3 years ago

Solve for a. 5a2=320

2 answers:

wel3 years ago

8 0

The answer is 32 because you have to the inverse operation so you divide 320 by 2 you get 160. Then you divide 160 by 5a then you have a=32. To check you substitute: 5(32)2=320.

choli [55]3 years ago

6 0

5a^2 = 320
a^2 = 320 / 5 = 64
a = sqrt 64

a = 8, -8

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