Use a half-angle formula to find the exact value of the expression.cos 
A. - 
B. - 
C. 
D. 
Answer: C
Mathematics
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Find the amount of sales tax or tax rate and the total cost. Round money answers to the nearest cent if necessary.Amount of sale: $980 Tax rate: 6
%
A. $637.00, $1617.00 B. $73.50, $1053.50 C. $53.90, $1033.90 D. $63.70, $1043.70
Mathematics
Find fractional notation for the ratio. You need not simplify.In this rectangle, find the ratios of length to width and of width to length.
A. 
; 
B. 
; 
C. 
; 
D. 
; 
Mathematics
Find the indicated probability.Find the probability that a number less than 7 is obtained when a fair die is rolled.
A. 1
B. 
C. 0
D. 
Mathematics
Add or subtract.
- 
A. 
B. 
C. 
D. 
Mathematics