2 years ago

What is the surface area of each shape?

Mathematics

1 answer:

tino4ka555 [31]2 years ago

5 0

Answer:

Step-by-step explanation:

Because I tried it and got this answer

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5(2+c)=45+5c no solution

kolbaska11 [484]

Answer:

Step-by-step explanation:

You have to start out with the distributive property 5 times 2 times c is 10+5c; now you have to subtract 5c on both sides in the upside down T chart, now its 10=45+c and your answer will be c=4.5.

8 0

3 years ago

Mikey has $100 to spend on books. She wants to buy at least 14 books. Hardback books cost $15.00 and paperback books cost $7.00.

fomenos

A. x+y<100
15x+7y>14 is the right answer

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2 years ago

If three dozen cookies cost $9, what is the cost per cookie?

e-lub [12.9K]

i think
25 per cents

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2 years ago

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Answer the photo below thanks

Nadya [2.5K]

Answer:

Step-by-step explanation:

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2 years ago

What is the margin of error for a sample statistic for a population with a standard deviation of 7.75?

3241004551 [841]

Answer:

Margin of Error = 1.96 $\times$ 7.75 = 15.19

Step-by-step explanation:

i) Margin of Error of a population with a standard deviation of 7.75?

ii) Let us assume a two tailed test with a 95% confidence interval

iii) $Z_{\frac{\alpha }{2} } = Z_{\frac{\ 0.05 }{2} } = Z_{0.025} = 1.96$

iv) therefore Margin of Error = 1.96 $\times$ 7.75 = 15.19

6 0

3 years ago