Identify the equation as either an identity or not.cot2x = (csc x - 1)(csc x + 1)
A. Identity
B. Not an identity
Answer: A
Mathematics
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Evaluate.
A. 4 B. 2 C. 24 D. 12
Mathematics
A firm's weekly profit (in dollars) in marketing two products is given by
?
?
where 
and 
represent the numbers of units of each product sold weekly. Estimate the average weekly profit when 
varies between 40 and 50 units and 
varies between 45 and 50 units.
A. $12,300
B. $11,100
C. $13,400
D. $21,760
E. $16,450
Mathematics
Solve the problem.The floor of a rectangular room is to be tiled with 
-foot square tiles along a 10-foot wall. How many tiles will be needed along the wall?
A. 10
tiles
B. 3
tiles
C. 31 tiles
D. 30 tiles
Mathematics
Complete the table for the equation.x + 4y = 16
A. 5; 4; 3 B. -3; -4; -5 C. 3; 4; 5 D. 0; 4; 8
Mathematics