Answer:
The appropriate solution is "1.7109". A further explanation is provided below.
Step-by-step explanation:
The given values are:
Sample size,
n = 25
Degree of freedom,
![df=n-1](https://tex.z-dn.net/?f=df%3Dn-1)
![=25-1](https://tex.z-dn.net/?f=%3D25-1)
![=24](https://tex.z-dn.net/?f=%3D24)
At 90% confidence level,
![\alpha=1-90 \ percent](https://tex.z-dn.net/?f=%5Calpha%3D1-90%20%5C%20percent)
![=1-0.9](https://tex.z-dn.net/?f=%3D1-0.9)
![=0.1](https://tex.z-dn.net/?f=%3D0.1)
and,
![\frac{\alpha}{2}=\frac{0.1}{2}](https://tex.z-dn.net/?f=%5Cfrac%7B%5Calpha%7D%7B2%7D%3D%5Cfrac%7B0.1%7D%7B2%7D)
![=0.05](https://tex.z-dn.net/?f=%3D0.05)
Now,
The correct values of t will be:
= ![t_{\frac{\alpha}{2}, df }](https://tex.z-dn.net/?f=t_%7B%5Cfrac%7B%5Calpha%7D%7B2%7D%2C%20df%20%7D)
= ![t_{0.05,24}](https://tex.z-dn.net/?f=t_%7B0.05%2C24%7D)
= ![1.7109](https://tex.z-dn.net/?f=1.7109)
Given that an object moves from the position +16 m to the position +47 m in 12 s. Now we need to find about what is its total displacement and what is its average velocity.
We know that displacement is the object's overall change in position.
So total displacement is given by:
Displacement = (+47) - (+16) = +31
Now velocity is given by ratio of displacement and time so final answer for velocity will be :
![Velocity=\frac{displacement}{time}=\frac{+31}{12}=2.583333](https://tex.z-dn.net/?f=Velocity%3D%5Cfrac%7Bdisplacement%7D%7Btime%7D%3D%5Cfrac%7B%2B31%7D%7B12%7D%3D2.583333)
Which is approx 2.6 m/s.
144-100 = 44. You take the square root of 44 and you get the number 12, which is the only rational number out of the list. Therefore, the answer is E.
B, C, and D is the answer
Answer:2.0%
Step-by-step explanation: