MATHEMATICS A PRACTICAL ODYSSEY W/ACCESS
8th Edition
ISBN: 9780357537343
Author: Johnson
Publisher: CENGAGE L
expand_more
expand_more
format_list_bulleted
Concept explainers
Question
Chapter 8.7, Problem 10E
To determine
To sketch:
The graph of the given parabola and find its focus.
Expert Solution & Answer

Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Discuss and explain in the picture
Consider the cones
K =
= {(x1, x2, x3) | € R³ :
X3
≥√√√2x² + 3x²
M =
= {(21,22,23)
(x1, x2, x3) Є R³: x3 >
+
2
3
Prove that M = K*.
Hint: Adapt the proof from the lecture notes for finding the dual of the Lorentz cone. Alternatively, prove the
formula (AL)* = (AT)-¹L*, for any cone LC R³ and any 3 × 3 nonsingular matrix A with real entries, where
AL = {Ax = R³ : x € L}, and apply it to the 3-dimensional Lorentz cone with an appropriately chosen matrix
A.
I am unable to solve part b.
Chapter 8 Solutions
MATHEMATICS A PRACTICAL ODYSSEY W/ACCESS
Ch. 8.1 - When necessary, round off answers to one decimal...Ch. 8.1 - When necessary, round off answers to one decimal...Ch. 8.1 - When necessary, round off answers to one decimal...Ch. 8.1 - Prob. 4ECh. 8.1 - When necessary, round off answers to one decimal...Ch. 8.1 - When necessary, round off answers to one decimal...Ch. 8.1 - When necessary, round off answers to one decimal...Ch. 8.1 - When necessary, round off answers to one decimal...Ch. 8.1 - In Exercise 9 and 10, find a the area and b the...Ch. 8.1 - Prob. 10E
Ch. 8.1 - Prob. 11ECh. 8.1 - In Exercises 1120, find (a) the area and (b) the...Ch. 8.1 - In Exercises 1120, find (a) the area and (b) the...Ch. 8.1 - In Exercises 1120 find(a) the area and (b) the...Ch. 8.1 - In Exercises 1120, find (a) the area and (b) the...Ch. 8.1 - In Exercises 1120, find (a) the area and (b) the...Ch. 8.1 - Prob. 17ECh. 8.1 - In Exercises 1120 find a the area and b the...Ch. 8.1 - In Exercises 1120 find a the area and b the...Ch. 8.1 - In Exercises 1120 find a the area and b the...Ch. 8.1 - In Exercises 21 and 22, find (a) the area and (b)...Ch. 8.1 - Prob. 22ECh. 8.1 - A circular swimming pool has diameter 50ft and is...Ch. 8.1 - A rectangular swimming pool 30feet by 15feet is...Ch. 8.1 - Prob. 25ECh. 8.1 - Prob. 26ECh. 8.1 - Prob. 27ECh. 8.1 - Prob. 28ECh. 8.1 - You jog 34 mile due north, then 112 miles due...Ch. 8.1 - You walk 100 yards due south, then 120 yards due...Ch. 8.1 - A 10-foot ladder leans against a wall. If the base...Ch. 8.1 - Prob. 32ECh. 8.1 - Prob. 33ECh. 8.1 - Prob. 34ECh. 8.1 - The length of the edges of a triangular canvas are...Ch. 8.1 - Jim Mulios wants to fertilize his backyard. The...Ch. 8.1 - Reddies Pizza Bash is famous for its Loads-o-Meat...Ch. 8.1 - Prob. 38ECh. 8.1 - Prob. 39ECh. 8.1 - Prob. 40ECh. 8.1 - Prob. 41ECh. 8.1 - In Exercise3944, use the following information: in...Ch. 