Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
6th Edition
ISBN: 9781337111348
Author: Bruce Crauder, Benny Evans, Alan Noell
Publisher: Cengage Learning
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 3.1, Problem 13SBE
Slope If a building is
Expert Solution & Answer
Trending nowThis is a popular solution!
Students have asked these similar questions
Solve for the matrix X:
X
(2 7³) x + ( 2 ) - (112)
6
14
8
5.
Solve for the matrix X. (Hint: we can solve AX
-1
= B whenever A is invertible)
2
3
0
Χ
2
=
3
1
Write p(x) = 6+11x+6x² as a linear combination of ƒ (x) = 2+x+4x² and g(x) = 1−x+3x²
and h(x)=3+2x+5x²
Chapter 3 Solutions
Functions and Change: A Modeling Approach to College Algebra (MindTap Course List)
Ch. 3.1 - Suppose that the peak of the roof occurs 20 rather...Ch. 3.1 - Re-do the example under the assumption that the...Ch. 3.1 - Reminder Round all answers two decimal places...Ch. 3.1 - Reminder Round all answers to two decimals places...Ch. 3.1 - Reminder Round all answers to two decimal places...Ch. 3.1 - Reminder Round all answers to two decimal places...Ch. 3.1 - Reminder Round all answers to two decimals places...Ch. 3.1 - Prob. 6ECh. 3.1 - Slides A company manufactures slides. The top of...Ch. 3.1 - Felling a Tree A tree service is to fell a tree. A...
Ch. 3.1 - Reminder Round all answers to two decimal places...Ch. 3.1 - Reminder Round all answers to two decimal places...Ch. 3.1 - Reminder Round all answers to two decimals places...Ch. 3.1 - Reminder Round all answers two decimals places...Ch. 3.1 - Reminder Round all answers two decimals places...Ch. 3.1 - Reminder Round all answers to two decimals places...Ch. 3.1 - Reminder Round all answers two decimals places...Ch. 3.1 - Prob. 16ECh. 3.1 - Prob. 17ECh. 3.1 - Reminder Round all answers to two decimals places...Ch. 3.1 - Reminder Round all answers to two decimal places...Ch. 3.1 - Reminder Round all answers two decimals places...Ch. 3.1 - Reminder Round all answers two decimals places...Ch. 3.1 - Reminder Round all answers to two decimals places...Ch. 3.1 - Prob. 24ECh. 3.1 - Reminder Round all answers two decimals places...Ch. 3.1 - Reminder Round all answers two decimals places...Ch. 3.1 - A Ramp A ramp runs from the ground level to a...Ch. 3.1 - A Rope A rope is stretched from the top of a...Ch. 3.1 - Slope from the Rise and Run One end of a ladder is...Ch. 3.1 - Prob. 4SBECh. 3.1 - Height from Slope and Horizontal Distance The base...Ch. 3.1 - Height from Slope and Horizontal Distance The base...Ch. 3.1 - Horizontal Distance from Height and Slope A ladder...Ch. 3.1 - Horizontal Distance from Height and Slope A ladder...Ch. 3.1 - Slope from Two Points Take west to be the positive...Ch. 3.1 - Continuation of Exercise S-9 If you move 5...Ch. 3.1 - A Circus Tent You are at the center of a circus...Ch. 3.1 - More on the Circus Tent Assume that the roof of...Ch. 3.1 - Slope If a building is 100 feet tall and is viewed...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Slopes of Lines in the Coordinate Plane For...Ch. 3.1 - Prob. 23SBECh. 3.1 - Prob. 24SBECh. 3.1 - Prob. 25SBECh. 3.2 - TEST YOUR UNDERSTADING FOR EXAMPLE 3.3 The State...Ch. 3.2 - Prob. 2TUCh. 3.2 - TEST YOUR UNDERSTADING FOR EXAMPLE 3.5 A donation...Ch. 3.2 - Reminder Round all answers to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answers to two decimal places...Ch. 3.2 - Reminder Round all answers to two decimal places...Ch. 3.2 - Reminder Round all answers to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answers to two decimal places...Ch. 3.2 - Prob. 10ECh. