A sphere has a radius of 5x + 3. Write a polynomial in standard form that best describe the total surface area of the sphere. Use the formula S = 4pi r^2 for surface area of a sphere.

Question

anonymous · Answer

HHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHHhEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEEELLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLLPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPPP

openstudyrocks5* · Answer

Whats the radius? All i need to know and i should have your answer.

irishboy123 · Answer

A sphere has a radius of 5x + 3

anonymous · Answer

5x+3

openstudyrocks5* · Answer

That doesn't count as a radius... i guess. im using something and it says it has to be positive.

anonymous · Answer

well thats what the qestion says

openstudyrocks5* · Answer

... It wants a radius and a postive

anonymous · Answer

i feel depressed.... (  ._.)

irishboy123 · Answer

no, you need to use 5x + 3 as the radius and do some algebra.

anonymous · Answer

@IrishBoy123  exactly

irishboy123 · Answer

so for surface area = 4 π r^2, replace the r by 5x + 3

then you're schmooking!