Solve the problem.John owns a hotdog stand. His profit is represented by the equation P = -x2 + 10x + 31, with P being profits and x the number of hotdogs. What is the most he can earn?
A. $25
B. $51
C. $66
D. $56
Answer: D
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A wheat farmer plants a field with winter wheat. The shape of the field is shown below. If 43,560 square feet equals one acre, how many acres are in this field? Round your answer to the nearest tenth.
Simplify. Combine like terms if possible.-9z - (-5z)
A. -14z B. -4z C. 4z D. -4z2
Establish the identity.cot3x = cot x (csc2 x - 1)
What will be an ideal response?