8.1 - Prob. 43ECh. 8.1 - Prob. 44ECh. 8.1 - Prob. 45ECh. 8.1 - Prob. 46ECh. 8.1 - Prob. 47ECh. 8.1 - Prob. 48ECh. 8.1 - Prob. 49ECh. 8.1 - Prob. 50ECh. 8.1 - Prob. 51ECh. 8.1 - Prob. 52ECh. 8.1 - Prob. 53ECh. 8.1 - Prob. 54ECh. 8.1 - Prob. 55ECh. 8.1 - Prob. 56ECh. 8.1 - Prob. 57ECh. 8.1 - Prob. 58ECh. 8.1 - Prob. 59ECh. 8.2 - When necessary, round off answers to two decimal...Ch. 8.2 - When necessary, round off answers to two decimal...Ch. 8.2 - When necessary, round off answers to two decimal...Ch. 8.2 - When necessary, round off answers to two decimal...Ch. 8.2 - Prob. 5ECh. 8.2 - When necessary, round off answers to two decimal...Ch. 8.2 - Prob. 7ECh. 8.2 - In Exercises714, find the volume of each figure....Ch. 8.2 - In Exercises714, find the volume of each figure....Ch. 8.2 - In Exercises714, find the volume of each figure....Ch. 8.2 - In Exercises714, find the volume of each figure....Ch. 8.2 - In Exercises714, find the volume of each figure....Ch. 8.2 - Prob. 13ECh. 8.2 - Prob. 14ECh. 8.2 - From a 10-inch-by-16-inch piece of cardboard,...Ch. 8.2 - From a 24-inch-square piece of cardboard, square...Ch. 8.2 - A grain silo consists of a cylinder with a...Ch. 8.2 - A propane gas tank consists of a cylinder with a...Ch. 8.2 - A regulation baseball hardball has a circumference...Ch. 8.2 - A regulation tennis ball has a diameter of 212...Ch. 8.2 - The diameter of the earth is approximately 7, 920...Ch. 8.2 - The diameter of the earth is approximately 7, 920...Ch. 8.2 - Prob. 23ECh. 8.2 - Prob. 24ECh. 8.2 - In Exercises 25 and 26, use the following...Ch. 8.2 - Prob. 26ECh. 8.2 - Prob. 27ECh. 8.2 - Golf balls are packaged three to a rectangular...Ch. 8.2 - Prob. 29ECh. 8.2 - Marcus Robinson bought an older house and wants to...Ch. 8.2 - Prob. 31ECh. 8.2 - The student union at the University of Utopia U2...Ch. 8.2 - A water storage tank is an upside-down cone, as...Ch. 8.2 - The diameter of a conical paper cup is 3.5inches....Ch. 8.2 - Prob. 35ECh. 8.2 - Prob. 36ECh. 8.2 - Prob. 37ECh. 8.2 - Prob. 38ECh. 8.2 - Prob. 39ECh. 8.2 - Prob. 40ECh. 8.2 - Prob. 41ECh. 8.2 - Prob. 42ECh. 8.2 - Prob. 43ECh. 8.3 - In Exercises 1-4. determine whether each...Ch. 8.3 - Prob. 2ECh. 8.3 - Prob. 3ECh. 8.3 - Prob. 4ECh. 8.3 - Prob. 5ECh. 8.3 - Prob. 6ECh. 8.3 - Prob. 7ECh. 8.3 - Prob. 8ECh. 8.3 - Following the method of Problem 48 of the Rhind...Ch. 8.3 - Prob. 10ECh. 8.3 - Prob. 11ECh. 8.3 - Prob. 12ECh. 8.3 - Prob. 13ECh. 8.3 - Prob. 14ECh. 8.3 - Prob. 15ECh. 8.3 - Prob. 16ECh. 8.3 - Find the perimeter of a triangle having sides with...Ch. 8.3 - Prob. 18ECh. 8.3 - Prob. 19ECh. 8.3 - Prob. 20ECh. 8.3 - Prob. 21ECh. 8.3 - Prob. 22ECh. 8.3 - Prob. 23ECh. 8.3 - Prob. 24ECh. 8.3 - Problem 41 of the Rhind Papyrus pertains to...Ch. 8.3 - Prob. 26ECh. 8.3 - Prob. 27ECh. 8.3 - Prob. 28ECh. 8.3 - Prob. 