A(b-c)
First substitute values
-8(12+4)=
Next, solve using ordering of PEMDAS
-8 (12+4)=
-8 (16)=12
The answer is 36 in simplist form
C - 0
If you put 0 into the graph (as an x value), your output would be 0.
Let <em>a</em> be the speed of the plane and <em>w</em> the wind speed.
<em>a</em> - <em>w</em> = (8460 km)/(9 h) = 940 km/h
<em>a</em> + <em>w</em> = (9600 km)/(8 h) = 1200 km/h
Add these speeds together to eliminate <em>w</em> and solve for <em>a</em> :
2<em>a</em> = 1740 km/h
<em>a</em> = 870 km/h
Subtract the first vector from the second to eliminate <em>a</em> and solve for <em>w</em> :
2<em>w</em> = 260 km/h
<em>w</em> = 130 km/h
In any polynomial when you have an imaginary root, there is always another imaginary root that is the conjugate of the first one:
1st root: 4 + 17i
2nd root: 4 - 17i (the conjugate of the 1st one)
