Find the absolute value.
A. 
B. 0
C. 
D. - 
Answer: C
Mathematics
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Solve the problem.The table lists the average composite scores on a national entrance exam for selected years.
Evaluate f(1989).
A. 130.9 B. 131.7 C. 131.5 D. 130.5
Mathematics
Solve the system by the substitution method.7
- y2 = 21 
A. 
B. 
C. 
D. 
Mathematics
Use a calculator to solve the equation on the interval 0 ? ? < 2?. Round the answer to two decimal places.5 tan ? - 3 = 0
A. 0.54, 3.68 B. 0.54, 2.60 C. 1.03, 4.17 D. 0.54, 5.74
Mathematics
Find the reference angle of the given angle.
A. 
B. 
C. 
D. 
Mathematics