Question

Which of the following expressions is equivalent to m/n^7?
a.-mn^7
b.mn-7
c.-m/n^7
d.-m/n^-7

Answer 1

first idea: exponents do NOT change the sign of a number

Answer 2

The answer is b right @phi

Answer 3

I believe the answer is B

Answer 4

Yes, it is B

the rule is
\[ \frac{1} {x^{-a} } = x^a\]
and
\[ x^{-a} = \frac{1}{x^a} \]
If you "flip" an expression, you change the sign of the exponent.

Answer 5

yerp @dom30011165 so phi explained for you lol i just gave u the answer