The Ridgeport school district collected data about class
size in the district. The table shows the class sizes for five
randomly selected kindergarten and seventh-grade
classes.
Number of students in randomly
selected class
Mean Mean absolute
deviation
19
1.6
Kindergarten 17, 17, 21, 20, 20
Seventh 28, 30, 30, 29, 28
grade
29
0.8
Based on these data, which statement is true?

Answers

Answer 1

the answer is....the average size of seventh-grade class is larger but varies less than that of a kidergarten class.

your welcome.


Related Questions

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Answers

Answer:

$2 is the answer ok no problem

6. If f(x) = -2r2 + x-5, what is f(3)?

Answers

Answer:

Step-by-step explanation:

PLEASE HELP AND HURRY!

The front of the home is being painted, not including the door the door measures 9ft by 2ft how many square feet will be needed

IGNORE THE WRITING

Answers

Answer:

ANSWER BELOW

Step-by-step explanation:

If the door is 9 x 2 ft (18 sq ft):

12 x 18 = 216 sq ft. (Front face including the door)

216 sq ft - 18 sq ft = 198 (Front face not including the roof or door)

For the roof, the formula is h b/2:

So if the height is 4 and the base is 18, the area of the roof is 36.

To find the total area, you must add the area of the front face and the roof (without the door).

198 + 36 = 234 sq ft

Have a wonderful day my friend!

Answer:

i only answered so you could give the other person brainliest.

Step-by-step explanation:

Yea.

Which equation shows y = (x − 4) 2 − 3 written in standard form?

Answers

Answer:

2x-y=11 is the standard form

Step-by-step explanation:

Which two expressions are
equivalent?
A. (7.x) - 12 and (x-7) - 12
B. (x + 4) = 10 and x + (4 = 10)
C. 30. (x - 4) and 30 · (4 - x)
D. 18 - (8 + x) and (8 + x - 18)
HELP!!!

Answers

Answer:

B

Step-by-step explanation:

I don't have an explanation but i know its right!!!

Calculate the Ek of a running back that has a mass of 80 kg and is running at a velocity of 8 m/s.

Answers

Answer:

2560 J

Step-by-step explanation:

mv^2/2

80(8)^2/2

2560 J

Carmen leaned a 13-foot ladder against a wall. If the base of the ladder is 4 feet from
the bottom of the wall, approximately how far up the wall does the ladder reach?

Answers

Answer:

13+4=17

Step-by-step explanation:

The required ladder reaches approximately 12.37 feet up the wall.

What is the Pythagorean theorem?

The Pythagorean theorem is a fundamental theorem in geometry that describes the relationship between the sides of a right triangle. It states that in a right triangle, the square of the length of the hypotenuse (the side opposite the right angle) is equal to the sum of the squares of the lengths of the other two sides. In algebraic terms, the Pythagorean theorem can be written as:

a² + b² = c²

where a and b are the lengths of the two legs of the right triangle, and c is the length of the hypotenuse.

Here,
We can use the Pythagorean theorem to solve this problem. Let's denote the distance from the bottom of the wall to where the ladder reaches the wall as h. Then we have,

h² + 4² = 13²

h² + 16 = 169

h² = 153

h ≈ 12.37

Therefore, the ladder reaches approximately 12.37 feet up the wall.

Learn more about the Pythagorean theorem here:

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PLEASEEEE HELPPPPP ME !! :)

Answers

The last one looks right

Answer:

ok ok, i think it's the last one

Step-by-step explanation:

DASA
Ther value for this data is 0.9701. This tells us that the graph shows a
Select a Value


some one plss help me

Answers

Answer:

Strong association between X and Y.

Step-by-step explanation:

I got the question right on the Algebra Nation

HERE for help me one more

Answers

Answer:

Im pretty sure its D.

Step-by-step explanation:

I think it would be option D. Is it considered the subsoil layer

The base of a solid oblique pyramid is an equilateral triangle with a base edge length of 14 units. What is BC, the height of the pyramid? 7 units 7StartRoot 2 EndRoot units 14 units 14StartRoot 2 EndRoot units

Answers

The length of line height BC according to the given parameter is; 142.

What is the length of the line BC?

It follows from the task content that the base edge length of the pyramid is 14 units.

On this note, it follows that length of the segment BC is given by Pythagoras theorem as;

BC² = 14² + 14²

BC = 14√2.

Read more on Pythagoras theorem;

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#SPJ2

Answer:

D. 14StartRoot 2 EndRoot units

Step-by-step explanation:

Edge

PLEASE HELP!!!!

Robert is baking desserts for a picnic. He needs to make at least 20 servings of dessert for the
event. For every batch of brownies he bakes, he will get 8 servings, and every pie will
yield 14 servings.

Answers

Answer:

x*8 + y*14 ≥ 20

Step-by-step explanation:

We know that:

A batch of brownies makes 8 servings.

A pie makes 14 servings.

He wants to make, at least, 20 servings.

Then if he makes x batches of brownies, he will get x times 8 servings.

If he makes y pies, he will get y times 14 servings.

Adding that, he will get a total of:

x*8 + y*14 servings

And because he wants to make at least 20 servings (he can make 20 or more)

The inequality will be:

x*8 + y*14 ≥ 20

Where the "≥" symbol means that the expression at the left is greater than or equal to the expression of the right

what is 3 2/4 as a whole number​

Answers

Answer:

4

Step-by-step explanation:

3 2/4 = 3.5

If rounded up,

3.5 ≈ 4 as a whole number

a box in the shape of a triangular prism is shown below. what is the surface area of the box.
a. 94in
b.96in
c.98in
d.100in

Answers

Answer:

I' m not sure if I'm right but i think the answer is

surface area

A≈85.29

what expression is equivalent to -3(6x+7)+4(7x+2)

Answers

Answer:

10x-13

Step-by-step explanation:

First Distribute:

-18x-21+28x+8

Then combine like terms:

10x-13

can someone help me with this

Answers

Answer:

13

Step-by-step explanation:

To solve the problem, you have to do A squared + B squared = C squared. So for your A and B it doesn't matter what order you put them in. We will do 12 sqaured + 5 squared = C squared. 12 squared is 144 and 5 squared is 25. By adding 144 and 25 together, it gives us 169. When we take the square root of 169, we get 13. 13 is the length of the hypotenuse.

The table shows information about the type and number of sandwiches ordered by 80 customers. If 120 customers order a sandwich, how many would you expect to order a club?​

Answers

Answer:

54

Step-by-step explanation:

80 Customers divide that by 2 =40

36÷2= 18

So if 120 Customers were to order then you would just add 18 to 36 and that would make it 54.

Basically just find how many clubs are bought in 40 customers then multiple it by 3

Which expression is equivalent to 0.06h +h+0.85h? ​

Answers

Answer:

1.91h

Step-by-step explanation:

0.06h+h+0.85h

1.91h

Answer:

The first one asdfghjkfruyctdf

Step-by-step explanation:

what is this ecspression in simplified form
(-7 square root 3)(11 square root 10)

Answers

Answer:

-77·√30

Step-by-step explanation:

(-7)·√3·11·√10  =  (-77)·√3·10  =  -77·√30

Find the x-intercept and y-intercept
from the following linear equation:
-2x + 4y = -16

Answers

Answer:

x-intercept: (8, 0)

y-intercept: (0, -4)

Step-by-step explanation:

the dimensions of a rectangle are given in terms of X as shown below the perimeter of the rectangle is 7 3/5 units. what is the value of x​

Answers

Answer:

it is 8.65

Step-by-step explanation:

it just is but if it is wrong sorry been a while since i done this

Answer:

x=1.5

Step-by-step explanation:

Write an equation of the line that passes through point P and is parallel to the line with the given equation: P(2,5) Y-1=4x​

Answers

Given:

The equation of a line is:

[tex]y-1=4x[/tex]

A line parallel to the above line passes through the point P(2,5).

To find:

The equation of the parallel line.

Solution:

The slope intercept form of a line is:

[tex]y=mx+b[/tex]         ...(i)

Where, m is the slope and b is the y-intercept.

The given equation is:

[tex]y-1=4x[/tex]

It can be rewritten as

[tex]y=4x+1[/tex]        ...(ii)

On comparing (i) and (ii), we get

[tex]m=4[/tex]

It means the slope of the given line is 4.

We know that the slopes of two perpendicular lines are equal. So, the slope of the required parallel line is also 4.

