Plz answer right
1 answer:
You might be interested in
Let's assume the number of students in the class be x.
Given that, Two-thirds of students in a class are girls.
So, number of girls
Now ne-half of the girls wear glasses. So, one-half of is
=
= Cancel out 2 from both numerator and denominator.
So, one third of the students are girls who wear glasses.
So, the correct choice is E.
The domain of a(x) is all of R. The domain of b is the range where 
. We can calculate the composition boa by changing in the expression for b, every x with a(x). Hence, boa(x)=
=
. Again for a function with a root to be defined, we need that the expression under the square root has to be positive. Hence, 3x-3
0.Thus, the set where this holds is 
. This is also the domain of the function boa(x).