Answer:
1,73205
Step-by-step explanation:
First, count out the five decimal places, and then look at the sixth place:
[tex]\sqrt{3}[/tex] ≈ 1,73205 | 0807...
The sixth decimal is less than 5, so we round to the smaller side.
The vehicle preference of police officers and firefighters is given in the table.
Police Officers Firefighters
Cars 12 3
Trucks 9 4
SUVs 15 2
Based on the information in the table, which of the following is an example of independent events.
Based on the information in the table, an example of independent events is the: P(policer officer and chooses car).
What is an independent event?An independent event can be defined as an event that isn't dependent on other events. Thus, it isn't affected by any previous event.
Based on the information provided, we can infer and logically deduce that an example of independent events is the probability of being a policer officer and chooses a car because they aren't overlapping probabilities.
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The median for the samples from the 30 mile race of cars and SUVs are:
The median of Sample 1 for cars is 132.
The median of Sample 2 for SUVs is 115.
What conclusions can you derive from the random samples?
The sample size was too small to derive a valid conclusion.
SUVs can perform well under testing conditions.
Cars and SUVs performed equally well.
Cars are slower than SUVs.
Cars are faster than SUVs.
A conclusion which can be derived from these random samples is that: E. Cars are faster than SUVs.
What is a median?A median can be defined as the middle number (center) of a sorted data set, which is typically when the data set is arranged in from the least to greatest or the greatest to least.
In Mathematics, the median of a data set is generally considered to be a better measure of center than the mean when there's an outlier in the data set.
Based on the information provided for these random samples from the race, we can infer and logically conclude that Cars are faster than SUVs because a median speed of 132 is greater than a median speed of 115.
In conclusion, it is important to note that the Cars used in this survey (research) are faster than SUVs because the median for the SUVs in Sample 2 is equal to 115 while the median for the Cars in Sample 1 is equal to 132.
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Use this information to answer the questions.
You are helping plan your sister's wedding. You decide to help set up a night to prepare the decorations and gift bags, but worry it all won't get done and you will be stuck doing the rest by yourself. Use the information below to help you know how long it will take to get everything done.
1.
You plan to have 2 people work on each task. How would you pair them up to complete each task in the shortest amount of time? Explain using rational expressions.
2.
What is the shortest amount of time it would take to complete all the tasks? If you know people have to leave your house by 9pm, what time should they come over to get started? Explain using rational expressions.
The shortest possible time to perform the tasks is 30 minutes, these activities would be performed in this time by the couple made up of you and your aunt 1.
How to calculate the shortest time to perform the wedding tasks?To calculate the shortest time to complete the wedding tasks, we must carefully observe the information in the table and identify the time that each person takes to complete the tasks. Subsequently, we must identify the people who take the shortest time, in this case it is you and your aunt 1 as shown below:
You
2.5 + 5 + 1.5 = 9 hoursaunt 1
1.5 + 4 + 3 = 8.5 hours.Additionally, we must subtract the two values, to know how long it will take in total for both people to perform the three required activities.
9 - 8.5 = 0.5 hours = 30 minutesAccording to the above, the most efficient couple is your aunt 1 and you because you will take 30 minutes to complete the activities.
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Your team is adding a new external feature to increase daily active users. What metrics would you consider to determine if the new feature will be successful
Some of the metrics that I would look at to determine whether or not a new feature will be successful are as follows:
How many people use the feature on a daily basis.How long do people spend using the feature.How often do people use the feature.How many people finish tasks using the feature.What are metrics?It should be noted that metrics are the measures of quantitative assessment used for comparing, and tracking performance or production.
Metrics are heavily relied on in the financial analysis of companies to make decisions.
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Roco draws two shapes. one of his shapes is 4 times longer and 4 times wider than the other. he found that the perimeter of the larger shape is 6 times larger than the perimeter of the smaller shapes and that the area is 16 times larger. is he correct? what did he calculate correctly: area, perimeter or both?
If two squares have different perimeters, the one with the larger perimeter will have a larger area. If two polygons have the same perimeter, then they must have the same shape. If two polygons have the same shape but are different sizes, then they must have different perimeters.
If two squares have equal areas, they will also have sides of the same length. But although "equal areas mean equal sides" is true for squares, it is not true for most geometric figures.
In order to find the perimeter or distance around the rectangle, we need to add up all four side lengths. This can be done efficiently by simply adding the length and the width, and then multiplying this sum by two since there are two of each side length.
