Simplify the expression 4^6*x^8y^-2/4^7*x^4y^2
a.x^4/4y^4
b.x^12/4^13
c.x^4/4
d.4x^4/y^4

Question

Simplify the expression 4^6*x^8y^-2/4^7*x^4y^2
a.x^4/4y^4
b.x^12/4^13
c.x^4/4
d.4x^4/y^4

anonymous · Answer

a|dw:1397434129363:dw|s

anonymous · Answer

hope that helps

anonymous · Answer

that wasn't an option @katragaddasaichandra

anonymous · Answer

it is B

anonymous · Answer

okay thank u @katragaddasaichandra

anonymous · Answer

The surface area of a sphere is found using the formula sa=4pier^2, where r is the radius of the sphere. The surface area of a cube that is the same height and width (2r) as the sphere is 24r^2 . What is the ratio of the surface area of the sphere to the surface area of the cube?

@katragaddasaichandra

anonymous · Answer

well just equate the 2 surface areas and simplify
4πr2=24r2
simple as that

anonymous · Answer

or perhaps
4πr2:24r2

anonymous · Answer

but it looks like you are required to write the ratios as fractions so its
4πr224r2

anonymous · Answer

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