:an icicle is in the shape of an inverted cone with a diameter of 9 mm and a height of 120 mm. the icicle drips at a rate of 75mm^3 per minute. how long will it take the icicle to completely melt? use 3.14!

a. 5.1 min
b. 7.5 min
c. 15.1 min
d. 33.9 min

Find the volume of the icicle using the formula V = PI x r^2 x h/3

Volume = 3.14 x 4.5^2 x 120/3

Volume = 3.14 x 20.25 x 40

Volume = 2543.4 cubic mm.

Now divide the total volume by the drip rate:

2543.4 / 75 = 33.9 minutes.

The answer is D.

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step-by-step explanation: