11 laps times 5 miles equals 55 laps. If she gets 3 dollars for every lap she will make $165 for her school.
Given:
Consider the expression
simplifies to
.
To find:
The value of a.
Solution:
We have,
![ax(4x-2y-3)=24x^2-12xy-18x](https://tex.z-dn.net/?f=ax%284x-2y-3%29%3D24x%5E2-12xy-18x)
Using distributive property, we get
![4ax^2-2axy-3ax=24x^2-12xy-18x](https://tex.z-dn.net/?f=4ax%5E2-2axy-3ax%3D24x%5E2-12xy-18x)
On comparing the coefficients of
from both sides, we get
![4a=24](https://tex.z-dn.net/?f=4a%3D24)
![\Rightarrow a=6](https://tex.z-dn.net/?f=%5CRightarrow%20a%3D6)
Therefore, the value of a is 6.
The answer for that is -1.7
Answer:
False
Step-by-step explanation:
Given that two linear regression models have the same number of explanatory variables
First model has coefficient of determination as 0.45 while other
0.65
we know that R^2 is the proportion showing the variation of dependent because of variation in independent variables.
Hence a higher R square is always better because it ensures more linearity and hence more accuracy in the regression equation.
Hence 0.65 model is better than 0.45 model.
The given statement is false.