6+3+5+7= 21 balls total
Choose 2 balls
21C2= 210 total number of ways you could have chosen the two balls
(nCr- n=total, r=choose)
Total green balls= 3
You choose first green ball out of 3
3C1
Then you choose second green ball out of the 2 green balls left
2C1
Multiply these two outcomes
3C1•2C1= 6
Probability=
6/210= 1/35
Answer:
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Step-by-step explanation:
if you multiplie 80 by 0.50 you will get 40,
Answer:

<h2>-10.4 is the right answer.</h2>
F(-3) means x = -3
Look at the functions above, if x <= - 3 then use F(x) = 7 - x
so
F(-3) = 7 - x, replace x = - 3 into the function
F(-3) = 7 - (-3)
F(-3) = 7 + 3
F(-3) = 10