Answer: infinitely many solutions
Step-by-step explanation: 6y = -3x + 30 rewrites to 3x + 6y = 30
1. align equations x + 2y = 10
3x + 6y = 30
2. multiply first equation by -3 to get -3x - 6y = -30
3. align equations -3x - 6y = -30
3x + 6y = 30
4. add the equations and you they cancel out, which means infinitely many solutions
Answer:]
At least 75% of the eruptions lasted between 1.24 and 5.6 minutes.
Step-by-step explanation:
We are given the following information in the question:
n = 32
Mean = 3.42
According to Chebyshev's rule:
At least
, percent of data lies within
, where s is the standadrd deviation of the data and
is the mean of data.
For k = 2, we have
![1 - \displaystyle\frac{1}{4} = \displaystyle\frac{3}{4} = 75\%](https://tex.z-dn.net/?f=1%20-%20%5Cdisplaystyle%5Cfrac%7B1%7D%7B4%7D%20%3D%20%5Cdisplaystyle%5Cfrac%7B3%7D%7B4%7D%20%3D%2075%5C%25)
75% of data lies within the range of
![(3.42 \pm 2\times 1.09)\\= (3.42 - 2.18, 3.42 + 2.18)\\= (1.24,5.6)](https://tex.z-dn.net/?f=%283.42%20%5Cpm%202%5Ctimes%201.09%29%5C%5C%3D%20%283.42%20-%202.18%2C%203.42%20%2B%202.18%29%5C%5C%3D%20%281.24%2C5.6%29)
Thus, at least 75% of the eruptions lasted between 1.24 and 5.6 minutes.
I got the answer b hope it helps
Answer:
55555
Step-by-step explanation:
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