Month 6, work down below
months / students
0 30 45
1 36 48
2 42 51
3 45 54
4 51 57
5 57 60
6 63 63
Answer:
504
Step-by-step explanation:
28, 72 | 2
14, 36 | 2
7, 18 | 2
7, 9 | 3
7, 3 | 3
7, 1 | 7
1, 1 | 1
MMC = 2 . 2 . 2 . 3 . 3 . 7 = 504
Answer:
Systematic sampling.
Step-by-step explanation:
The systematic sampling is the type of random sampling when the first unit is selected at random from k units and then every kth unit is selected. The k is known as sampling interval which is equal to the population size divided by sample size i.e. N/n.
In the given scenario a quality control manager start with 6th and then every 14th soup canssoup is selected. The sampling units can be selected as 6, 20, 34, 48, 62, 76... and so on. Here the value of k is 14. Thus, the given sampling is the systematic sampling.
Answer:
1={5 and 3} 2={0} 3={0.209 and 4.791} 4={-3 and 4} 5={1 and 9} 6={-4.303 and -0.697}
Step-by-step explanation:
Your probably confused on what a, b, and c means.
The problems are written like this.
![ax^2+bx+c=0](https://tex.z-dn.net/?f=ax%5E2%2Bbx%2Bc%3D0)
That formula finds the zeros.
For example 1:
![x^2-8x+15=0\\ax^2-bx-c\\a=1\\b=-8\\c=15](https://tex.z-dn.net/?f=x%5E2-8x%2B15%3D0%5C%5Cax%5E2-bx-c%5C%5Ca%3D1%5C%5Cb%3D-8%5C%5Cc%3D15)
Then use the formula
![x=\frac{-b+-\sqrt{b^2-4ac} }{2a} \\\\x=\frac{-(-8)+-\sqrt{-8^2-4(1)(15)} }{2} \\x=\frac{8+-\sqrt{64-60} }{2} \\\\x=\frac{8+-2}{2}\\](https://tex.z-dn.net/?f=x%3D%5Cfrac%7B-b%2B-%5Csqrt%7Bb%5E2-4ac%7D%20%7D%7B2a%7D%20%5C%5C%5C%5Cx%3D%5Cfrac%7B-%28-8%29%2B-%5Csqrt%7B-8%5E2-4%281%29%2815%29%7D%20%7D%7B2%7D%20%5C%5Cx%3D%5Cfrac%7B8%2B-%5Csqrt%7B64-60%7D%20%7D%7B2%7D%20%5C%5C%5C%5Cx%3D%5Cfrac%7B8%2B-2%7D%7B2%7D%5C%5C)
If plus then 5, if minus then 3
CHECK:
![x^2-8x+15=0\\5^2-8(5)+15=0\\25-40+15=0\\0=0\\3^2-8(3)+15=0\\9-24+15=0\\0=0](https://tex.z-dn.net/?f=x%5E2-8x%2B15%3D0%5C%5C5%5E2-8%285%29%2B15%3D0%5C%5C25-40%2B15%3D0%5C%5C0%3D0%5C%5C3%5E2-8%283%29%2B15%3D0%5C%5C9-24%2B15%3D0%5C%5C0%3D0)
Hope this helps you understand how to do this by yourself. Now to do the rest ;-;