Find the area of the specified region.Inside one loop of the lemniscate r2 = 2 cos 2?
A. 1
B. 
C. 2
D. 4
Answer: A
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Using the graph below, find the domain and range of the given function, and sketch the graph. 
y = f(-x - 2) + 1
A. D: [-7, 2]; R: [-2, 4]
B. D: [-3, 6]; R: [-2, 4]
C. D: [-7, 2]; R: [-2, 4]
D. D: [-6, 3]; R: [-2, 4]
Solve and check.130 + y = 830
A. y = 698 B. y = 960 C. y = 700 D. y = 107,900
Find an equation of a parabola that satisfies the given conditions.Focus (6, 7), directrix y = -3
A. (x - 6)2 = 20(y - 7) B. (x - 6)2 = 20(y - 2) C. (y - 7)2 = 20(x - 6) D. (x - 7)2 = 20(y - 2)
Solve the problem.An experimental model for a suspension bridge is built in the shape of a parabolic arch. In one section, cable runs from the top of one tower down to the roadway, just touching it there, and up again to the top of a second tower. The towers are both 12.25 inches tall and stand 70 inches apart. At some point along the road from the lowest point of the cable, the cable is 1.96 inches above the roadway. Find the distance between that point and the base of the nearest tower.
A. 13.8 in. B. 14.2 in. C. 21.2 in. D. 21 in.