Questions on Algebra: Expressions involving variables, substitution answered by real tutors!

Algebra ->  Algebra -> Questions on Algebra: Expressions involving variables, substitution answered by real tutors!     (Log On)
Ad: Algebra Solved!™: algebra software that solves YOUR algebra homework problems with step-by-step help!



Question 170464This question is from textbook Introductory Algebra
: A 10-m ladder is leaning against a building. The bottom of the ladder is 5 m from the building. How high is the top of the ladder?This question is from textbook Introductory Algebra
: A 10-m ladder is leaning against a building. The bottom of the ladder is 5 m from the building. How high is the top of the ladder?
Answer by nerdybill(1279) About Me  (Show Source):
You can put this solution on YOUR website!
A 10-m ladder is leaning against a building. The bottom of the ladder is 5 m from the building. How high is the top of the ladder?
.
Apply Pythagorean's theorem:
Let H = height of top of ladder
.
H^2 + 5^2 = 10^2
H^2 + 25 = 100
H^2 = 75
H = sqrt(75)
H = 8.66 m