The mean of the data is 11
now we find the difference between the mean and each number
1, 2, 3, 0.5, 0.25, 1.25, 1.
now we square the numbers
1, 4, 9, 0.25, 0.0625, 1.
now we find the mean of the new numbers
which is 2.1875
2.1875 is your standard deviation.
The statement that best describes the blocks after the spring is released is the total momentum is zero.
<h3 /><h3>Law of conservation of momentum</h3>
From the law of conservation of momentum, the initial momentum of the system, M equals the final momentum of the system M'
M = M'
<h3>
Momentum of blocks</h3>
Now, since both blocks are initially at rest, the initial momentum M = 0.
Since the initial momentum equals the final momentum after the blocks are released,
M = M' = 0
So, the total momentum after the blocks are released is zero.
So, the statement that best describes the blocks after the spring is released is the total momentum is zero.
Learn more about total momentum here:
brainly.com/question/25121535
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<u>Step</u>-<u>by</u>-<u>step</u> <u>explanation</u>:
<u>Note</u>:-
- A fraction is said to be written in its lowest form if its numerator and denominator are prime, that is, they have no common factors other than 1.
Answer: 36 shirts and costs $432
step by step:
first make an equation with the amount of sold shirts being equal to cost of making them -
12x=10x+72 where x is the number of shirts
then, subtract 10x from 12x to get the variable on the same side -
2x=72
finally, divide by 2 to isolate x
x=36 shirts
to figure out the cost, substitute 36 for x in 10x+72
10(36)+72= 360+72= $432
