A ladder 17 feet long is leaned up against a house, reaching a height of 15 feet. How far from the house is the base of the ladder?
A.2ft
B.22.7
C.6ft
D.8ft

8 feet, D

Step-by-step explanation:

To solve this, use the Pythagorean Theorem. It states:

where A and B are the sides of a triangle and C is the triangle's hypotenuse.

The 17 foot ladder in this situation is your hypotenuse, and you have one side of the triangle: 15.

15 squared = 225

17 squared = 289

solving for b squared, we get

taking the square root of 64, you get 8 feet, the distance between the house and the base of the ladder.

answer: ok

step-by-step explanation:

hello :

by applying the distributive property :

6 × 4.3 = 6 × ( 4 + 0.3 )

            =   (6 ×   4) + (6 ×   0.3)

            = 24 + 1.8

6 × 4.3 = 25.8