Question
If r is a positive number and s is a negative number, all of the following must represent positive numbers EXCEPT:
A. -r+s
B. r-s
C. rs^2
D: (rs)^2
A. -r+s
B. r-s
C. rs^2
D: (rs)^2
Answers
Anonymous
if r is positive -r is negative
negative + negative is still more negative
negative + negative is still more negative
Donovan
So the answer is a?
Anonymous
yes