B) p=9t
he gets paid $9/hr, and his pay depends how many hours he works.
180 is the totally amount it can be
Answer:
P( top two horses are predicted incorrectly in incorrect order)
= ![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
Step-by-step explanation:
In the horse race the outcome can be predicted in 5! = 120 ways.
Now suppose the top two horses were predicted incorrectly in incorrect order. Now, the top horse can be predicted incorrectly in 4 ways.
Suppose the top horse was predicted to be in k-th position where k = 2, 3 ,4,5
so the second horse can be predicted to be in place from 1 to (k - 1)
So, the top two horses can be predicted incorrectly in incorrect order
in
= 10 ways
and for each prediction of the two the remaining horses may be predicted in 3! = 6 ways.
Hence ,
P( top two horses are predicted incorrectly in incorrect order)
= ![\frac{6 \times 10}{120}](https://tex.z-dn.net/?f=%5Cfrac%7B6%20%5Ctimes%2010%7D%7B120%7D)
=![\frac{1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D)
<span>Step 1: 0.06 = 6⁄100</span>
<span>Step 2: Simplify 6⁄100 = 3⁄50</span><span>
hope this helps:)
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