Evaluate the expression.
A. 36
B. -30
C. 6
D. -6
Answer: C
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?The graph below is one complete cycle of the graph of an equation containing a trigonometric function. Find an equation to match the graph. If you are using a graphing calculator, graph your equation to verify that it is correct.
?
What will be an ideal response?
Factor completely.x2 + 5xy - 104y2
A. (x + 13y)(x - 8y) B. (x - 13y)(x + 8y) C. (x - y)(x + 8y) D. (x - 13y)(x + y)
Use a calculator to find the acute angle ?, to the nearest degree, that satisfies the equation.tan ? = 7
A. 82° B. 76° C. 1° D. 13°
Solve.The period of vibration P for a pendulum varies directly as the square root of the length L. If the period of vibration is 2 sec when the length is 16 inches, what is the period when L = 3.0625 inches?
A. 2.75 sec B. 2.25 sec C. 3 sec D. 0.875 sec