A plane headed due south is traveling with an airspeed of 200 miles per hour. The wind currents are moving with constant speed in the direction 330°. If the ground speed of the plane is 100 miles per hour, what is its true course?
?
A. 257°
B. ?285°
C. ?220°
D. ?240°
E. ?190°
Answer: D
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Solve the problem.Ms. Patterson proposes to give her daughter Claire an allowance of $0.20 on the first day of her 15-day vacation, $0.40 on the second day, $0.80 on the third day, and so on. Find the allowance Claire would receive on the last day of her vacation.
A. $6553.60 B. $3.00 C. $16,384.20 D. $3276.80
Use I = Prt for simple interest to find the indicated quantity.P = $13,500; t = 4 months; I = $517.50. Find r.
A. 11.7% B. 7.7% C. 3.8% D. 11.5%
For the equation, create a table, -3 ? x ? 3, and list points on the graph.y = x + 4
A. 
(-3, 7), (-2, 6), (-1, 5), (0, 4), (1, 3), (2, 2),
(3, 1)
B. 
(-3, -1), (-2, -2), (-1, -3), (0, -4), (1, -5),
(2, -6), (3, -7)
C. 
(-3, 1), (-2, 2), (-1, 3), (0, 4), (1, 5),
(2, 6), (3, 7)
D. 
(-3, -7), (-2, -6), (-1, -5), (0, -4), (1, -3),
(2, -2), (3, -1)
Name the quadrant in which the angle ? lies.tan ? > 0, sin ? < 0
A. I B. II C. III D. IV