EBK MATHEMATICS FOR THE TRADES
10th Edition
ISBN: 8220100803055
Author: SAUNDERS
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Videos
Textbook Question
Chapter 10.1, Problem 13CE
C. Solve the following problems involving triangles.
Each of the following right triangles is an example of one of the three “special triangles” described in this chapter. Find the quantities indicated without using the Pythagorean theorem. (Round the sides to the nearest tenth if necessary.)
- (a) a = __________
- (b) A = __________
- (c) B = __________
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
5. Let X be a positive random variable with finite variance, and let A = (0, 1).
Prove that
P(X AEX) 2 (1-A)² (EX)²
EX2
6. Let, for p = (0, 1), and xe R. X be a random variable defined as follows:
P(X=-x) = P(X = x)=p. P(X=0)= 1-2p.
Show that there is equality in Chebyshev's inequality for X.
This means that Chebyshev's inequality, in spite of being rather crude, cannot be
improved without additional assumptions.
4. Prove that, for any random variable X, the minimum of EIX-al is attained for
a = med (X).
Chapter 10 Solutions
EBK MATHEMATICS FOR THE TRADES
Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Prob. 7AECh. 10.1 - Label the shaded angles as acute, obtuse, right,...Ch. 10.1 - Prob. 9AECh. 10.1 - Prob. 10AE
Ch. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Prob. 3BECh. 10.1 - Prob. 4BECh. 10.1 - Prob. 5BECh. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Prob. 7BECh. 10.1 - Write the following angles in degrees and minutes....Ch. 10.1 - Prob. 9BECh. 10.1 - Prob. 10BECh. 10.1 - Prob. 11BECh. 10.1 - Write the following angles in decimal degrees....Ch. 10.1 - Prob. 13BECh. 10.1 - Prob. 14BECh. 10.1 - Write the following angles in decimal degrees....Ch. 10.1 - Prob. 16BECh. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Write the following angles in radians. (Round to...Ch. 10.1 - Prob. 23BECh. 10.1 - Prob. 24BECh. 10.1 - Write the following angles in degrees. (Round to...Ch. 10.1 - Write the following angles in degrees. (Round to...Ch. 10.1 - Write the following angles in degrees. (Round to...Ch. 10.1 - Write the following angles in degrees. (Round to...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - Prob. 4CECh. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - C. Solve the following problems involving...Ch. 10.1 - Prob. 14CECh. 10.1 - Prob. 15CECh. 10.1 - Prob. 16CECh. 10.1 - Prob. 17CECh. 10.1 - C. Solve the following problems involving...Ch. 10.1 - Prob. 19CECh. 10.1 - Prob. 20CECh. 10.1 - Prob. 21CECh. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Prob. 23CECh. 10.1 - Prob. 24CECh. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Calculate the arc length S and area A for each of...Ch. 10.1 - Sheet Metal Trades A transition duct is...Ch. 10.1 - Prob. 2DECh. 10.1 - Landscaping In problem 2, if shrubs are planted...Ch. 10.1 - Construction The outfield fencing for a Little...Ch. 10.1 - Construction In problem 4, topsoil must be bought...Ch. 10.1 - Life Skills If a car travels 725 miles in 12.5...Ch. 10.1 - Prob. 7DECh. 10.1 - Prob. 8DECh. 10.1 - Prob. 9DECh. 10.1 - Prob. 10DECh. 10.1 - Prob. 11DECh. 10.1 - Plumbing For the connection shown here, calculate...Ch. 10.1 - Prob. 13DECh. 10.1 - Prob. 14DECh. 10.1 - Agriculture A grain conveyor 70 feet long is...Ch. 10.1 - Machine Trades Find the dimension a on the metal...Ch. 10.1 - Metalworking Find the depth d of the V-slot shown...Ch. 10.1 - Metalworking Find the length w in the casting...Ch. 10.1 - Roofing Find the length L of the rafter in the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - For each of the following triangles, calculate the...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Prob. 9BECh. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Prob. 11BECh. 10.2 - Prob. 12BECh. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Prob. 15BECh. 10.2 - Prob. 16BECh. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Prob. 18BECh. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find each of the following trig values. (Round to...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Prob. 8CECh. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angel A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.2 - Find the acute angle A. (Round to the nearest...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - Prob. 6AECh. 10.3 - Prob. 7AECh. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - Prob. 4BECh. 10.3 - Prob. 5BECh. 10.3 - Prob. 6BECh. