SOLUTION: A 30-foot ladder is leaning against a house, with the foot of the ladder 8 feet from the house. If the foot of the ladder is pulled 7 more feet from the house, how far down the sid

Algebra ->  Probability-and-statistics -> SOLUTION: A 30-foot ladder is leaning against a house, with the foot of the ladder 8 feet from the house. If the foot of the ladder is pulled 7 more feet from the house, how far down the sid      Log On


   



Question 726211: A 30-foot ladder is leaning against a house, with the foot of the ladder 8 feet from the house. If the foot of the ladder is pulled 7 more feet from the house, how far down the side of the house will the ladder move (to the nearest foot)?
Answer by richwmiller(17219) About Me  (Show Source):
You can put this solution on YOUR website!
8^2+x^2=30^2,28.91
15^2+y^2=30^2
x=28.9137, y=25.9808, z=2.9329
x-y=2.9329
about 3 feet