Aladder is leaning against a building so that the distance from the ground to the top of the ladder is 1 foot less than the length of the ladder. find the length of the ladder if the distance from the vottom of the ladder to the building is 3 feet.

5

Step-by-step explanation:

Whenever there are problems that have ladders leaning on a buildings, you have to know that is makes a right triangle.

3^2 + (x-1)^2 = x^2

(x-1)(x-1) = x^2 - 2x + 1

9 + x^2 -2x +1 = x^2

-x^2                    -x^2

-2x +10 = 0

-10           -10

-2x=-10

-2x/2   -10/2

x=5 (the length of the ladder)

the multiples of 15 are 15, 30,45, 60, 75, 90, 105, 120, 135, 150, 165, 180, 195,   210, 225, 240, 255, 270, 285, 300, 315, 330, 345, 360, 375,   390, 405, 420, 435, 450, 465, 480, 495, 510, 525, 540, 555, 570, 585, 600, 615, 630, 645, 660, 675, 690, 705, 720, and 735.

the factors of 15 are 1, 3, 5, and 15.

hope that , fam!

-une, your fren : )

answer: b.36 feet

step-by-step explanation: