Attached the solution and work. Not sure about number 3. You might have to check that one.
Mb= d + h Solve equation for b
2 answers:
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█ Explanation <span>█
Let's call the missing altitude 'x'.
</span><span>✦ To find the plane's altitude, find the tan of 30 degrees. The side opposite is going to be x, while the side adjacent is going to be 4.4 miles.
</span>✦
✦
✦
✦
✦
<span>✦ We usually write altitude in feet.
</span>
Answer: 2.54 * 5280 ~ <span>13,400 ft
</span><span>Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia</span>
Let's call the missing altitude 'x'.
</span><span>✦ To find the plane's altitude, find the tan of 30 degrees. The side opposite is going to be x, while the side adjacent is going to be 4.4 miles.
</span>✦
✦
✦
✦
✦
<span>✦ We usually write altitude in feet.
</span>
Answer: 2.54 * 5280 ~ <span>13,400 ft
</span><span>Hope that helps! ★ If you have further questions about this question or need more help, feel free to comment below or leave me a PM. -UnicornFudge aka Nadia</span>