Answer:
there's no solution.
Step-by-step explanation:
if y = 3x -4 then use this instead of y in the second equation
9x -3(3x+4) = 14 ➡9x-9x -12 = 14 9x will eliminate -9x and -12 can't be = 14 so there's no solution
Using the concept of probability and the arrangements formula, there is a
0.002 = 0.2% probability that the first 8 people in line are teachers.
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- A probability is the <u>number of desired outcomes divided by the number of total outcomes.</u>
- The order in which they are positioned is important, and all people will be positioned, and thus, the arrangements formula is used to find the number of outcomes.
The number of possible arrangements from a set of n elements is given by:
![A_n = n!](https://tex.z-dn.net/?f=A_n%20%3D%20n%21)
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The desired outcomes are:
- First 8 people are teachers, in <u>8! possible ways.</u>
- Last 4 are students, in <u>4! possible ways.</u>
Thus, ![D = 8! \times 4!](https://tex.z-dn.net/?f=D%20%3D%208%21%20%5Ctimes%204%21)
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For the total outcomes, <u>number of arrangements of 12 people</u>, thus:
![T = 12!](https://tex.z-dn.net/?f=T%20%3D%2012%21)
The probability is:
![p = \frac{D}{T} = \frac{8! \times 4!}{12!} = 0.002](https://tex.z-dn.net/?f=p%20%3D%20%5Cfrac%7BD%7D%7BT%7D%20%3D%20%5Cfrac%7B8%21%20%5Ctimes%204%21%7D%7B12%21%7D%20%3D%200.002)
0.002 = 0.2% probability that the first 8 people in line are teachers.
A similar problem is given at brainly.com/question/24650047
Answer: 121.836
Step-by-step explanation: So the first thing you need to do is:
31.24
x3.90 you need to put the zero there because the decimal points would need to match up.
_____
Once you do that just put the decimal down. Like this:
31.24
x3.90
____ Once you do that just ignore the decimal and multiply.
.
Once you have finished, the answer should be 121.836.
Hope I Helped!
:)
Answer: THE ANSER IS A. No, the domain value 5 corresponds to two range values, -8 and 5.
Find the domain and range.
Domain:
{
6
, 5 ,
1
}
Range:
{
−
7
, −
8 ,
4 ,
5
}
Step-by-step explanation: IT'S NOT C OR D
Determine if the relation is a function.
The relation is not a function.