Find the trigonometric function value of angle ?. Use a calculator if necessary.cos ? = 
, with ? in quadrant IVFind sin ?.
A. - 
B. - 
C. - 
D. - 
Answer: B
Mathematics
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Find the exact value of the expression.cos 
cos 
+ sin 
sin 
A. 1
B. 
C. 
D. 
Mathematics
Provide an appropriate response.When the first-in, first-out inventory method is used, inventory values are based on the average cost of each inventory item.
A. True B. False
Mathematics
Find all complex solutions.x4 - 49 = 0
A. 
B. ± 
, ± i
C. 
, i
D. ± 
Mathematics
Solve the problem.Suppose a cost-benefit model is given by 
where y is the cost in thousands of dollars for removing x percent of a given pollutant. Find the cost of removing 35% to the nearest dollar.
A. $2500 B. $1346 C. $875 D. $538
Mathematics