1. The rectangular parallelepiped dimensions at a certain instant are 2.5, 3.2 and 5.1 meters, and they are increasing at the rates of 2.25, 3.3 and 4.6 m/s, respectively. At what rate is the volume increasing? a. 161.5 m/s c. 151.6 m/s b. 116.5 m/s d. 115.6 m/s 2. A vertical tank having a radius of R and an altitude of 10 m is filled with water at a rate of 1 m3/min. How fast is the surface rising in the tank? а. с. 2AR2 10 b. d.

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