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 fan in the bleachers at Wrigley Field throws an opposing player's home run baseball back onto the playing field. Assume that the fan is 30 feet above the field and that the ball is launched at an angle of 27°. When will the ball hit the ground if its initial speed is 22 ft/sec? Round your answer to the nearest tenth.
A. 3.7 sec
B. 1.1 sec
C. 2.0 sec
D. 1.7 sec
Answer: D
Mathematics
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Graph the inverse function.y = sec-1 2x
A. 
B. 
C. 
D. 
Mathematics
Solve.A 20-foot pole is supported by two wires that extend from the top of the pole to points that are each 16 feet from the base of the pole. Find the total length of the two wires.
A. 72 ft
B. 8
ft
C. 4
ft
D. 1312 ft
Mathematics
Solve the problem.The output voltage for an a.c. generator is approximated by v = 156 cos (120?t - 
). Find the smallest positive value of t for which the output is 82 volts. (Use 3.1416 as an approximation for 
A. t = 0.0120 B. t = 0.0055 C. t = 0.0045 D. t = 0.0110
Mathematics
Simplify.(x6y)3
A. x18y B. x9y4 C. x18y3 D. x9y
Mathematics