Solve the problem.The psychology lab at a college is staffed by 7 male doctoral students, 9 female doctoral students, 10 male undergraduates, and 6 female undergraduates. If a person is selected at random from the group, find the probability that the selected person is an undergraduate or a female.
A. 
B. 
C. 
D. 
Answer: B
Mathematics
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Find all values of ? with the given trigonometric function value.sin ? = - 
A. 60° + n ? 360°; 300° + n ? 360°, n any integer B. 210° + n ? 360°; 330° + n ? 360°, n any integer C. 150° + n ? 360°; 210° + n ? 360°, n any integer D. 60° + n ? 360°; 120° + n ? 360°, n any integer
Mathematics
Perform the indicated operation and simplify. Assume all variables in the radicand are greater thanor equal to zero.(
+ 
)(
- 
)
A. 
+ 
+ 
- 17
B. 
+ 
- 
+ 17x
C. 
+ 
+ 
+ 17
D. 
+ 
- 
- 17x
Mathematics
Add.(-0.1) + (-2.8) + (-0.5)
A. 2.2 B. 3.2 C. -3.4 D. 2.4
Mathematics
Differentiate.
Mathematics