On the library shelf are: -6 mystery books -5 science books -4 history books -3 adventure books Which event gives you a probabil
1 answer:
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Answer:
<h2>a = 400/21, b = 580/21</h2>Step-by-step explanation:
Small triangles are similar. Therefore, the sides are proportional
<em>cross multiply</em>
<em>divide both sides by 21</em>
For b, we can use the Pythagorean theorem: