Discuss the equation and graph it.r = 
A. directrix parallel to polar
axis 2 below pole
focus (0, 0), vertex 
B. directrix perpendicular to polar
axis 2 left of pole
focus (0, 0), vertex 
C. directrix perpendicular to polar
axis 2 right of pole
focus (0, 0), vertex 
D. directrix parallel to polar
axis 2 above pole
focus (0, 0), vertex 
Answer: B
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Divide. Simplify if possible.
÷ 
A. a - w
B. a
C. - 
D. a2 - w2
Which of the following is a definition of a scalene triangle? ?
A. ?Has three sides of different lengths. B. ?Has at least two sides that are the same length. C. ?Has at least two sides that are different lengths. D. ?Has three sides that are all the same length. E. ?All three interior angles are of different measure. F. ?aand e are true.
Solve the right triangle. If two sides are given, give angles in degrees and minutes.
a = 69.74 ft, c = 242 ftRound the missing side length to two decimal places.
A. A = 14° 45', B = 75° 15', b = 243.32 ft B. A = 16° 45'; B = 73° 15'; b = 231.73 ft C. A = 17° 45', B = 72° 15', b = 231.73 ft D. A = 16° 45', B = 73° 15', b =215.51 ft
Solve the problem.Consider a retirement savings account where the monthly contribution is $175 for the first 20 years, is increased to $225 for the next 5 years, and then is increased once again to $375 for the last 15 years. The APR is always 4.8% compounded monthly. What is the value of the account at the end of 40 years? Round your answer to the nearest cent.
A. $310,143.23 B. $314,907.23 C. $313,040.67 D. $312,009.78 E. $315,938.12