Mathematics for Elementary Teachers with Activities (5th Edition)
5th Edition
ISBN: 9780134392790
Author: Beckmann, Sybilla
Publisher: PEARSON
expand_more
expand_more
format_list_bulleted
Concept explainers
Videos
Textbook Question
Chapter 16.3, Problem 12P
There are 4 black marbles and 5 red marbles in a bag. If you reach in and randomly select 2 marbles, what is the probability that both are red? Explain your reasoning clearly.
Expert Solution & Answer
Want to see the full answer?
Check out a sample textbook solution
Students have asked these similar questions
Q5*) Write down an immediate first integral for the Euler-Lagrange equation for the integral
I =
= F(x, y, y″) dx.
Hence write down a first integral of the Euler-Lagrange equation for the integral
I
1 = √(xy ² + x³y²)
dx.
Find the general solution of this ordinary differential equation, seeking first the complementary function and
then the particular integral. (Hint: the ODE is of homogeneous degree. And, for the particular integral, try
functions proportional to log x.)
You are provided with three 2D data points, p1, p2 and p3. Solving A C = B for C provides youwith the coefficients of a natural cubic spline curve that interpolates these points.Additionally, you have been given A and B, but some elements are missing. Moreover, the last two rowsof A are entirely absent. Your task is to determine and fill in the missing elements. For the last two rows,enforce a zero tangent at the beginning (in p1) and a not-a-knot boundary condition in p2. The matricesA and B are given as follows:Explain how to find the entries of A and B . How would you adapt these matrices if the data pointswere 3D? What if your spline should go through five data points? How many “extra rows” would there thenbe (with “extra” meaning “in addition to securing C2-continuity”)?
Q2*) In question P3 we showed that a minimal surface of revolution is given by revolution (about the x-axis)
of the catenary, with equation y = C cosh ((x – B)/C).
-
(a) Suppose, without loss of generality, that the catenary passes through the initial point
P = (x1,y1) = (0, 1). First deduce an expression for the one-parameter family of catenaries passing
through point P. Next calculate the value of x at which y takes its minimum value. By using the inequality
cosh > √2
(you might like to think about how to prove this), show that there are points Q for which it is impossible to find
a catenary passing through both P and Q. In particular, show that it is impossible to find a catenary joining
the points (0, 1) and (2, 1).
(b) A minimal surface of revolution can be realised experimentally by soap films attached to circular wire
frames (see this link and this link for examples). The physical reason for this is that the surface tension, which
is proportional to the area, is being minimised.…
Chapter 16 Solutions
Mathematics for Elementary Teachers with Activities (5th Edition)
Ch. 16.1 - Some games have spinners. When the arrow in a...Ch. 16.1 - a. Draw a spinner such that the probability of...Ch. 16.1 - a. Draw a 4-color spinner (red, green, yellow,...Ch. 16.1 - Write a paragraph discussing the following: a....Ch. 16.1 - A family math night at school features the...Ch. 16.1 - There are 50 small balls in a tub. Some balls are...Ch. 16.1 - In a classroom, there are l00 plastic fish in a...Ch. 16.1 - There is a bag filled with 4 red blocks and 16...Ch. 16.1 - Write several paragraphs in which you describe and...Ch. 16.2 - A bakery makes 4 different kinds of cake. Each...
Ch. 16.2 - Allie and Betty want to know how many 3-letter...Ch. 16.2 - Explain your answers to the following: a. How many...Ch. 16.2 - In all 3 parts in this problem, explain your...Ch. 16.2 - Most Georgia car license plates currently use the...Ch. 16.2 - a. A 40-member club will elect a president and...Ch. 16.2 - A dance club has 10 women and 10 men. In each of...Ch. 16.2 - A pizza parlor problem. How many different large...Ch. 16.2 - A pizza parlor offers lo different toppings to...Ch. 16.3 - A children’s game has a spinner that is equally...Ch. 16.3 - A children’s game has a spinner that is equally...Ch. 16.3 - A children’s game has a spinner that is equally...Ch. 16.3 - A children’s game has a spinner that is equally...Ch. 16.3 - A children’s game has a spinner that is equally...Ch. 16.3 - Determine the probability of spinning a blue...Ch. 16.3 - Determine the probability of spinning a blue...Ch. 16.3 - Determine the probability of spinning a red...Ch. 16.3 - Suppose you have a penny, a nickel, a dime, and a...Ch. 16.3 - You have a bag containing 2 yellow and 3 blue...Ch. 16.3 - There are 3 plastic bears in a bag. The teacher...Ch. 16.3 - There are 4 black marbles and 5 red marbles in a...Ch. 16.3 - Suppose you have 100 light bulbs and one of them...Ch. 16.3 - A game at a fund-raiser: There are 20 rubber ducks...Ch. 16.3 - You are making up a game for a fund-raiser. You...Ch. 16.3 - a. A waitress is serving 5 people at a table. She...Ch. 16.3 - Prob. 17PCh. 16.3 - Prob. 18PCh. 16.4 - A children’s game has a spinner that is equally...Ch. 16.4 - Suppose you flip a coin and roll a number cube...Ch. 16.4 - Use fraction arithmetic to solve problem 1 on page...Ch. 16.4 - Use fraction arithmetic to solve problem 3 on page...Ch. 16.4 - Use fraction arithmetic to solve problem 6 on page...Ch. 16.4 - Prob. 6PCh. 16.4 - Use fraction arithmetic to solve problem 8 on page...Ch. 16.4 - There are 3 boxes, one of which contains 2...Ch. 16.4 - A game consists of spinning a spinner and then...Ch. 16.4 - Prob. 10PCh. 16.4 - Prob. 11PCh. 16.4 - Prob. 12PCh. 16.4 - Prob. 13PCh. 16.4 - Prob. 14PCh. 16.4 - Suppose you have 2 boxes, 50 black pearls and 50...Ch. 16.4 - Due to its high population, China has a stringent...Ch. 16.4 - The Pretty Flower Company starts plants from seed...Ch. 16.4 - Suppose that ¡n a survey of a large, random group...Ch. 16.4 - Suppose that 1% of the population has a certain...
