Answer:
Look below
Step-by-step explanation:
(a)
The Pythagorean Theorem is a^2+b^2=c^2. In this case. a=10, b=y, and c=2+y.
So, [tex](2+y)^{2}=10^{2}+y^{2}[/tex].
(b)
Using the equation (2+y)^2=10^2+y^2, solve for y.
- (2+y)^2=10^2+y^2
- Square it, 4+4y+y^2=100+y^2
- Subtract y^2, 4+4y=100
- Subtract 4, 4y=96
- Divide by 4, [tex]y=24[/tex].
