David leaves the house to go to school. He walks 290 m west and 170 m north. To the nearest tenth, how far away is he from his s
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<em>In decimal form, a = 114.5; b = 25.5</em>
We will write this as a system of equations, where and
are the two angles.
We will use substitution to solve this system. We know what equals, so we plug that into the second equation.
Combine the like terms.
Add on both sides.
Divide both sides by .
Now just subtract that from .