Answer:
8x^2 -6x-2
Step-by-step explanation:
formula= ab^2(- or +)b-ab
The slope in fraction form is -9/4 so converted to a decimal is -2.25
Answer:
rectangle
7/5=35
7+7+5+5=24
Step-by-step explanation:
shape name is rectangle
area is egual to length times width
perimeter is equal to length +width by 2
Answer:
2S = F
1.5R = S or R = S/1.5
So flour F and sugar S and raisins R
F + S + R = 550
2S + S + S/1.5. = 550
3S + 1.5S + S = 550*1.5
5.5 S = 550*1.5
S = 100*1.5
S = 150
R= 100
And so flour ie, F = 300
Answer:
The standard deviation of the residuals calculates how much the data points spread around the regression line. The result is used to measure the error of the regression line's predictability.
Step-by-step explanation:
<h2>How do you find the standard deviation around the regression line?</h2>
STDEV. S(errors) = (SQRT(1 minus R-squared)) x STDEV. S(Y). So, if you know the standard deviation of Y, and you know the correlation between Y and X, you can figure out what the standard deviation of the errors would be be if you regressed Y on X.
<h2>What does standard deviation tell you?</h2>
A standard deviation (or σ) is a measure of how dispersed the data is in relation to the mean. Low standard deviation means data are clustered around the mean, and high standard deviation indicates data are more spread out.
