SOLUTION: The radius of the circular top or bottom of a tin can with a surface area S and a height h is given by -h +√h^2 + .64s r =----------- ----------- ------- 2 What radius

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Question 33925: The radius of the circular top or bottom of a tin can with a surface area S and a height h is given by
-h +√h^2 + .64s
r =-------------------------------
2
What radius should be used to make a can with a height of 35 inches and a surface area of 11,025 square inches?

A) 30 inches

B) 15 inches

C) 63 inches

D) 28 inches

Actual problem here: http://www.ccaurora.edu/mat090/Tests/test_chapter_8_files/image052.gif

Answer by venugopalramana(3286) About Me  (Show Source):
You can put this solution on YOUR website!
x+=+%28-H+%2B-+sqrt%28+H%5E2-0.64%2AS+%29%29%2F2+
x+=+%28-35+%2B-+sqrt%28+%28-35%29%5E2-0.64%2A11025+%29%29%2F2+
X=28.................D IS THE ANSWER