C : is an irrational number
This is a problem of permutation or arrangements, the word PRECALCULUS has 11 letters, of which 3 letters appear twice, we want to get the number of indistinguishable arrangements, this is how we do it,
![P_r^n=\frac{n!}{(n-r)!}](https://tex.z-dn.net/?f=P_r%5En%3D%5Cfrac%7Bn%21%7D%7B%28n-r%29%21%7D)
For our problem, what we do is
Answer:
-957
Step-by-step explanation:
keep doing -14 till you get to the 68th term
Answer:
New avg = 103
Step-by-step explanation:
(5 x 100 + 118) / 6 = 103 average