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Evaluate 5a + 5b, where a
=
-6 and b = -5.
Substitute -6 in a and -5 in b
5(-6) + 5(-5)
-30+(-25)
=-55
Hope it helps!
Answer:
-55
5x-6 = -30
5 x -5 = -25
-25 + -30 = -55
Step-by-step explanation:
hope this helps
Instructions: Find the measure of the indicated angle to the nearest degree.
The measure of the indicated angle to the nearest degree is 47°.
What is the measure of the angle?Given the data in the question;
Adjacent = 36Hypotenuse = 53Angle θ = ?From trigonometric ratio, Cosθ = Adjacent / Hypotenuse
Cosθ = 36/53
θ = cos⁻¹( 36/53 )
θ = 47°
Therefore, the measure of the indicated angle to the nearest degree is 47°.
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What is the distance between the points (-8, -3) and (-2, -5)?
The distance between the points (-8, -3) and (-2, -5) is √40 units
How to find distance between two points?Using distance formula,
d = √(x₂ - x₁)² + (y₂ - y₁)²
Therefore, using (-8, -3) and (-2, -5).
x₁ = -8
x₂ = -2
y₁ = -3
y₂ = -5
d = √(-2 + 8)² + (-5 + 3)²
d = √(6)² + (-2)²
d = √36 + 4
d = √40
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hwlppppppp!!!!!!!!!
look at pic
The correct option is the third one:
-1 ≤ y - 3 and y - 3 ≤ 1
Which compound inequality represents the absolute value inequality?
Here we have:
|y - 3| - 4 ≤ -3
We can rewrite it to:
|y - 3| ≤ -3 + 4
|y - 3| ≤ 1
This can be decomposed in two inequalities, which are:
(y - 3) ≤ 1
(y - 3) ≥ -1
Then we can see that the correct option is the third one, as both inequalities must be meet.
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HELP NOW GIVING BRAINLIEST AND 15 POINTS THANK U :) <3
Answer:
its not 15 points ):
Step-by-step explanation:
True or false: If neither variation in an A/B is statistically better, you pick the variation you like best and proceed to make the change.
It is false to state that " If neither variation in an A/B is statistically better, you pick the variation you like best and proceed to make the change."
What is A/B Testing?A/B testing compares two variations of a website element, often by evaluating users' responses to variant A vs. variant B and determining which of the two variants is more successful.
When the variation seems to be equal, then another factor must be introduced into the metric analysis that helps to make the testing objective.
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Suppose the average commute time of your employees is unknown. The standard deviation of their commute time is estimated as 24.5 minutes. How many employees must be included in a sample to create a 90 percent confidence interval for the average commute time with a confidence interval width of no more than 13 minutes
The number of employees is 91.
According to the statement
Given that the standard deviation = 24.5
The width in the question = 13
We solve for the margin of error E.
E = width / 2
E= 13/2 = 6.5
At 90%
Alpha = 1-0.90
= 0.1
Alpha/2 = 0.1/2 = 0.05
Z 0.05 = 1.576
Now find the Sample size n
= ((1.576x24.5)/2)²
= 90.8
= 91
So, The number of employees is 91.
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Suppose you are an engineer trying to recreate an experiment involving a weight on the end of a spring. This simulation will give you an idea of what the experiment will look like. For more information, you can visit this simple harmonic motion website. You are given the equation y(t)=2 sin 4 pi t + 5 cos 4pi t, which models the position of the weight, with respect to time. You need to find the amplitude of the oscillation, the angular frequency, and the initial conditions of the motion. You will also be required to find the time(s) at which the weight is at a particular position. To find this information, you need to convert the equation to the first form, y(t) = A sin (wt+0).
The canonical expression equivalent to sinusoidal model y(t) = 2 · sin (4π · t) + 5 · cos (4π · t) is y(t) = (√ 29) · sin (4π · t + 0.379π) .
How to find the canonical form of the equation for simple harmonic motion
Herein we have a simple harmonic motion model represented by a sinusoidal expression of the form y(t) = A · sin (C · t) + B · cos (C · t), which must be transformed into its canonical form, that is, y(t) = A' · sin (C · t + D). We proceed to perform the procedure by algebraic and trigonometric handling.