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Prob. 15ECh. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Prob. 18ECh. 3.2 - Prob. 19ECh. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Prob. 22ECh. 3.2 - Prob. 23ECh. 3.2 - Reminder Round all answer to two decimal places...Ch. 3.2 - Prob. 25ECh. 3.2 - Prob. 26ECh. 3.2 - Reminder Round all answers to two decimal places...Ch. 3.2 - Prob. 28ECh. 3.2 - Prob. 29ECh. 3.2 - The Chess Club The number P of people in the chess...Ch. 3.2 - A Fast Car When I push the gas pedal to the floor,...Ch. 3.2 - Prob. 3SBECh. 3.2 - Prob. 4SBECh. 3.2 - Slope from Two Values Suppose that f is a linear...Ch. 3.2 - Prob. 6SBECh. 3.2 - Function Value from Slope and Run Suppose that f...Ch. 3.2 - Prob. 8SBECh. 3.2 - Run from Slope and Rise Suppose that f is a linear...Ch. 3.2 - Prob. 10SBECh. 3.2 - Linear Equation from Slope and Point Suppose that...Ch. 3.2 - Prob. 12SBECh. 3.2 - Linear Equation from Two Points Suppose that f is...Ch. 3.2 - Prob. 14SBECh. 3.2 - Prob. 15SBECh. 3.2 - Prob. 16SBECh. 3.2 - Properties of Linear Functions Exercises S-15...Ch. 3.2 - Prob. 18SBECh. 3.2 - Prob. 19SBECh. 3.2 - Properties of Linear Functions Exercises S-15...Ch. 3.2 - Properties of Linear Functions Exercises S-15...Ch. 3.2 - Prob. 22SBECh. 3.2 - Prob. 23SBECh. 3.2 - Prob. 24SBECh. 3.2 - Properties of Linear Functions Exercises S-15...Ch. 3.2 - Prob. 26SBECh. 3.2 - Prob. 27SBECh. 3.3 - TEST YOUR UNDERSTANDING FOR EXAMPLE 3.6 The...Ch. 3.3 - TEST YOUR UNDERSTANDING FOR EXAMPLE 3.7 Objects of...Ch. 3.3 - Employee Turnover The percentage of employees who...Ch. 3.3 - Cost of Adding Employees The following table shows...Ch. 3.3 - Making Ice Our ice machine is making ice in...Ch. 3.3 - Adjusted Gross Income An individuals adjusted...Ch. 3.3 - Price of Amazons Kindle The following table shows...Ch. 3.3 - 6. Tuition at American Private Universities The...Ch. 3.3 - Tuition at American Public Universities This is a...Ch. 3.3 - Total Cost The background for this exercise can be...Ch. 3.3 - Total Revenue and Profit This is a continuation of...Ch. 3.3 - Dropping Rocks on Mars The behavior of objects...Ch. 3.3 - The Kelvin Temperature Scale Physicists and...Ch. 3.3 - Further Verification of Newtons Second LawThis...Ch. 3.3 - Market supply The following table shows the...Ch. 3.3 - Market Demand This is a continuation of Exercise...Ch. 3.3 - Time Velocity 2.0 27.9 2.5 33.8 3.0 39.7 3.5 45.6...Ch. 3.3 - High School Graduates The following table shows...Ch. 3.3 - Later High School Graduates This is a continuation...Ch. 3.3 - Tax Table Here are selected entries from the 2014...Ch. 3.3 - Sound Speed in Oceans Marine scientists use a...Ch. 3.3 - Focal Length A refracting telescope has a main...Ch. 3.3 - Prob. 21ECh. 3.3 - Prob. 22ECh. 3.3 - When Date Are Unevenly speed. If data are evenly...Ch. 3.3 - When Date Are Unevenly speed. If data are evenly...Ch. 3.3 - Testing Data for Linearity Test the following data...Ch. 3.3 - Prob. 2SBECh. 3.3 - Making a Linear Model Make a linear model for the...Ch. 3.3 - Making a Linear Model The data in Exercise S-2 are...Ch. 3.3 - Graphing Discrete Data Plot the data from the...Ch. 3.3 - Prob. 6SBECh. 