Solve. Round to the nearest tenth.
-Juliet runs out of gas in Barnhaven, South Carolina. She walks 8 mi west and then 3 mi south looking for a gas station. How far is she from her starting point?
A)3.3 mi
B)7.4 mi
C)73 mi
D)8.5 mi

Question

Quizplus · Accepted Answer

This problem can be solved using the Pythagorean theorem. The distance Juliet is from her starting point is the hypotenuse of a right triangle with legs of 3 miles and 8 miles. So, using the Pythagorean theorem:

distance = sqrt(3^2 + 8^2)
distance = sqrt(9 + 64)
distance = sqrt(73)

Rounding to the nearest tenth, distance = 8.5. Therefore, the answer is D.

Solve. Round to the Nearest Tenth