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 stand 50 inches apart. At a point between the towers and 15 inches along the road from the base of one tower, the cable is 1 inches above the roadway. Find the height of the towers.
A. 5.75 in.
B. 8.25 in.
C. 6.75 in.
D. 6.25 in.
Answer: D
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Solve the initial value problem.
= -8e-x, y(0) = -3, y'(0) = 0
A. y = -8e-x - 8x + 5 B. y = -8e-x - 3 C. y = 8e-x + C D. y = -8e-x + 8x - 11
Solve the problem. Round to the nearest tenth when necessary.The roof of a building is in the shape of the hyperbola 
where x and y are in meters. Determine the distance, w, between the outside walls.A = 8 m
A. 8.4 m B. 57 m C. 7.55 m D. 15.1 m
Write the decimal number in words.3.00524
A. three and five hundred twenty-four millionths B. three and five hundred twenty-four hundred-thousandths C. three and five hundred twenty-four tenths D. three and five hundred twenty-four thousandths
Solve the problem.The Earth rotates about its pole once every 24 hours. The distance from the pole to a location on Earth 8° north latitude is about 3921.5 miles. Therefore, a location on Earth at 8° north latitude is spinning on a circle of radius 3921.5 miles. Compute the linear speed on the surface of the Earth at 8° north latitude.
A. 163 mph B. 1027 mph C. 1080 mph D. 24,640 mph