3. Find the missing side lengths. Leave your answers as radicals in simplest form. Show your work to support your answer.

b=2(square root of 2) and a=4

Step-by-step explanation:

Since this is a 45-45-90 triangle we know that side b is equal to .

In a 45-45-90 triangle, the hypotenuse is equal to this means in order to find missing side length a, we have to multiply this will give us 4

so the missing side lengths are, and

the answer is y < -3 or   y > 3

-3y > 7 + 2

-3 y > 9

y < -3