Solve the problem.Any offset between a stationary radar gun and a moving target creates a "cosine effect" that reduces the radar mileage reading by the cosine of the angle between the gun and the vehicle. That is, the radar speed reading is the product of the actual reading and the cosine of the angle. Find the radar reading to the nearest hundredth for the auto shown in the figure. 
A. 23.03 mph
B. 89.97 mph
C. 88.03 mph
D. 85.97 mph
Answer: D
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Graph the linear function using the slope and y-intercept.y = 
x + 3
A. 
B. 
C. 
D. 
Solve.Suppose that you are planning a trip to England so you need to obtain some British pounds. The amount received in pounds varies directly with the amount in U.S. dollars. Your friend just converted $1900 into 988 pounds. The linear function that relates the number of pounds P to the number of U.S. dollars d is 
Graph the relation between pounds and U.S. dollars.
A. 
B. 
C. 
D. 
Identify the conic that the polar equation represents. Also, give the position of the directrix.r = 
A. ellipse, directrix is perpendicular to the polar axis at a distance 
units to the right of the pole
B. hyperbola, directrix is perpendicular to the polar axis at a distance 3 units to the right of the pole
C. hyperbola, directrix is perpendicular to the polar axis at a distance 
units to the left of the pole
D. ellipse, directrix is perpendicular to the polar axis at a distance 3 units to the left of the pole
Match the graph to one of the polar equations. 
A. r = 6 cos ? B. r = 3 C. r sin ? = 3 D. r = 6 sin ?