Solve the problem.A baseball player hit a baseball with an initial velocity of 190 feet per second at an angle of 40° to the horizontal. The ball was hit at a height of 5 feet off the ground. Find parametric equations that describe the motion of the ball as a function of time. How long is the ball in the air? When is the ball at its maximum height? What is the horizontal distance the ball traveled?
A. x = 145.54t; y = -16t2 + 122.17t + 5;
7.676 sec;
3.818 sec;
1117.165 feet
B. x = 145.54t; y = -16t2 + 122.17t + 5;
15.353 sec;
3.818 sec;
2234.476 feet
C. x = 145.54t; y = -16t2 + 122.17t + 5;
7.676 sec;
3.818 sec;
1880.513 feet
D. x = 145.54t; y = -16t2 + 122.17t + 5;
7.594 sec;
3.818 sec;
1105.231 feet
Answer: A
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A. 128.70 B. -88.44 C. 102.86 D. 47.10
Solve the problem.A projectile is fired from a cliff 500 feet above the water at an inclination of 45° to the horizontal, with a muzzle velocity of 70 feet per second. The height h of the projectile above the water is given by 
where x is the horizontal distance of the projectile from the base of the cliff. Find the maximum height of the projectile.
A. 538.28 ft B. 614.84 ft C. 38.28 ft D. 76.56 ft
Solve the problem.An experienced bank auditor can check a bank's deposits twice as fast as a new auditor. Working together it takes the auditors 12 hours to do the job. How long would it take the experienced auditor working alone?
A. 24 hr B. 18 hr C. 36 hr D. 12 hr
Find a rectangular equation for the plane curve defined by the parametric equations.x = 3 tan t, y = 2 sec t; 0 ? t ? 2?
A. y = x2 - 9; for x in -3 ? x ? 3
B. y = 3
; for x in -? < x < ?
C. 
- 
= 1; for x in -? < x < ?
D. 
+ 
= 1; for x in -? < x < ?