Solve.Simplify: 
.
A. 8k7q8
B. 8k3q4
C. 8k3q4
D. 8k2q4
Answer: B
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Divide.
A. 2r
B. 
C. 
D. Cannot be simplified
Rewrite the trigonometric expression as an algebraic expression involving the variable u. Assume that 
and that the value of the "inner" inverse trigonometric expression represents an angle ? such that 
sin (tan-1 u)
A. 
B. u
C. 
D. 
Simplify the factorial expression.
A. n + 14
B. n + 15
C. 
D. 
Solve the problem.The motion of a projectile that is fired at a 30° angle with the horizontal is given by x = v0
t, 
for t in 
Suppose a projectile is fired with an initial velocity of 650 feet per second at an angle of 30° with the horizontal. Find (a) the time when it reaches maximum altitude (b) the maximum altitude.
A. (a) 40.6 sec (b) 3301 ft B. (a) 17.6 sec (b) 14,854 ft C. (a) 20.3 sec (b) 11,434 ft D. (a) 10.2 sec (b) 1650 ft