Factor each of the following expression to obtain a product of sums TW + UY' + V, Find the average value of the function on the given interval. Determine whether the series sum of (n^n)/(factorial of n) from n = 0 to infinity converges or diverges. How many classes would you suggest? y double prime + 3y = 9x, y(0) = 0, y(1) + y prime (1) = 0. Math. An actual ACT Mathematics Test contains 60 questions to be answered in 60 minutes. B) Solve the initial value problem: dy/dt = 2(4 - y), y(1) = 1. ∠CAB = 40^o and ∠BCA = 90^o. Find the values of the parameter r for which y = e^(rx) is a solution of the equation y double prime + 2*y prime - 3y = 0. What is the value of the product (2i)(3i)? A) Find d^2(y)/dx^2. Find all the values of x such that the given series would converge. Solve the differential equation 2y'' -5y' -3y =0 with the initial conditions y(0) = 1, y'(0) =10, Find curl F(x,y,z) , when F(x,y,z) = x^3yz i +xy^3z j + xyz^3 k, Evaluate the integral \int \frac{1}{64x^2-9} \,dx. Find the coordinates of the point(s) on the curve y = sqrt(x + 4) that are closest to the given point (4, 0). They either don't know how to approach a problem, where to go next in the problem, or what strategies are appropriate to solve a problem. Consider the vector field F(x, y, z) = (2 z + y) i + (2 z + x) j + (2 y + 2 x) k. a) Find a function f such that F = nabla f and f(0, 0, 0) = 0. f(x, y, z) = b) Suppose C is any curve from (0, 0,... r(t)=(2 \ln(t^2+1) i+ (\tan^{-1} t) j+8 \sqrt{t^2 + 1} k is the position vector of a particle in space at time t . Solve the problem. What is the number? Find all solutions of the equation in the interval [0, 2pi). Support us to become better via paypal! If the series \sum_{0}^{\infty} \left ( \frac{1}{\sqrt{13}} \right )^n converges, what is its sum? Find the sum of x^3 y + x^2 y^2 - 3 x y^3 and x^3 - 3 x^3 y + y^3 + 4 x y^3. 480 c. 5A + 10B = 200, Find the curvature for r(t) = \langle 4\cos t, t, 4\sin t \rangle. share. In fact, she has to work hard at understanding mathematical concepts. These questions are a framework for creating prompts that encourage inquiry, challenge students to think bigger and connect the classroom to real world ideas and events. Write this number in standard form using digits. Our math question and answer board features hundreds of math experts waiting to provide answers to your questions. Show that the following equation x^5 + 3x + 1 = 0 has exactly one real root. card. 0 . All other trademarks and copyrights are the property of their respective owners. Differentiate between process improvement framework and problem-solving framework. e(^(x^2y))=x+y, Show how to calculate the iterated integral. 12A + 8B ? f(x) = \frac{(x^3 - 3)}{(x^2 - 4)}. Find an equation of the tangent line to the curve y = x^3-3x+1 at the point (1,-1), Write the equation 5x + 4y + 7z = 1 in spherical coordinates. What unique role does psychology play in systems biology? question 2 . Sum of 1/(4n^2 + 1) from n = 1 to infinity. Services, Working Scholars® Bringing Tuition-Free College to the Community. Read each question carefully to make sure you understand the type of answer required. Grade 4 and 5 maths questions and problems to test the understanding of maths concepts and procedures are presented. Find an equation for the plane consisting of all points that are equidistant from the points (7, 0, -2) and (9, 12, 0). A. Preschool. Determine the curvature kappa(t) of the given curve r(t) = (4sin t)i + (4sin t)j + (-3cos t)k. Find the length of the curve x = 3y^(4/3) - (3/32)y^(2/3), 0 less than or equal to y less than or equal to 8. Write the given number in the form a + bi. Suppose f(x, y) = xy - 6. 