Two joggers run 8 miles north and then 5 miles west. What is the shortest distance back to their starting point to the nearest tenth of a mile?

9.4 miles to the nearest tenth.

Step-by-step explanation:

This run forms a right angled triangle with legs of 5 and 8 miles.

By Pythagoras:

x^2 = 8^2 + 5^2

x = √(64+25) = √89

x = 9.434 miles

2 and 1.

step-by-step explanation:

plug in each answer. 0 doesn't work, 1 does. so does 2. 4 doesn't:

0 = 1 is not true.

2 = 2 is true.

4 = 4 is true.

8 = 16 is not true.

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w'x is 0.

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