I need help with questions 13-16 PLEASE

2 answers:

4 0

Answer:
13. You Should find r from circumstance which
C= 2 Pi r
Then r = 5.5 feet
A= pi r^2 = 94.985 feet^2 ~ 95 f^2

16. Same idea in 13

Aliun [14]3 years ago

3 0

Answer:

the answer is 3

Step-by-step explanation:

because 16-13 leaves you with 3

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Please answer quickly, it’s inequalities and it’s very confusing.

disa [49]

Answer:

Step-by-step explanation:

It is A, because it tells you the equation of

-5x + 8 ≥ -7

Because the key on the right tells you that shaded squares are negative and white ones are positive.

You can then subtract both sides by 8 to isolate the -5x and the equation becomes:

-5x ≥ -7 - 8

Which simplifies to

-5x ≥ -15

which you can now divide both sides by -5 to get

x ≥ 3

BUT WAIT

the general rule is that when you divide a variable (in this case x) by a negative number, you have to flip the inequality sign

so ≥

should become ≤

so the equation is x ≤ 3

7 0

3 years ago

How to substitute 3x+3y=-3 and y=5x-1?

schepotkina [342]

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To check fill in the answer to 3x + 3y = -3.
3(0) + 3(-1) = -3
0 + (-3) = -3
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7 0

4 years ago

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den301095 [7]

Answer:

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