Calculate the arc length of the indicated portion of the curve r(t).r(t) = (7cos3 8t)j + (7sin3 8t)k; 
? ? t ? 
?
A. 
B. 
C. 0
D. 21
Answer: B
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Solve the absolute value equation or indicate that the equation has no solution.
- 3 = -11
A. 
B. 
C. 
D. ?
Solve the problem.The maintenance crew at an amusement park has to fence in a triangular area. One side is 52 yards long, and a second side is 50 yards long. If the crew has 588 feet of fencing, how many yards of fencing will be left over for the third side?
A. 486 yd B. 298 yd C. 94 yd D. 282 yd
Find the fifth term and the nth term of the geometric sequence whose initial term, a, and common ratio, r, are given.a = 
; r = 
A. a5 = 7776, an = 6n
B. a5 = 6
, an = 6n/2-1
C. a5 = 1296
, an = 6n-1/2
D. a5 = 36
, an = 6n/2
Add the real numbers. Write any improper fraction as a whole or mixed number where appropriate.7
+ 2
A. 9
B. 10
C. 9
D. 9