(08.02 MC)

The two dot plots below show the heights of some sixth graders and some seventh graders:

Two dot plots are shown one below the other. The title for the top dot plot is Sixth Graders and the title for the bottom plot is Seventh Graders. Below the line for each dot plot is written Height followed by inches in parentheses. There are markings from 52 to 57 on the top line and the bottom line at intervals of one. For the top line there are 2 dots above the first mark, 1 dot above the second mark, 1 dot above the third mark and 2 dots above the fourth mark. For the bottom line, there are 2 dots for the fifth mark, there are 4 dots above the sixth mark.

The mean absolute deviation (MAD) for the first set of data is 1.2 and the MAD for the second set of data is 0.4. Approximately how many times the variability in the heights of the seventh graders is the variability in the heights of the sixth graders? (Round all values to the tenths place.)

3.2
3.0
1.5
0.8

Answers

Answer 1

Answer:

b

Step-by-step explanation:


Related Questions

percents and numbers​

Answers

Answer:

16

Step-by-step explanation:

An item has a listed price of $70 If the sales tax rate is 7% how much is the sales tax (in dollars)?

Answers

Answer:

$74.9

Step-by-step explanation:

A tax of 7 percent was added to the product to make it equal to $74.9.

I hope this helps! ^^

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What is the theoretical probability that two coins flipped together will both land on tails?

What is the theoretical probability that two coins flipped together will both land on heads?

What is the theoretical probability that two coins flipped together will land on heads and tails?

Answers

Answer:

1.We say a coin is fair if it has probability 1/2 of landing heads up and probability 1/2 of landing tails up. What is the probability that if we flip two fair coins, both will land heads up? It seems plausible that each should be equally likely. If so, each has probability of 1/4.

2.The probability of getting heads on the toss of a coin is 0.5. If we consider all possible outcomes of the toss of two coins as shown, there is only one outcome of the four in which both coins have come up heads, so the probability of getting heads on both coins is 0.25.

3.his states that the probability of the occurrence of two mutually exclusive events is the sum of their individual probabilities. As you can see from the picture, the probability of getting one head and one tail on the toss of two coins is 0

Step-by-step explanation:

value of x!?!?! I WILL MARK BRAINLIEST TO FIRST TO ANSWER!!!! THXX

Answers

tanx = opp/adj
tan39=x/32
(32)(tan39)= 25.9 or approx 26
x = 25.9 or approx 26

Estimate the quotient. 485 ÷ 68

Answers

Answer:

485÷68=7.13=7

Step-by-step explanation:

fisrt you must divided 485÷68=7.13=7

Breyelle is planning on purchasing a new sports-utility vehicle. The list price of the one she is most interested in buying is $32,000. This vehicle is expected to depreciate in value by 8.5% per year.

Which model could be used to calculate the daily depreciation for this vehicle?

V(t)=32,000(0.0233)^t

V(t)=32,000(0.9150)^t

V(t)=32,000(0.9767)t^t

V(t)=32,000(0.9998)^t

Answers

Answer:

V(t)=32,000(0.9767)t^t

Step-by-step explanation:

The correct model which could be used to calculate the daily depreciation for this vehicle is,

⇒ V (n) = 32,000 (0.915)ⁿ

What is mean by Subtraction?

Subtraction in mathematics means that is taking something away from a group or number of objects. When you subtract, what is left in the group becomes less.

We have to given that;

Breyelle is planning on purchasing a new sports-utility vehicle.

Here, The list price of the one she is most interested in buying is $32,000.

And, This vehicle is expected to depreciate in value by 8.5% per year.

Hence, the daily depreciation for this vehicle is,

V (n) = 32,000 (1 - 8.5%)ⁿ

V (n) = 32,000 (1 - 0.085)ⁿ

V (n) = 32,000 (0.915)ⁿ

Thus, The correct model which could be used to calculate the daily depreciation for this vehicle is,

⇒ V (n) = 32,000 (0.915)ⁿ

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The sum of Micah’s age and Aria’s age is 29. Aria is 5 years older than twice Micah’s age. Let x represent Micah’s age. The equation that can be used to find Micah’s age is
x + (x + 5) = 29.
x + (2 x + 5) = 29.
x + (2 x) = 29.
x + (2 x minus 5) = 29.

Answers

Answer:

x + (2x + 5) = 29

Step-by-step explanation:

Mica's age: x

Aria's age: 2x + 5

Sum of ages: x + (2x + 5)

Given sum of ages: 29

Equation: x + (2x + 5) = 29

Answer: x + (2x + 5) = 29

Which equation could be uses to solve for the
value of x?

