What expression is not equivalent to 1/343

A. 7-1 x 7-2

B. 77 x 7-10

C. 7-2 x 7-5

D. 7-5 x 72

(All expressions have an Integer either negative or positive u just can't type it correctly here and B and D or not 77 or 72 it's 7 and positive 7 and D is 7 positive 2

Question

April

Mathematics

15 November, 20:37

What expression is not equivalent to 1/343

A. 7-1 x 7-2

B. 77 x 7-10

C. 7-2 x 7-5

D. 7-5 x 72

(All expressions have an Integer either negative or positive u just can't type it correctly here and B and D or not 77 or 72 it's 7 and positive 7 and D is 7 positive 2

+3

Answers (1)

Know the Answer?

Amara Pearson · Answer 1

1 / 343

This is just equal to

1 / 7^3 = 7^-3

A. 7^-1 * 7^-2 = 7^ (-1 + - 2) = 7^-3

B. 7^7 * 7^-10 = 7^ (7 + - 10) = 7^-3

C. 7^-2 * 7^-5 = 7^ (-2 + - 5) = 7^-7

D. 7^-5 * 7^2 = 7^ (-5 + 2) = 7^-3

So the correct answer is letter C. 7^-2 * 7^-5

What expression is not equivalent to 1/343A. 7-1 x 7-2B. 77 x 7-10C. 7-2 x 7-5D. 7-5 x 72(All expressions have an Integer either negative or positive u just can't type it correctly here and B and D or not 77 or 72 it's 7 and positive 7 and D is 7 positive 2

What expression is not equivalent to 1/343

A. 7-1 x 7-2

B. 77 x 7-10

C. 7-2 x 7-5

D. 7-5 x 72

(All expressions have an Integer either negative or positive u just can't type it correctly here and B and D or not 77 or 72 it's 7 and positive 7 and D is 7 positive 2