The compass heading is 242.5deg
a = 4, b = -21, c = -18
to keep from getting "mixed up", evaluate the discriminant first ...
b<sup>2</sup> - 4ac = (-21)<sup>2</sup> - 4(4)(-18) = 729
sqrt(729) = 27
x = (21 +/- 27)/8
x = -3/4, x = 6
since the discriminant is a perfect square, the original quadratic will factor ...
4x<sup>2</sup> - 21x - 18 = 0
(4x + 3)(x - 6) = 0
x = -3/4, x = 6
Huh??? Where is the question?
About 102.5625... I think
Yes ur correct
ABC=XYZ
Because C and Z stay the same so just flip the shape n point A is small and X is small so they go together and B and Y r pointing out they go together
