Answer:
the answer is 6.72
Step-by-step explanation:
Instead of a diagram you can do 4.2 times 1.6 and after you finishes doing that You put the decimal 2 times and you should get 6.72
The answer to this problem is 23.5 . You are going to start by multiplying whats inside the paranthesis’s and then you’re going to calulate the sum and then difference and you should be left with 23.5
The probability of picking a black ball first is
![\dfrac{4}{5}](https://tex.z-dn.net/?f=%5Cdfrac%7B4%7D%7B5%7D)
, because there are 4 black balls and 1 white ball which is 5 balls in total. After picking the first ball, 4 balls remain - 3 black and 1 white, so the probability of picking a white ball is
![\dfrac{1}{4}](https://tex.z-dn.net/?f=%5Cdfrac%7B1%7D%7B4%7D)
.
So, the probability of picking a black ball first followed by a white ball is
Answer:
1 x 10^10
2 x 10^-10
7 x 10^-11
8 x 10^-11
Step-by-step explanation: