Solve.The force needed to keep a car from skidding on a curve varies jointly as the weight of the car and the square of the car's speed, and inversely as the radius of the curve. If a force of   is needed to keep an  car traveling at 20 mph from skidding on a curve of radius  what force would be required to keep the same car from skidding on a curve of radius 

style="vertical-align: -4.0px;" /> at  Round your answer to the nearest pound of force.



A. 29,158 pounds

B. 28,620 pounds

C. 28,588 pounds

D. 28,456 pounds

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Answer: C

Mathematics

Evaluate.

A. -8 B. 1 C. 0 D. undefined

A lighthouse on an island is located at the origin of a coordinate system. East points to the positive x-axis, and north points to the the positive y-axis. Find the bearing of a ship located at the given point. Round the angle measure to the nearest degree where necessary.(5, -5)

A. N 45° E B. S 45° W C. N 45° W D. S 45° E

Write the quotient in standard form.

A. 1 + i B. 1 + 2i C. 1 - i D. -1 + i

Solve the problem.It requires 1 cups of concentrate per quart of water to make a certain juice. How many cups are needed to make 9 quarts of juice?

A. 145 cups
B. 16 cups
C. 48 cups
D. 5 cups