Use the fundamental identities and appropriate algebraic operations to simplify the expression.
- tan x
A. tan x
B. tan2 x
C. csc x
D. cot x
Answer: D
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Find f-1(x) for the following one-to-one function f.f = {(-7, 3), (-1, 1), (6, 2), (8, 4)}
A. f-1 = {(-3, 7), (-1, -1), (2, -6), (4, -8)} B. f-1 = {(3, -7), (1, -1), (2, 6), (4, 8)} C. f-1 = {(-3, 7), (-1, 1), (-2, -6), (-4, -8)} D. f-1 = {(7, -3), (1, -1), (-6, -2), (-8, -4)}
Solve the problem.Find the image of the polygon ABCDE under the glide reflection that takes B to B' and C to C'.
A. 
B. 
C. 
D. 
Simplify the expression.
? 
A. 4
B. 7
C. 16
D. 2
Solve.The outside of a water storage tank is in the shape of a sphere. If the radius is 19.4 feet, approximate the volume of the tank in cubic feet. Use ? = 3.14 and round to the nearest hundredth, if necessary.
A. 1181.77 ft3 B. 1575.69 ft3 C. 30,568.46 ft3 D. 22,926.35 ft3