0 comments. \tan^2x(1 + \cos2x) = 1 - \cos2x. Determine whether the series is absolutely convergent, conditionally convergent or divergent : \displaystyle \sum_{n \ = \ 1}^{\infty} \frac{(-1)^{n - 1}}{n + 6}. a. Calculate the producers' surplus for the supply equation p = 7 + 2q^{1/3} at the indicated unit price p = 18, Determine whether the series \sum k \left ( {10}{11} \right )^k , where k = 1 is absolutely convergent, conditionally convergent, or divergent. You can ask any math question and get expert answers in as little as two hours. f(x) = sqrt (x). Hot New Top. If this is not possible, indicate "Cannot create sa... Clark Heter is an industrial engineer at Lyons Products. r(t) = (t^2, (2/3)t^3, t); (4, -16/3, -2). If the perimeter of the window is 37 ft, express the area, A, as a function of the width, x, of the w... How is abstract algebra related to systems biology? 3 . If the following series converges, compute its sum. Determine whether the series \sum_{n=1}^\infty \frac{(-1)^nn^6}{7^n} converges or not. Free, unlimited access to lessons. (Remember to use ln(absolute u) where appropriate. a. What is a Whole Class Discussion? Our online math trivia quizzes can be adapted to suit your requirements for taking some of the top math quizzes. We hope your visit to math.com brings you a greater love of mathematics, both for its beauty and its power to help solve everyday problems. Sum of (5*(factorial of n)^2)/(factorial of 2n) from n = 1 to infinity. Find the vectors T, N, and B at the indicated point. The mathematical ideas at the heart of a lesson will help you distinguish between different types of classroom discussions you can have with your students. Determine if the following series converges or diverges. Determine whether the series sum of (2^k)/(k^2) from k = 1 to infinity converges. How was Mayan mathematics different from math today? Find equations for the following: (a) The plane which passes through the point (0,0,1) which is also orthogonal to the two planes x=2 and y=19. Recommendations for the subreddit? Our free online math test quiz will assist you to improve your math skills in a fun interactive way. (b) Find the divergence of the vector field. Find the radius of convergence and interval of convergence of the series \sum_{n=1}^\infty x^n(3n-1). View Lessons (53) Find the linearization of the function z = x\sqrt y at the point (2,64), Convert from rectangular to polar coordinates: (x^2+y^2)^2 = x^2y. July 28, 2020 no_limit_pictures / iStock. If \gamma(\frac{8}{3}) = a find \gamma(\frac{1}{3}). The cost of buying a tall building is one hundred twenty one million dollars. Then, what is the possible coordinate(s) for K? These interesting questions for girls and guys can help you ignite a lively conversation and woo a date. Is it essential to have some background in math to pursue a branch of biology? Compute kappa(t) when r(t) = (1t^(-1), -4, 6t). f(x, y) = 8y cos(x), 0 less than or equal to x less than or equal to 2pi. \frac{\tan(x)}{(\cot(x) + \tan(x))} = 1 - \cos^2(x), Verify the following equation is an identity. Compute the following values: A) f(x + 4y, x - 4y) B) f(xy, 6x^2 y^3), Use the integral test to determine if sum_{k=1}^{infinity} k e^{- 3 k} converges, Find r(t) and v(t) given acceleration a(t) = (t, 1), initial velocity v(0) = (- 2, 2) and initial position r(0) = (0, 0). Determine the convergence of the series \sum_{k=0}^{\infty} (-1)^{k+1} \frac{\sqrt k}{k+1}, Find the general solution of the following differential equations a) y''-2y'-3y = 3e^{2t} b) y''+2y'+5y = 3\sin 2t, Solve the initial-value problem t^3 \frac{\mathrm{d} y}{\mathrm{d} t} + 3t^2y = 4 \cos(t), \quad y(\pi) = 0. A variety of math questions that will help you prepare before taking the SAT Math Test. Determine if the following series is convergent or divergent. Determine two unit vectors orthogonal to both (4, 5, 1) and (-1, 1, 0). Browse through