Question

If b = 3, then b-² is equivalent to____
9
1/9
-9
-6​

Answer 1

Answer:1/9

Step-by-step explanation: If a number has a negative exponent, you invert it. For example:

b^-2 ( b raised to the -2 power) becomes 1/b^2 ( 1 over b squared)

3^-2 ( 3 raised to the -2 power) becomes 1/ 3^2 ( 1 over 3 squared)

Therefor, 3^-2 = 1/3x3 or 1/9