Evaluate or simplify the given expression.cos-1 
A. 
B. - 
C. 
D. 
Answer: A
Mathematics
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Simplify.
- 
+ 
A. - 
B. 
C. - 
D. 
Mathematics
Multiply and reduce answers to lowest terms. Write improper fractions as whole or mixed numbers.48 ? 
A. 
B. 35
C. 
D. 40
Mathematics
Solve.On a biology test, a student got 25 questions correct but did not pass. On a second attempt, the student got 37 questions correct. What was the percent of increase?
A. 32.4% B. 48% C. 12% D. 52%
Mathematics
Use the order of operations to simplify the expression.
÷ 
? 
A. 
B. 
C. 
D. 
Mathematics