Answers

Answer:107 + 2x-5+x=180

Step-by-step explanation:

Holaaa, Esta es mi operación: 7-7: 1 x 1 + 3)por fi necesito una ayudis en esto

Answers

Asw= 2
7:1=7 x1=7
7-7=0+3=3
The answer is +3

Evaluate 10b + 3c, if b=3 and c = 11.

Answers

Answer:

63

Step-by-step explanation:

10 × 3 = 30

3× 11 = 33

30 + 33 = 63

can someone please help me with this? it would be so nice! and thank you!

Answers

1. Greatest common factor (GCF) would be 15, so the answer would be C, 15(x+2)

2. You are able to distribute -5, and you get -5x when it goes into x, and you get positive 10 because it is a negative times a negative. So the answer would be B, -5x + 10

3. On this type of problem, when there is a negative in the middle, you MUST turn it positive. This means you distribute the negative, and everything on the right of the minus sign changes to negative or positive. So it would change to -
(8x-6)+(x-4)
When you add, you get 9x-10, which is C.

4. Simply just add these two, which is what we got to on the last problem, and you get 20x-6, which is choice A.

5. For this, you substitute the numbers in the equation. So it would be -
2(5)-4(-1)
This would equal 14, which is A.

6. You substitute 4 for x, so it would be -
4^2 + 5
4 • 4 + 5
16 + 5
21, Choice B

7. When you combine like terms here, the 3y’s cancel out because they equal each other, so the answer would just be 19, which is A.

The answers for the given Expression are;

1) 15(x+2)

2) -5x + 10

3) 9x - 10

4) 20x - 6

5) 14

6) 21

7) 19

What is an Expression?

Numbers, symbols and operators (such as and times) grouped together that show the value of something.

Given are the Expressions to solve;

1) 15x + 30

GCF for this Expression is 15 therefore

15x + 30 = 15(x+2)

2) -5(x - 2) = -5 + 10

3) (8x - 6) - (-x + 4) = 8x - 6 + x - 4 = 9x - 10

4) (11x - 2) + (9x - 4) = 20x - 6

5) 2x - 4y when x = 5 and y = -1

2x - 4y = 2*5 - 4*(-1) = 14

6) x² + 5 when x = 4

4² +5 = 16 + 5 = 21

7) -3y + 12 + 3y + 7 = 19

Hence, The Answers are :

1) 15(x+2)

2) -5x + 10

3) 9x - 10

4) 20x - 6

5) 14

6) 21

7) 19

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Idek what this is! help!!

Answers

It’s 3 . You multiply 2 three times to get 8

A right triangle is labeled with the hypotenuse 12m and an acute angle 23 degree
. Which of the following equations could be used to find the side length of one of the legs of the triangle.
A) sin. 23=12/x
B)cos =12/x
c)sin 23 =x/12
D) tan 23=x/12

Answers

Answer:

sin23= x/12

sin23(12)=x

0.391(12)=x

x=4.7 or 5

a cylinder has a base diameter of 6 feet and a height of 2 feet . what is its volume in cubic feet, to the nearest tenths place?

Answers

h=2ft
d=6 ft
r=d/2
r=6/2=3ft
V= π•r^2•h
V=3.14•3^2•2
V=3.14•9•2
V=56.52 ft3
V~56.5ft3

The Volume of cylinder in cubic unit is 56.52 feet³.

What is Volume?

'Volume' is a mathematical quantity that displays the amount of three-dimensional space occupied by an item or a closed surface in mathematics.

A volume is just the amount of space taken up by any three-dimensional solid. A cube, a cuboid, a cone, a cylinder, or a sphere are examples of solids.

We have,

Diameter = 6 feet

Radius = 6/2 = 3 feet

Height = 2 feet

So, the Volume of Cylinder

= πr²h

= 3.14 (3)² (2)

= 3.14(9) 2

= 3.14 (18)

= 56.52 feet³

Learn more about Volume here:

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Malik is saving for a Playstation 5. He already has $120 and he is saving $20 per week. Is this scenario linear or nonlinear?

Answers

Answer:

the scenario is nonlinear

Step-by-step explanation:

3x3x3x3x7x8x9
megan hughes answer only

Answers

Answer:

40824

Step-by-step explanation:

hi im here

8TH GRADE MATH PLEASE HELL

Answers

Answer:

Step-by-step explanation:

x+21=133 (ext.∠)

x=112

Answer:

i cant really see it ?

Step-by-step explanation:

Simplify:
6(2x - 3) - (5x + 7)
thank you!!!

