Answer:
25
Step-by-step explanation:
Answer:
D,
Step-by-step explanation:
D would be the only one that doesn't represent a function because the y-value never changes while the x-value does.
<h3>The distance between two landmarks is 123 meters</h3>
<em><u>Solution:</u></em>
We have to find the distance between two landmarks
<em><u>Use the law of cosines</u></em>
The third side of a triangle can be found when we know two sides and the angle between them
![c^2 = a^2 + b^2 - 2ab\ cos c](https://tex.z-dn.net/?f=c%5E2%20%3D%20a%5E2%20%2B%20b%5E2%20-%202ab%5C%20cos%20c)
Here, angle between 90 meters and 130 meters is 65 degrees
From figure,
a = 90
b = 130
c = d
Therefore,
![d^2 = 90^2 + 130^2 - 2(90)(130)\ cos 65\\\\d^2 = 8100 + 16900 - 23400\ cos\ 65\\\\d^2 = 25000 - 23400 \times 0.4226\\\\d^2 = 25000 - 9889.267\\\\d^2 = 15110.73\\\\d = 122.92\\\\d \approx 123](https://tex.z-dn.net/?f=d%5E2%20%3D%2090%5E2%20%2B%20130%5E2%20-%202%2890%29%28130%29%5C%20cos%2065%5C%5C%5C%5Cd%5E2%20%3D%208100%20%2B%2016900%20-%2023400%5C%20cos%5C%2065%5C%5C%5C%5Cd%5E2%20%3D%2025000%20-%2023400%20%5Ctimes%200.4226%5C%5C%5C%5Cd%5E2%20%3D%2025000%20-%209889.267%5C%5C%5C%5Cd%5E2%20%3D%2015110.73%5C%5C%5C%5Cd%20%3D%20122.92%5C%5C%5C%5Cd%20%5Capprox%20123)
Thus, the distance between two landmarks is 123 meters
Answer:
1.8-9
2. most often
3.12-13
4.12-13
Step-by-step explanation:
i got it correct thats all i got to say