Which expression is equivalent to 7^3x7^-5A. 7^2B. 7^7C. 1/7^2D. 1/7^7
1 answer:
Answer:
C: 1 / 7^2
Step-by-step explanation:
Here there are two exponentials with the same base (7).
To find the product, write the base (7) again, and form the exponent by combining the two exponents:
7^(3 - 5) = 7^(-2), or 1/49. None of the given possible answers match this. Answer C is closest: 1 / 7^2.
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Tip: use the variables/numbers in the problem to form an equation. Then, simplify.
