Solve the problem.A formula used to determine the velocity v in feet per second of an object (neglecting air resistance) after it has fallen a certain height is 
where g is the acceleration due to gravity and h is the height the object has fallen. If the acceleration g due to gravity on Earth is approximately 32 feet per second, find the velocity of a bowling ball after it has fallen 50 feet. (Round to the nearest tenth.)
A. 3200 ft per sec
B. 10.0 ft per sec
C. 40.0 ft per sec
D. 56.6 ft per sec
Answer: D
Mathematics
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Find the length of the curve.x = 7 sin t - 7t cos t, y = 7cos t + 7t sin t, 0 ? t ? 
A. 
?2
B. 
?2
C. 
?
D. 
?2
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Graph the equation and give the coordinates of the vertex.y = -4x2 - 40x - 97
A. (5, 3)
B. (-3, 5)
C. (3, -5)
D. (-5, 3)
Mathematics
Evaluate the integral.
A. 
sin-1 
B. 9 cos-1 
C. sin-1 
D. cos-1 
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The sequence is defined recursively. Write the first four terms of the sequence.a1 = 4 and an = 3an-1 + 5 for n ? 2
A. 4, 17, 41, 113 B. 4, 17, 56, 173 C. 4, 7, 16, 43 D. 4, 12, 36, 108
Mathematics