Question

Evaluate the expression 4x^9y^-4/x^8y^-6 for x = 5 and y = 2.

Answer 1

9.6 hope this helps you
if not my bad.

Answer 2

Answer:
80

Explanation:

`(4x^(9) y^(-4))/( x^(8) y^(-6) )`
x = 5 and y = 2

`(4(5)^(9) (2)^(-4))/( (5)^(8) (2)^(-6) )`
Solve all the exponents first:

`(4(1953125)(.0625))/((390625)(.015625))`
Multiply.

`(488281.25)/(6103.5156)`
Divide.
80