Answer:
<u>x</u><u> </u><u>is</u><u> </u><u>1</u><u>1</u>
Step-by-step explanation:

In a hour tailwind flies 402 mph
In a hour headwind flies 388 mph
The best and most correct answer among the choices provided by the question is the fourth choice "d=square root of (x^2+x^1)+(y^2-y^1)^2"
The law of cosines<span> for calculating one side of a triangle when the angle opposite and the other two sides are known. Can be used in conjunction with the </span>law<span> of sines to find all sides and angles. </span>
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Answer:
0
Step-by-step explanation:
I learned in sixth grade itself eaSy