The amplitude of the canonical function is determined by the Pythagorean theorem:
A' = √(2² + 5²)
A' = √ 29
The angular frequency C is the constant within the trigonometric functions from the non-canonical formula:
C = 4π
Then, we find the initial position of the weight in time: (t = 0)
y(0) = 2 · sin (4π · 0) + 5 · cos (4π · 0)
y(0) = 5
And now we calculate the angular phase below: (A' = √ 29, C = 4π, y = 5)
5 = √ 29 · sin (4π · 0 + D)
5 / √ 29 = sin D
D ≈ 0.379π rad
The canonical expression equivalent to sinusoidal model y(t) = 2 · sin (4π · t) + 5 · cos (4π · t) is y(t) = (√ 29) · sin (4π · t + 0.379π) .
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URGENT WILL GIVE BRAINLIEST
Answer:
27.7 m²
Step-by-step explanation:
Area of equilateral triangle:In regular polygon, all the sides and angles are equal. The polygon in the picture is a equilateral triangle.
a = 8 m
√3 = 1.732
[tex]\sf \boxed{\bf Area \ of \ equilateral \ triangle= \dfrac{\sqrt{3}a^2}{4}}[/tex]
[tex]\sf =\dfrac{1.732 * 8 * 8 }{4}\\\\ = 1.732*2*8\\\\= 27.71\\\\= 27.7 \ m^2[/tex]
What are the domain and range of the function below? graph
domain: [0,00)
range: (-00,00) domain [0,00) range: (-00,4] domain: (0,4) range:(-00,00) domain: (-00,4] range: [0,00)
The domain and range of the function is D) Domain: (-∞, ∞); Range: (-∞, ∞)
How to illustrate the information?The domain is the input values, or the x values. We can put in any x values for this function.
Domain : (-∞, ∞)
The range is the output values or the y values. We can get any output values for this function
Range: (-∞, ∞)
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Complete question:
What are the domain and range of the function below?
A) Domain: (-∞, -5)
Range: (5, ∞)
B) Domain: (-5, -10)
Range: (5, 10)
C). Domain: (-5, 10)
Range: (-10, 5)
D) Domain: (-∞, ∞)
Range: (-∞, ∞)
Question 12 of 20
Subtract.
(2x²+5)-(4x-3)
OA. 2x²-4x+2
OB. -2x² +8
OC. 2x2²-4x+8
OD. -2x²+2
Answer:
C
Step-by-step explanation:
Distribute the negative, (2x^2 + 5) + (-4x+3)
Add like terms, 2x^2 - 4x +(5+3)
2x^2-4x+8
What steps may be necessary to predict data not included in a data set using a scatter plot and line of best fit? Select all that apply.
the necessary steps to predict data not included in a data set using a scatter plot and line of best fit are Options 2, 3, 4
Graph the data in a scatter plotExtend the line of best fit beyond the dataFind the average of the dataSteps involved in predicting dataIn using the line of best fit also known as the slope, they following steps are involved;
Draw the line of best fitFind the direction of association between the two variablesIn using scatterplot, they following steps are involved;
Draw line of best fit that passes close to most of the data pointsApproximately half of the data points should be below the line and half of the points above the lineThis explains that the average of the set of data is found from the scatter plot and line of best fit.
Thus, the necessary steps to predict data not included in a data set using a scatter plot and line of best fit are Options 2, 3, 4
Graph the data in a scatter plot
Extend the line of best fit beyond the data
Find the average of the data
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Consider a standard deck of playing cards. If 5 cards are selected randomly without replacement from this deck then what is the probability that all of these are red
The probability that all of the cards drawn are red is 0.0253.
How can we find the probability?A standard deck of playing cards has 52 cards.
Of the 52 cards, 26 of the cards are red cards.
When we draw the first card, the probability of getting red is 26/52.
When we draw the second card, the probability of getting red is 25/51.
When we draw the third card, the probability of getting red is 24/50.
When we draw the fourth card, the probability of getting red is 23/49.
When we draw the fifth card, the probability of getting red is 22/48.
Therefore, the probability of drawing 5 red cards without replacement is
= [tex]\frac{26}{52}* \frac{25}{51}* \frac{24}{50} *\frac{23}{49}* \frac{22}{48}[/tex]
= 26*25*24*23*22/52*51*50*49*48
= 0.0253
Therefore, we have found that the probability that all cards drawn are red is 0.0253.
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Is someone able to help me? You don’t have to explain just give answers
a. The continuous growth rate of the bacteria is 21%
b. The initial population of bacteria is 715
c. The culture will contain 2043 bacteria after 6 × 10⁻⁴ years
a. What is the continuous rate of growth of this bacteria population?Since [tex]n(t) = 715e^{0.21t}[/tex] represents the number of bacteria in the culture.
