Simplify the expression.
A. csc x
B. -sec x
C. -cos2x
D. sin x
Answer: A
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Solve the problem.John owns a hotdog stand. He has found that his profit is represented by the equation 
with P being profits and x the number of hotdogs. How many hotdogs must he sell to earn the most profit?
A. 47 hotdogs B. 23 hotdogs C. 27 hotdogs D. 26 hotdogs
Solve the system. x - y + 2z = -3-4x + 4y - 8z = -3 x + 3y + z = 6
A. (0, 3, -3) B. (-3, 3, 0) C. (-3, 0, 3) D. No solution
Determine, without graphing, whether the given quadratic function has a maximum value or a minimum value and then find that value.f(x) = x2 - 2x - 8
A. minimum; - 9 B. maximum; 1 C. maximum; - 9 D. minimum; 1
Provide an appropriate response.In the given figure, the graphs of y = ax for 
are given. Identify the graph of y = 1.5x.
A. II B. IV C. V D. III