Answer:13
Step-by-step explanation:
Cause 13 reverse is 31 and 13 plus 18 is 31
The probability of picking 2 white balls and 1 black ball is 0.154
<h3>How to determine the probability?</h3>
The given parameters are:
- Number of balls, n = 20
- White = 12
- Black = 8
When each ball is selected, the total number of ball decreases by 1 and the type of ball also decreases.
So, the probability is represented as:
P(2 white and 1 black) = White/n * White - 1/n - 1 * Black//n - 2
Substitute known values
P(2 white and 1 black) = 12/20 * 11/19 * 8//18
Evaluate
P(2 white and 1 black) = 0.154
Hence, the probability of picking 2 white balls and 1 black ball is 0.154
Read more about probability at:
brainly.com/question/251701
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Answer:
y= 4 (square root of 3) x=8
Step-by-step explanation:
it's hard to explain but I am in geometry and learned this two
They are parllel to each other so they would be a parallel graph Hope this helps and Make sure to give a 5 star rating and a big old THANKS!
Answer:
75
Step-by-step explanation: