2x^3 - 3x² - 17x + 30 | x + 3
________________________ 
2x^3 + 6x² _________| 2x² - 9x + 10
_____-9x² - 17x ____ | 
_____-9x² - 27x ____ | 
_________ 10x + 30 _| 
_________ 10x + 30 _| 
________ _____ __0 _|

Ans = 2x² - 9x + 10

BRAINLIEST PLS!!!

7 0

3 years ago

A set of X and Y scores has a regression equation with a slope of b = 4. If the mean for the X values is MX = 2 and the mean for

Rom4ik [11]

Answer:

-2

Step-by-step explanation:

In a linear regression model we have the equation $Y = b_{1}X + b_{0}$ that relates $X$ and $Y$ , where $b_{1}$ is the estimator of the slope and $b_{0}$ is the estimator of the Y-intercept. The coefficients $b_{1}$ and $b_{0}$ can be estimated with the equations:

$b_{1} = \frac{S_{xy}}{{S^{2}}_{x}}$

$b_{0} = MY-b_{1}MX$ . Thus,

$b_{0} = 6 - (4)(2) = -2$

6 0

3 years ago