Two lines and a point are guaranteed to be coplanar if the two lines share only a single point.
Hope this helped :)
Let h equal the length of the party in hours
200.66 + 30.53h = 322.78
now just solve for h :)
30.53h = 122.12
h = 4
so the party was 4 hours long
Answer:
x = -3 and x = 3/2
Step-by-step explanation:
2x^2 + 3x - 9 = 0
2x^2 + 6x - 3x - 9 =0
2x(x + 3) - 3(x + 3) = 0
(2x - 3)(x + 3) = 0
2x - 3 = 0; x = 3/2
x + 3 = 0; x = -3