Calculate the arc length of the indicated portion of the curve r(t).Following the curve r(t) = 5ti + (12 cos t)j + (12 sin t)k in the direction of increasing of arc length, find the point that lies 104? units away from the point where 
A. (40?, 0, 0)
B. (40?, 12, 0)
C. (40?, 0, 12)
D. (40, 12, 0)
Answer: B
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Graph the exponential function and state the domain and range.y = 4x
A. Domain: (0, ?), Range: (0, ?) 
B. Domain: (-?, 0), Range: (-?, 0)
C. Domain: (-?, ?), Range: (0, ?)
D. Domain: (-?, ?), Range: (-?, 0) 
Solve the problem.An object is propelled vertically upward from the top of a 288-foot building. The quadratic function 
models the ball's height above the ground, 
in feet, t seconds after it was thrown. How many seconds does it take until the object finally hits the ground? Round to the nearest tenth of a second if necessary.
A. 2 seconds B. 9.8 seconds C. 1.8 seconds D. 4 seconds
Divide.
A. x - 6 + 
B. x - 6 + 
C. x + 6 + 
D. x + 18 + 
Insert <, >, or = between the pair of numbers to form a true statement.0.744 _____ 0.74400
A. < B. > C. =