The parallel line passes through the point P(2,5) with slope 4, thus the equation of the parallel line is

[tex]y-y_1=m(x-x_1)[/tex]

[tex]y-5=4(x-2)[/tex]

[tex]y-5=4x-8[/tex]

[tex]y=4x-8+5[/tex]

[tex]y=4x-3[/tex]

Therefore, the equation of the required parallel line is [tex]y=4x-3[/tex].

A. 34
B. 55
C. 65
D. 145

Answers

answer is A, because of the alternate interior angles theorem

A quarter horse often excels at running races of 1/4 mile or less .how many feet is that

Answers

Answer:

1320ft

Step-by-step explanation:

1 mile is equal to 5280 feet, divide 5280/4

this will result in a quarter mile, being 1320ft. So for the question "1/4 mile or less" the Answer is the horse excels in 1320ft mile races

In a tennis club the ratio number of junior members : number of senior members is
7 : 10. There are 18 more senior members than junior members. Find the total amount of club members.

Answers

Answer:

35 members

Step-by-step explanation:

In a tennis club the ratio number of junior members : number of senior members is 7 : 10

From the above ratio

Number of junior member = 7

Number of senior members = 10

There are 18 more senior members than junior members.

S = 18 + j

10 + 18 = 28 senior members

Hence,

Total number of members = 28 senior members + 7 junior members

= 35 members

Ravi is running against two other candidates for student council president. All of the 750 students in Ravi's school will vote for student council president. How can Ravi generate a representative sample that will help him determine whether he will win the election?



(7th grade 8-1)

Answers

Answer:

50 students from each grade

Step-by-step explanation:

If we get the similar amount of people from each and every grade so this would represent the percentage occur from each grade this determine the number of people who vote per grade and represent that how much would the vote for student comes

Also 50 is easily divisible by 750

Therefore the above represent the answer

You and your friend decide to go to Red Robin to eat. You are both part of the rewards club and receive coupons in the mail. You have a coupon a coupon for 10% off the total bill. Your friend has a coupon for $5 off the total bill. Which coupon should you use to save the most money if the total bill was $29.90? *
A. the $5 off coupon
B. the 10% off coupon
C. either one
D. cannot be determined ​

Answers

Answer:

A. the $5 off coupon

Step-by-step explanation:

10% off would only be 2.99 off the bill making it 26.91 but the $5 would take off more

The coupon I would use to save the most amount of money on the total bill is my friend's coupon worth $5.

Which coupon should I use?

Coupons reduce the price of an item. An item becomes cheaper after a coupon has been used. In order to determine the better coupon, calculate the price after each coupon has been used.

Coupon 1 : 10% x 29.9 = $3

Coupon 2 : 29.90 - $5 = $24.90

To learn more about how to calculate discounts, please check: https://brainly.com/question/26061308

Find the distance between (-22,15) and (30, -25).

Answers

Answer:

65.60

Step-by-step explanation:

Formula :

Distance between two points = √(xB−xA)2+(yB−yA)2(xB-xA)2+(yB-yA)2

Solution :

Distance between two points = √(30−−22)2+(−25−15)2(30--22)2+(-25-15)2

= √522+(−40)2522+(-40)2

= √2704+16002704+1600

= √43044304 = 65.6049

Find x, the missing side length in the right trienagle.
12
X
20

Answer

Answers

Answer:

x=16

Step-by-step explanation:

20^2-12^2=256

sqrt256=16

given y²+5y-6= (y+p) (y+q), find the values of p and q. ​

Answers

Answer:

(y+6)(y-1)

Step-by-step explanation:

literally factorising.

y^2 x -6 = -6y^2

u need two numbers that multiply to make -6 and add them together to make +5 which is +6 and -1.

Answer:

p = 6, q = - 1 , or p = - 1, q = 6

Step-by-step explanation:

Factorise the quadratic expression on the left side

y² + 5y - 6

Consider the factors of the constant term (- 6) which sum to give the coefficient of the y- term (+ 5)

The factors are + 6 and - 1 , since

6 × - 1 = - 6 and 6 - 1 = + 5 , then

y² + 5y - 6

= (y + 6)(y - 1) = (y - 1)(y + 6)

Compare to (y + p)(y + q) , then

p = 6, q = - 1 or p = - 1, q = 6

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