Hello!
since this is a 45-45-90 degree triangle the hypotenuse is a

where a is one of the legs
So the answer is 5

Hope this helps!
Answer:
8<em>x</em> + 25
Step-by-step explanation:
In the second photo.
Answer:
-6<x<-9
Step-by-step explanation:
if x+9<0 and 2x>-12
x<-9
x>-6
X is smaller than -9 but greater than -6.
The solution is -6<x<-9
3x + 2y = 12
(x, y) = (__, 0)
3x + (2 x 0) = 12
3x + 0 = 12
3x = 12
x = 4
(4, 0)