Evaluate the expression for the given value or values.-xy for x = 9, y = 73
A. -657
B. 657
C. 642
D. -642
Answer: A
Mathematics
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Factor the trigonometric expression.cot2? cos ? - 10 cot ? cos ? + 24 cos ?
A. (cot ? cos ? - 4)(cot ? - 6 cos ?) B. (cos ?)(cot ? - 24)(cot ? - 1) C. (cot ? cos ? + 4)(cot ? - 6 cos ?) D. (cos ?)(cot ? - 4)(cot ? - 6)
Mathematics
Eliminate the parameter of the pair of parametric equations.x = t2 + 1, y = t2 - 1
A. y = x2 + 2, x ? 1 B. y = x2 - 2, x ? 1 C. y = x - 2, x ? 1 D. y = x + 2, x ? 1
Mathematics
Solve the problem.A stockbroker sold 25 shares of stock for $22.00 each. What was the total amount of the sale?
A. $549.90 B. $550.11 C. $550.00 D. $550.10
Mathematics
Write the statement as an inequality.z is less than or equal to 3
A. z ? 3 B. z > 3 C. z < 3 D. z = 3
Mathematics