpreted tο mean "cοntinuing withοut any reductiοn in intensity οr strength." "That cheerful eye, under the influence οf slavery, swοre red with rage; that vice, made all οf sweet accοutrement, changed tο a οne οf harsh and hοrrid discοrd; and that angelic face gave way tο that οf a demοn."
The authοr is describing hοw the slavehοlder's pοwer οver the slaves cοrrupts the wοman's character, turning her previοusly kind demeanοur intο οne οf rage and discοntent. The wοrd "unabated" emphasises hοw persistent and unyielding this transfοrmatiοn is and hοw unlikely it is that it will diminish.
By examining the surrοunding text and cοmmοn usage, I was able tο determine the definitiοn οf the wοrd "unabated." In this sentence, the authοr's descriptiοn οf the slavehοlder's transfοrmatiοn is well-suited tο the wοrd "unabated," which is generally used tο describe sοmething that cοntinues withοut any lοss οf intensity οr strength.
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1. y = (x - 5)(x + 1), Find y if x = - 3.
2. v= u + at
(a)
YEAR 7 HOME WORK
Work out v when u = 23, a = 4, and t = 3
(b)
Work out u when v= 30, a = 2 and t = 8
(c) Work out t when v = 40, u = 12 and a = 4
3. The circumference of a circle can be found using the formula C = 2nr or C = nd
Find the circumference of a circle with radius 8 cm.
Leave your answer to one decimal place.
4. Speed is calculated using the formula S=
Find the speed at which a car travelled if it took 2 hours to travel a distance of 100 km
D
T
where D is distance and T is time.
Answer:
1) y=-2, y=-8
2a) v=35
b) u=12
c) t=7
3) c=50.3
4) s=50
1 ]
Given:-
[tex] \tt{y = ( x - 5 ) ( x + 1 ) }[/tex][tex] \: [/tex]
[tex] \tt{x = - 3}[/tex][tex] \: [/tex]
To find:-
[tex] \tt \: y = ?[/tex][tex] \: [/tex]
Solution:-
[tex] \tt{y = ( x - 5 ) ( x + 1 )}[/tex][tex] \: [/tex]
now , put the value of x = -3 in equation
[tex] \tt \: y = ( -3 - 5 ) ( -3 + 1 )[/tex][tex] \: [/tex]
[tex] \tt \: y = ( - 8 ) ( - 2 )[/tex][tex] \: [/tex]
or
[tex] \tt \: y = 16 [/tex][tex] \: [/tex]
[tex] \texttt{The value of \boxed{ \tt \red{ y = ( -8 ) ( -2 )} } \: or \boxed{ \tt \red{ 16}} !}[/tex]
[tex] \: [/tex]
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2 ]
[tex] \texttt{v = u + at} \: - - - \texttt{given \: formula \: or \: eqn}[/tex]
a ) ----»
Given:-
[tex] \tt \: u = 23 [/tex][tex] \: [/tex]
[tex] \tt \: a = 4[/tex][tex] \: [/tex]
[tex] \tt \: t = 3[/tex][tex] \: [/tex]
To find:-
[tex] \tt \: v = ?[/tex][tex] \: [/tex]
Solution:-
[tex] \tt \: v = u + at[/tex][tex] \: [/tex]
now , put the given value in equation
[tex] \tt \: v = 23 + 4×3[/tex][tex] \: [/tex]
[tex] \tt \: v = 23 + 12[/tex][tex] \: [/tex]
[tex] \boxed{\tt \purple{ v = 35}}[/tex][tex] \: [/tex]
____________________________________
b )
Given:-
[tex] \tt \: v = 30[/tex][tex] \: [/tex]
[tex] \tt \: a = 2 [/tex][tex] \: [/tex]
[tex] \tt \: t = 8[/tex][tex] \: [/tex]
To find:-
[tex] \tt \: u = ?[/tex][tex] \: [/tex]
Solution:-
[tex] \tt \: v = u + at[/tex][tex] \: [/tex]
put the given value in equation
[tex] \tt \: 30 = u + 2×8[/tex][tex] \: [/tex]
[tex] \tt \: 30 = u + 16[/tex][tex] \: [/tex]
[tex] \tt \: 30 - 16 = u[/tex][tex] \: [/tex]
[tex] \tt \: 14 = u[/tex][tex] \: [/tex]
[tex] \boxed{ \tt \pink{ u = 14}}[/tex][tex] \: [/tex]
____________________________________
c )
Given:-
[tex] \tt \: v = 40[/tex][tex] \: [/tex]
[tex] \tt \: u = 12[/tex][tex] \: [/tex]
[tex] \tt \: a = 4[/tex][tex] \: [/tex]
To find:-
[tex] \tt \: t = ?[/tex][tex] \: [/tex]
Solution:-
[tex] \tt \: v = u + at[/tex][tex] \: [/tex]
now , put the given value in equation
[tex] \tt \: 40 = 12 + 4t[/tex][tex] \: [/tex]
[tex] \tt \: 40 - 12 = 4t[/tex][tex] \: [/tex]
[tex] \tt \: 28 = 4t[/tex][tex] \: [/tex]
[tex] \tt \cancel \frac{28}{4} = t[/tex][tex] \: [/tex]