3.3 - Prob. 7SBECh. 3.3 - Prob. 8SBECh. 3.3 - Prob. 9SBECh. 3.3 - Prob. 10SBECh. 3.3 - Plotting Data and Functions In Exercise S-11...Ch. 3.3 - Prob. 12SBECh. 3.3 - Prob. 13SBECh. 3.3 - Prob. 14SBECh. 3.3 - Prob. 15SBECh. 3.3 - Prob. 16SBECh. 3.3 - Prob. 17SBECh. 3.3 - Prob. 18SBECh. 3.3 - Prob. 19SBECh. 3.3 - Prob. 20SBECh. 3.3 - Prob. 21SBECh. 3.3 - Prob. 22SBECh. 3.3 - Prob. 23SBECh. 3.3 - Prob. 24SBECh. 3.3 - Prob. 25SBECh. 3.4 - TEST YOUR UNDERSTANDING The following table shows...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Prob. 19ECh. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Prob. 22ECh. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - Remainder Round all answers to two decimal places...Ch. 3.4 - 3.4 SKILL BUILDING EXERCISES Using the Regression...Ch. 3.4 - Prob. 2SBECh. 3.4 - 3.4 SKILL BUILDING EXERCISES Using the Regression...Ch. 3.4 - 3.4 SKILL BUILDING EXERCISES Using the Regression...Ch. 3.4 - Prob. 5SBECh. 3.4 - 3.4 SKILL BUILDING EXERCISES Getting Regression...Ch. 3.4 - 3.4 SKILL BUILDING EXERCISES Getting Regression...Ch. 3.4 - Prob. 8SBECh. 3.4 - Prob. 9SBECh. 3.4 - Prob. 10SBECh. 3.4 - 3.4 SKILL BUILDING EXERCISES Getting Regression...Ch. 3.4 - Find the equation of the regression line for the...Ch. 3.4 - 3.4 SKILL BUILDING EXERCISES Getting Regression...Ch. 3.4 - 3.4 SKILL BUILDING EXERCISES Getting Regression...Ch. 3.4 - Prob. 15SBECh. 3.4 - Prob. 16SBECh. 3.4 - Prob. 17SBECh. 3.4 - Prob. 18SBECh. 3.4 - Prob. 19SBECh. 3.4 - Prob. 20SBECh. 3.4 - Prob. 21SBECh. 3.4 - Prob. 22SBECh. 3.5 - TEST YOUR UNDERSTANDING For dessert, we need to...Ch. 3.5 - Investing You have 30, 000 to invest. You will...Ch. 3.5 - Reminder Round all answers to two decimal places...Ch. 3.5 - Motherboards A manufacturer produces motherboards...Ch. 3.5 - Reminder Round all answers to two decimal places...Ch. 3.5 - A Party You have 36 to spend on refreshments for a...Ch. 3.5 - Mixing Feed A milling company wants to mix alfalfa...Ch. 3.5 - An Order for Bulbs You have space in your garden...Ch. 3.5 - American Dollars and British Pounds Assume that at...Ch. 3.5 - Population Growth There are originally 255 foxes...Ch. 3.5 - Reminder Round all answers to two decimal places...Ch. 3.5 - Reminder Round all answers to two decimal places...Ch. 3.5 - Reminder Round all answers to two decimal places...Ch. 3.5 - Reminder Round all answers to two decimal places...Ch. 3.5 - Reminder Round all answers to two decimal places...Ch. 3.5 - Fahrenheit and Celsius If you know the temperature...Ch. 3.5 - A Bag of coins A bag contains 30 coins, some dimes...Ch. 3.5 - Prob. 17ECh. 3.5 - Reminder Round all answers to two decimal places...Ch. 3.5 - Prob. 19ECh. 3.5 - Prob. 20ECh. 3.5 - Prob. 21ECh. 3.5 - A system of Three equations in Three unknowns...Ch. 3.5 - Prob. 23ECh. 3.5 - Prob. 1SBECh. 3.5 - SKILL BIULDIND EXERCISES What Is the Solution For...Ch. 3.5 - Setting Up System of Equations In Exercises S-3...Ch. 3.5 - Setting Up System of Equations In Exercises S-3...Ch. 3.5 - Setting Up System of Equations In Exercises S-3...Ch. 3.5 - Setting up System of Equations in Exercises S-3...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Systems That May Be Solved by Hand or With...Ch. 3.5 - Prob. 20SBECh. 3.5 - Prob. 21SBECh. 3.5 - Prob. 22SBECh. 