Answer:
Choice B
Step-by-step explanation:
We can perform a least squares regression model in Ms. Excel to determine the equation of the line of best fit for the data given;
The first step is to enter the data into any two adjacent columns of an excel workbook. Next, click on the Data ribbon followed by the Data Analysis tool pack. We then proceed to select regression from the pop-up window. The final step is to select the y range and the x range of values from our data.
Once we click ok, Excel returns our least squares regression model as shown in the attachment below.
The coefficient of X variable 1 is our slope.
F ( -1 ) = 2 · ( -1 )³ - 3 · ( -1 )² +7 =
= 2 · ( -1 ) - 3 · 1 + 7=
= - 2 - 3 + 7 = 2
The last one because y divide by x equals 5 for every single one
Let's denote width1 with a and length1 with b. Then, the area of this room is
![A_{1} = a*b](https://tex.z-dn.net/?f=A_%7B1%7D%20%3D%20a%2Ab%20)
Let's denote width2 with c and length2 with d. Then, the area of the second room is
![A_{2} = c*d](https://tex.z-dn.net/?f=A_%7B2%7D%20%3D%20c%2Ad%20)
The total area of the rooms is
Answer:
D
Step-by-step explanation:
0=> 0+0-4, 0=>-4 TRUE
0<0+0+1, 0<1 TRUE