Determine whether the given quadratic function has a maximum or minimum value. Then find that maximum or minimum value.f(x) = -(x + 5)2 - 1
A. Minimum, 5
B. Maximum, 5
C. Minimum, -1
D. Maximum, -1
Answer: D
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Change the order of integration and evaluate the integral.
A. 
?
B. 
?
C. 
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D. 
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Divide and simplify.
A. 4x + 7
B. 4x + 7 + 
C. 9x + 7
D. 4x + 35x3 + 
Solve.When making a telephone call using a calling card, a call lasting 5 minutes cost $1.70. A call lasting 14 minutes cost $3.95. Let y be the cost of making a call lasting x minutes using a calling card. Write a linear equation that models the cost of a making a call lasting x minutes.
A. y = 4x - 
B. y = -0.25x + 2.95
C. y = 0.25x - 10.05
D. y = 0.25x + 0.45
Solve the problem.If an object is thrown upward with an initial velocity of 13 feet per second, its height is given by 
after time t seconds. What is its maximum height?
A. 172 ft B. 39 ft C. 169 ft D. 117 ft