# Mathematics Questions and Answers – Powers with Negative Exponents

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This set of Mathematics Multiple Choice Questions & Answers (MCQs) focuses on “Powers with Negative Exponents”.

1. What is the multiplicative inverse of 10-3?
a) 100
b) -100
c) $$\frac{1}{1000}$$
d) 1000

Explanation: Multiplicative inverse of an = $$\frac{1}{a^n}$$
⇒ Multiplicative inverse of 10-3 = 103 = 1000.

2. What is the value of 10-6?
a) -0.000010
b) -0.0000010
c) 0.000010
d) 0.0000010

Explanation: a-m = $$\frac{1}{a^m}$$
⇒ 10-6 = 0.000010.

3. Find the value of 3-2.
a) $$\frac{1}{9}$$
b) –$$\frac{1}{9}$$
c) 8
d) $$\frac{1}{8}$$

Explanation: a-m = $$\frac{1}{a^m}$$
⇒ 3-2 = $$\frac{1}{3^2} = \frac{1}{9}$$.
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4. Find the unknown value: $$\frac{1}{729}$$ = 9.
a) -4
b) -3
c) 3
d) 4

Explanation: a-m = $$\frac{1}{a^m}$$
⇒ 9-3 = $$\frac{1}{9^3} = \frac{1}{729}$$.

Sanfoundry Global Education & Learning Series – Mathematics – Class 8.

To practice all areas of Mathematics, here is complete set of 1000+ Multiple Choice Questions and Answers. 