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 21°. At the instant the ball is hit, an instantaneous gust of wind blows against the ball, adding a component of -14.4i (ft/sec) to the ball's initial velocity. How high does the baseball go? Round your answer to the nearest tenth.
A. 48.4 ft
B. 40.7 ft
C. 38.7 ft
D. 36.6 ft
Answer: C
Mathematics
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Rewrite using a positive exponent. Evaluate, if possible.
A. 
B. x-6
C. 6x
D. x6
Mathematics
List the improper fractions in the group.
, 
, 
, 
, 
A. 
, 
, 
, 
B. 
, 
, 
C. 
, 
D. 
, 
, 
, 
, 
Mathematics
Solve the problem.The algebraic expression 
describes the duration of a storm, in hours, whose diameter is d miles. Use a calculator to determine the duration of a storm with a diameter of 8 miles. Round to the nearest hundredth.
A. 0.42 hr B. 0.2 hr C. 22.63 hr D. 1.58 hr
Mathematics
Select the correct graph of the inequality.
?
?
A. ?
B. ?
C. ?
D. ?
E. ?
Mathematics