Answer:
y=3x
Step-by-step explanation:
Use a calculator to guess and check
Answer:
f hi ggdguuffuuuddghhgfdchhghrhfbdurbdu DVRudhr
Find the average of all the tests on the first and second test. You find the average by adding up all the test scores and dividing it by the number of test scores you added. Then you can see if she did better than the overal average on each of the tests
Answer:
Total number of ways are 336.
Step-by-step explanation:
It is required to find the number of ways in which we can award a 1st, 2nd and 3rd place prize among eight contestants. It means we need to find the number of permutations. We need to find
.
Here, r = 3
So,
![^nP_r=\dfrac{n!}{(n-r)!}\\\\^8P_3=\dfrac{8!}{(8-3)!}\\\\^8P_3=\dfrac{8!}{5!}\\\\^8P_3=\dfrac{8\times 7\times 6\times 5!}{5!}\\\\^8P_3=336](https://tex.z-dn.net/?f=%5EnP_r%3D%5Cdfrac%7Bn%21%7D%7B%28n-r%29%21%7D%5C%5C%5C%5C%5E8P_3%3D%5Cdfrac%7B8%21%7D%7B%288-3%29%21%7D%5C%5C%5C%5C%5E8P_3%3D%5Cdfrac%7B8%21%7D%7B5%21%7D%5C%5C%5C%5C%5E8P_3%3D%5Cdfrac%7B8%5Ctimes%207%5Ctimes%206%5Ctimes%205%21%7D%7B5%21%7D%5C%5C%5C%5C%5E8P_3%3D336)
So, there are 336 ways.