Simplify the expression.
A. tan x sec x
B. sec x - tan x
C. tan x - sec x
D. tan x + sec x
Answer: D
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Solve the problem.The position (in centimeters) of an object oscillating up and down at the end of a spring is given by 
at time t (in seconds). The value of A is the amplitude of the motion, k is a measure of the stiffness of the spring, and m is the mass of the object. How fast is the object accelerating when it is accelerating the fastest?
A. A cm/sec2
B. 
cm/sec2
C. A2 cm/sec2
D. A
cm/sec2
Solve the problem.The hyperbola 
- 
= 1 is shifted horizontally and vertically to obtain the hyperbola
- 
= 1Find the asymptotes of the new hyperbola.
A. y + 3 = ± 
(x + 1)
B. y = ± 
x
C. y + 3 = ± 
(x + 1)
D. y + 3 = ± 
(x + 1)
Is the following a statement? What is its truth value? 3 + x = 9
A. Not a statement. This cannot be answered true or false. B. Statement. The truth value is false for all x-values. C. Statement. The truth value is true when x is 6 and false for any other x-value.
Solve the problem.If a projectile is fired at an angle ? and initial velocity v, then the horizontal distance traveled by the projectile is given by 
Express D as a function of 2?.
A. D = 
v2 sin 2?
B. D = 
v2 sin 2?
C. D = 
v2 sin 2?
D. D = 
v2 cos 2?