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each right triangle, find the missing quantity...Ch. 10.3 - For each problem, use the given information to...Ch. 10.3 - For each problem, use the given information to...Ch. 10.3 - Prob. 3CECh. 10.3 - For each problem, use the given information to...Ch. 10.3 - For each problem, use the given information to...Ch. 10.3 - For each problem, use the given information to...Ch. 10.3 - Prob. 7CECh. 10.3 - Prob. 8CECh. 10.3 - Prob. 9CECh. 10.3 - Manufacturing The most efficient operating angle...Ch. 10.3 - Metalworking Find the angle m in the casting...Ch. 10.3 - Plumbing A pipe fitter must connect a pipeline to...Ch. 10.3 - Practical Applications
Aviation A helicopter,...Ch. 10.3 - Practical Applications
Metalworking Find the angle...Ch. 10.3 - Practical Applications
Construction A road has a...Ch. 10.3 - Roofing Find the length of the rafter shown....Ch. 10.3 - Practical Applications
Metalworking Three holes...Ch. 10.3 - Practical Applications
Machine Trades Find the...Ch. 10.3 - General Trades A 20-ft ladder leans against a...Ch. 10.3 - Prob. 11DECh. 10.3 - Prob. 12DECh. 10.3 - Prob. 13DECh. 10.3 - Machine Trades Find the missing dimension d in the...Ch. 10.3 - Prob. 15DECh. 10.3 - Machine Trades Find the included angle m of the...Ch. 10.3 - Machine Trades Ten holes are spaced equally around...Ch. 10.3 - Prob. 18DECh. 10.3 - Construction The Santa Teresa municipal building...Ch. 10.3 - Construction A gable roof is to be constructed...Ch. 10.3 - Prob. 21DECh. 10.3 - Prob. 22DECh. 10.3 - Prob. 23DECh. 10.3 - Surveying A surveyor wants to estimate the width...Ch. 10.3 - Prob. 25DECh. 10.3 - Agriculture A grain conveyor is set at an angle of...Ch. 10.4 - Solve each triangle. a = 6.5 ft, A = 43, B = 62Ch. 10.4 - Solve each triangle. b = 17.2 in., C = 44.0, B =...Ch. 10.4 - Prob. 3AECh. 10.4 - Solve each triangle. c = 2300 yd, C = 120, B = 35Ch. 10.4 - Solve each triangle. a = 96.0 in., b = 58.0 in., B...Ch. 10.4 - Solve each triangle. b = 265 ft, c = 172 ft, C =...Ch. 10.4 - Prob. 7AECh. 10.4 - Prob. 8AECh. 10.4 - Solve each triangle. a = 625 ft, c = 189 ft, B =...Ch. 10.4 - Solve each triangle. b = 1150 yd, c = 3110 yd, A =...Ch. 10.4 - Solve each triangle. a = 27.2 in., b = 33.4 in., c...Ch. 10.4 - Prob. 12AECh. 10.4 - Prob. 13AECh. 10.4 - Prob. 14AECh. 10.4 - Prob. 15AECh. 10.4 - Prob. 16AECh. 10.4 - Construction In the channel shown in the figure,...Ch. 10.4 - Construction In the channel shown in the figure,...Ch. 10.4 - Construction A triangular traffic island has sides...Ch. 10.4 - Construction The lot shown in the figure is split...Ch. 10.4 - Carpentry Two sides of the sloped ceiling shown in...Ch. 10.4 - Machine Trades For the crankshaft shown in the...Ch. 10.4 - Prob. 7BECh. 10 - Convert angles between decimal degrees and degrees...Ch. 10 - Find the values of trig ratios. (a) sin 26 (b) cos...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - Prob. 4PCh. 10 - Find the angle when given the value of a trig...Ch. 10 - Round sides to the nearest tenth and angles to the...Ch. 10 - Prob. 7PCh. 10 - Prob. 1APSCh. 10 - Convert the following angles as indicated. Express...Ch. 10 - Convert the following angles as indicated. Express...Ch. 10 - Prob. 4APSCh. 10 - Prob. 5APSCh. 10 - Prob. 6APSCh. 10 - Prob. 7APSCh. 10 - Prob. 8APSCh. 10 - Prob. 9APSCh. 10 - Prob. 10APSCh. 10 - Convert the following angles as indicated. Express...Ch. 10 - Convert the following angles as indicated. Express...Ch. 10 - Convert the following angles as indicated. Express...Ch. 10 - Prob. 14APSCh. 10 - Prob. 15APSCh. 10 - Convert the following angles as indicated. Express...Ch. 10 - Calculate the arc length S and area A for each of...Ch. 10 - Calculate the arc length S and area A for each of...Ch. 10 - Calculate the arc length S and area A for each of...Ch. 10 - Calculate the arc length S and area A for each of...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Prob. 7CPSCh. 10 - Prob. 8CPSCh. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Prob. 12CPSCh. 10 - Prob. 13CPSCh. 10 - Use a calculator to find the following trig values...Ch. 10 - Prob. 15CPSCh. 10 - Prob. 16CPSCh. 10 - Prob. 17CPSCh. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Use a calculator to find the following trig values...Ch. 10 - Prob. 24CPSCh. 10 - Prob. 25CPSCh. 10 - Prob. 26CPSCh. 10 - Use the special right triangle relationships to...