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
N= 00
NNE= 022.5
NE= 045
ENE= 067.5
E= 090
ESE=112.5
SE= 135
SSE= 157.5
S=180
SSW= 202.5
SW= 225
WSW= 247.5
W=270
WNW= 292.5
NW= 315
NNW= 337.5
Hope i helped!
Answer:
A
Step-by-step explanation:
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Answer:
52 =4x 13
Step-by-step explanation:
