Answer:
The speed of the roll is 1239.52 revolutions per minut (1239.52 rpm).
Step-by-step explanation:
In this problem we want to know the angular speed of the roll, knowing its tangencial speed (1220 yards/hour).
The relation between the angular speed and the tangencial speed is
In this case we have a diameter of 3 cm and a velocity of 1220 yards/hour. So we can write
So the speed of the roll is 1239.52 revolutions per minut (1239.52 rpm).
Answer:
a) Hence the endpoints of a t-distribution with 5% beyond them in each tail if the sample has size n=12 is ± 1.796.
b) Hence the endpoints of a t-distribution with 1% beyond them in each tail if the sample has size n=20 is ± 2.539.
Step-by-step explanation:
Here the answer is given as follows,
Answer:
The value of x will be 8
Step-by-step explanation:
We have given that
We have to find the value of x
As
For finding the value of x we have to square both side
On squaring both side
We done squaring both side for easy simplification
So x = 8
So the value of x will be 8
So answer will be 8