29ECh. 8.3 - Prob. 30ECh. 8.4 - In Exercises 1-4, the given triangles are similar....Ch. 8.4 - In Exercises 1-4, the given triangles are similar....Ch. 8.4 - In Exercises 1-4, the given triangles are similar....Ch. 8.4 - In Exercises 1-4, the given triangles are similar....Ch. 8.4 - A 6-foot-tall man casts a shadow of 3.5 feet at...Ch. 8.4 - Prob. 6ECh. 8.4 - Prob. 7ECh. 8.4 - Use Figure 8.67 and the method of rearrangement to...Ch. 8.4 - Find the length of the longest object that will...Ch. 8.4 - Find the length of the longest object that will...Ch. 8.4 - Find the length of the longest object that will...Ch. 8.4 - Find the length of the longest object that will...Ch. 8.4 - Prob. 13ECh. 8.4 - Prob. 14ECh. 8.4 - In Exercises 1318, use the two column method to...Ch. 8.4 - Prob. 16ECh. 8.4 - Prob. 17ECh. 8.4 - Prob. 18ECh. 8.4 - Prob. 19ECh. 8.4 - Prob. 20ECh. 8.4 - Prob. 21ECh. 8.4 - Prob. 22ECh. 8.4 - If a sphere is inscribed in a cylinder, the...Ch. 8.4 - Prob. 24ECh. 8.4 - Prob. 25ECh. 8.4 - Prob. 26ECh. 8.4 - Prob. 27ECh. 8.4 - Prob. 28ECh. 8.4 - Prob. 29ECh. 8.4 - The purpose of this project is to calculate the...Ch. 8.4 - Prob. 31ECh. 8.4 - Prob. 32ECh. 8.5 - In Exercises 18, use trigonometric ratios to find...Ch. 8.5 - In Exercises 18, use trigonometric ratios to find...Ch. 8.5 - In Exercises 18, use trigonometric ratios to find...Ch. 8.5 - In Exercises 18, use trigonometric ratios to find...Ch. 8.5 - In Exercises 18, use trigonometric ratios to find...Ch. 8.5 - In Exercises 18, use trigonometric ratios to find...Ch. 8.5 - In Exercises 18, use trigonometric ratios to find...Ch. 8.5 - Prob. 8ECh. 8.5 - In Exercises 926. use the given information to...Ch. 8.5 - Prob. 10ECh. 8.5 - Prob. 11ECh. 8.5 - Prob. 12ECh. 8.5 - Prob. 13ECh. 8.5 - Prob. 14ECh. 8.5 - Prob. 15ECh. 8.5 - Prob. 16ECh. 8.5 - Prob. 17ECh. 8.5 - Prob. 18ECh. 8.5 - Prob. 19ECh. 8.5 - Prob. 20ECh. 8.5 - Prob. 21ECh. 8.5 - Prob. 22ECh. 8.5 - Prob. 23ECh. 8.5 - Prob. 24ECh. 8.5 - Prob. 25ECh. 8.5 - Prob. 26ECh. 8.5 - A cable runs from the top of a building to a point...Ch. 8.5 - A support cable runs from the top of a telephone...Ch. 8.5 - Prob. 29ECh. 8.5 - Prob. 30ECh. 8.5 - Prob. 31ECh. 8.5 - Prob. 32ECh. 8.5 - Prob. 33ECh. 8.5 - Prob. 34ECh. 8.5 - A billboard is on top of a building. You are 125.0...Ch. 8.5 - Prob. 36ECh. 8.5 - You are hiking along a river and see a tall tree...Ch. 8.5 - Prob. 38ECh. 8.5 - Prob. 39ECh. 8.5 - Prob. 40ECh. 8.5 - Prob. 41ECh. 8.5 - Prob. 42ECh. 8.5 - Prob. 43ECh. 8.5 - Two observers are 500feet apart. Each measures the...Ch. 8.5 - Prob. 45ECh. 8.5 - Prob. 46ECh. 8.5 - Prob. 47ECh. 8.5 - Prob. 48ECh. 8.5 - Prob. 49ECh. 8.5 - Prob. 50ECh. 8.5 - Prob. 51ECh. 8.5 - Prob. 52ECh. 8.5 - Prob. 53ECh. 8.6 - Prob. 1ECh. 8.6 - Prob. 2ECh. 8.6 - Prob. 3ECh. 8.6 - In Exercise 1-4, answer