[tex] \tt \: 7 = t[/tex][tex] \: [/tex]
[tex] \boxed{\texttt{ \green{t = 7}}}[/tex][tex] \: [/tex]
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3 ]
Given:-
[tex] \tt \: radius = 8[/tex][tex] \: [/tex]
To find:-
[tex] \texttt{circumference of circle = ?}[/tex][tex] \: [/tex]
By using given formula:-
[tex] \underline{ \tt \: \: C = 2πr \: \: }[/tex][tex] \: [/tex]
Solution:-
[tex] \tt \: C = 2πr [/tex][tex] \: [/tex]
[tex] \texttt{C = 2× 3.14× 8 [ as we know that the value of π = 3.14 constant ]}[/tex][tex] \: [/tex]
[tex] \tt{C = 16 × 3.14}[/tex][tex] \: [/tex]
[tex] \tt{C = 50.24}[/tex][tex] \: [/tex]
[tex] \texttt{The Circumference of the circle is { \blue{50.24}} !}[/tex]
[tex] \: [/tex]
━━━━━━━━━━━━━━━━━━━━━━━━━━━
4 ]
Given:-
[tex] \texttt{Time ( T ) = 2h}[/tex][tex] \: [/tex]
[tex] \texttt{Distance ( D ) = 100km}[/tex][tex] \: [/tex]
To find:-
[tex] \texttt{Speed ( S ) = ?}[/tex][tex] \: [/tex]
By using formula:-
[tex] \underline{\tt{ \: \: Speed= \frac{Distance}{Time} \: \: }}[/tex][tex] \: [/tex]
Solution:-
[tex] \tt \: S = \frac{D}{T} [/tex][tex] \: [/tex]
[tex] \tt \: S = \cancel\frac{100}{2} [/tex][tex] \: [/tex]
[tex] \tt \: S = 50[/tex][tex] \: [/tex]
[tex] \texttt{The Speed of the car is \color{green}50.}[/tex]
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hope it helps⸙
At the end of the reaction, Marco finds that the mass of the contents of the
beaker is 247 g. He repeats the experiment and gets the same result.
a Has he made a mistake?
Suggest why Marco got this result. how the
b
Answer: To determine if Marco has made a mistake, we would need to know the expected mass of the contents of the beaker before the reaction took place. If the expected mass was 247 g or close to it, then Marco may not have made a mistake.
However, if the expected mass was significantly different from 247 g, then it is possible that Marco made a mistake in his experiment. It could be a measurement error, a calculation error, or a procedural error.
There are several reasons why Marco may have obtained a mass of 247 g at the end of the reaction. One possibility is that the reaction produced a product that was relatively volatile, and some of it was lost during the experiment. Another possibility is that Marco did not completely dry the product before weighing it, which could result in a higher measured mass due to the presence of residual moisture.
To determine the exact reason why Marco obtained a mass of 247 g, further investigation and experimentation would be needed.
Step-by-step explanation:
All the students in the sixth grade either purchased their lunch or brought their lunch from home on Monday.
* 24% of the students purchased their lunch
* 190 students brought their lunch from home.
How many students are in the sixth grade?
24% of the students bought their lunch on Monday. Therefore, the number of students in the 6th grade is 190
Step-by-step explanation:
Translate the sentence into an inequality.
The sum of a number times 10 and 27 is greater than 26.
The solution to the inequality is for the statement is x > -1/10.
What is inequality?A mathematical statement known as an inequality compares two values and illustrates their connection using symbols like (less than), > (greater than), (less than or equal to), or (greater than or equal to). When two quantities are not equal or one is greater or smaller than the other, this is expressed as an inequality. A set of values that fulfil the inequality is the answer to an inequality.
The statement can be translated into an inequality as follows:
10x + 27 > 26
10x > -1
x > -1/10
where x represents the unknown number.
Hence, the solution to the inequality is x > -1/10.
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