SOLUTION: For what values of the variable does the following expression make sense: a. √8c b. √−10b

Question 1134252: For what values of the variable does the following expression make sense:
a. √8c
b. √−10b
Found 2 solutions by Boreal, MathLover1:
Answer by Boreal(15235) (Show Source): You can put this solution on YOUR website!
sqrt(8c) is valid for c>=0
sqrt (-10b) is valid for b<=0
Answer by MathLover1(20849) (Show Source): You can put this solution on YOUR website!
For what values of the variable does the following expression make sense:
a.
The domain of the square root function is (, ).
so, will make sense only if
b.
if is negative or , than will be positive and will make sense
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