SAT Math Question of the Day

Math Category: Exponents Level 1:

Q: What is 7-2?

  1. 1/49
  2. 1/14
  3. 1/9
  4. 1/5
  5. 1/2

UNANSWERED.

The correct answer is A.

A: The answer is 1/49. When you see a negative exponent like x-a, this is the same as 1/xa.
So 7-2 = 1/72 = 1/49.