Let’s say u have 3 red blocks, two blue blocks and 4 yellow blocks, what it chance of pulling 2 of the same
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3 red blocks + 2 blue blocks + 4 yellow blocks = 9 blocks in total.

Pulling two reds in a row :

3/9 * 2/8 = 3/36

Pulling two blues in a row :

2/9 * 1/8 = 1/36

Pulling two yellows in a row :

4/9 * 3/8 = 1/6

f(x) has value 150 at x= 0

and 0 at x= 3

so d(f(x))/dt = slope = -150/3 = -50

step-by-step explanation:

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