Evaluate without using a calculator by using ratios in a reference triangle.sec 
A. - 
B. -1
C. - 
D. - 
Answer: A
Mathematics
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Write true or false for the statement.The sum of the measures of the angles in a triangle is 90°.
A. True B. False
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Determine whether the improper integral converges or diverges.
A. Diverges B. Converges
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Find the area of the geometric figure.
A. 18 sq in. B. 81 sq in. C. 13 sq in. D. 36 sq in.
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Evaluate the expression using the order of operations. 
+ 
A. -28 B. 0 C. 6 D. 52
Mathematics