Answer:
4.65
0.65 is 13/20 in decimal form add that to 4 you get 4.65. I don't know what you mean by Long division form since it's just solving in the way of the picture shown up above. But that's not the same equation as this one btw. If you ment something else let me know. Click on it to get full view.
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ANSWER
EXPLANATION
The given quadratic trinomial is
Comparing to the general quadratic trinomial:
We have a=1, b=10 and c=-8
The factors of -24 that adds up to 10 are -2 and 12.
We split the middle term to obtain;
Factor;
Factor further;
The last option is correct.
Answer:
Standard deviation of a normal data distribution is a measure of data dispersion.
Step-by-step explanation:
Standard deviation is used to measure dispersion which is present around the mean data.
The value of standard deviation will never be negative.
The greater the spread, the greater the standard deviation.
Steps-
1. At first, the mean value should be discovered.
2.Then find out the square of it's distance to mean value.
3.Then total the values
4.Then divide the number of data point.
5.the square root have to be taken.
Formula-
SD=
Advantage-
It is used to measure dispersion when mean is used as measure of central tendency.