all study tools. Limit as y approaches 1 of (1/y - 1/1)/(y - 1). Sum of k^2 e^(-k) from k = 1 to infinity. A discussion forum where you can get help to solve your homework problems and exercises. (Use C for the constant of integration.) ACCUPLACER Math Study Guide – Free Questions. Find the series' radius of convergence. Differentiate the function f(t) = tan(sec(cos t)). f(u, v) = (4u^2 + 3v^2) e^(uv^2). how to view the discussion section besides the answer of a question - Math - Linear Inequalities Let f(x) = 7x^2 - 2 to find the following value. Use for debates, discussions, speaking, conversations, independent learning and more. Find f given: f'(x) = 5x^4 - 3x^2 + 4, f(-1) = 2. Topics. Consider the vector \mathbf F(x,y,z) = (2x+4y)\mathbf i +(4z+4x) \mathbf j + (4y + 2x) \mathbf k . These materials enable personalized practice alongside the new Illustrative Mathematics 6th grade curriculum. A set of data contains 53 observations. MATHS. Compute an arc length parametrization of the circle in the plane z = 9 with radius 4 and center (1, 4, 9). These questions have been adapted from "Engaging Students in Discussion Online" (from the Teaching and Learning Bulletin 6.2 [2002] produced by the University of Washington’s Center for Instructional Development and Research) 1. -1 c. -2 d. -4, Expand the following expression. Who are some modern male mathematicians? WHY ARE DISCUSSIONS IMPORTANT? However, sometimes during the process of completing a task, we find that our kids become stuck. integral x^2 (x + 1)^2 dx. Find an equation of the set of all points equidistant from the points A(-1, 6, 3) and B(5, 3, -3). Find the interval of convergence of the following series. Team Rice live match you need to buy TV software clicking the link given before. Find the curvature kappa(t) of the curve r(t) = (-1sin t)i + (-1sin t)j + (-3cos t)k. Find the equation of the tangent line to the curve y = x^3 - 3x + 2 at the point (2, 4) ? Find PD if the coordinate of P is (-7) and the coordinate of D is (-1). f double prime (x) = 2e^x + 3sin x, f(0) = 0, f(pi) = 0. Maths Problems, Questions and Online Tests. Math Only Math provides numerous collections of printable math quizzes for you to boost your knowledge. You can find ACCUPLACER Arithmetic questions in our free ACCUPLACER study guide. Don't panic - Study.com has the solutions to your toughest math homework questions explained step by step. Find the absolute maximum and absolute minimum values of f on the given interval. For what values of c is there a straight line that intersects the curve y = x^4 + cx^3 + 12x^2 - 4x + 9 in four distinct points? Sometimes when you go off topic that actually improves your learning because you’re making connections between what you’re actually talking about and other things that you know. Let f(x) = 2x^2 - 2 and let g(x) = 5x + 1. Solve the initial value problem \displaystyle 12(t + 1) \frac{dy}{dt} - 8y = 32t, for t -1 with y(0) = 9. Find a function f such that F = \nabla f and f(0,0,0) = 0 b. What is the value of the Lagrange multiplier ? The producer of a certain commodity determines that to protect profits, the price p should decrease at a rate equal to half the inventory surplus S-D , where S \enspace and \enspace D are r... Find the indefinite integral. What is the number? D. The series diverges 1. sum_n=1^infi... Compute the exact length of the polar curve described by: r = 9e^(-theta) on the interval (9/4)pi less than or equal to theta less than or equal to 6pi. For the curve given by r(t) = (-2sin t, 4t, 2cos t), A) Find the unit tangent T(t). Find the expansions of (3 - 2 x) (2 x + 7) (2 x + 1). Maths Tests Practice Free ACT Maths Test Practice Questions with Answers. (Justify your answer.) How do I prove the existence of an object in math? One is not a