Graph the polar equation.r = 
A. 
B. 
C. 
D. 
Answer: A
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Solve the problem.If a graph is symmetric with respect to the origin and it contains the point (-4, 7), which of the following points is also on the graph?
A. (7, -4) B. (-4, -7) C. (4, 7) D. (4, -7)
Use a calculator to find the approximate value of the expression. Round the answer to two decimal places.cos 9
A. -0.91 B. -0.99 C. 0.91 D. 0.99
Solve the problem.Between 7:00 AM and 8:00 AM, trains arrive at a subway station at a rate of 8 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-0.13tDetermine how many minutes are needed for the probability to reach 60%.
A. 6.57 min B. 7.05 min C. 9.18 min D. 2.52 min
Simplify the complex fraction.
A. 
B. 
C. 
D. 