Answer:
D. 8%
Step-by-step explanation:
I took the test on Edmentum/Plato & it was correct!
Answer:
y=6/5
Step-by-step explanation:
Hope this helps! Sorry if its wrong
There are 6 different combinations of 2 books from the group of 4 that he could choose to do.
Let's say all of the books were letters.
Books a, b, c, and d.
Different combinations include:
ab, ac, ad, bc, bd, and cd.
Given:
The two statements.
To find:
The probability of an impossible event.
The probability of a certain event.
Solution:
Formula for probability is:
![P=\dfrac{\text{Possible favorable outcomes}}{\text{Total number of outcomes}}](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7B%5Ctext%7BPossible%20favorable%20outcomes%7D%7D%7B%5Ctext%7BTotal%20number%20of%20outcomes%7D%7D)
For an impossible event, the possible favorable outcomes is 0. So,
![P=\dfrac{0}{\text{Total number of outcomes}}](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7B0%7D%7B%5Ctext%7BTotal%20number%20of%20outcomes%7D%7D)
![P=0](https://tex.z-dn.net/?f=P%3D0)
For a certain event (sure event), the possible favorable outcomes is equal to total number of outcomes. So,
![P=\dfrac{\text{Total number of outcomes}}{\text{Total number of outcomes}}](https://tex.z-dn.net/?f=P%3D%5Cdfrac%7B%5Ctext%7BTotal%20number%20of%20outcomes%7D%7D%7B%5Ctext%7BTotal%20number%20of%20outcomes%7D%7D)
![P=1](https://tex.z-dn.net/?f=P%3D1)
Therefore, an event that is impossible has probability 0 and an event that is certain has probability 1.
Answer:
1. y = x + 3
2. y =
x -6
3. y = x - 1
4. y = -2x -2
5. y = 2x - 1
6. y =
x - 4
7. y = -x
8. y =
x + 1
Step-by-step explanation:
I'm sorry I couldn't finish it all! I hope this helps. I've been summoned to dinner...