Question

The Pythagorean Theorem and Irrational numbers

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Bob Walks 4 miles North then heads west until he gets to school. If the school is 7 miles from Bob's house , how far West does Bob have to walk?
A. 3 Miles
B. square root 21 miles
C. Square Root 33 Miles

Answer 1

49=16+x^2
x^2= 33
x= square root of 33