Question

Which expression is equivalent to 3^-2 times 5^-2

a. 1/15^2
b. 1/15^-2
c. 15^4
d. 15^-4

Answer 1

The answer would be A)

Explanation:

3^-2 = 1/9

5^-2 = 1/25

1/9 * 1/25 = 1/225

15^2 = 225

meaning,

3^-2 * 5^-2 = 1/15^2

Hope this helps yo! :)