Use a product-to-sum identity to rewrite the expression.cos 16° cos 36°
A. 0.5(cos(-20°) - cos(52°) )
B. 0.5(sin(52°) - sin(-20°) )
C. 0.5(cos(52°) + cos(-20°) )
D. 0.5(sin(52°) + sin(-20°) )
Answer: C
Mathematics
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Use the Rule of 78 to find the amount of unearned interest for the loan paid in full before the date of maturity.Finance charge: $332Total number of payments: 25Remaining number of payments, when paid in full: 4
A. $10.22 B. $11.07 C. $6.13 D. $6.64
Mathematics
Find the exact value of the expression without using a calculator or table.sin-1 
A. 
B. 
C. 
D. 
Mathematics
Determine the coordinates of the indicated point on the graph. 
I
A. (-4, -5) B. (-4, 5) C. (-5, -4) D. (-5, 4)
Mathematics
Write the expression in the form a + bi.
A. 
- 
i
B. 
- 
i
C. - 
i
D. - 
- 
i
Mathematics