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Elena L [17]
3 years ago
6

HELP 30 POINTS!!!!!

Mathematics
1 answer:
Tamiku [17]3 years ago
5 0

by pythagorean formula, the last side is √(61)

by cos rule

cos A

=  \frac{ {6}^{2}  + 61 -  {5}^{2} }{2 \times 6 \times  \sqrt{61} }  \\  =  \frac{72}{12 \sqrt{61} }   \\  =  \frac{6}{ \sqrt{61} }

A = 39.81

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Dennis_Churaev [7]
So I guess we are solving for x here :)
So here is my work...
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5 0
3 years ago
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Answer:

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Given

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3 years ago
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Step-by-step explanation: Using the place value chart, we can see that the decimal 0.4 is four tenths, so we can write 0.4 as the fraction 4/10.

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