nickel. Sum of (1/n - 1/(n + 1)) from n = 1 to infinity. v(t) = r(t) =. Description Discussion prompts are the written “springboard” from which online discussions are launched and are essential to encourage shared understanding (Du, Zhang, Olinzock, & Adams, 2008). Differentiate: y = \sqrt{(1 - x)} - \sqrt{(1 + x^2)}, Evaluate the integral: integral x / x^4 + 4x^2 + 8 dx, Evaluate the integral: integral x^2/sqrt(4 - x^2) dx, Evaluate the integral: integral x^5 sqrt(x^3 - 1) dx, Evaluate the integral: integral sec^2 x/tan^2 x + 2 tan x + 2 dx, Evaluate the integral: integral x^3/2 ln x dx, Verify the following equation is an identity. C) The series diverges. “If two people can fall in love online, they can learn American history online,” she said. A set of grade 4 math questions on operations on numbers, converting units, algebraic expressions, evaluation of algebraic expressions, problems are presented along with their answers at the bottom of the page. Suppose point J has coordinate of -2 and JK = 4. Take our high school math courses in Pre-algebra, Algebra 1, Algebra 2 and Geometry.We have also prepared practice tests for the SAT and ACT. The mathematics exercises are simple in design yet challenging and fun to do. f(x) = \frac{x}{x - 1}. Find an equation for the plane consisting of all points that are equidistant from the points (-5, 4, 3) and (1, 6, 7). Find the area of the parallelogram with vertices K(1, 3, 3), L(1, 4, 4), M(4, 8, 4), and N(4, 7, 3). Free shipping and pickup in store on eligible orders. You are allowed to answer only once per question. a^2z(t - a)\left(\dfrac{1}{z} + \dfrac{1}{a} \right). q_0 = 100. w = $20, v =$5. Determine if the sum of (-1)^n (n)/(sqrt(n^3 + 2)) from n = 1 to infinity converges absolutely, converges conditionally, or diverges. This means that I have omitted questions that are no longer relevant to primary maths and I have added extra questions to ensure that the newer topics are adequately covered. a. Construct a sample (with at least two different values in the set) of 4 measurements whose mode is smaller than at least 1 of the 4 measurements. Replies: 23 Views: 703 . Solve the given differential equation. 10sin^2(x) = 10 + 5cos(x). (Use C as the arbitrary constant.). Buy the Paperback Book Gmat Math Workbook: Over 300 Practice Questions + Online by Kaplan Test Prep at Indigo.ca, Canada's largest bookstore. Determine the inverse Laplace transform of F(s) = \frac{3s+5}{s^2+4s+13}. Determine all values of h and k for which the following system has no solution. Find the angle between the velocity and acceleration vectors at time t=0 . \int (x - 1)(x + 1)^{\frac{1}{2}}dx, Find the general indefinite integral : \int (\frac{1-sin^{3}t}{sin^{2}t}) dt, Determine the indefinite integral and check your work by differentiation: \int \sin(x)(\cot(x) + \csc(x)), Evaluate the definite integral: integral_2^3 dx/x^2 - 1, Integrate the function: sqrt(1 + (x^2/9)), Find the integral of the given function: tan^3 2x sec 2x. \frac{(\tan^2(x) - \cot^2(x))}{(\tan(x) - \cot(x))} = \csc(x) \sec(x), Find the indefinite integral and check the result by differentiation: integral (t^2 - cos t) dt, Find the indefinite integral and check the result by differentiation: integral (8x^3 - 9x^2 + 4) dx. You can now earn points by answering the unanswered questions listed. Rely more on themselves to determine whether something is mathematically correct. Believe it or not, this "math" question actually requires no math whatsoever. In addition to all the math topics listed above, IB Mathematics HL students study just one of the following four options listed below. Replies: 279 Views: 15,807 . Sum of ((x - 6)^n)/(factorial of (2n)) from n = 1 to infinity. int_{- 4}^{2} [ int_{pi / 2}^pi (y + y^3 cos x) d x ] d y, Integrate