Question 68221
2) The volume of a cylinder (think about the volume of a can) is given by V = πr^2h where r is the radius of the cylinder and h is the height of the cylinder. Suppose the volume of the can is 121 cubic centimeters. 
a) Write h as a function of r. Keep "pi" in the function's equation.
Answer: h=121/(pi)r^2
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b) What is the measurement of the height if the radius of the cylinder is 3 centimeters? Round your answer to the hundredth's place.
Answer: h= 4.28 centimeters
Show work in this space. 
h=121/(pi)R^2
h=121/(3.14)(3)^2
h=121/(3.14)(9)
h=121/28.26 
h=4.2795
c) Graph this function: h = 121/(pi)r^2
{{{graph(300,200,-10,10,-10,10,121/(3.14159x^2))}}}
Cheers,
stan H.