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Solve the Problem rr Increases at the Rate Of 0.040.04 Inches Per Second and That

Question 213

Multiple Choice

Solve the problem.
-A high-altitude spherical weather balloon expands as it rises due to the drop in atmospheric pressure. Suppose that the radius rr increases at the rate of 0.040.04 inches per second and that r=33r = 33 inches at time t=0t = 0 . Determine the equation that models the volume V\mathrm { V } of the balloon at time tt and find the volume when t=310t = 310 seconds.


A) V(t) =4π(0.04t) 33;23,959.34in3\mathrm { V } ( \mathrm { t } ) = \frac { 4 \pi ( 0.04 \mathrm { t } ) ^ { 3 } } { 3 } ; 23,959.34 \mathrm { in } ^ { 3 }
B) V(t) =4π(33+0.04t) 33;391,973.01in3V ( t ) = \frac { 4 \pi ( 33 + 0.04 t ) ^ { 3 } } { 3 } ; 391,973.01 \mathrm { in } ^ { 3 }
C) V(t) =4π(33+0.04t) 2;1,306,170.68V ( t ) = 4 \pi ( 33 + 0.04 t ) ^ { 2 } ; 1,306,170.68 in. 3
D) V(t) =4π(0.04t) 2;1932.21V ( t ) = 4 \pi ( 0.04 t ) ^ { 2 } ; 1932.21 in.3

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