Solve the system of equations by the substitution method. Check your solutions. For any dependent equations, write your answer in the ordered pair form. x + y = 92x + 2y = 18
A. ?
B. {(0, 0)}
C. {(7, 2)}
D. {(x, 9 - x)}
Answer: D
Mathematics
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Determine if the two lines are parallel, perpendicular, coinciding, or only intersecting.2x - 4y = 2y = 
x - 
A. coinciding B. intersecting C. perpendicular D. parallel
Mathematics
Solve the equation.x2/3 + 4x1/3 - 5 = 0
A. {-125, 1} B. {-1, 5} C. {-1, 125} D. {-5, 1}
Mathematics
Solve.Elissa wants to set up a rectangular dog run in her backyard. She has 34 feet of fencing to work with and wants to use it all. If the dog run is to be x feet long, express the area of the dog run as a function of x.
A. A(x) = 19x2 - x B. A(x) = 18x - x2 C. A(x) = 17x - x2 D. A(x) = 16x - x2
Mathematics
Multiply.
2
A. c2 + 
B. 2c + 
c + 
C. c2 + 
c + 
D. c2 + 
Mathematics