Without graphing, find the maximum value or minimum value.f(x) = 0.25(x + 9)2 - 6
A. 8
B. -6
C. 9
D. 10
Answer: B
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Use the given growth rate to find the approximate doubling time and to predict the population in 50 years of a growing suburban town (based on a current population of 100,000).Use the average growth rate between 1850 and 1950, which was about 1.5%.
A. 49 years; population in 50 years = 243,803 B. 47 years; population in 50 years = 210,151 C. 57 years; population in 50 years = 181,145 D. 42 years; population in 50 years = 156,142
Find all solutions of the equation.2 cos x - 1 = 0
A. x = 
+ n? or x = 
+ n?
B. x = 
+ n? or x = 
+ n?
C. x = 
+ 2n? or x = 
+ 2n?
D. x = 
+ 2n? or x = 
+ 2n?
Find the volume of the solid generated by revolving the region about the given axis. Use the shell or washer method.The region in the first quadrant bounded by x = 4y - y2 and the y-axis about the x-axis
A. 
?
B. 32?
C. 
?
D. 64?
Determine the period of the given function.y = 3 cos x
A. ?
B. 3
C. 2?
D. 