Perform the indicated operation. Assume that variables represent positive numbers.
- 4
A. 9
B. 5
- 4
C. 21
D. -3
Answer: D
Mathematics
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Perform the indicated operation. Be sure to simplify your answer.
+ 
+ 
A. 
B. 
C. 
D. 
Mathematics
Multiply.× 
A. 3 B. 7.099 C. 7 D. 3.2934
Mathematics
Solve the problem. Leave your answer in polar form.z = 5(cos 200° + i sin 200°)w = 4(cos 50° + i sin 50°)Find 
.
A. 
(cos 40° + i sin 40°)
B. 
(cos 150° + i sin 150°)
C. 
(cos 40° + i sin 40°)
D. 
(cos 150° + i sin 150°)
Mathematics
Solve the problem.The polynomial 
measures the concentration of a dye in the bloodstream x seconds after it is injected. Does the concentration increase between 11 and 12 seconds?
A. Yes B. No
Mathematics