Solve the problem.If the average cost per unit C(x) to produce x units of plywood is modeled by C(x) = 
,what is the unit cost for 40 units?
A. $22.50
B. $0.75
C. $4.00
D. $12.86
Answer: D
Mathematics
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Factor the trigonometric expression.16 csc2? + 24 csc ? + 9
A. (4 csc ? - 3)2 B. (4 csc ? + 3)2 C. (16 csc ? + 1)(csc ? + 9) D. (4 csc2? + 3)(4? - 3)
Mathematics
Convert the units using unit fractions.20 oz = 
lb
A. 320
B. 200
C. 1
D. 2
Mathematics
Graph the rational function and find the intercepts.f(x) = 
A. No x-intercept. y-intercept: 
B. No x-intercept. y-intercept: 
C. No x-intercept. y-intercept: - 
D. x-intercept = 0. y-intercept: - 
Mathematics
Solve the problem.If the sides of a square are increased by 2 meters, the area becomes 81 square meters. Find the length of a side of the original square.
A. 11 m B. 9 m C. 2 m D. 7 m
Mathematics