the following questions....Ch. 8.6 - Prob. 5ECh. 8.6 - Prob. 6ECh. 8.6 - Prob. 7ECh. 8.6 - Prob. 8ECh. 8.6 - Prob. 9ECh. 8.6 - Prob. 10ECh. 8.6 - In Exercises 11-20, answer the following...Ch. 8.6 - Prob. 12ECh. 8.6 - Prob. 13ECh. 8.6 - Prob. 14ECh. 8.6 - Prob. 15ECh. 8.6 - Prob. 16ECh. 8.6 - Prob. 17ECh. 8.6 - Prob. 18ECh. 8.6 - Prob. 19ECh. 8.6 - In Exercises 11-20, answer the following...Ch. 8.6 - Prob. 21ECh. 8.6 - Prob. 22ECh. 8.6 - Prob. 23ECh. 8.6 - Prob. 24ECh. 8.6 - Prob. 25ECh. 8.7 - Prob. 1ECh. 8.7 - Prob. 2ECh. 8.7 - Prob. 3ECh. 8.7 - Prob. 4ECh. 8.7 - Prob. 5ECh. 8.7 - Prob. 6ECh. 8.7 - Prob. 7ECh. 8.7 - Prob. 8ECh. 8.7 - Prob. 9ECh. 8.7 - Prob. 10ECh. 8.7 - Prob. 11ECh. 8.7 - Prob. 12ECh. 8.7 - Prob. 13ECh. 8.7 - A satellite dish antenna has a parabolic reflector...Ch. 8.7 - Prob. 15ECh. 8.7 - Prob. 16ECh. 8.7 - Prob. 17ECh. 8.7 - In Exercises 17-24, sketch the graph and find the...Ch. 8.7 - Prob. 19ECh. 8.7 - Prob. 20ECh. 8.7 - Prob. 21ECh. 8.7 - Prob. 22ECh. 8.7 - Prob. 23ECh. 8.7 - Prob. 24ECh. 8.7 - Prob. 25ECh. 8.7 - Prob. 26ECh. 8.7 - Prob. 27ECh. 8.7 - Prob. 28ECh. 8.7 - Prob. 29ECh. 8.7 - In Exercises 29-36, sketch the graph and find the...Ch. 8.7 - Prob. 31ECh. 8.7 - Prob. 32ECh. 8.7 - Prob. 33ECh. 8.7 - Prob. 34ECh. 8.7 - Prob. 35ECh. 8.7 - Prob. 36ECh. 8.7 - Prob. 37ECh. 8.7 - Prob. 38ECh. 8.8 - Prob. 1ECh. 8.8 - Prob. 2ECh. 8.8 - Prob. 3ECh. 8.8 - Prob. 4ECh. 8.8 - Prob. 5ECh. 8.8 - Prob. 6ECh. 8.8 - Prob. 7ECh. 8.8 - Prob. 8ECh. 8.8 - In Exercises 7-12, answer the questions for the...Ch. 8.8 - Prob. 10ECh. 8.8 - Prob. 11ECh. 8.8 - Prob. 12ECh. 8.8 - Prob. 13ECh. 8.8 - Prob. 14ECh. 8.8 - Prob. 15ECh. 8.8 - Prob. 16ECh. 8.8 - Prob. 17ECh. 8.8 - Prob. 18ECh. 8.8 - Prob. 19ECh. 8.8 - What was the scandal of elementary geometry?Ch. 8.8 - Prob. 21ECh. 8.8 - Who was the first mathematician to affirm the...Ch. 8.8 - Prob. 23ECh. 8.8 - Prob. 24ECh. 8.8 - Prob. 25ECh. 8.8 - Prob. 26ECh. 8.8 - Prob. 27ECh. 8.9 - HANDS ON The Sierpinski gasket Using a...Ch. 8.9 - The Sierpinski carpet. The Sierpinski carpet is...Ch. 8.9 - The Mitsubishi gasket. Carefully and accurately...Ch. 8.9 - The square snowflake. Carefully and accurately...Ch. 8.9 - Prob. 5ECh. 8.9 - Prob. 6ECh. 8.9 - Prob. 7ECh. 8.9 - Prob. 8ECh. 8.9 - Prob. 9ECh. 8.9 - Find the approximate dimension of the Sierpinski...Ch. 8.9 - Find the approximate dimension of the Mitsubishi...Ch. 8.9 - Prob. 12ECh. 8.9 - Find the approximate dimension of the square...Ch. 8.9 - Prob. 14ECh. 8.9 - Prob. 15ECh. 8.9 - Prob. 16ECh. 8.9 - Prob. 17ECh. 8.9 - Prob. 18ECh. 8.9 - Prob. 19ECh. 8.9 - Prob. 20ECh. 8.9 - Prob. 21ECh. 8.9 - 22. Describe the self-similarity of the given...Ch. 8.9 - Prob. 23ECh. 8.9 - Prob. 24ECh. 8.9 - Prob. 25ECh. 8.9 - Name three naturally occurring objects other than...Ch. 8.9 - Prob. 27ECh. 8.9 - Prob. 28ECh. 8.9 - Prob. 29ECh. 8.9 - Prob. 30ECh. 8.9 - Prob. 31ECh. 8.9 - Prob. 32ECh. 8.9 - Prob. 33ECh. 8.9 - Prob. 35ECh. 8.9 - Prob. 36ECh. 8.10 - Prob. 1ECh. 8.10 - Prob. 2ECh. 8.10 - Finding the perimeter of a Sierpinski carpet. See...Ch. 8.10 - Finding the area of a Sierpinski carpet. See...Ch. 8.10 - Prob. 5ECh. 8.10 - A square snowflake. See Exercise 4 in Section 8.9...Ch. 8.10 - Prob. 7ECh. 8.10 - Prob. 8ECh. 8.10 - Describe an application of fractal area,...Ch. 8.10 - Design your own fractal. Discuss its...Ch. 8.CR - Prob. 1CRCh. 8.CR - Prob. 2CRCh. 8.CR - Prob. 3CRCh. 8.CR - Prob. 4CRCh. 8.CR - Prob. 5CRCh. 8.CR - Saturn the ringed planet revolves around the sun...Ch. 8.CR - Prob. 7CRCh. 8.CR - Prob. 8CRCh. 8.CR - Prob. 9CRCh. 8.CR - Prob. 10CRCh. 8.CR - Find the volume and surface area of Figure 8.194.Ch. 8.CR - Prob. 12CRCh. 8.CR - Prob. 13CRCh. 8.CR - An oval athletic field is the combination of a...Ch. 8.CR - From a 12inch-by-18inch piece of cardboard,...Ch. 8.CR - A regulation baseball hardball has a circumference...Ch. 8.CR - Prob. 17CRCh. 8.CR - Prob. 18CRCh. 8.CR - Prob. 19CRCh. 8.CR - Prob. 20CRCh. 8.CR - Prob. 21CRCh. 8.CR - Prob. 22CRCh. 8.CR - Prob. 23CRCh. 8.CR - Find the length of the longest object that will...Ch. 8.CR - Prob. 25CRCh. 8.CR - Prob. 26CRCh. 8.CR - In Exercise 26 and 27, use the two-column method...Ch. 8.CR - Prob. 28CRCh. 8.CR - A regular dodecagon 12-sided polygon is inscribed...Ch. 8.CR - Prob. 30CRCh. 8.CR - Prob. 31CRCh. 8.CR - Prob. 32CRCh. 8.CR - Prob. 33CRCh. 8.CR - Prob. 34CRCh. 8.CR - Prob. 35CRCh. 8.CR - Prob. 36CRCh. 8.CR - Prob. 37CRCh. 8.CR - Prob. 38CRCh. 8.CR - Prob. 39CRCh. 8.CR - Prob. 40CRCh. 8.CR - Prob. 41CRCh. 8.CR - Prob. 42CRCh. 8.CR - Prob. 43CRCh. 8.CR - Prob. 44CRCh. 8.CR - The box fractal. To create this shape, use the...Ch. 8.CR - Prob. 46CRCh. 8.CR - Prob. 47CRCh. 8.CR - Prob. 48CRCh. 8.CR - Draw a building in two-point perspective. viewed...Ch. 8.CR - Prob. 50CRCh. 8.CR - Prob. 51CRCh. 8.CR - Prob. 52CRCh. 8.CR - Prob. 53CR
Knowledge Booster
Learn more about
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.Similar questions
- Consider the sequence below: 1 1 1 (a) Express this sequence as a recurrence relation (b) Express this sequence in the form {a}=1 (c) Does this sequence converge or diverge? Justify your answer. Consider the sequence below: 1 1 1 1, 4' 9' 16' (a) Express this sequence in the form {ak}=1 (b) Does this sequence converge or diverge? Justify your answer. Consider the sequence below: 345 2. 