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Karolina [17]
4 years ago
7

A rectangular floor space in a community center is 40 ft long and 32 ft wide. A volunteer is setting up chairs on the floor spac

e. Each chair needs an area of approximately 4 ft by 5 ft.
Which estimate best approximates the number of chairs that can be set up on the floor space?


A. 20

B. 60

C. 260

D. 320
Mathematics
1 answer:
pav-90 [236]4 years ago
6 0
It is B because 40x32=1280 and 5x4=20 then divide 1280 by 20 and you get 64 but you can’t have 64 so you would need to only have 60 so the answer is B
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Plz explain your answer.
klio [65]
Number six question is answers “Mid point”
7 0
3 years ago
Thirty three different video games showing violence were observed. The duration times of violence ​(in seconds) were recorded. W
AlladinOne [14]

Answer:

The "df" stands for "degrees of freedom", and represents the number of independent observations in a set of data.

Its value in this case is df=32.

Step-by-step explanation:

The sample is of size n=33.

As we do not know the population's standard deviation, we use as estimate the sample's standard deviation. Because of this, we use the t-statistic in place of the z-value.

The "df" stands for "degrees of freedom", and represents the number of independent observations in a set of data (the data in this case is the sample of 33 video games).

In one-sample tests, the degrees of freedom are calculated as:

df=N-1=33-1=32  

6 0
4 years ago
Please help Giving 20 points
harkovskaia [24]

Answer:

164 sq. meters

Step-by-step explanation:

So to make it easier, you can break the shape up in a smaller shape. So now it'll look like 2 big rectangles on each side with a small rectangle in the middle. Now you can find the area.

For the big rectangle on the left:

5 × 15 = 75

For the big rectangle on the right:

5 × 15 = 75

For the small rectangle in the middle:

It doesn't say what the length is but if you subtract 8 from 15, that's what the length will be.

15 - 8 = 7

L = 7

7 × 2 = 14

Now add all the areas up.

75 + 75 + 14 = 164

3 0
3 years ago
A parallelogram is a four-sided figure
stellarik [79]
The sum of the parallelogram is 22 because I did the test
4 0
3 years ago
Multiply the polynomials.<br><br> (x + 4)(x^3 + 5x^2 + 19x) = _______
solmaris [256]
Distribute this one
so lets start with the x variable
x*x^3
x*5x^2
x*19x
then lets go to 4
4*x^3
4*5x^2
4*19x
so the WHOLE answer is
x^4+4x^3+3x^3+20x^2+19x^2+76x
5 0
3 years ago
Read 2 more answers
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