Answer:
2 hours to meet each other
Step-by-step explanation:
Answer:
1.5
Step by step explanation:
Complete the table for
y = x/4 -1
Answer:
X Y
0 -1
2 -0.5
4 0
6 0.5
8 1
Step-by-step explanation:
I hope i got that right
Can someone solve this please
Answers:
11.) 0.25
12.) 3:20
13.) 0.75
14.) 19
Answer:
Question 11: 0.25
Question 12: 3:20
Question 13: 0.75
Question 14: 19
The force acting on a beam was measured 5 times under the same operating conditions. This process was repeated by 3 observers, resulting in 3 sets of data. The standard deviations of these data sets were: Standard Deviation 1= 1.11, Standard Deviation 2= 0.99, Standard Deviation 3= 1.15 The corresponding mean values were: 52.3, 51.5, and 52.7, respectively. Compute the Pooled Standard Deviation for these data sets. (Provide your answer using two decimal places)
Answer:
The Pooled Standard Deviation for these data sets is 1.09
Step-by-step explanation:
Given that;
Standard Deviation 1 = 1.11
Standard Deviation 2 = 0.99
Standard Deviation 3 = 1.15
pooled standard deviation is given as;
[tex]S_{pooled}[/tex] = (n1 - 1 )s1² + ..... + ( nk - 1 )sk² / n1 + ..... + nk - 1
where n1, n2....., nk are the sample sizes of k groups and s1, s2, ....., sk are the standard deviations of k groups respectively
so for the 3 groups;
[tex]S_{pooled}[/tex]² = (n1 - 1 )s1² + (n2 - 1 )s2² + ( n3 - 1)s3² / n1 + n2 + n3 - 3
we substitute
[tex]S_{pooled}[/tex]² = (5 - 1 )1.11² + (5 - 1 )0.99 ² + ( 5 - 1)1.15² / 5 + 5 + 5 - 3
[tex]S_{pooled}[/tex]² = (4.9284 + 3.9204 + 5.29) / 12
[tex]S_{pooled}[/tex]² = 14.1388 / 12
[tex]S_{pooled}[/tex]² = 1.1782
[tex]S_{pooled}[/tex] = √1.1782
[tex]S_{pooled}[/tex] = 1.08544 ≈ 1.09
Therefore, The Pooled Standard Deviation for these data sets is 1.09
Solve the system of linear equations by elimination. 8x-5y=11 4x-3y=5
Answer:
(x,y)= ( 5 over 273, - 265 over 273)
Step-by-step explanation:
After solving the obtained equation with the elimination method the obtained value of x and y will be 2 and 1 respectively.
What is a linear equation?It is defined as the relation between two variables, if we plot the graph of the linear equation we will get a straight line.
If in the linear equation, one variable is present, then the equation is known as the linear equation in one variable.
It is given that,
8x-5y=11 ------ (1)
4x-3y=5 --------- (2)
In order to solve the above equation with the elimination method, we have to apply the multiplicative distribution law as,
Multiply by 2 in equation 2
2(4x-3y=5)
8x- 6y = 10 ----- (3)
Subtract equation 3 from equation 1,
(8x- 6y)-(8x-5y) = 10 - 11
8x-8x-6y+5y = -1
-y = -1
y=1
Substitute the value of y in any of the equations 1 to get the value of x
8x-5y=11
8x-5(1)=11
8x-5=11
8x=16
x=2
Thus, after solving the obtained equation with the elimination method the obtained value of x and y will be 2 and 1 respectively.
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If f(x) = x3+ x2and g(x) = x4+ x2+ x, what is the value of f(x) –g(x) when x = 1?
A) -2
B) -1
C) 1
D) 5
Answer:
B) -1Step-by-step explanation:
[tex]f(x)=x^3+x^2\\\\g(x)=x^4+x^2+x[/tex]
METHOD 1[tex]f(x)-g(x)=(x^3+x^2)-(x^4+x^2+x)=x^3+x^2-x^4-x^2-x\\\\=-x^4+x^3-x\\\\x=1\\\\-1^4+1^3-1=-1+1-1=-1[/tex]
METHOD 2[tex]x=1\\\\f(1)=1^3+1^2=1+1=2\\\\g(1)=1^4+1^2+1=1+1+1=3\\\\f(1)-g(1)=2-3=-1[/tex]
Help me with this one please
Most Popular Last Names. In alphabetical order, the six most common last names in the United States in 2018 are Brown, Garcia, Johnson, Jones, Smith, and Williams (United States Census Bureau website). Assume that a sample of 50 individuals with one of these last names provided the following data:
Brown Williams Williams Williams Brown
Smith Johnson Williams Smith Miller
Johnson Williams William Johnson Jones
Miller Jones Jones Smith Smith
Miller Johnson Smith Jones Jones
Johnson Smith Brown Smith Johnson
Jones Smith Smith Williams Brown
Johnson Johnson William Smith Brown
Smith Miller Johnson Brown Johnson
Brown Jones Miller Smith Miller
Summarize the data by constructing the following:
