Write an expression for the total area of the figure(s) shown.
A. a2 + 2ab
B. 2a2 + ab + 2b2
C. a2 + 2ab + b2
D. a2 + b2
Answer: C
Mathematics
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A. 
cos 81
B. 
(1 - cos 81)
C. 
(1 - cos 81)
D. 
cos 81
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Make a sketch of the population function (as a function of time) that results from the given growth rate function. Assume the population at time t = 0 begins at some positive value.
A. 
B. 
C. 
D. 
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How many minutes are in 4 hours?
A. 2,400 B. 120 C. 80 D. 480 E. 240
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Find the derivative at each critical point and determine the local extreme values.y = x2
A. 
B. 
C. 
D. 
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