Find all specified roots.Sixth roots of i.
A. cis 
, cis 
, cis 
, cis 
, cis 
, 
B. cis 
, cis 
, cis 
, cis 
, cis 
, 1
C. cis 
, cis 
, cis 
, cis 
, i
D. cis 
, cis 
, cis 
, cis 
Answer: A
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Evaluate the integral by making a substitution (possibly trigonometric) and then applying a reduction formula.
d?
A. sec 
tan 
- ln
+ C
B. sec 
tan 
+ ln
+ C
C. -sec 
tan 
+ ln
+ C
D. -sec 
tan 
+ ln
+ C
Use a tree diagram to find the indicated probability.In the town of Cheraw, a certain type of laptop computer is sold at just two stores. Store A has 38% of the sales, 4% of which are of defective items, and store B has 62% of the sales, 2% of which are of defective items. A person receives one of these laptop computers as a gift. What is the probability it is defective?
A. 0.03 B. 0.014 C. 0.42 D. 0.028
Find the exact value of the composition.cos 
A. 
B. 
C. 
D. 
Solve the problem.A man rode a bicycle for 12 miles and hiked an additional 8 miles. The total time for the trip was 5 hours. If his bicycling rate was 10 miles per hour faster than his hiking rate, then what was his hiking rate?
A. 1 mph B. 3 mph C. 4 mph D. 2 mph