m<CAE = 90: definition of perpendicular
p.s. ty for this!
For the expression

, the coefficient of the x² term is 1.
Answer:
1. The two numbers are 4 and 8.
Step-by-step explanation:
1) variables: x and y
2) x + y = 12, y - x = 4
3) graph using desmos or another graphing calculator
4) the solution is x = 4, y = 8, or 4 and 8. This means that 4 and 8 can be added to equal 12, and the difference between them is 4.
That would be a right-angled triangle.