Simplify the expression.
A. 
B. 
C. a - 6
D. a + 6
Answer: D
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Give the largest interval where the function increases or decreases, as requested.f(x) = x2 + 8; decreases
A. (-8, 0) B. (0, 8) C. (-?, 0) D. (0, ?)
Find the zeros of the polynomial function. State whether the graph crosses the x-axis, or touches the x-axis and turns around, at each intercept. f(x) = -x2(x + 4)(x2 - 1)
A. x = 0, touches the x-axis and turns around; x = -4, crosses the x-axis; x = 1, touches the x-axis and turns around B. x = 0, crosses the x-axis; x = -4, crosses the x-axis; x = -1, crosses the x-axis; x = 1, crosses the x-axis C. x = 0, touches the x-axis and turns around; x = -4, crosses the x-axis; x = -1, crosses the x-axis; x = 1, crosses the x-axis D. x = 0, touches the x-axis and turns around; x = 4, crosses the x-axis; x = -1, touches the x-axis and turns around; x = 1, touches the x-axis and turns around
What is the full retirement age, the age at which a person receives full Social Security benefits, of a person born after 1962?
What will be an ideal response?
Use the given information to find the exact value of the trigonometric function.cos ? = 
, ? lies in quadrant IV
Find cos 
.
A. - 
B. 
C. - 
D. 