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karmalol2271
13.07.2019 •
Mathematics
Which shows a rational number plotted correctly on a number line?
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Ответ:
The second illustration is correct. Note that the given number, -21/2, is between -24/2 and -20/2. Identifying and using the LCD (here, 2) makes the comparison and placement much easier than they would be otherwise.
Ответ:
We know that any negative number is always represented to the left of zero on the number line.
In first graph:
The number -3.5 is represented to the right of zero.
It is represented in between 2 and 4.
But we know that -3.5 lie between -4 and -2.
Hence, option: 1 is incorrect.
In second graph:
The number -21/2 is a negative number and lie between -11 and -10
Hence, option: 2 is correct.
In third graph:
The number -7/2 lie between -4 and -3.
But in the graph it is plotted to the left of -4 whereas it should be to the right of -4.
Hence, option: 3 is incorrect.
In fourth graph:
The number 9/2 is equal to 4.5
and it must lie between 4 and 5.
i.e. it should be plotted to the right of 4.
Hence, option: 4 is incorrect.
Ответ:
Its the second option.
Step-by-step explanation:
Hope this helped!