Determine the symmetries of the curve.r = 2 - 4 sin ?
A. No symmetry
B. x-axis only
C. y-axis only
D. Origin only
Answer: C
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Determine the quadrant(s) in which (x, y) is located so that the condition(s) is (are) satisfied. ? x> 3 and y = 1 ?
A. Quadrant III B. Quadrant I C. Quadrant III and IV D. Quadrant II E. Quadrant IV
0.013741 =
a. 1.4 ð 10-3 b. 1.37 ð 10-2 c. 1.37 ð 10-5 d. 1.4 ð 10-6 e. 1.4 ð 104
Solve the problem.A sequence of yearly payments of $5000 is invested at an interest rate of 1.5%, compounded annually. What is the total amount of the annuity after 10 years?
A. $54,513.61 B. $53,013.61 C. $52,513.61 D. $53,513.61
Solve the problem.Between 7:00 AM and 8:00 AM, trains arrive at a subway station at a rate of 15 trains per hour 
per minute). The following formula from statistics can be used to determine the probability that a train will arrive within t minutes of 7:00 AM. F(t) = 1 - e-0.25tDetermine how many minutes are needed for the probability to reach 20%.
A. 0.89 min B. 5.34 min C. 2.35 min D. 4.12 min