3.5 - System Not Easily solved by Hand Calculation....Ch. 3.5 - Prob. 24SBECh. 3.5 - Prob. 25SBECh. 3.5 - Prob. 26SBECh. 3.5 - Prob. 27SBECh. 3.CR - Drainage Pipe Slope Suppose a drainage pipe slopes...Ch. 3.CR - Prob. 2CRCh. 3.CR - A Ramp into a Van Suppose a ramp is used to move a...Ch. 3.CR - Reminder Round all answers to two decimal places...Ch. 3.CR - Prob. 5CRCh. 3.CR - Reminder Round all answers to two decimal places...Ch. 3.CR - Prob. 7CRCh. 3.CR - Working on a Commission A certain man works in...Ch. 3.CR - Reminder Round all answers to two decimal places...Ch. 3.CR - Prob. 10CRCh. 3.CR - Prob. 11CRCh. 3.CR - Marginal Tax Rate The following table shows tax...Ch. 3.CR - Prob. 13CRCh. 3.CR - Prob. 14CRCh. 3.CR - Life Expectancy The following table shows the...Ch. 3.CR - XYZ Corporation Stock Prices The following table...Ch. 3.CR - Prob. 17CRCh. 3.CR - Prob. 18CRCh. 3.CR - Bills A stack contains 400 worth of paper money...Ch. 3.CR - Mixing You're mixing blue paint with yellow paint...Ch. 3.FR2 - Prob. 1ECh. 3.FR2 - Prob. 2ECh. 3.FR2 - Prob. 3ECh. 3.FR2 - Prob. 4ECh. 3.FR2 - Prob. 5ECh. 3.FR2 - Prob. 6ECh. 3.FR2 - Prob. 7ECh. 3.FR2 - Prob. 8ECh. 3.FR2 - Prob. 9ECh. 3.FR3 - Prob. 1TUCh. 3.FR3 - Prob. 1ECh. 3.FR3 - Prob. 2ECh. 3.FR3 - Prob. 3ECh. 3.FR3 - Prob. 4ECh. 3.FR3 - Prob. 5ECh. 3.FR3 - Prob. 6ECh. 3.FR3 - Prob. 7ECh. 3.FR3 - Prob. 8ECh. 3.FR3 - Prob. 9ECh. 3.FR3 - Prob. 10ECh. 3.FR3 - Prob. 11ECh. 3.FR3 - Prob. 12ECh. 3.FR3 - Prob. 13E
Knowledge Booster
Learn more about
Need a deep-dive on the concept behind this application? Look no further. Learn more about this topic, algebra and related others by exploring similar questions and additional content below.Similar questions
- 3. Let M = (a) - (b) 2 −1 1 -1 2 7 4 -22 Find a basis for Col(M). Find a basis for Null(M).arrow_forwardSchoology X 1. IXL-Write a system of X Project Check #5 | Schx Thomas Edison essay, x Untitled presentation ixl.com/math/algebra-1/write-a-system-of-equations-given-a-graph d.net bookmarks Play Gimkit! - Enter... Imported Imported (1) Thomas Edison Inv... ◄›) What system of equations does the graph show? -8 -6 -4 -2 y 8 LO 6 4 2 -2 -4 -6 -8. 2 4 6 8 Write the equations in slope-intercept form. Simplify any fractions. y = y = = 00 S olo 20arrow_forwardEXERCICE 2: 6.5 points Le plan complexe est rapporté à un repère orthonormé (O, u, v ).Soit [0,[. 1/a. Résoudre dans l'équation (E₁): z2-2z+2 = 0. Ecrire les solutions sous forme exponentielle. I b. En déduire les solutions de l'équation (E2): z6-2 z³ + 2 = 0. 1-2 2/ Résoudre dans C l'équation (E): z² - 2z+1+e2i0 = 0. Ecrire les solutions sous forme exponentielle. 3/ On considère les points A, B et C d'affixes respectives: ZA = 1 + ie 10, zB = 1-ie 10 et zc = 2. a. Déterminer l'ensemble EA décrit par le point A lorsque e varie sur [0, 1. b. Calculer l'affixe du milieu K du segment [AB]. C. Déduire l'ensemble EB décrit par le point B lorsque varie sur [0,¹ [. d. Montrer que OACB est un parallelogramme. e. Donner une mesure de l'angle orienté (OA, OB) puis déterminer pour que OACB soit un carré.arrow_forward
- 2 Use grouping to factor: 10x + 13x + 3 = 0 Identify A B and C in the chart below feach responce inarrow_forward2 Use grouping to factor: 10x² + 13x + 3 = 0 Identify A, B, and C in the chart below. (each rearrow_forward2 Use grouping to factor: 10x + 13x + 3 = 0 Identify A B and C in the chart below feach responce inarrow_forward
