Question

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

Answer 1

So we have the equation \[\frac{ -4^{-5} }{ 2^{-3} }\]

Answer 2

Which then means \[\frac{ (-4*-4*-4*-4*-4)^{-1} }{ (2*2*2)^{-1} }\]

Answer 3

Can you evaluate that?

Answer 4

-256/-8

Answer 5

Check your answer. What is -4^5. And where did you get the negative from the bottom?

Answer 6

idk what im doing

Answer 7

haha no stress.

Answer 8

-1024/8

Answer 9

ohhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhhh 128

Answer 10

Yes, but remember how both of them are two the power of negative 1? That means that they are inverse, giving you the fraction 8/-1024

Answer 11

but would it be -128?

Answer 12

No, the fraction is inversed. The answer isn't -1024/8.

Answer 13

-1/128

Answer 14

Yes! well done.

Answer 15

yayyyyyy thank you :))))

Answer 16

all good.