A. Relative and percent frequency distributions
B. A bar chart
C. A pie chart
D. Based on these data, what are the three most common last names?
Answer:
Kindly check attached picture for barchart and piechart distribution
Step-by-step explanation:
Given the name data:
Name ____ freq ___R/Freq ____% frequency
Brown ____7 ______0.14 ______14
Smith ____ 12 -____ 0.24 ______24
Williams__ 8 ______0.16 ______ 16
Miller ____6 ______0.12 ______ 12
Jones ___ 7 ______ 0.14 ______ 14
Johnson _ 10 _____ 0.20 ______20
The three most popular last names are :
Smith, Johnson and Miller
Based on the information given in the bar chart, it should be noted that the most popular last names are Smith, Johnson, and Williams.
Solving the bar chart.It should be noted that the information given in the question is used in solving the bar chart and pie chart.
The name with the least number of people is Miller. On the other hand, the most popular last names are Smith, Johnson, and Williams.
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ILL GIVE BRAINLIEST! PLEASE ANSWER IF YOU SEE THIS!!! David has a container filled with quarters and nickels. He has 29 coins which add up to $5.85. How many quarters does he have?
what’s the y-intercept? i found the slope already.
Answer:
3.5
Step-by-step explanation:
3.5 is the y-intercept because the point is (0,3.5). This is where it intercepts with the y-axis.
Hope it helps!
Write a classification essay to describe two types of animal flight
One of the two basic types of animal locomotion: powered flight, actual flight, or gliding. Real wings are only found in most bird species, most insect orders, and bats.
What are the categories?A category listing is a list of various product categories, such as children's clothing, women's clothing, and men's clothing. Any form of a category can be simply created
Soaring and gravitational gliding are two distinct types of gliding flight.
In controlled gravitational gliding, a creature propels itself in a precise direction after delaying its descent and relying on the wind for horizontal motion (parachuting).
Adaptations for guided gliding are primarily made to increase glide ratio (the amount of horizontal distance covered per unit descent)
Therefore, powered flight or true flight are the two basic categories of animal locomotion.
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what is the area of this tile?
10in
8in
6in
Answer: I can give you the volume: 480. But to find the area I need more context to know which are the length and width.
What is this fraction shown above?
Answer:
1/3 because they have only colored on out of three, so the answer will be 1/3. Hope this helped!
Step-by-step explanation:
1/2x5/6, as a fraction, because my brain is not remembering rn
Answer:
5/12
Step-by-step explanation:
alex, Brittany, Charles, David, Eric and Felicia are six students sitting around a round table. David is to the right of Alex and Brittany is to the left of Charles. Felicia and David are opposite of each kther, as are Brittany and Eric. Who is sitting to the left of Felicia?
Answer:
Charles
Step-by-step explanation:
Use the drop down menus to complete the statement to match the information shown by the graph
Answer:
yes ikow
Step-by-step explanation:
you can do that if you want to buy
Answer:
where the graph?
Step-by-step explanation:
Simply
x + 50 × 10 = 150
Answer:
x + 50 × 10 = 150
x+500=150
x=150-500=-350
Step-by-step explanation:
solution,
here,
given,
x+50*10 = 150
or, x+500=150
or, x= 150 -500
therefore, x= -350
hope this helps u..
Is 15/16 bigger than less than or equal to 1/2
Answer:15/16 > 1/2
Step-by-step explanation:
Answer:
15/16 is greaterStep-by-step explanation:
Write -√-49 as an imaginary number using i.
Represent 4-3i on the graph
A set of equations is given below:
Equation M: y = 3x + 4
Equation P: y = 3x + 7
Which of the following options is true about the solution to the given set of equations? (4 points)
Question 5 options:
1)
No solution
2)
One solution
3)
Two solutions
4)
Infinite solutions
Answer:
Step-by-step explanation:
No solution. Lines M and P have the same slope but different y-intercepts., so they are parallel lines.
Parallel lines don’t intersect each other, so there is no solution.
2x(x - 3) + 7(x - 3)
Can I have an explanation on how it works factors
Answer:
Step-by-step explanation:
2x(x - 3) + 7(x - 3)
2x^2 - 6x + 7x - 21
reduce
2x^2 + x - 21
if this is equal to 0 then:
2x^2 + x - 21 = 0
factored:
(2x + 7)(x - 3) = 0
How that was done:
Divide the (2x^2) into (2x) and (x).
Divide the (-21) into (+7) and (-3). You choose these numbers so that their sum, when multiplied by (2x) and (-3), adds up to (+x).
f one Canadian dollar is equivalent to US$0.8150, how much do you need in
Canadian funds to buy US$800.00? (2 ma
Answer:
It will take $ 989.59 in Canadian funds to buy $ 800.
