Answer:
about 51.77%
Step-by-step explanation:
The probability you will roll a 2 is the complement of the probability you will not roll a 2.
__
<h3>p(no 2)</h3>
A die has 6 faces, one of which is labeled with 2. The probability of rolling a 2 on any given roll is 1/6, so is 1-1/6 = 5/6 that a 2 will not be rolled. Sequential rolls of the die are presumed to be independent, so the probability of 4 rolls not showing a 2 at any time is ...
p(no 2) = (5/6)^4 = 625/1296
<h3>p(2)</h3>
The probability that at least one 2 will show up on at least one roll is the complement of this value:
p(some 2) = 1 -625/1296 = 671/1296 ≈ 0.517747
The chance you will roll at least one 2 is about 51.77%.
Answer:
0.48
Step-by-step explanation:
12 divided by 25 = 0.48
hope this helps
Answer:
The second operation is Multiplication
Step-by-step explanation:
The given expresion is
![72 - 3 + 9 \times 8 \div 2](https://tex.z-dn.net/?f=72%20-%203%20%2B%209%20%5Ctimes%208%20%5Cdiv%202)
We want to determine which operation will be completed second .
The order of operations we will use is BODMAS.
Which means:
Bracket
Of
Division
Multiplication
Addition
Subtracttion
Since there is no brackets and Of the first operation is division.
![72 - 3 + 9 \times 4](https://tex.z-dn.net/?f=72%20-%203%20%2B%209%20%5Ctimes%204)
The second operation is Multiplication
![72 - 3 + 36](https://tex.z-dn.net/?f=72%20-%203%20%2B%2036)
Answer:
![f^{-1} = \frac{x-1}{2}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%20%3D%20%5Cfrac%7Bx-1%7D%7B2%7D)
Step-by-step explanation:
![f(x) = 2x+1](https://tex.z-dn.net/?f=f%28x%29%20%3D%202x%2B1)
<em>Replace it with y</em>
![y = 2x+1](https://tex.z-dn.net/?f=y%20%3D%202x%2B1)
<em>Exchange the values of x and y</em>
![x = 2y+1](https://tex.z-dn.net/?f=x%20%3D%202y%2B1)
<em>Solve for y</em>
![x = 2y+1](https://tex.z-dn.net/?f=x%20%3D%202y%2B1)
<em>Subtracting 1 from both sides</em>
![2y = x-1](https://tex.z-dn.net/?f=2y%20%3D%20x-1)
<em>Dividing both sides by 2</em>
![y = \frac{x-1}{2}](https://tex.z-dn.net/?f=y%20%3D%20%5Cfrac%7Bx-1%7D%7B2%7D)
<em>Replace it by </em>![f^{-1}](https://tex.z-dn.net/?f=f%5E%7B-1%7D)
So,
![f^{-1} = \frac{x-1}{2}](https://tex.z-dn.net/?f=f%5E%7B-1%7D%20%3D%20%5Cfrac%7Bx-1%7D%7B2%7D)