Solve the problem.Suppose that the radius r and volume V = 
?r3 of a sphere are differentiable functions of t. Write an equation that relates dV/dt to dr/dt.
A. 
= 4?r2
B. 
= 
?r2
C. 
= 3r2
D. 
= 4?
Answer: A
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Provide an appropriate response.Adding the values in a set of numbers and then dividing the sum by the number of members in the set results in the:
A. mode B. mean C. range D. median
Find the expected value.Mr. Cameron is sponsoring an summer concert. He estimates that he will make $300,000 if it does not rain and make $60,000 if it does rain. The weather bureau predicts the chance of rain is 0.34 for the day of the concert. An insurance company is willing to insure the concert for $150,000 against rain for a premium of $30,000. If he buys this policy, what are his expected earnings from the concert?
A. $180,000 B. $300,000 C. $270,000 D. $239,400
Find the solution set of the equation. If the equation has no solution write ? and if the equation is an identity so state.
+ 
= 2
A. 
B. {5}
C. 
D. ?
Graph the function.f(x) = log5 x
A. 
B. 
C. 
D. 