209 Videos for "system"

Area With Determinants  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a triangle using a determinant. 
Rate Word Problems  Problem 6
Math › Algebra › Word Problems Using Systems of Equations
Solving a rate word problem where there are two travel rates 
Percent Concentrations  Problem 3
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about mixing two liquids with different percent concentrations and one of the ingredients is "pure." 
Square Matrices  Problem 3
Math › Precalculus › Systems of Linear Equations and Matrices
How to show that two matrices are inverses (in the sense of matrix multiplication). 
Area With Determinants  Problem 3
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of an irregular quadrilateral using determinants. 
Sum of Digits  Problem 2
Math › Algebra › Word Problems Using Systems of Equations
How to solve a problem when asked to switch the digits of a 2digit number and one digit is zero. 
Mixture Problems  Problem 1
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems when mixing two quantities with different prices and the price of the mix is unknown. 
Simplifying Determinants  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to simplify determinants using three row (or column) operations. 
Square Matrices  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to interpret 2x2 matrices as transformations. 
Percent Concentrations  Problem 1
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about mixing two liquids with different percent concentrations and the quantity of one ingredient is unknown. 
Work Word Problems  Problem 3
Math › Algebra › Word Problems Using Systems of Equations
Algorithm for solving "work" word problems including shared job and individual job completion times 
Age Word Problems  Problem 3
Math › Algebra › Word Problems Using Systems of Equations
Techniques for solving word problems that involve changing relative ages 
Area With Determinants  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to use the triangle area formula to test three points for collinearity. 
The Inverse of a Square Matrix  Problem 3
Math › Precalculus › Systems of Linear Equations and Matrices
How to find the inverse of a square matrix of order 3 using row operations. 
Mixture Problems  Problem 2
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems when mixing two quantities with different prices and the amount of one ingredient is unknown. 
The Inverse of a Square Matrix  Problem 2
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine that a matrix has no inverse using row operations. 
Invertible Square Matrices and Determinants  Concept
Math › Precalculus › Systems of Linear Equations and Matrices
How to determine whether a square matrix is invertible using its determinant. 
Sum of Digits  Problem 1
Math › Algebra › Word Problems Using Systems of Equations
How to solve a problem when asked to switch the digits of a 2digit number and the result is more than the original. 
Area With the Cross Product  Problem 1
Math › Precalculus › Systems of Linear Equations and Matrices
How to compute the area of a parallelogram using the cross product of the vectors that determine it. 
Percent Concentrations  Problem 2
Math › Algebra › Word Problems Using Systems of Equations
How to solve word problems about mixing two liquids with different percent concentrations and the concentration of the mixture is unknown.