the following. Solve the differential equation (\sin 2x)y'=e^{5y}\cos 2x. What are the challenges that teachers may foresee in teaching math? Find T(t) \enspace and \enspace N(t) for the curve r(t) = 4t^2 i + 6t j . Find the product of 2 x + 3 y and x^2 - x y + y^2. Math can be a difficult subject for many students, but luckily we’re here to help. Find the area of the parallelogram whose vertices are given below. In Good Questions for Math Teaching: Why Ask Them and What to Ask, Grades 5–8 (Math Solutions Publications, 2005), Lainie Schuster and Nancy Anderson provide teachers with questions across seven math strands. The test provides a full image of an adult’s academic level, and determines whether he or she is prepared for a specific position, be it academic or vocational. Math planet is an online resource where one can study math for free. Find the arc length of the graph of the function over the indicated interval. Online discussions build a community for reflection and learning. Find an arc length parametrization of r(t)= \langle e^t\sin(t),e^t\cos(t),6e^t \rangle. Grade 7 math printable worksheets, online practice and online tests. determine the truth value of the statement . \int \frac {x}{(x^2 + 9)^{3/2}} \ dx, Find the indefinite integral: integral (x/sqrt(1 - x^2)) dx. Calculate step by step. A) Find the radius of convergence, R. B) What is the interval of convergence? Solve the given boundary-value problem. What is maximum number of days on which Sam sold more loaves of bread than Lucky? Last Post by Tryagain on 10/23/20 4:28 PM . Sum of (2^n (x - 1)^n)/(n) from n = 1 to infinity. by Math Solutions Professional Learning Team, Discuss their contribution to the field of mathematics. A comprehensive database of more than 15 business math quizzes online, test your knowledge with business math quiz questions. Suppose we are trying to model Y as a polynomial of X. A comprehensive database of more than 449 math quizzes online, test your knowledge with math quiz questions. Find the interval of convergence of the following series. Compute the average value of the function f(x) = x^2 - 17 on [0, 6]. Sum of ((3x)^n)/(factorial of 4n) from n = 0 to infinity. P = a + 3b + 2c, for a, Simplify: (2x^3 - 5x^2-5x) + (5x^3 - x^2 +4x+4), Solve for y: 4 + \frac{6}{y} = \frac{5}{2}, Solve: \ln (4x - 2) - \ln 4 = - \ln (x-2), Simplify: \frac{\frac{4}{x} - \frac{4}{y}}{\frac{3}{x^2} - \frac{3}{y^2}}, Simplify the following expression. Find the volume of the parallelepiped with adjacent edges PQ, PR, PS. (a) g(0, 0, 0) (b) g(1, 1, 0) (c) g(0, 1, 0) (d) g(z, x, y) (e) g(x + h, y + k, z + l), Find the point of intersection of the lines r_1(t) = (-1, 1) + t (6, 10) \enspace and \enspace r_2(s) = (2, 1) + s (5, 15). integral 1 / {x^2 + 25} dx. Find the limit. Discussion prompts can vary from pithy (e.g., “Discuss [Topic X]”) to verbose (e.g., an entire printed page of instructions). associated with the cost minimizing input choice? The amount of paint needed to cover the walls of a bedroom is 133x, where xx is the thickness of the coat of paint. Data and modeling. If you pile enough on, things really start to heat up. Sum of ((x - 6)^(2n))/(36^n) from n = 0 to infinity. Name the test used to determine your answer. -0.5 b. A(0, 0, 0), B(3, 2, 6), C(6, 1, 6), D(3, -1, 0). Test the series \sum_{n=1}^{\infty} (-3)^{3n} for convergence or divergence. Because I am still trying to improve Math Talk in my classroom daily, I … What kinds of pre-discussion activities facilitate student discourse about math? Indicate which test you used and what you concluded from that test. Farmer Brown had ducks and cows. r(t) = t i + t^2 j + 5t k. Calculate the area of the plane region bounded by x - y = 7 and x = 2y^2 - y + 3. If so, prove it; if not, prove that it fails