Sandy is working with a carpenter to frame a house. they are using 8-foot-long boards, but each board must be cut to be 7 feet inches long. how much is cut off each board?

i suppose it should be (y=2x-5)

step-by-step explanation:

step-by-step explanation:

this can be solved first with pythagorean theorem, which tells us to square both legs of the triangle and sum it. this will be equal to the square of the hypotenuse.

the hypotenuse is the side "opposite" the 90 degree angle, which is x.

so we can write using pythagorean theorem,

simplifying:

to further simplify this radical, we need to use the property  

thus

answer: the answer for that is 22/3