(-2)(y)/4
What is the value of y, I think this is missing to figure out the final answer.
But once y is known you will use the xy/z gormils. Multiply -2 and y value. Then divide that by 4.
Please vote my answer brainliest. thanks!
Answer:
You first subtract 5x from both sides and end up with -3y=21-5x. In order to isolate the variable you need to divide -3 from both sides. Your equation would then be y= -7+ 5/3x.
Answer:
6 times we need to transmit the message over this unreliable channel so that with probability 63/64.
Step-by-step explanation:
Consider the provided information.
Let x is the number of times massage received.
It is given that the probability of successfully is 1/2.
Thus p = 1/2 and q = 1/2
We want the number of times do we need to transmit the message over this unreliable channel so that with probability 63/64 the message is received at least once.
According to the binomial distribution:
![P(X=x)=\frac{n!}{r!(n-r)!}p^rq^{n-r}](https://tex.z-dn.net/?f=P%28X%3Dx%29%3D%5Cfrac%7Bn%21%7D%7Br%21%28n-r%29%21%7Dp%5Erq%5E%7Bn-r%7D)
We want message is received at least once. This can be written as:
![P(X\geq 1)=1-P(x=0)](https://tex.z-dn.net/?f=P%28X%5Cgeq%201%29%3D1-P%28x%3D0%29)
The probability of at least once is given as 63/64 we need to find the number of times we need to send the massage.
![\frac{63}{64}=1-\frac{n!}{0!(n-0)!}\frac{1}{2}^0\frac{1}{2}^{n-0}](https://tex.z-dn.net/?f=%5Cfrac%7B63%7D%7B64%7D%3D1-%5Cfrac%7Bn%21%7D%7B0%21%28n-0%29%21%7D%5Cfrac%7B1%7D%7B2%7D%5E0%5Cfrac%7B1%7D%7B2%7D%5E%7Bn-0%7D)
![\frac{63}{64}=1-\frac{n!}{n!}\frac{1}{2}^{n}](https://tex.z-dn.net/?f=%5Cfrac%7B63%7D%7B64%7D%3D1-%5Cfrac%7Bn%21%7D%7Bn%21%7D%5Cfrac%7B1%7D%7B2%7D%5E%7Bn%7D)
![\frac{63}{64}=1-\frac{1}{2}^{n}](https://tex.z-dn.net/?f=%5Cfrac%7B63%7D%7B64%7D%3D1-%5Cfrac%7B1%7D%7B2%7D%5E%7Bn%7D)
![\frac{1}{2}^{n}=1-\frac{63}{64}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%5E%7Bn%7D%3D1-%5Cfrac%7B63%7D%7B64%7D)
![\frac{1}{2}^{n}=\frac{1}{64}](https://tex.z-dn.net/?f=%5Cfrac%7B1%7D%7B2%7D%5E%7Bn%7D%3D%5Cfrac%7B1%7D%7B64%7D)
By comparing the value number we find that the value of n should be 6.
Hence, 6 times we need to transmit the message over this unreliable channel so that with probability 63/64.
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This question is fill in the blanks.So there is a total of 3 sentences in this question.
1. In a perfectly competitive market, all producers sell identical goods or services. - One of the characteristics of a perfect competition. This means that the product must be indistinguishable from anycompetitor's product.
2. Additionally, there are many buyers and sellers. – any one firm’s output in contrast to the market output is gradual and what one firm does has no affect on other firms.
3. Buyers and sellers in perfectly competitive markets are price takers. - This means that they accept the price offered in stores.