16-02-2018
Biology

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The radius of a cylindrical gift box is (2xplus3) inches. The height of the gift box is three times the radius. What is the surface area of the cylinder? Write your answer as a polynomial in standard form. The surface area of the cylinder is nothing.

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shelovesdeedee shelovesdeedee

16-02-2018

SA = 2*pi*r^2 + 2*pi*r*h just put the values of r=2x+3 and h=2(2x+3)=4x+6

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