Solve the problem.
The graph of y = f(x) depicts the amount of cash y in dollars that a bank teller has at his station after x minutes. (i) When did the largest withdrawal occur? (ii) How much was it?
A. After 165 minutes; $150
B. After 75 minutes; $250
C. After 165 minutes; $250
D. After 30 minutes; $150
Answer: C
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Solve the problem.The ratio of the distances a 7-iron and a 5-iron will drive a golf ball is 5 to 6. If a golfer averages 107 yards with a 7-iron, how far should he average with a 5-iron? (Round approximations to the nearest yard.)
A. 118 yd B. 96 yd C. 128 yd D. 89 yd
Determine the coordinates of the focus and the equation of the directrix of the parabola.x2 = 12y
A. F(3, 0), x = 3 B. F(3, 0), y = 3 C. F(0, 3), y = -3 D. F(0, -3), x = - 3
A value of sinh x or cosh x is given. Use the definitions and the identity 
to find the value of the other indicated hyperbolic function.cosh x = 
, x < 0, csch x =
A. - 
B. 
C. - 
D. - 
Solve the problem. The enrollment at a certain college for women and men, W(t) and M(t), respectively, can be modeled by the system:W(t) = 92.6t + 3167M(t) = 62.3t + 4092where t is the number of years since 1992. Let P(t) be the percentage of students that are women at t years since 1992. By finding an equation of P, determine the year when 50.4% of students at the college will be women.
A. 2022 B. 2028 C. 2026 D. 2024