Find f'(x).f(x) = 
A. f'(x) = - 
B. f'(x) = - 
C. f'(x) = 
D. f'(x) = 
Answer: A
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Rewrite the expression as a single trigonometric function using a double-angle identity.1 - 2 sin22?
A. cos 4?
B. 
sin 16?
C. 2 sin 4?
D. cos 8?
Determine if the graph is symmetric with respect to x-axis, y-axis, and/or the origin.
A. y-axis B. x-axis C. Origin D. x-axis, origin
For the food described, find the percent of total calories from fat. If necessary, round to the nearest tenth of a percent.Salad dressing serving size 70 tablespoons. CaloriesTotal 70From fat 21
A. 30% B. 333% C. 15% D. 3%
Solve the problem.A water tank can be filled in 5 minutes and emptied in 7 minutes. If the drain is accidentally left open when the tank is being filled, how long does it take to fill the tank?
A. 24 min
B. 2 min
C. 10 min
D. 17
min