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Mathematics 7 Online
OpenStudy (anonymous):

A sphere has a radius of 2x+5 Which polynomial in standard form best describes the total surface area of the sphere? Use the formula S= 4 pi r^2 for the surface area of a sphere

OpenStudy (anonymous):

ok so you have the formula for a sphere now put the expresion for the radius into the formula and write the equation that you create.

OpenStudy (anonymous):

Wait where do I view the formula?

OpenStudy (anonymous):

Oh wait actually I see it my bad I had a slow moment

OpenStudy (anonymous):

you wrote the formula in your question so you have the following:\[r = 2x+5\]and\[Surface Area = 4 \pi r^{2}\] now place one inside other and write what you get

OpenStudy (anonymous):

yeah, don't worry sometimes it just clicks

OpenStudy (anonymous):

has this solved your problem?

OpenStudy (anonymous):

4pi(2x+5)^2 (2x+5)(2x+5)

OpenStudy (anonymous):

What is the next step after this?

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