<h3>Answer: Approximately 6.4 units</h3>
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Explanation:
The origin is the point (0,0)
Use the distance formula to find the distance from (0, 0) to (4, -5)
Let

be our two points. Plug those values into the distance formula below and use a calculator to compute

The distance between the two points (0,0) and (4,-5) is approximately 6.4 units.
BC = 6 km
<u>/</u><u> </u> ACB = 34°
AC = ?
cos 34° = 
=> 0.829 = 
=> AC = 
=> AC = 7.23763570567
=> AC = 7 km
=> AC = 10 km
(nearest tenth)

<h3>Answer : 10 km</h3>

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Answer:
66
Step-by-step explanation:
30 should be the correct answer