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3 years ago

5

There are 30 seventh grade students in the cafeteria. In a representative sample of 25 students, there are 14 girls. Estimate th

e number of girls in the cafeteria.

1 answer:

Basile [38]3 years ago

7 0

Answer:

17 i think

Step-by-step explanation:

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A plane cuts a pyramid as shown in the diagram. What is the shape of the cross section

Andreas93 [3]

A is your answer! Because of how many sides it has.

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3 years ago

Jacob attempted the third problem above but when checking his work realized he made a mistake. Identify what Jacob’s mistake was

Sloan [31]

Answer:

When solving, Jacob did not distribute properly.

Explanation:

Let's talk about 5(x + 2). The correct distribution would be 5x + 10. Jacob distributed 5 into x correctly and got 5x, however he did not distribute the 5 into 2 properly. It should have been 10, however it stayed as 2.

Jacob should be more careful when distributing, and make sure to distribute into EVERY term inside the parentheses.

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3 years ago

Please answer this question

dlinn [17]

Graph 1: Domain = [-6,6]

Graph 1: Range = {-5,-1,0}

Graph 2: Domain = (-4, infinity)

Graph 2: Range = {-4} or [-2, infinity)

Graph 3: Domain = (-infinity, infinity)

Graph 3: Range = [-5, infinity)

Graph 4: Domain = [-5.5, infinity)

Graph 4: Range = (-infinity, infinity)

7 0

2 years ago

Read 2 more answers

Archy [21]

Answer:

16 books fit and theres .8 inches left

Step-by-step explanation:

16x2.2 = 35.2

36 - 35.2 + 0.8

7 0

3 years ago

Read 2 more answers

Pleae help thanks a bunch

zloy xaker [14]

Hello!

You use the Pythagorean theorem to solve this

$a^{2} + b^{2} = c^{2}$

Put in the values it tells you to

$a^{2} + 4.4^{2} = 5.5^{2}$

Square the numbers

$a^{2} + 19.36 = 30.25$

Subtract 19.36 from both sides

$a^{2} = 10.89$

Take the square root of both sides

a = 3.3

The answer is 3.3

Hope this helps!

8 0

3 years ago