Solve the system by the substitution method.xy - x2 = -20x - 2y = 3
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use the graph of the rational function f(x) to complete the statement.As x?-2+, f(x)? 
. 
A. 0 B. -? C. -2 D. +?
Mathematics
Solve the problem.If the average cost per unit C(x) to produce x units of plywood is given by 
what is the unit cost for 40 units?
A. $22.50 B. $0.75 C. -$7.50 D. $12.86
Mathematics
Find the derivative of the function.
?
?
A. 
B. 
C. 
D. 
E. 
Mathematics
Multiply using FOIL. Assume all variables have nonnegative values.(3 + 
)(6 - 
)
A. 18 - 3
- d
B. 18 + 3
+ d
C. 18 - 3
+ d
D. 18 + 3
- d
Mathematics