Answer:
x^2 -2xy -10y^2
x^2 -9xy +4 y^2
3x^3 +6x^2 -24 x +27
Step-by-step explanation:
3x^2-5xy -6y^2 -( 2x^2 -3xy+4y^2)
= 3x^2- 2x^2 -5xy +3xy-6y^2 -4 Y^2
= x^2 -2xy -10y^2
2x^2−5xy+y^2 -( x^2+4xy−3y^2)
=2 x^2 -x^2 -5xy -4xy +y^2 +3 y^2
=x^2 -9xy +4 y^2
7x^3−16x+18- (4x^3−6x^2+8x−9)
= 7x^3 -4x^3 + 6x^2-16x- 8x +18 +9
=3x^3 +6x^2 -24 x +27
I haven’t done the answer yet but an app that helps with this is calculator soup
370.75 ~ 371
Example:
To find the average for 10,18 and 13.
We just have add the following numbers and divided them by how many numbers you added.
Solution:
10 + 18 + 13 = 41
41 / 3 = 13.67 or 14
Then the average score is 14.
Measures of central tendency are a statistical method in which you measure and gather the middlemost value of the set of parameters.
1. Median
2. Mode
<span>3. Mean, this is considered to be the average in lay man's term.<span>
</span></span>
Add the x values together, then divide by two. Do the exact same thing for the y values. Hope that helped.
