Question

A cylinder has a volume of 245 cubic units and a height of 5 units. The diameter of the cylinder is

7 units
14 units
49 units

Answer 1

The independent variable here is b, the number of mats; the dependent var. is p, the cost of b mats. Thus, p = f(b).

Here, 245 units^3 = pi*r^2*(5 units), or

245 units^3

r^2 = ------------------- = 15.61 units^2. Thus, the radius is sqrt(15.61 units^2), or

5(3.14) units 3.95 units. The DIAMETER is d = 2*r = 7.90 units.

Answer 2

14 Units

Explanation:

A cylinder has a volume of 245 cubic units and a height of 5 units. The diameter of the cylinder is

7 units

14 units

49 units

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