31.
(A)
(B)
(C)
(D)
32.
(A)
(B)
(C)
(D)
33.
(A)
(B)
(C)
(D)
Part B
TIME: 45 MINUTES
Some questions in this part of the examination require the use of a graphing calculator. There are
15 questions in Part B, for which 45 minutes are allowed. Because there is no deduction for wrong
answers, you should answer every question, even if you need to guess.
Directions: Choose the best answer for each question. If the exact numerical value of the correct
answer is not listed as a choice, select the choice that is closest to the exact numerical answer.
Where, in the first quadrant, does the rose r = sin 3θ have a vertical
tangent?
θ = 0.393
θ = 0.468
θ = 0.598
θ = 0.659
A cup of coffee placed on a table cools at a rate of = −0.05(H − 70)°F
per minute, where H represents the temperature of the coffee and t is time
in minutes. If the coffee was at 120°F initially, what will its temperature
be 10 minutes later?
73°F
95°F
100°F
105°F
An investment of $4000 grows at the rate of 320e0.08t dollars per year
after t years. Its value after 10 years is approximately
$12,902
$8902
$7122
$4902