Answers

Answer:

7x-10

ye that's it

Answer:

7x−25 is the awnser !! Your welvome

Can someone please tell me the answers but also explain how to do it? Thank you

Answers

Answer:

8: 90 degrees, 9: 165 degrees, 6: 81 degrees, 7: angles in the same segment are equal

Step-by-step explanation:

For question 8:

Notice how the line AB just barely touches the edge of the circle. We call this kind of line a tangent. The point O is at the center of the circle so the line OB is a radius. The angle between a tangent and a radius is always 90 degrees, so ABO is 90 degrees.

For question 9:

By the exact same logic as 8, ACO is also 90 degrees. The sum of interior angles in a 4 sided shape (a quadrilateral) is always 360 degrees. This means that 15 + 90 + 90 + x = 360 = 195 + x so x = 360 - 195 = 165

For question 6/7:

We use the theorem that the angles in the same segment are equal. This means that a is 81 degrees.

What is the elimination method in math?

Answers

Answer:

In the elimination method you either add or subtract the equations to get an equation in one variable. When the coefficients of one variable are opposites you add the equations to eliminate a variable and when the coefficients of one variable are equal you subtract the equations to eliminate a variable.

Hope this helps!

If you need a more in-depth answer, don't hesitate to ask!

Answer:

elimantion method in elimantion method, the coffecients of the given equations are mulitiplied by a constant to make the coffiecents of one variable  in the same in both equations. Finally any one variable remains at the end, which can then be easily solved.

Step-by-step explanation:

Mr. Bernard needs to order boxes for his 18-inch diameter "Super Pizza."

What is the approximate circumference of the Super Pizza? Use 3.14 for π. Show your work.



What is the approximate area of the Super Pizza? Use 3.14 for π. Show your work.

Please help and hurry!! Ty!!

Answers

Answer:

a) Circumference of the circle = 56.52 in

b) Area of the circle = 254.34 in²

Step-by-step explanation:

Mr. Bernard needs to order boxes for his 18-inch diameter "Super Pizza."

Note that:

Pizza is Circular in shape

a) What is the approximate circumference of the Super Pizza? Use 3.14 for π. Show your work.

The formula for the circumference of a circle when given that diameter = πD

Where D = Diameter of the circle = 18 in

π = 3.14

Hence,

Circumference of the circle = 3.14 × 18 in

= 56.52 in

b) What is the approximate area of the Super Pizza? Use 3.14 for π. Show your work.

The formula for the area of a circle = πr²

Radius = Diameter/2

Diameter = 18 in

Radius = 18 in/2 = 9 in

The area of the circle = 3.14 × 9²

= 254.34 in²

Pa sagot po pleaseee

Answers

Answer:

Step-by-step explanation:

haga la pregunta de nuevo, pero escríbala

Answer:

1. let x is the width

then

length = 2x

premiter = 2*( 2x+x) =  96

2. 3x = 24

3. let number is x

2/3 * x = 72

4. let two numbers are x, x+1

x + x +1 = 29

5.let number is x

then

4x+8 = 54

Step-by-step explanation:

help asap please !! math

Answers

Answer:

11x40=51x

Step-by-step explanation:

you just add it

Sarah rolls a fair dice 156 times how many times was Sara expect to roll a number greater than two

Answers

Answer:

130 times

Step-by-step explanation:

156÷6=26

156-26=130

4.55 rounded to the nearest hundredth

Answers

Answer:

its still 4.55

Step-by-step explanation:

I dont understand

Answer:

it will still be 4.55

Step-by-step explanation:

did you mean 4.55 rounded to the nearest tenth because then that would be 4.6

hope this helps :) have a nice day !!

What is 1/2 times 3/4

Answers

Answer:

3/8

Step-by-step explanation:

Answer:

3/8

Step-by-step explanation:

Help me pleaseeeeee​

Answers

Answer:

no

Step-by-step explanation:

it would say 5>8

find the volume of this cyilindar

Answers

Answer:

Formula =

[tex]\pi \: {r}^{2} h[/tex]

But there is no picture !!

Answer:

Formulas for calculating the volume of the cylinder:

1) The volume of the cylinder is equal to the production of the base area to a height. 2) The volume of the cylinder is equal to the pi (3.1415) per square of the base radius to height.

9x-5x=24

x=

I need a answer ASP!!!

Answers

9x-5x=24 :x=5

steps

9x-5x=24

add similar elements 9x-5x=4x

dive both sides by 4

4x/4=24/4

simplify

x=6

how many hours helppp

Answers

Answer

17.27 hours

Step-by-step explanation:

lemme know if it's good :)

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