3 years ago

Evaluate 7^-2 A. -49 B. -1/49 C.1/49 D. -14

Mathematics

2 answers:

Marat540 [252]3 years ago

8 0

Answer:

C. 1/49

Step-by-step explanation:

When there is a negative sign located inside the power, you must eliminate it. To do so, put the whole expression under 1, and then simplify from there:

7^-2 = 1/(7^2)

Simplify: 7^2 = 7 x 7 = 49

1/49 is your answer.

aleksandr82 [10.1K]3 years ago

4 0

C . 1/49 because you need to multiply and square then minus

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