Step-by-step explanation:
If one Canadian dollar is equivalent to US $ 0.8150, in order to determine how much money is needed in Canadian funds to buy US $ 800.00 the following calculation must be performed:
0.8150 = 1
800 = X
(800 x 1) / 0.8150 = X
800 / 0.8150 = X
981.59 = X
Therefore, it will take $ 989.59 in Canadian funds to buy $ 800.
all vertical and horizontal cross-sections of any Cube are all the same size and shape what about vertical and horizontal cross-sections of a pyramid are they all the same size are they all the same shape discuss why or why not
Answer:
All the horizontal sections are the same shape like their base, but have different sizes.
All vertical sections through top are triangles, size are different.
The vertical sections not cut through top are 4 sided shapes, sizes are different.
Step-by-step explanation:
Sheila rolled a number cube numbered 1 through 6 and tossed a coin for heads, H, or tails, T.
Which list represents all the possible outcomes of rolling the numbercube and tossing the
coin?
Kamala has 2 liter of soup. he pours it into 4 bowls. each bowl gets an equal amount. how many millilitres of soup are in each bowl?
Answer:
500ml
Step-by-step explanation:
[tex]2000 \div 4 = 500[/tex]
Answer:
500 ml
Step-by-step explanation:
2 litres= 2000 millilitres divided into 4 bowls=2000÷4=500 millilitres
Triangle GHI is dilated to form new triangle JKL. If angle H is congruent to angle K, what other information would prove that the two triangles are similar by the capital AA similarities postulate?
Answer: Angle I is congruent to angle L
Step-by-step explanation:
Did da test
To prove ΔGHI and ΔJKL are similar following statements must be true,
i) angle I and angle L are congruent.
ii) angle G and angle J are congruent
iii) sides of the triangles are in proportion
⇒[tex]\frac{GH}{JK}= \frac{HI}{KL}= \frac{IG}{LJ}[/tex][tex]\frac{GH}{JK}= \frac{HI}{KL}= \frac{IG}{LJ}[/tex]
What are similar triangles?"Two or more triangles are similar if and only if the corresponding angle measures same and their corresponding side lengths are in proportion.."
What is dilation?"It is a geometric transformation where there is a change in the size of an object without changing its shape.""The size of the object changes on the basis scale factor."For given example,
ΔGHI is dilated to form new ΔJKL.
Also, angle H is congruent to angle K.
To prove ΔGHI and ΔJKL are similar.
i) angle I and angle L are congruent.
ii) angle G and angle J are congruent
iii) sides of the triangles are in proportion
⇒[tex]\frac{GH}{JK}= \frac{HI}{KL}= \frac{IG}{LJ}[/tex]
Therefore, to prove ΔGHI and ΔJKL are similar following statements must be true,
i) angle I and angle L are congruent.
ii) angle G and angle J are congruent
iii) sides of the triangles are in proportion
⇒[tex]\frac{GH}{JK}= \frac{HI}{KL}= \frac{IG}{LJ}[/tex]
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The diameter of a bike wheel is 27 inches. If the wheel makes 15 complete rotations,
how far does the bike travel?
Question 4 Given that P = 6 and a 2, which yields a quotient greater than -9? O A 3 B 3() c Зр (-2) (-p) (-3)
Answer:
I think is A or B I don't know
Answer:
a
Step-by-step explanation:
WILL GIVE BRAINLIEST TO CORRECT ANSWER!!!
The perimeter of a triangle is 63 in. The longest side is 12 in. longer than the medium side, and the medium side is 6 in. more than the shortest side. Find the length of each side of the triangle?
1. longest side is?
2. medium side is?
3. shortest side is?
Answer:
1.13
2.19
3.31
Step-by-step explanation:
Let the length of the shortest side be a.
a+a+6+a+6+12=63
3a=39
a=13
There were 70 wings at the Super Bowl party. I ate 14. What percent of the wings did I devour?
Answer: omg yes I ate like 10 wings last night. Your answer should be 20
Step-by-step explanation:
Rachel has 2/3 pound of snack mix. She eats 5/12 of the snack mix.
How much of the snack mix did Rachel eat?
Enter your answer in the box as a fraction in simplest form.
pound
Basic
Answer:
[tex]\frac{5}{18} pound of snack mix is eaten by Rachel.[/tex]
Step-by-step explanation:
Given
Total snack mix with Rachel [tex]\frac{2}{3}[/tex] Pounds
Snack mix eaten by Rachel [tex]= \frac{5}{12}[/tex] of the total snack mix
[tex]\frac{5}{12}[/tex] of the total snack mix accounts for
[tex]\frac{5}{12} * \frac{2}{3} = \frac{5}{18}[/tex] Pound