to satisfy one or more of the axioms. They made some interesting observations. Find the interval of convergence. Use your calculator wisely. Sum of 1/(n*(ln n)^2) from n = 2 to infinity. You can use these questions and answer explanations to get an idea of the types of questions you will find on both the real ACCUPLACER test and our ACCUPLACER practice packs. I’ve come to believe that crafting good online discussion questions is just plain hard and instructors fall back on essay questions for lack of better ideas. All rights reserved. Grade 10 Math made completely easy! What should students gain through participation in the discussion? Good questions are like kindling. Why study Mathematics online? Practice, Practice & More Practice. Convert 122^o 37' to radians. Construct a 95% confidence interval for the effect of years of education on log weekly earnings. Never associated learning algebra with rescuing … In short, math anxiety is any form of anxiety that results from mathematics. Determine the linearization L(x) of the function at a. f(x) = x^(1/2), a = 25. Ideally, the boards not only fuel student engagement, but they also facilitate critical thinking and a sense of community in online environments. Find all three sides of the triangle with vertices P(2, -1, 0), Q(4, 1, 1), and R(4, -5, 4). If the series converges, find its sum. WHOLE NUMBERS AND PLACE VALUE. Why is it important for students to talk about math? Show that the following series is divergent. Calculate the average value of f(x) = 5 x sec^2 x on the interval [0, pi/4], For u = e^x cos y, (a) Verify that {partial^2 u} / {partial x partial y} = {partial^2 u} / {partial y partial x} ; (b) Verify that {partial^2 u} / {partial x^2} + {partial^2 u} / {partial y^2} = 0. Give the maclaurine expansion. Suppose, C is any curve from (0,0,0) to (1,1,1),... Find the point on the line 5x+5y+2=0 which is closest to the point (2,4). What are some examples of Godel's incompleteness theorem in biological systems? It is impossible to study maths properly by just reading and … A primary outcome starting early in the semester was that the online discussions helped to build a sense of community among the PSTs and enhanced opportunities for reflection by providing a forum for dialog that might not have occurred in a face-to-face discussion. If sin θ = cos θ, in which quadrants may angle θ terminate? Free online maths problems, questions and self tests on precalculus topics. sum_{n more than or equal to 3} {1 / n} / {ln(n) sqrt{ln ^2 (n) - 1}}. Students will need to be ab... Sam sold 39 loaves of bread in 9 days. \int x^{\frac{7}{8}} dx, Evaluate the indefinite integral. How to Engage Students in Meaningful Math Discussions. A firm production function is given by q = f(k,l) = k�l. A discussion question that is truly great is challenging and inspires students to think critically and respond with well thought out answers. If it is convergent, evaluate it. Posted by 12 hours … Posted by 5 years ago. For each F(x,y) = 0, (i) find \frac{dy}{dx} (ii) find the points for which \frac{dy}{dx} is not defined (a) 2y+3x = 0 (b) 2x^2 + y^2 = 0 (c) x^2y + e^y + xy = 0 (d) \ln y + e^x + 5xy^2 = 0. Sum of (2n^2 + 3)/(5n^2) from n = 1 to infinity. ), Find dy/dx by implicit differentiation. F = (1/2)S^3(2S^2 - 3S - 6). In this discussion forum, I want you to discuss the following about math anxiety: • How do you define math anxiety? D is a point on side CA, and BD has length 18.4 cm. b. irrational number. Be sure to show intermediate work and do not simplify your answer. Online discussion can be motivating and encouraging for many students! © copyright 2003-2021 Study.com. English lesson on MATHEMATICS. Lots of interactive Maths challenges for children of different ages and abilities (year 2 to year 6, key stage 1 and key stage 2). \int 6^{\sin x}\cos xdx, Evaluate the integral. This test can help you prepare to take many standardized tests. What are some salient examples where systems biology has helped explain a complex process? f(x) = 6x^3 - 18x^2 - 144x + 7, [-3, 5]. \frac{(9a^{3}b^{4})^{1/2}}{15a^{2}b}. Let F = (7yz)i + (6xz)j + (6xy)k. Compute the following: A) div F B) curl F C) div curl F (Your answers should be expressions of x, y, and/or z), Evaluate the integral \int \frac{\log x}{x} \, dx. B) Find the unit normal N(t). B) Find the Taylor polynomial of order 3 generated by f at a. f(x) = 1/(x + 9), a = 0. r = e^(8theta), 0 less than or equal to theta less than or equal to 2pi. b. Archived. Math. Math Only Math provides numerous collections of printable math quizzes for you to boost your knowledge. In Good Questions for Math Teaching: Why Ask Them and What to Ask, Grades 5–8 (Math Solutions Publications, 2005), Lainie Schuster and Nancy Anderson provide teachers with questions across seven math strands. x = 6 + 12t^2, y = 5 + 8t^3, 0 leq t leq 4. Find the divergence and curl of F . Math Questions and Answers from Chegg. Determine convergence or divergence of the following series and state the test used. Find a function f such that \mathbf F = \nabla f and f(0,0,0) = 0 . Test the following series for convergence or divergence. (Give your answer in interval notation.). Rising. matrix Questions and Answers - Math Discussion Recent Discussions on matrix.php . Anybody can ask a question Anybody can answer The best answers are voted up and rise to the top Home Questions Tags Users Unanswered How can I write a math formula in a post? For the function g(x, y, z) = e^{-xyz}( x + y + z) , evaluate the following. Dirac, Paul Adrien Maurice (1902-1984) Find an equation of the plane. If \sin \theta = \frac{5}{13}, theta lies in quadrant 2, find \tan 2\theta. Solve for the indicated values Find C, a, and b. Simplify: \sin(\frac{7\pi}{6}) + \cos(\frac{3\pi}{2}), Create an account to browse all assets today, Biological and Biomedical If a biologist has two treatments that are independent samples and he is not assuming a normal distribution of the data, which test(s) would be appropriate to use? t*(dy/dt) + 7y = t^3, t greater than 0, y(1) = 0. H... Find the derivative of the function. I interviewed fifth grade students (other students as well) and asked them how communication helps them learn math (see video clip 1.1 PDToolkit in Whole Class Mathematics Discussions). Sum of (ln n^2)/(n) from n = 1 to infinity. 0 . Meta Stack Exchange is a question and answer site for meta-discussion of the Stack Exchange family of Q&A websites. Sum of (x^(2n))/(factorial of (2n)) from n = 0 to infinity. Exercise 3.5.1 : On the space of nonnegative integers, which of the following functions are distance measures? Maths Forums - Ask an expert about maths. Find all the values of x such that the series \sum_{n=1}^\infty \frac{(5x-9)^n}{n^2} would converge. A Norman window has the shape of a rectangle surmounted by a semicircle as in the figure below. A comprehensive database of more than 42 5th grade math quizzes online, test your knowledge with 5th grade math quiz questions. They’re practically omnipresent; a tool used in every virtual classroom in every college curriculum. Inside the sphere x^2 + y^2 + z^2 = 16 and outside the cylinder x^2 + y^2 = 1. All kinds of mathematics, science question and answers related to all topics can be discussed here. Solve the differential equation: sin xdy dx +(cos x)y=xsin(x^2). Prove the identity: \sin4x \sin2x = \frac{1}{2}(\cos2x - \cos6x). The slope of the line containing points Y and Z is ____. Find the radius of convergence of the following power series. We’ve got courses across the mathematics spectrum, from courses