Use a half-angle formula to find the exact value of the expression.cos 
A. - 
B. 
C. - 
D. 
Answer: B
Mathematics
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Provide an appropriate response.Change 
to an improper fraction.
A. 
B. 
C. 
D. 
Mathematics
Use rational equations to solve the problems.After deductions, Mark's net pay is $757.98. If the total of the deductions was 33% of his gross two-week pay, then what was his gross two-week salary?
A. $2,096.90 B. $2,396.90 C. $2,196.90 D. $2,296.90
Mathematics
Subtract the polynomials.(-5x6 + 5x8 + 4 + 6x7) - (5 + 8x7 + 7x8 + 3x6)
A. -2x8 - 2x7 - 8x6 - 1 B. 12x8 + 14x7 - 2x6 - 1 C. 12x8 + 14x7 - 2x6 + 9 D. -2x8 + 14x7 - 2x6 + 9
Mathematics
Make the indicated conversion within metric units of mass.63 kilograms to grams
A. 63,000 g B. 0.063 g C. 0.63 g D. 6300 g
Mathematics