Which polynomial identity will prove that 117 = 125 − 8?

Difference of cubes.

Step-by-step explanation:

We are asked to find the identify that will prove that .

Polynomial identities are equations that are true and have general applications in our algebra work.

We can see that 125 equals and 8 equals . So polynomial identity used in our given problem is difference of cubes.

Difference of cubes:

Let us prove that 117=125-8.

We can write right hand side of our given equation as:  

We can see that left hand side of our equation is equal to right hand side of equation. Hence, proved that difference of cubes will prove our equation equal.

linear pair postulates

answer: 7 x 2/5 = 2.8 hours, is your answer. your welcome! : 3

step-by-step explanation: first work out how long it took to hose 1/7 of the lawn which is 2/5 hours. times that by 7 to get the whole lawn.

sorry i don't know the other answer. i didn't learn what a proportional relationship is.