SOLUTION: brandon hikes 7 miles south and 4 west. How far is he from the starting point of his hike?

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Question 186064This question is from textbook Pre-Algebra
: brandon hikes 7 miles south and 4 west. How far is he from the starting point of his hike? This question is from textbook Pre-Algebra

Answer by josmiceli(19441) About Me  (Show Source):
You can put this solution on YOUR website!
Call the distance from his starting point d
By the pythagorean theorem for a right triangle:
d%5E2+=+7%5E2+%2B+4%5E2
d%5E2+=+49+%2B+16
d%5E2+=+65
d+=+sqrt%2865%29
d+=+8.062 mi