Subtract.(12x + 25xy - 9y) - (18x - 21xy - 16y)
A. -13x + 6xy + 25
B. 47xy
C. -6x - 46xy - 25y
D. -6x + 46xy + 7y
Answer: D
Mathematics
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Find an equation of the line that contains the given point and is parallel to the given line.y = -4x, (4, 4)
A. y = - 4x - 20
B. y = - 4x + 20
C. y = - 
x - 5
D. y = 4x - 20
Mathematics
Solve for x.
? 5
A. 
? x ? 
B. x ? 
or x ? 
C. 
? x ? 
D. x ? 
or x ? 
Mathematics
Find an equation for the indicated ellipse.
A. 
+ 
= 1
B. 
+ 
= 1
C. 
+ 
= 1
D. 
- 
= 1
Mathematics
Multiply. Change any mixed number to an improper fraction before multiplying.3
× 3 × 
A. 6
B. 9
C. 2
D. 9
Mathematics