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Lelu [443]
3 years ago
5

-4(7a+5) = -160 Show All Work!

Mathematics
1 answer:
Fynjy0 [20]3 years ago
7 0

Answer:

a=-20

Step-by-step explanation:

-4(7a+5)=-160

7a+(-20)=-160 Multiply -4 and 5

7a=-140 Subtract -20 from -160

a=-20 Divide 7 by -140

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Answer:

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Step-by-step explanation:

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The standard deviation is

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The 90% CI is

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