Find the exact value of the trigonometric expression without the use of a calculator.cos 
A.
B.
C.
D. 1
Answer: B
Mathematics
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Solve the equation.4x + 6(-2x - 6) = -35 - 9x
A. 1
B. - 1
C.
D. - 71
Mathematics
Solve the problem.The price p (in dollars) and the quantity x sold of a certain product obey the demand equation p = -5x + 160, 0 ? x ? 32.What price should the company charge to maximize revenue?
A. $19.2 B. $8 C. $24 D. $16
Mathematics
Find a positive value of the given variable so that the trinomial is factorable.x2 + bx + 11; b = ?
A. 13 B. 10 C. 11 D. 12
Mathematics
Each matrix is nonsingular. Find the inverse of the matrix. Be sure to check your answer.
A.
B.
C.
D.
Mathematics