3 years ago

I need some more help in this section!!

1 answer:

7 0

Probability:

5/8 on the first draw

4/7 on the second

So...

5/8 x 4/7 = 5/14

answer: 5/14

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IrinaK [193]

Answer:

5.25 miles

Step-by-step explanation:

We are required to determine the distance between Lighthouse A and Lighthouse B in the diagram.

Using Law of Cosines

$c^2=a^2+b^2-2abCosC\\c^2=7^2+4^2-2(7)(4)Cos48^\circ\\c^2=27.5287\\c=\sqrt{27.5287} \\c=5.25\: miles$

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