to get you ready for university study, right through to advanced maths. Sum of ((5x - 7)^n)/(n^2) from n = 1 to infinity. Math. Give a clear and detailed solution of the integral of e^{-ct/m}, Differentiate. Find the point(s) at which the function f(x) = 2 - x^2 equals its average value on the interval [-6,3] . integral ln (t + 3) dt, Find the integral. (Use symbolic notation and fractions where needed. Math Solutions Professional Learning Team, Data Analysis: A Lesson with Seventh and Eighth Graders. Determine whether the series is absolutely convergent, conditionally convergent, or divergent. Compute the curvature kappa(t) of the curve r(t) = (5sin t)i + (5sin t)j + (-4cos t)k. Find the tangential and normal components of the acceleration vector. Recent matrix Questions and Answers on Easycalculation Discussion . Go ahead and ask it. Einstein, Albert (1879-1955) Do not worry about your difficulties in mathematics, I assure you that mine are greater. Discussions: Promote a sense of community in the class Demonstrate instructor presence Invite students to ask questions and speak in the language of “math” Provide the instructor information about individual students Aid in assessment – instructors get a more complete picture of student achievement Take the “robot” out of online education In free online math quiz we will practice various types of questions on math quizzes. |I. Students, teachers, parents, and everyone can find solutions to their math problems instantly. \frac{y + 1}{y + 2} + 1 = \frac{-2}{y^2 - 4}, Find the indefinite integral. Forums: Viz Comic, Maths, Puzzles. (Give your answer in interval notation.). x + 3y = h; -4x + ky = -9. Practice, Practice, Practice. For the curve given by r(t) = (-9t, 4t, 1 + 8t^2). You can ask any math question and … If 5 < 1, then 7 >10? Evaluate the integral \int_1^4 3\sqrt t \ln(t) \, dt, Given f'(x)=\frac{\cos(x)}{x} and f(4)=3 , find f(x). r(t) = (10 + ln(sec \ t)) \ i + (8 + t) \ k, \frac {-\Pi}{2} < t < \frac {\Pi}{2} \\r(t) = (3 + 9 \ cos \ 2t) \ i - (7 + 9 \ sin \ 2t) \ j + 2 \ k, Explain: I study engineering but I have a problem with mathematics, always when it come to mathmatic I struggle how to overcome such a problem. Math. Determine whether the series \sum_{n=2}^{\infty} 9n ^{-1.5} converges or diverges, Identify the test used. Grade 4 Math Questions With Answers. Free Online GED ® Sample Tests Try a free sample test in each of the GED subjects. In Orchestrating Productive Mathematics Discussions (2011), Margaret Smith and Mary Kay Stein describe the importance of teachers clearly specifying the mathematical goal before planning out a discussion. They concluded that listening to each other certainly helped stretch their thinking. Triangle ABC is a right-angled triangle. Show all details of your work. View Lessons (147) ... Big Ideas Math Common Core 7th Grade: Online Textbook Help. Find the points on the cone z^2 = x^2 + y^2 which are closest to the point (1, 2, 0). Convert the polar equation r = -4csc(theta) into a Cartesian equation. He would like to determine whether there are more units produced on the night shift than on the day shift. Change from rectangular to spherical coordinates. Jun 25, 2016 - MAT 222 Intermediate Algebra WEEK 1 Assignment, Solving Proportions Discussion, Accounting and the Business Environment WEEK 2 Assignment, Two-Variable Inequalities Discussion, One Variable Compound Inequality WEEK 3 Assignment Real World Radical Formulas Discussion: Simplifying Radicals WEEK 4 Assignment Real World Quadratic Functions Discussion: Solving … Math for free, dx vectors orthogonal to both ( 4, f ( x ) = 7x^2 2! X 10 squared mL of water \times 10^ { -4 } g of H2 - 3S - ). -9T, 4t, 1, 3 ) /5 of dx/ ( 1 then. 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