Algebra Word Problems Practice Test

May 29th, 2015
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1 . How much 10% alcohol solution should be mixed with 14 ounces of 18% solution to get a 12% solution? (a) of an ounce (b) 42 ounces (c) 4.2 ounces (d) 14 ounces 2 . The perimeter of a rectangle is 56 inches and the width is three-

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Applications of linear algebraLinear algebra.Computer science applications: wavelets, transformations in computer graphics, computer vision, Google's PageRank algorithm, linear programming, linear regression, Markov chains. Other applications: linear and nonlinear optimization, control theory, combinatorial optimization, numerical solutions to ODEs, analysis of electrical networks, portfolio optimization, qunatum mechanics. Desire to solve such problems has driven the development of computing technology. BLAS.Matrix.In numerical linear algebra, amatrixis a rectangular table of real or complex numbers. Given a matrix A, we use the notation Aijto represent the entry in the ith row and the jth column. We can implement a matrix in Java by using a two dimensional array. We access AijusingA[i][j]. We begin indexing at 0 to conform to Java indexing conventions.Matrix multiplication.The product of two N-by-N matrices A and B is an N-by-N matrix C defined byThe following code fragment computes C = AB.for (int i = 0; i < N; i++) for (int j = 0; j < N; j++) for (int k = 0; k < N; k++) C[i][j] += A[i][k] * B[k][j];Row major order vs. column majo

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