Question

What is the value of the expression 7^-3

A. -21

B. -1/343

C. 1/343

D. 343

Answer 1

\(\Huge\color{blue}{ \bf a^{-4}= \frac{1}{a^{4} } }\)

\(\Huge\color{blue}{ \bf 7^{-3}= ? }\) you tell me

Answer 2

i dont understand how to do any of this....

Answer 3

you are just saying that if a number is raise to negative exponent, that it is the same as
1 divided by this number raised to a Positive exponent.

For example
\(\Huge\color{blue}{ \bf 3^{-5}= \frac{1}{3^{5} }=\frac{1}{125 } }\)

Answer 4

so........ im gonna say its C..

Answer 5

sorry not 125... 243

Answer 6

yes, you are correct.

Answer 7

oh okay. thank you