3 is an odd number, so we need an even number of sets of 3 cards because 18 is an even number.
So we need 0, 2, 4 or 6 sets of three.
0 2-card + 6 3-card, 3 2-card+4 3-card, 6 2-card+2 3-card, 9 2-card+0 3-card. There are only 4 combinations:
(2-card, 3-card)=(0,6), (3,4), (6,2), (9,0).
Point-slope form: y - 5 = (-1/5)(x - 7)
standard form: x + 5y = 7
slope-intercept form: y = (-1/5)x + (7/5)
***note: (-1/5) = -0.2 and (7/5) = 1.4
10 to the sixth power = 1,000,000
1,000,000 ÷ 2 3/5 = 384615.384615
ANSWER : 384615.384615
Two events are described as dependent if the outcomes/ occurrence of the first effects the outcome of the second so that the probability is changed. From the choices given, dependent event will be:
determining first, second and third place runners.
This is because, it will require the assumptions that previous races maybe considered to come up with the probabilities.