A is the only one that ones not decrease using a negative sign
Answer:
<em>41 degrees</em>
Step-by-step explanation:
<em>According to Angle Sum Property, the sum of the internal angles of a triangle is equal to 180 degrees.</em>
<em>Therefore,</em>
<em>52 + 87 + ? = 180</em>
<em>139 + ? = 180</em>
<em>? = 180 - 139</em>
<em>? = 41 degrees</em>
5300 and 6000 is the elevation in miles
To solve the problem, simply plug in the value for x in both functions, as shown below:

--> 
---> 

--> 
---> 
----> 
, so the answer is 34.