In Exercises 19 and 20 , determine whether the lines through the pairs of points are parallel. A ( 1 , − 2 ) , B ( − 3 , − 10 ) and C ( 1 , 5 ) , D ( − 1 , 1 )
In Exercises 19 and 20 , determine whether the lines through the pairs of points are parallel. A ( 1 , − 2 ) , B ( − 3 , − 10 ) and C ( 1 , 5 ) , D ( − 1 , 1 )
Solution Summary: The author explains that the lines through the given pairs of points are parallel. The formula to calculate the slope of the line between two points is m.
1 - Multiple Regression Equations and Predictions with XLMiner Analysis ToolPak (Structured)
Video
The owner of Showtime Movie Theaters, Inc., would like to predict weekly gross revenue as a function of advertising expenditures. Historical data for a
sample of eight weeks are entered into the Microsoft Excel Online file below. Use the XLMiner Analysis ToolPak to perform your regression analysis in the
designated areas of the spreadsheet.
Due to a recent change by Microsoft you will need to open the XLMiner Analysis ToolPak add-in manually from the home ribbon. Screenshot of ToolPak
X
Open spreadsheet
a. Develop an estimated regression equation with the amount of television advertising as the independent variable (to 2 decimals).
JAN
27
Revenue =
× TVAdv
+
b. Develop an estimated regression equation with both television advertising and newspaper advertising as the independent variables (to 2 decimals).
Revenue =
+
TVAdy +
NewsAdv
c. Is the estimated regression equation coefficient for…
A rug company weaves rugs that are made by repeating the design in Figure 12.49. Lengths of portions of the design are indicated in the figure. The yarn for the shaded portion of the design costs $5 per square unit, and the yarn for the unshaded portion of the design costs $3 per square unit. How much will the yarn for a 60-unit-by-84-unit rug cost? Explain your reasoning.
Consider an economy with three sectors, Chemicals & Metals, Fuels & Power, and Machinery. Chemicals sells 30% of its output to Fuels and 60% to Machinery and retains the rest. Fuels sells 70% of its output
to Chemicals and 20% to Machinery and retains the rest. Machinery sells 40% of its output to Chemicals and 30% to Fuels and retains the rest. Complete parts (a) through (c) below
a. Construct the exchange table for this economy.
Distribution of Output from:
Chemicals
Fuels
Machinery
(Type integers or decimals.)
Purchased by:
Chemicals
Fuels
Machinery
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, subject and related others by exploring similar questions and additional content below.
HOW TO FIND DETERMINANT OF 2X2 & 3X3 MATRICES?/MATRICES AND DETERMINANTS CLASS XII 12 CBSE; Author: Neha Agrawal Mathematically Inclined;https://www.youtube.com/watch?v=bnaKGsLYJvQ;License: Standard YouTube License, CC-BY