Which expression is equivalent to 1/49 a. 7^-1 7^-1 b. 7^8 * 7^-6 c. 7^-57^3 d. 7^7 7^-9 e. 7^-2 * 7^4

Question

Mathematics

Isabelle Swanson

19 July, 06:58

Which expression is equivalent to 1/49 a. 7^-1 7^-1 b. 7^8 * 7^-6 c. 7^-57^3 d. 7^7 7^-9 e. 7^-2 * 7^4

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Answers (1)

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Caroline Grant · Answer 1

If you would like to find the equivalent expression to 1/49, you can do this using the following steps:

1/49 = 1 / (7^2) = 7^ (-2) = 7^ (-5) * 7^3 = 7^ (-5+3) = 7^ (-2) = 7^7 * 7^ (-9) = 7^ (7-9) = 7^ (-2)

The correct result would be: c. 7^-5*7^3 and d. 7^7*7^-9.

Which expression is equivalent to 1/49 a. 7^-1 7^-1 b. 7^8 * 7^-6 c. 7^-5*7^3 d. 7^7 * 7^-9 e. 7^-2 * 7^4

Which expression is equivalent to 1/49 a. 7^-1 7^-1 b. 7^8 * 7^-6 c. 7^-57^3 d. 7^7 7^-9 e. 7^-2 * 7^4