Answer:
Step-by-step explanation:
The required t score would be determined from the t distribution table. In order to use the t distribution, we would determine the degree of freedom, df for the sample.
df = n - 1 = 50 - 1 = 49
Since confidence level = 99% = 0.99, α = 1 - CL = 1 – 0.99 = 0.01
α/2 = 0.01/2 = 0.005
the area to the right of z0.005 is 0.005 and the area to the left of z0.005 is 1 - 0.005 = 0.995
Looking at the t distribution table,
t score = 2.678
The third one should be right
Answer:
No Problem
Step-by-step explanation:
Answer: 12 inches to 1 foot.
Step-by-step explanation: Well, there is 12 inches in 1 foot, so the last one if I'm not mistaken. knowing this, 100 / 12 = 8.33
100 inches per minute converts to 8.33 feet per minute.
The equation after the first step is (d) 2v+4=8
The equation is given as:
![\frac{5}{3}v+4+\frac{1}{3} v=8](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B3%7Dv%2B4%2B%5Cfrac%7B1%7D%7B3%7D%20v%3D8)
The first step to solving the equation is to collect like terms.
So, we have:
![\frac{5}{3}v+\frac{1}{3}v+4 =8](https://tex.z-dn.net/?f=%5Cfrac%7B5%7D%7B3%7Dv%2B%5Cfrac%7B1%7D%7B3%7Dv%2B4%20%3D8)
Take LCM
![\frac{5+1}{3} v+4=8](https://tex.z-dn.net/?f=%5Cfrac%7B5%2B1%7D%7B3%7D%20v%2B4%3D8)
Add 5 and 1
![\frac{6}{3}v+4=8](https://tex.z-dn.net/?f=%5Cfrac%7B6%7D%7B3%7Dv%2B4%3D8)
Divide 6 by 3
2v+4=8
Hence, the equation after the first step is (d) 2v+4=8
Read more about equivalent equations at:
brainly.com/question/2972832
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