Here the given expression is

We need to find the value of y when x =3 . So we substitute the value of x in the given expression.

So when x=3, y=0.4 and that's the required answer.
Answer:
Step-by-step explanation:
Given : The density of a certain solid is
kg/mm³.
To find : Convert this density into kilograms per cubic meter ?
Solution :
We know that,

or 
So, 

Converting
kg/mm³ into kg/m³,
Therefore,
Answer:
(1,-4)
Step-by-step explanation:
-5+1=-4
3+-2=1
A 3x3 square has a total of 9 markers in the array, with an extra one as a left over that doesn't fit into the array. (remember, squares are considered rectangles too)