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
- Q3*) Consider the integral I Yn, Y₁, Y2, . . ., Y'n) dã, [F(x, Y 1, Y2, · · Yng) = - where y1, 2, ...y are dependent variables, dependent on x. If F is not explicitly dependent on x, deduce the equivalent of the Beltrami identity. Optional: Give an example of a function F(y1, Y2, Y₁, y2), and write down the Euler-Lagrange equations and Beltrami Identity for your example. Does having this Beltrami Identity help solve the problem?arrow_forwardWrite an integral that is approximated by the following Riemann sum. Substitute a into the Riemann sum below where a is the last non-zero digit of your banner ID. You do not need to evaluate the integral. 2000 (10 1 ((10-a) +0.001) (0.001)arrow_forwardSolve the following problem over the interval from x=0 to 1 using a step size of 0.25 where y(0)= 1. dy = dt (1+4t)√√y (a) Euler's method. (b) Heun's methodarrow_forward
- Use Euler and Heun methods to solve y' = 2y-x, h=0.1, y(0)=0, compute y₁ y5, calculate the Abs_Error.arrow_forwardUse Heun's method to numerically integrate dy dx = -2x3 +12x² - 20x+8.5 from x=0 to x=4 with a step size of 0.5. The initial condition at x=0 is y=1. Recall that the exact solution is given by y = -0.5x + 4x³- 10x² + 8.5x+1arrow_forwardB: Study the stability of critical points of ODES: *+(x²-2x²-1)x+x=0 and draw the phase portrait.arrow_forward
- B: Study the stability of critical points of ODEs: -2x²+x²+x-2=0 and draw the phase portrait.arrow_forward2/ Draw the phase portrait and determine the stability of critical point: ✗ 00 +2X°-x²+1=0arrow_forwardstudy the stability of critical point of oDES: 2 200+ (x² - 2x² - 1) + x=0 and draw the phase portrait.arrow_forward
arrow_back_ios
SEE MORE QUESTIONS
arrow_forward_ios
Recommended textbooks for you
Holt Mcdougal Larson Pre-algebra: Student Edition...AlgebraISBN:9780547587776Author:HOLT MCDOUGALPublisher:HOLT MCDOUGAL
College Algebra (MindTap Course List)AlgebraISBN:9781305652231Author:R. David Gustafson, Jeff HughesPublisher:Cengage Learning
College AlgebraAlgebraISBN:9781305115545Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Algebra & Trigonometry with Analytic GeometryAlgebraISBN:9781133382119Author:SwokowskiPublisher:Cengage
Algebra and Trigonometry (MindTap Course List)AlgebraISBN:9781305071742Author:James Stewart, Lothar Redlin, Saleem WatsonPublisher:Cengage Learning
Holt Mcdougal Larson Pre-algebra: Student Edition...
Algebra
ISBN:9780547587776
Author:HOLT MCDOUGAL
Publisher:HOLT MCDOUGAL
College Algebra (MindTap Course List)
Algebra
ISBN:9781305652231
Author:R. David Gustafson, Jeff Hughes
Publisher:Cengage Learning
College Algebra
Algebra
ISBN:9781305115545
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Algebra & Trigonometry with Analytic Geometry
Algebra
ISBN:9781133382119
Author:Swokowski
Publisher:Cengage
Algebra and Trigonometry (MindTap Course List)
Algebra
ISBN:9781305071742
Author:James Stewart, Lothar Redlin, Saleem Watson
Publisher:Cengage Learning
Mod-01 Lec-01 Discrete probability distributions (Part 1); Author: nptelhrd;https://www.youtube.com/watch?v=6x1pL9Yov1k;License: Standard YouTube License, CC-BY
Discrete Probability Distributions; Author: Learn Something;https://www.youtube.com/watch?v=m9U4UelWLFs;License: Standard YouTube License, CC-BY
Probability Distribution Functions (PMF, PDF, CDF); Author: zedstatistics;https://www.youtube.com/watch?v=YXLVjCKVP7U;License: Standard YouTube License, CC-BY
Discrete Distributions: Binomial, Poisson and Hypergeometric | Statistics for Data Science; Author: Dr. Bharatendra Rai;https://www.youtube.com/watch?v=lHhyy4JMigg;License: Standard Youtube License