Question

a 30 foot ladderleans against a house. the foot of the ladder is 7 feet away from the house.how high up the house does the ladder reach to the nearest tenth?

Answer 1

pythagorean theorem

Explanation:

a^2+b^2=c^2

7^2+b^2=30^2

14+b^2=900

subtract 14 from both sides

b^2=886

then take the square root of 886

b=29.8

The ladder reaches 29.8 feet up the house