This function is similar to an exponential function of the form [tex]y(t) = Ae^{\lambda t}[/tex] where λ = growth rate
Comparing n(t) and y(t), we see that λ = 0.21
So, the continuous growth rate of the bacteria is 0.21 = 0.21 × 100 %
= 21%
So, the continuous growth rate of the bacteria is 21%
b. What is the initial population of the culture?Since [tex]n(t) = 715e^{0.21t}[/tex] represents the number of bacteria in the culture, the initial population of bacteria is obtained when t = 0.
So, [tex]n(t) = 715e^{0.21t}[/tex]
[tex]n(0) = 715e^{0.21(0)} \\= 715e^{0} \\= 715 X 1\\= 715[/tex]
So, the initial population of bacteria is 715
c. When will the culture contain 2043 bacteria?To find the time when the number of bacteria will be 2043, this means n(t) = 2043.
Since [tex]n(t) = 715e^{0.21t}[/tex]
Making t subject of the formula, we have
t = ㏑[n(t)/715]/0.21
So, substituting n(t) = 2043 into the equation, we have
t = ㏑[n(t)/715]/0.21
t = ㏑[2043/715]/0.21
t = ㏑[2.8573]/0.21
t = 1.05/0.21
t = 4.99
t ≅ 5 hours
Converting this to years, we have t = 5 h × 1 day/24h × 1 year/365 days
= 5/8760
= 5.7 × 10⁻⁴ years
≅ 6 × 10⁻⁴ years
So, the culture will contain 2043 bacteria after 6 × 10⁻⁴ years
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The median for the samples from the school math contest are:
The median of Sample 1 from Grades 9 and 10 is 79.
The median of Sample 2 from Grades 11 and 12 is 86.
What conclusions can you derive from the random samples?
The students performed equally between all the grades.
The students in grades 11 and 12 scored higher than the students in grades 9 and 10.
The students in grades 11 and 12 are likely to do well in college.
The students in grades 9 and 10 were not allowed enough time in the school math contest.
The sample size was too small to derive a valid conclusion
A conclusion which can be derived from these random samples is that: B. the students in grades 11 and 12 scored higher than the students in grades 9 and 10.
What is a median?A median can be defined as the middle number (center) of a sorted data set, which is when the data set is arranged in from the greatest to least or the least to greatest.
In Mathematics, the median of a data set is generally considered to be a better measure of center than the mean when there's an outlier in the data set.
Based on the information provided for these samples, we can logically conclude that the students in grades 11 and 12 scored higher than the students in grades 9 and 10 because a median score of 86 is greater than a median score of 79.
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A quantity with an initial value of 570 grows exponentially at a rate of 35% every 2
decades. what is the value of the quantity after 39 years, to the nearest hundredth?
After 39 years, the value of this quantity is 1,023.35
What is the value after 39 years?Here we know that:
The initial value is 570.There is an exponential growth.The rate of growth is 35% for every 2 decades (20 years).Then the exponential equation is:
[tex]A(t) = 570*(1 + 0.35)^{t/20}[/tex]
Where t is the time in years.
So, after 39 years, the value of this quantity is given by:
[tex]A(39) = 570*(1 + 0.35)^{39/20} = 1,023.35[/tex]
After 39 years, the value of this quantity is 1,023.35
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An Independent group experiment or between-subjects experiment comparing four treatment conditions produces 20 scores in each treatment condition. How many individuals participated in the entire experiment
The number of individuals who participated in the entire experiment was 80.
In the question, we are informed that an Independent group experiment or between-subjects experiment comparing four treatment conditions produces 20 scores in each treatment condition.
We are asked to find the number of individuals who participated in the entire experiment.
The number of treatment conditions in the experiment is given to be 4.
The scores in each treatment condition for the experiment is given to be 20.
The total number of individuals who participated in the experiment will be the product of the number of treatment conditions in the experiment and the scores in each treatment condition for the experiment.
Thus, the number of individuals who participated in the entire experiment = 4*20 = 80.
Thus, the number of individuals who participated in the entire experiment was 80.
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3. Jorge earns a 9% commission on all of his sales. He had sales of
$89,400 for the month. Harris works for a different company, and also
sold $89,400 for the month but made $447 more than Jorge. What is
Harris' commission rate?
