Solve the problem. Unless stated otherwise, assume that the projectile flight is ideal, that the launch angle is measured from the horizontal, and that the projectile is launched from the origin over a horizontal surfaceA baseball is hit when it is 2.1 ft above the ground. It leaves the bat with an initial velocity of 
at a launch angle of 22°. At the instant the ball is hit, an instantaneous gust of wind blows against the ball, adding a component of -13.3i (ft/sec) to the ball's initial velocity. How high does the baseball go? Round your answer to the nearest tenth.
A. 43.0 ft
B. 47.1 ft
C. 52.4 ft
D. 45.1 ft
Answer: D
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Solve the problem.A carousel has a radius of 17 feet and takes 25 seconds to make one complete revolution. What is the linear speed of the carousel at its outside edge? Express the answer in feet per second. If necessary, round the answer to two decimal places.
A. 4.27 feet per second B. 9.24 feet per second C. 0.68 feet per second D. 106.81 feet per second
Find the numerical value of the expression for the given value.
, x = -4
A. - 
B. - 
C. 
D. - 
A map of a state includes county lines. A new map of a particular county is to be drawn using the state map so that the new county map is four times the area of the county on the state map as shown. Explain how this might be accomplished.
Multiply.
× 
A. 
B. 
C. 
D. 