Write the complex number in trigonometric form, using degree measure for the argument.-4
+ 4i
A. 8(cos(-135°) + i sin(-135°))
B. 8(cos 135° + i sin 135°)
C. 8(cos(-45°) + i sin(-45°))
D. 8(cos 45° + i sin 45°)
Answer: B
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Find the direction angle of the vector v. Round to the nearest tenth if necessary. v = 8i - 8j
A. 330° B. 315° C. 225° D. 135°
Solve the problem.A shipping company has determined that their drivers in Montana on average travel 65 miles on a single delivery route for mail order products. This is five times the distance of an average route for their drivers in New Jersey. How far, on average, is the route in New Jersey?
A. 325 mi B. 65 mi C. 13 mi D. 130 mi
Find the exact value of the expression.cos 
A. 
B. 
C. 
D. 
Find the sum of the indicated terms of the geometric sequence.
?
?
A. s = 65,535 B. s = 65,538 C. s = 65,532 D. s = 65,541 E. s = 262,140