Simplify the expression. Assume all variables represent positive real numbers.
- 
A. -1
B. - 
C. - 2
D. -2
Answer: D
Mathematics
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This double-bar graph shows the number of male (M) and female (F) athletes at a university over a four-year period. Answer the question.
What percentage of all students involved in athletics in Year 4 was male? (Round to the nearest percent.)
A. 41% B. 68% C. 35% D. 59%
Mathematics
Evaluate the following expression using a unit circle.cos 
A. 1
B. 0
C. -1
D. 
Mathematics
Multiply and simplify any radicals in your answer. Assume that all variables represent positive real numbers.(
+ 
)(
- 
)
A. 
+ 
+ 
+ 11
B. 
+ 
- 
- 11
C. 
+ 
+ 
- 11
D. 
+ 
- 
+ 11
Mathematics
Add. Write a mixed numeral for the answer.4
+ 1
A. 5
B. 5
C. 6
D. 5
Mathematics