Solve the problem.The average number of vehicles waiting in line at a toll booth of a super highway is modeled by the function 
, where x is a quantity between 0 and 1 known as the traffic intensity. What happens to the average number of vehicles waiting as traffic intensity increases?
A. The average number of vehicles waiting decreases.
B. The average number of vehicles waiting decreases at first, but then increases.
C. The average number of vehicles waiting increases.
D. The average number of vehicles waiting remains constant.
Answer: C
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Provide an appropriate response.What is the first step in solving the following formula for t?zt2 = kl - 3
What will be an ideal response?
Decide whether or not the functions are inverses of each other.f(x) = 
, domain [-2, ?); g(x) = x2 + 2, domain (-?, ?)
A. No B. Yes
Determine the continuity of the function at the given points.f(x) = 
at x = 2 and x = 1
A. The function f is continuous at both 
and 
B. The function f is continuous at neither 
nor 
C. The function f is continuous at 
but not at 
D. The function f is continuous at 
but not at 
Solve the problem.Jim has gotten scores of 69 and 66 on his first two tests. What score must he get on his third test to keep an average of 70 or better?
A. at least 68 B. at least 67.5 C. at least 75 D. at least 73