Prove that when x > 1, a triangle with side lengths a = x2 − 1, b = 2x, and c = x2 + 1 is a right triangle. use the pythagorean theorem and the given side lengths to create an equation. use the equation to show that this triangle follows the rule describing right triangles. explain your steps.

First we need to see the pythagorean formula which is

Substituting the given values of a,b , we will get

And

So we have

So the given triangle is a right triangle .

c

step-by-step explanation:

b. 1.25 hr

step-by-step explanation:

if you have a constant speed of 60 mph, then you have a ratio between 60 mi. to 1 hr. dividing both sides by 60 we get the ratio

1 mi. to

then mult. both sides by 75 we get the ratio

75 mi. to

simplifying we get

75 mi. to

or 1.25 hr.