- Use grouping to fully factor: x³ + 3x² - 16x - 48 = 0 3 2arrow_forwardName: Tay Jones Level Two Date: Algebra 3 Unit 3: Functions and Equations Practice Assessment Class: #7-OneNote 1. The function f(x) = x² is transformed in the following functions. List the vertex for each function, circle whether the function opens up or down, and why. All three parts must be correct to receive Level 2 points. You can receive points for a, b, and c. a) g(x) = -2(x+5)² Vertex: Opens Up Opens Down Why? ais negative -2 Vertex: b) g(x) = (x + 2)² - 3 c) g(x) = -4(x + 2)² + 2 Opens Up Opens Down Vertex: Opens Up Opens Down Why? 4 Ca is negative) Why? his positive 2. The graph of the function f(x) is shown below. Find the domain, range, and end behavior. Then list the values of x for which the function values are increasing and decreasing. f(x) Domain: End Behavior: As x → ∞o, f(x) -> -6 As x, f(x) -> Range: Where is it Increasing? (002] Where is it Decreasing? (1,00)arrow_forwardShow what to do on the graph visually please!arrow_forward
- The county's new asphalt paving machine can surface 1 km of highway in 10 h. A much older machine can surface 1 km in 18 h. How long will it take them to surface 21 km of highway if they start at opposite ends and work day and night?arrow_forward3. Write a system of linear equations in slope intercept form that has exactly one solution at the point (3, 4), such that one line has positive slope (but not 1) and the other line has negative slope (but not "1). Also write your system of equations with both equations written in standard form with out any fractions 8- 7 8 5 4 3 -2- + -8-7-6-5-4-3-2-1 1 2 3 -1 2 - ° 4 -5 - -8arrow_forward2. Write a system of linear equations in slope-intercept form has exactly one solution at the point (3, 4), such that both lines have negative slope (but neither one has slope of 1). Also write your system of equations with both equations written in standard form without any fractions. B 0 5 4 3 -2 1 -8-7-6-5-4-3-2 -1 12 3 -1 2 -3 -5 6 -7 -8arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Elementary AlgebraAlgebraISBN:9780998625713Author:Lynn Marecek, MaryAnne Anthony-SmithPublisher:OpenStax - Rice University
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
Intermediate AlgebraAlgebraISBN:9781285195728Author:Jerome E. Kaufmann, Karen L. SchwittersPublisher:Cengage Learning
Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
Big Ideas Math A Bridge To Success Algebra 1: Stu...AlgebraISBN:9781680331141Author:HOUGHTON MIFFLIN HARCOURTPublisher:Houghton Mifflin Harcourt
Elementary Algebra
Algebra
ISBN:9780998625713
Author:Lynn Marecek, MaryAnne Anthony-Smith
Publisher:OpenStax - Rice University
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
Intermediate Algebra
Algebra
ISBN:9781285195728
Author:Jerome E. Kaufmann, Karen L. Schwitters
Publisher:Cengage Learning
Algebra: Structure And Method, Book 1
Algebra
ISBN:9780395977224
Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. Cole
Publisher:McDougal Littell
Big Ideas Math A Bridge To Success Algebra 1: Stu...
Algebra
ISBN:9781680331141
Author:HOUGHTON MIFFLIN HARCOURT
Publisher:Houghton Mifflin Harcourt
Trigonometric Ratios; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=9-eHMMpQC2k;License: Standard YouTube License, CC-BY