Find the exact value of the expression using a sum, difference, or double-angle identity.
A. - 
B. 
C. 
D. -
Answer: A
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Solve the problem.This chart shows the number of meals served in a restaurant during each of the past 4 months. Assume that the information in the chart defines a function with the name g. State the range of g.
A. {(3500, January), (3557, February), (3541, March), (3562, April)} B. {(January, 3500), (February, 3557), (March, 3541), (April, 3562)} C. {3500, 3557, 3541, 3562} D. {January, February, March, April}
Find the intercepts of the function f(x).f(x) = 3x - x3
A. x-intercepts: 0, -3; y-intercept: 0
B. x-intercepts: 0, -3; y-intercept: 3
C. x-intercepts: 0, 
, -
; y-intercept: 3
D. x-intercepts: 0, 
, -
; y-intercept: 0
State whether the vectors are parallel, orthogonal, or neither.v = 4i - 2j,
w = 4i + 2j
A. Orthogonal B. Parallel C. Neither
Solve.x2 = 81
A. 40.5 B. -9, 9 C. -10, 10 D. 9