Solve the problem.A musician plans to perform 5 selections for a concert. If he can choose from 7 different selections, how many ways can he arrange his program?
A. 35
B. 21
C. 16,807
D. 2520
Answer: D
Mathematics
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Find the absolute value of the complex number.-5i
A. -5 B. 5 C. 5i D. 25
Mathematics
Provide an appropriate response. Simone was pleased with her service at a local restaurant where she had entertained some friends for dinner. She left a tip of $44 for a bill of $195.55. What tip rate did she leave for the service?
A. 18.4% B. 5.4% C. 4.44% D. 22.5%
Mathematics
Find the interval(s) where 
is continuous.
a. [ 0, ?) b. [ –3. 3] c. (–?, ?) d. [–2,3]
Mathematics
Find the exact value of the expression without using a calculator.sin 
cos 
+ cos 
sin 
A. 
B. 
C. 
D. 1
Mathematics