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3 years ago

I need help with this equation -17 = -7c + 4

Mathematics

2 answers:

dimulka [17.4K]3 years ago

6 0

Answer:

C = 3

Step-by-step explanation:

KonstantinChe [14]3 years ago

3 0

Answer: c = 3

Step-by-step explanation:

Hey there! I will give the following steps, if you have any questions feel free to ask me in the comments below.

Step 1: Subtract 4 from both sides.

-17 - 4 = -7c

Step 2: Simplify -17 - 4 to -21.

-21 = 7c

Step 3: Divide both sides by -7.

$\frac{-21}{-7}$ = c

Step 4: Two negatives make a positive.

$\frac{21}{7}$ = c

Step 5: Simplify $\frac{21}{7}$ to 3.

3 = c

Step 6: Switch sides.

c = 3

~I hope I helped you! :)~

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Answer:

Step-by-step explanation:

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(side/2)² + height² =( length of the pyramid face)²

(28/2)² + 28² = 196 + 784 = 980 = (face length)²

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Step-by-step explanation:

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Sample size : n= 52 , which is a large sample (n>30), so we use z-test.

By using z-value table,

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