Use half-angle identities to find the exact value of the expression.sec 
A. 
B. 
C. -
D. -
Answer: B
Mathematics
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Use the rules for exponents to rewrite the expression and then evaluate the new expression. 
A. -14 B. -5 C. 0 D. 1
Mathematics
Evaluate the expression.271/3
A. 9 B. 81 C. 243 D. 3
Mathematics
Find the sum or difference.0.06 + (-6.971)
A. -7.031 B. -6.911 C. 0.418 D. -6.931
Mathematics
Evaluate the expression without a calculator. Hint: Change decimals to fractions.
A) 10
B) 9
C) 8
D) 13
E) 6
Mathematics