Solve. Round to the nearest tenth if necessary.Find the amount of decrease and the percent decrease when the original amount is 20 and the new amount is 12.
A. 12; 42.9%
B. 8; 66.7%
C. 12; 60%
D. 8; 40%
Answer: D
Mathematics
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Find the derivative of the function.y = x5cos x - 8x sin x - 8 cos x
A. -x5 sin x + 5x4 cos x - 8x cos x - 16 sin x B. -5x4 sin x - 8 cos x + 8 sin x C. -x5 sin x + 5x4 cos x - 8x cos x D. x5 sin x - 5x4 cos x + 8x cos x
Mathematics
Use the order of operations to simplify the expression.29 + 13 ? 24
A. 341 B. 1008 C. 401 D. 66
Mathematics
Find the maximum or minimum value of the given objective function of a linear programming problem. The figure illustrates the graph of feasible points. 
Objective Function: z = 5x + 6yFind minimum.
A. minimum: 40 B. minimum: 33 C. minimum: 32 D. no minimum
Mathematics
Find a general term, an, for the given terms of the sequence.
, 
, 
, 
, . . .
A. an = 
B. an = 
C. an = 
D. an = 
Mathematics