Question

What is the value

Answer 1

What is the value of y^-5/x^-3 for x = 2 and y = -4 open

Answer 2

confused?

Answer 3

Very.

Answer 4

ok ill try my best

Answer 5

Mhmm.

Answer 6

@Hero

Answer 7

susbtitute and solve:
\[\frac{ y^{-5} }{ x^{-3} }=\frac{ (-4)^{-5} }{ 2^{-3} }\]

use rule a^{-b}=1/(a^b)

Answer 8

\[\frac{ \frac{ 1 }{ (-4)^5 } }{ \frac{ 1 }{ 2^3} }=\frac{ 1 }{ -1024 }*8=?\]

Answer 9

128?

Answer 10

I'm sorry. I really don't know how to do this

Answer 11

it would be -1/128, not 128

Answer 12

That's what I thought. Thank you.

Answer 13

:)