1. 1/3
2.1/3
3.3/36
this is because probability is equal to favourable outcome/total outcome. in this case, favourable outcome is the outcome that is asked in the question and total outcome is all the possibilities
F(x) = 5(-3x) ^2 - (-3x) + 1
f(x) = -8x ^2 + 3x + 1
f(x) = -8x ^3 + 3x
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The expression i determined is 10x + 6