13. 4 in. 2 in. 1 in. 1 3 in.
1 answer:
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First, let's calculate the horizontal and vertical components of the wind speed (W) and the airplane speed (A), knowing that south is a bearing of 270° and northeast is a bearing of 45°:
Now, let's add the components of the same direction:
To find the resultant bearing (theta), we can use the formula below:
The angle -86° is equivalent to -86 + 360 = 274°.
Therefore the correct option is b.
Answer:
Step-by-step explanation:
So we have the two functions:
And we want to find f(g(-2)).
First, let's find g(-2):
Multiply:
Subtract:
Now, substitute:
Now, find the value of f(-20):
Multiply:
Add:
So:
And we're done!