Find the domain of the rational function.R(x) = 
A. 
B. 
C. 
D. 
Answer: A
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Find the absolute value.
, if x is positive
A. undefined B. 0 C. x D. -x
Solve the problem.The motion of a projectile that is fired at a 60° angle with the horizontal is given by x = 
t, 
for t in 
Suppose a projectile is fired with an initial velocity of 300 feet per second at an angle of 60° with the horizontal. Find (a) the time when it strikes the ground and (b) the range (horizontal distance covered).
A. (a) 9.4 sec (b) 2436 ft B. (a) 16.2 sec (b) 2436 ft C. (a) 4.7 sec (b) 352 ft D. (a) 8.1 sec (b) 3164 ft
Find the median of the set of numbers.
, 1, 
, 
, 
A. 
B. 
C. 
D. 
Solve the problem.Given is a graph of a portion of the postage function, which depicts the cost (in cents) of mailing a letter, p, versus the weight (in ounces) of the letter, x. Find each limit, if it exists:
p(x), 
p(x), 
p(x)
A. 77; 99; 77 B. 77; 77; 77 C. 77; 99; does not exist D. 99; 77; does not exist