Find the trigonometric form of 
.
A. 
B. 
C. 
D. 
E. 
Answer: A
Mathematics
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Use a half-angle formula to find the exact value of the expression.cos 
A. 
B. - 
C. - 
D. 
Mathematics
Solve the equation for the specified variable.V = 
Bh for h
A. h = 
B. h = 
C. h = 
D. h = 
Mathematics
Answer the question.How would you express the product of two numbers, r and s?
Fill in the blank(s) with the appropriate word(s).
Mathematics
Solve the problem.A merchant has coffee worth $30 a pound that she wishes to mix with 80 pounds of coffee worth $80 a pound to get a mixture that can be sold for $40 a pound. How many pounds of the $30 coffee should be used?
A. 160 lb B. 400 lb C. 200 lb D. 320 lb
Mathematics