Step-4

Title: Use law of exponent stem:[a^-n/b^-m = b^m/a^n]

Grade: 6-a Lesson: S3-L4

Explanation: Hello Students, time to practice and review the steps for the problem.

Lesson Steps

Step Type Explanation Answer

1

Problem

Simplify the value

\$ 9^(-3)/3^(-6) \$

2

Formula:

Use law of exponent

\$a^-n/b^-m = b^m/a^n\$

3

Step

Calculating exponent

\$ (3 \times 3 \times 3 \times 3 \times 3 \times 3)/(9 \times 9 \times 9) \$

4

Step

calculating the exponent

\$ => \cancel729^1/\cancel729^1 \$

5

Step

calculating the exponent

\$=> 1\$

6

Answer

D


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