Solve the problem.A projectile is fired with an initial velocity of 550 feet per second at an angle of 45° with the horizontal. In how many seconds will the projectile strike the ground? (Round your answer to the nearest tenth of a second.) The parametric equations for the path of the projectile are x = (550 cos 45°)t, and y = (550 sin 45°)t - 16t2.
A. 24.3 sec
B. 29.1 sec
C. 20.9 sec
D. 32.4 sec
Answer: A
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A. 
B. 
C. - 
D. 
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