Add or subtract. Assume that variables represent nonnegative values.-2
+ 5
- 
- 4
A. -7
+ 19
B. 7
- 19
C. -7
- 19
D. 7
+ 19
Answer: C
Mathematics
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Rationalize the denominator.
A. 
B. 
C. -1
D. 
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Find a point-slope form equation for the line through the point with the given slope.(5, -6), m = 4
A. y + 6 = 4(x - 5) B. y - 6 = 5(x - 5) C. y + 6 = -4(x - 5) D. y + 6 = 5(x + 5)
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f
and 
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A. ?, -? B. -?, -? C. -?, ? D. ?, ?
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