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - Use the special right triangle relationships to...Ch. 10 - For each problem, use the given information to...Ch. 10 - For each problem, use the given information to...Ch. 10 - For each problem, use the given information to...Ch. 10 - For each problem, use the given information to...Ch. 10 - Prob. 9DPSCh. 10 - For each problem, use the given information to...Ch. 10 - For each problem, use the given information to...Ch. 10 - Prob. 12DPSCh. 10 - Solve the following oblique triangles. a = 17.9...Ch. 10 - Prob. 2EPSCh. 10 - Solve the following oblique triangles....Ch. 10 - Solve each triangle. b = 87.5 in., c = 23.4 in., A...Ch. 10 - Prob. 5EPSCh. 10 - Solve the following oblique triangles....Ch. 10 - Solve the following oblique triangles....Ch. 10 - Solve the following oblique triangles....Ch. 10 - Machine Trades What height of gauge blocks is...Ch. 10 - Prob. 2FPSCh. 10 - Carpentry Six holes are spaced evenly around a...Ch. 10 - Machine Trades Find the angle of taper of the...Ch. 10 - Electrical Trades A TV technician installs an...Ch. 10 - Construction A bridge approach shown in the figure...Ch. 10 - Machine Trades The helix angle of a screw is the...Ch. 10 - Construction Find the lengths x and y of the beams...Ch. 10 - Prob. 9FPSCh. 10 - Machine Trades Find the head angle a of the screw...Ch. 10 - Machine Trades A machinist makes a cut 13.8 cm...Ch. 10 - Drafting Determine the center-to-center...Ch. 10 - Machine Trades If a lathe makes 286 revolutions in...Ch. 10 - Prob. 14FPSCh. 10 - Construction An amphitheater is in the shape of a...Ch. 10 - Prob. 16FPSCh. 10 - Agriculture Barley has an angle of repose R of 28...
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
- 8. Recall, from Sect. 2.16.4, the likelihood ratio statistic, Ln, which was defined as a product of independent, identically distributed random variables with mean 1 (under the so-called null hypothesis), and the, sometimes more convenient, log-likelihood, log L, which was a sum of independent, identically distributed random variables, which, however, do not have mean log 1 = 0. (a) Verify that the last claim is correct, by proving the more general statement, namely that, if Y is a non-negative random variable with finite mean, then E(log Y) log(EY). (b) Prove that, in fact, there is strict inequality: E(log Y) < log(EY), unless Y is degenerate. (c) Review the proof of Jensen's inequality, Theorem 5.1. Generalize with a glimpse on (b).arrow_forward2. Derive the component transformation equations for tensors shown be- low where [C] = [BA] is the direction cosine matrix from frame A to B. B[T] = [C]^[T][C]T 3. The transport theorem for vectors shows that the time derivative can be constructed from two parts: the first is an explicit frame-dependent change of the vector whereas the second is an active rotational change of the vector. The same holds true for tensors. Starting from the previous result, derive a version of transport theorem for tensors. [C] (^[T])[C] = dt d B dt B [T] + [WB/A]B[T] – TWB/A] (10 pt) (7pt)arrow_forwardUse the graph of the function y = f (x) to find the value, if possible. f(x) 8 7 6 Q5 y 3 2 1 x -8 -7 -6 -5 -4 -3 -2 -1 1 2 3 4 5 6 7 8 -1 -2 -3 -4 -5 -6 -7 -8+ Olim f(z) x-1+ O Limit does not exist.arrow_forward
- 3. Prove that, for any random variable X, the minimum of E(X - a)² is attained for a = EX. Provedarrow_forwardShade the areas givenarrow_forward7. Cantelli's inequality. Let X be a random variable with finite variance, o². (a) Prove that, for x ≥ 0, P(X EX2x)≤ 02 x² +0² 202 P(|X - EX2x)<≤ (b) Find X assuming two values where there is equality. (c) When is Cantelli's inequality better than Chebyshev's inequality? (d) Use Cantelli's inequality to show that med (X) - EX ≤ o√√3; recall, from Proposition 6.1, that an application of Chebyshev's inequality yields the bound o√√2. (e) Generalize Cantelli's inequality to moments of order r 1.arrow_forward
