Evaluate the expression when x is 
. Use exact values.
?
7 cos 3x
?
A. 0
B. 7
C. 3
D. 0
E. -3
Answer: A
Mathematics
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Calculate the derivative of the function. Then find the value of the derivative as specified.f(x) = 5x + 9; f '(2)
A. f '(x) = 0; f '(2) = 0 B. f '(x) = 9; f '(2) = 9 C. f '(x) = 5x; f '(2) = 10 D. f '(x) = 5; f '(2) = 5
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Does the system have one solution, no solution, or an infinite number of solutions?x - 6 = yy + 9 = x
A. One B. No Solution C. Infinite number
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Graph the system of inequalities, and find the coordinates of the vertices.x + 2y ? 2 x - y ? 0
A. 
B. 
C. 
D. 
Mathematics
Perform the indicated operation.38.4 m - 1.58 dam (in meters)
A. 382.42 m B. 22.6 m C. 36.82 m D. 38.242 m
Mathematics