Simplify the absolute value expression.-
A. does not exist
B. 1
C. -1
D. 0
Answer: D
Mathematics
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Find the exact value of the trigonometric function. Do not use a calculator or tables.tan 
A. - 
B. -1
C. - 
D. 1
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Simplify the expression. Assume that variables represent nonzero numbers.
2
A. 
B. 
C. 
D. 
Mathematics
Use a graphing utility to find the equation of the line of best fit. Round to two decimal places, if necessary.
A. y = 55.3 B. y = 2.5x + 50.4 C. y = 3x + 50 D. y = 54
Mathematics
Add the numbers.9 + 7 + 6 + 7 + 7
A. 37 B. 34 C. 39 D. 36
Mathematics