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inesdelude
18.10.2020 •
Mathematics
I’m clueless! Can someone explain how to do this question step by step? Thanks! Extra points!! What is the average (arithmetic mean) of 4x + 5, 7x-6, and -8x+2?
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Ответ:
x+ 1/3 is the average
Step-by-step explanation:
To find the mean, add the terms together and then divide by the number of terms. There are 3 terms
(4x + 5+ 7x-6 + -8x+2)/3
Combine like terms
( 3x+1)/3
x+ 1/3 is the average
Ответ:
Key features: the functions can not be parallels, this means that their respective slopes can not be equal or multiple to the other
Step-by-step explanation:
Take for instance 2 linear functions, and
If they intersect in some point in the space, say that is
Then (x1,y1)=(x3,y3), (x2.y2)= (x3,y3)
So, we can compare the two functions and get the following result;
It tells us that if M=m, we get an error, meaning that the functions are in fact parallels and there is no way that they meet in some point.
hope this helps!