Evaluate -x for the given value of x.x = 0
A. -6
B. -1
C. 0
D. 1
Answer: C
Mathematics
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Calculate the arc length of the indicated portion of the curve r(t).Following the curve r(t) = 12ti + (5 cos t)j + (5 sin t)k in the direction of increasing of arc length, find the point that lies 65? units away from the point where 
A. (60?, -5, 0) B. (60?, 0, -5) C. (60, -5, 0) D. (60?, 0, 0)
Mathematics
Find the length of an arc intercepted by a central angle ? in a circle of radius r. Round your answer to 1 decimal place.r = 16.05 cm.; ? = 
? radians
A. 67.2 cm B. 33.6 cm C. 134.5 cm D. 21.4 cm
Mathematics
Simplify.-2 + 7 - (-4) - 20 + 16
A. -9 B. 5 C. 45 D. 37
Mathematics
Solve and write interval notation for the solution set.?x? ? 16
A. [-16, 16] B. (-?, -16] C. (-?, -16] ? [16, ?) D. (-?, 16]
Mathematics