Question

a moving company uses a plank on a staircase from the top of the staircase loset to the lenth in inches of the plankto the floor to allow them to move a heavy desk. as shown in the figure below each stair is 7in high and 10 in deep which of the following is c

Answer 1

closest to the lenth of the plank?

Answer 2

How many stairs are there or what is the total height the ramp has to cover?

Answer 3

idk that all it ask

Answer 4

I guess they want you to see that x is the length of the plank for a single stair, so if you had ten stairs, you would have a length of 10 x.

you can get x from x^2 = 10^2 + 7^2.

after adding these squares get x from the square root of the total x=sqrt(149). That's the length of the needed plank for each stair.