Answer:
4.502
Step-by-step explanation:
Area of a square is given by
A=L*L = Length squared
20.275=L squared
Applying the square root to both sides of the equation gives L= 4.50222...
L = 4.502 correct to 4 significant figures
Answer:
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Step-by-step explanation:
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1. It’s 3 because 12 divided by 4 is 3
The year 2013 contains four digits {2, 0, 1, 3} that are consecutive.
We want to find the next year such that this happens. We will find that in 18 years this will this event occur next.
The next year that this happens is the year that has the same digits, but the tens and units digits are permuted (as these are the place values with smaller values).
So the next year that this happens is:
2031
It also has the digits {2, 0, 3, 1} which has the same digits as 2013.
To find how many years after this will happen, we just need to find the difference between 2031 and 2013.
This is: 2031 - 2013 = 18
In 18 years this will this event occur next.
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