- The college hiking club is having a fundraiser to buy new equipment for fall and winter outings. The club is selling Chinese fortune cookies at a price of $2 per cookie. Each cookie contains a piece of paper with a different number written on it. A random drawing will determine which number is the winner of a dinner for two at a local Chinese restaurant. The dinner is valued at $32. Since fortune cookies are donated to the club, we can ignore the cost of the cookies. The club sold 718 cookies before the drawing. Lisa bought 13 cookies. Lisa's expected earnings can be found by multiplying the value of the dinner by the probability that she will win. What are Lisa's expected earnings? Round your answer to the nearest cent.arrow_forwardThe Honolulu Advertiser stated that in Honolulu there was an average of 659 burglaries per 400,000 households in a given year. In the Kohola Drive neighborhood there are 321 homes. Let r be the number of homes that will be burglarized in a year. Use the formula for Poisson distribution. What is the value of p, the probability of success, to four decimal places?arrow_forwardThe college hiking club is having a fundraiser to buy new equipment for fall and winter outings. The club is selling Chinese fortune cookies at a price of $2 per cookie. Each cookie contains a piece of paper with a different number written on it. A random drawing will determine which number is the winner of a dinner for two at a local Chinese restaurant. The dinner is valued at $32. Since fortune cookies are donated to the club, we can ignore the cost of the cookies. The club sold 718 cookies before the drawing. Lisa bought 13 cookies. Lisa's expected earnings can be found by multiplying the value of the dinner by the probability that she will win. What are Lisa's expected earnings? Round your answer to the nearest cent.arrow_forward
- What was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Thanks to Florence Nightingale and the British census of 1851, we have the following information (based on data from the classic text Notes on Nursing, by Florence Nightingale). Note: In 1851 there were 25,466 nurses in Great Britain. Furthermore, Nightingale made a strict distinction between nurses and domestic servants. Use a histogram and graph the probability distribution. Using the graph of the probability distribution determine the probability that a British nurse selected at random in 1851 would be 40 years of age or older. Round your answer to nearest thousandth. Age range (yr) 20–29 30–39 40–49 50–59 60–69 70–79 80+ Midpoint (x) 24.5 34.5 44.5 54.5 64.5 74.5 84.5 Percent of nurses 5.7% 9.7% 19.5% 29.2% 25.0% 9.1% 1.8%arrow_forwardWhat was the age distribution of nurses in Great Britain at the time of Florence Nightingale? Thanks to Florence Nightingale and the British census of 1851, we have the following information (based on data from the classic text Notes on Nursing, by Florence Nightingale). Note: In 1851 there were 25,466 nurses in Great Britain. Furthermore, Nightingale made a strict distinction between nurses and domestic servants. Use a histogram and graph the probability distribution. Using the graph of the probability distribution determine the probability that a British nurse selected at random in 1851 would be 40 years of age or older. Round your answer to nearest thousandth. Age range (yr) 20–29 30–39 40–49 50–59 60–69 70–79 80+ Midpoint (x) 24.5 34.5 44.5 54.5 64.5 74.5 84.5 Percent of nurses 5.7% 9.7% 19.5% 29.2% 25.0% 9.1% 1.8%arrow_forwardThere are 4 radar stations and the probability of a single radar station detecting an enemy plane is 0.55. Make a histogram for the probability distribution.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
Trigonometry (MindTap Course List)TrigonometryISBN:9781337278461Author:Ron LarsonPublisher:Cengage Learning
Trigonometry (MindTap Course List)TrigonometryISBN:9781305652224Author:Charles P. McKeague, Mark D. TurnerPublisher:Cengage Learning
Elementary Geometry For College Students, 7eGeometryISBN:9781337614085Author:Alexander, Daniel C.; Koeberlein, Geralyn M.Publisher:Cengage,
Algebra: Structure And Method, Book 1AlgebraISBN:9780395977224Author:Richard G. Brown, Mary P. Dolciani, Robert H. Sorgenfrey, William L. ColePublisher:McDougal Littell
Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Trigonometry (MindTap Course List)
Trigonometry
ISBN:9781337278461
Author:Ron Larson
Publisher:Cengage Learning
Trigonometry (MindTap Course List)
Trigonometry
ISBN:9781305652224
Author:Charles P. McKeague, Mark D. Turner
Publisher:Cengage Learning
Elementary Geometry For College Students, 7e
Geometry
ISBN:9781337614085
Author:Alexander, Daniel C.; Koeberlein, Geralyn M.
Publisher:Cengage,
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
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Algebra - Pythagorean Theorem; Author: yaymath;https://www.youtube.com/watch?v=D_y_owf1WsI;License: Standard YouTube License, CC-BY
The Organic Chemistry Tutor; Author: Pythagorean Theorem Explained!;https://www.youtube.com/watch?v=B0G35RkmwSw;License: Standard Youtube License