4' 9' 16' ·} (a) Express this sequence in the form {a}1 (b) Does this sequence converge or diverge? Justify your answer.arrow_forwardLet M = M₁U M₂ UM3 and K M₁ = {(x1, x2) ER²: 2 ≤ x ≤ 8, 2≤ x ≤8}, M₂ = {(x1, x2)™ € R² : 4 ≤ x₁ ≤ 6, 0 ≤ x2 ≤ 10}, M3 = {(x1, x2) Є R²: 0 ≤ x₁ ≤ 10, 4≤ x ≤ 6}, ¯ = cone {(1, 2), (1,3)†} ≤ R². (a) Determine the set E(M,K) of efficient points of M with respect to K. (b) Determine the set P(M, K) of properly efficient points of M with respect to K.arrow_forward5.17 An aluminum curtain wall panel 12 feet high is attached to large concrete columns (top and bottom) when the temperature is 65°F. No provision is made for differen- tial thermal movement vertically. Because of insulation between them, the sun heats up the wall panel to 120°F but the column to only 80°F. Determine the consequent compressive stress in the curtain wall. CONCRETE COLUMNS CONNECTIONS Stress= ALUMINUM WALL PANEL 12'-0"arrow_forward
- 6.4 49 Find the centroid of the following cross-sections and planes. X=_ Y= C15 XAO (CENTERED) KW14x90arrow_forwardcalculate the maximum value of the directional derivativearrow_forward5.18 The steel rails of a continuous, straight railroad track are each 60 feet long and are laid with spaces be- tween their ends of 0.25 inch at 70°F. a. At what temperature will the rails touch end to end? b. What compressive stress will be produced in the rails if the temperature rises to 150°F? T= Stress= L= 60' 25 @T=70°Farrow_forward
- Strength of Materials Problems 5.16 A long concrete bearing wall has vertical expansion joints placed every 40 feet. Determine the required width of the gap in a joint if it is wide open at 20°F and just barely closed at 80°F. Assume α = 6 × 10-6/°F. Width= CONCRETE BEARING WALL EXPANSION JOINT 40' 40' 40' 293arrow_forward2) If Mand N be two water hyper Plane ofx Show that MUN and MN is hy Per Plane ofx with prove and Examplame. or 3) IS AUB is convex set and affine set or blensed set or symmetre setorsubsie.... Show that A and B is convex or affine or Hensedsed or symmetivce or subspace. 4) 18 MUN is independence show that Prove or ExPlane Mand Nave independend. or not. 5) Jet X be Vector Pace over I show that is xty tnx st Xty 3 fix→ F s-t f(x) (9) Jet Mand N be two blanced set of Xbe Vector space show tha MUNIS ansed setarrow_forwardCan you show me a step by step explanation please.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
- Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:CengageCollege AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage LearningCollege Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
- Trigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage

College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning

College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning


Trigonometry (MindTap Course List)
Trigonometry
ISBN:9781337278461
Author:Ron Larson
Publisher:Cengage Learning

Finding The Focus and Directrix of a Parabola - Conic Sections; Author: The Organic Chemistry Tutor;https://www.youtube.com/watch?v=KYgmOTLbuqE;License: Standard YouTube License, CC-BY