Find the volume of the solid generated by revolving the region about the y-axis.The region enclosed by x = 
, x = 0, y = - 4, y = 4
A. 
?
B. 
?
C. 
?
D. 
?
Answer: B
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Perform the indicated operation.(-9y + 9) + (-5y2 + 5y - 2)
A. -5y2 + 4y + 7 B. -14y2 - 5y + 7 C. -5y2 - 4y + 7 D. -5y2 - 4y + 11
Provide an appropriate response.If a and b are both nonzero, then what is the product of 
and 
A. A real number only if a and b are both positive B. A real number only if a is positive and b is negative C. A positive real number only if a and b are both positive D. A positive real number
Use a Venn diagram to find the indicated probability.Suppose P(B) = 0.35, P(C) = 0.47, and P(B ? C) = 0.27. Find P(B' ? C').
A. 0.73 B. 0.76 C. 0.28 D. 0.49
Solve the problem.The temperature of the water in a certain lake on a day in October can be determined by using the model 
where x is the depth in feet and y is the Celsius temperature of the water. Based on this model, at what depth is the temperature of the water 14 degrees Celsius? Round to the nearest foot.
A. 58 ft B. 54 ft C. 2 ft D. 21 ft