The commission rate exists at $8,493 with a rate of 9.5%.
How to estimate the commission rate?
Jorge earns 9% from all his sales, so his commission exists
89400 × 0.09 = $8046
Harris made $447 more than that, so his commission exists
8046 + 447 = $8493
To estimate his commission rate, we can utilize the subsequent equation
89400 × rate percentage = 8493
Rate percentage = 8493 / 89400
Rate percentage = 0.095
Rate percentage = 9.5%
So Harris' commission exists at $8,493 with a rate of 9.5%.
Therefore, the commission rate exists at $8,493 with a rate of 9.5%.
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Volume=
Help me please
I appreciate it so much :)
The volume of the given solid is 6322.75 cubic units.
What is the volume of the given figure?
It is given that,
The area of the regular pentagonal base, a = 35 units
Altitude of the given pyramid, h = 9 units
The formula for the volume of a pyramid with regular pentagonal base is given by,
V = (5/12) × tan(54°)ha²
Substituting the given values of a and h, we get the volume as,
V = (5/12) × tan(54°) × 9 × (35)²
V = (5/12) × (1.376) × 9 × 1225
V = (5/4) × (1.376) × 3 × 1225
V = (5/4) × 5056.8
V ≈ 6322.75 units³
Thus, the volume of the given figure comes out to be approximately equal to 6322.75 cubic units.
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Please help!
I don't understand part B.
The median value of x is 2.
According to the statement
we have given the values of x at some points then
and we have to find the median for the x.
We know that the median formula is {(n + 1) ÷ 2}th, where “n” is the number of items in the set and “th” just means the (n)th number.
and after put the values in this formula we get our median value for x.
So,
we have given that the f(x) is 0.2 when x is from -1 to 0
and f(x) is 0.2 +1.2x when x is grater than 0 but less than 1
and f(x) is 0 when x is less than -1 or grater than 1
From these statements it is clear that the the f(x) is only exist when the x lies in between from the -1 to 1.
So, the total value of x becomes is -1,0,1
Then according to the median formula
median = (n + 1) ÷ 2
median = (3+1) / 2
median = 2.
So, The median value of x is 2.
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Write an equivalent expression by distributing the "-−" sign outside the parentheses: -(-8r-9.8s)+8.1
Answer: 8r + 9.8s + 8.1
Step-by-step explanation:
Given:
-(-8r-9.8s)+8.1
Distribute:
↳ A - times a - becomes a +, a -times a + stays a -
8r + 9.8s + 8.1
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4. Alex is painting a house. He uses 1/3 of the
paint he bought on the dining room. He uses
twice as much on the living room as on the
kitchen, where he uses 1 ½ gallons. He has 12
gallons of paint left. How much paint did Alex
buy?
Alex bought 24.75 gallons of paint to use for the house painting.
What is an equation?An equation is an expression that shows the relationship between two or more variables and numbers.
Let x represent the amount of paint bought by Alex, hence:
(1/3)x + 3/2 + 2(3/2) + 12 = x
X = 24.75 GALLONS
Alex bought 24.75 gallons of paint to use for the house painting.
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Which options reflect the requirements for factoring using quadratic form? (Select all that apply.)
Answer:
The exponent of the first term must have twice the value of the exponent of the second term.
Step-by-step explanation:
Which expression is equivalent to 21/15 - 915?
A. 12
B. 30 15
c. 125
D. 12 15
[tex]\textbf{Heya !}[/tex]
the denominators are equal, so subtracting these two fractions is a piece of cake:-
[tex]\sf{\cfrac{21}{15}-\cfrac{9}{15}}[/tex]
[tex]\sf{\cfrac{21-9}{15}}[/tex]
[tex]\sf{\cfrac{12}{15}}[/tex]
`hope it's helpful to u ~
Order the number from least to greatest square root of 1, 1/3,2.5,square root of 2
The required order of the number from least to greatest square root is
1/√3 < √1 < √2 < √2.5
Which number is greatest in value:
In the above numbers 1, 1/3 and 2.5 do not have square roots.
So, we will write 1, 1/3 and 2.5 inside the square root as shown below.
√1 = 1
√(1/3) = 1/√3 = 0.577350269
√2.5 = 1.58113883
√2 = 1.414
Arranging these numbers according to their value, we get the order as-
0.577350269 < 1 < 1.414 < 1.581138831
Hence, the required order of the number from least to greatest square root is 1/√3 < √1 < √2 < √2.5.
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