Add or subtract. Assume all variables represent positive real numbers.
- 6
+ 2
A. -4
B. -31
C. -4
D. -31
Answer: D
Mathematics
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A. 
B. 
C. 
D. 
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Make the indicated conversion within units of time.Convert 7 days to minutes.
A. 10,080 minutes B. 604,800 minutes C. 25,200 minutes D. 168 minutes
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Solve the formula for the specified variable.S = 2?rh + 2?r2 for h
A. h = 
B. h = 2?(S - r)
C. h = S - r
D. h = 
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Graph the system of inequalities.x2 + y2 ? 36x2 + y2 ? 4
A. 
B. 
C. 
D. no solution
Mathematics