█ 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.
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<span>✦ We usually write altitude in feet.
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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>
Answer:
16.6
Step-by-step explanation:
The rectangle has an area of 105. It's width is 7.
1: Find the length
=length
= 15
Length=15
2: Pythagorean theorem

+
49+225=
275=
= 
16.55≈c
Rounded to nearest tenth
16.6
18x+9xy (9x⋅2)+(9x⋅y <span>(9x⋅2)+(9x⋅y You multiply 9x times 2 and then 9x times y. Because a(b+c) = ab + ac</span>
Answer: 
Step-by-step explanation:
Given
Quadratic equation is

Solving by completing the square method

The solution set of the equation is 