Solve the equation and check.
A. x = 56
B. x = 58
C. x = 29
D. x = 57
E. x = 16
Answer: A
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Sketch the graph of the parametric equations. Then set up the appropriate integral to find the length of the curve and use a computer to evaluate it.x = 3 sin t, y = 5 cos t, 0 ? t ? 2?
A. L = 2?
B. L = 12.57
C. L = 28.27
D. L = 25.53
A stone is thrown straight up from the roof of an 48-ft building. The distance (in feet) of the stone from the ground at any time t (in seconds) is given by 
.
?Sketch the graph ofh. When is the stone rising, and when is it falling? If the stone were to miss the building, when would it hit the ground?
?
A. ?
Rising in the time interval (0, 1);
falling in the time interval (1, 3);
when t = 3 sec
B. ?
Rising in the time interval (0, 1);
falling in the time interval (1, 3);
when t = 3 sec
C. ?
Rising in the time interval (3, -1);
falling in the time interval (-1, 1);
when t = 1 sec
Determine the number by which both sides of the equation must be multiplied or divided, as specified, to obtain just x on the left side.-x = 0.12; divided
A. 0.12
B. 
C. 
D. -1
Solve the equation by using a graphing utility.
?
?
A. 
B. 
C. 
D. 
E. 