21/25, and since this fraction cannot be simplified, it is already in it's simplest form.
Sylvia is correct because a right triangle needs to have 1 right angle and 2 acute angles, it cannot have more than 1 right angle.
Answer:
the quickest way would be to "complete the square"
on x^2 + 5x - 7
you will end up with (x+2.5)² = 13.25
or
y = (x+2.5)²-13.25
the vertex
VERTEX: (-2.5,-13.25)
Solution/X-Intercepts: -6.14 AND 1.14
Step-by-step explanation:

Let's find the value of x :
According to given picture, the angles (x + 75)° and (x + 125)° forms Co interior angle pair.
so,
hence, value of x = -10°
Using y2-y1/x2-x1 m=24/6 so the slope is +4