Find the domain of the rational function.f(x) = 
A. all real numbers except 9, 3, 
B. all real numbers except -9, 3
C. all real numbers except 9, 3
D. all real numbers except -9, 3, 
Answer: C
Mathematics
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Find the area.A rectangle has a length of 5 yards and a width of 9 feet. Express the answer in square feet.
A. 67.5 ft2 B. 45 ft2 C. 135 ft2 D. 48 ft2
Mathematics
Find the unknown number in the proportion. Round answer to the nearest hundredth when necessary.
= 
A. x = 14 B. x = 3.5 C. x = 0.07 D. x = 7
Mathematics
Determine whether the system is a nonlinear system or a linear system.
A. linear system B. nonlinear system
Mathematics
Perform the indicated operation. Simplify if possible.
+ 
A. 
B. 
C. 
D. 
Mathematics