If 9−2 = x, what is the value of x ?
A. 1
B. 2
C. 4
D. 6
Answer:C
If 9−2 = x, what is the value of x ?
A. 1 B. 2 C. 4 D. 6
Explanation: C Negative exponents mean to take the reciprocal and apply the positive exponent. So 9−2 = . Now find what power of equals . Because 34 = 81, , and x must be 4. The correct answer is (C).