Use elementary row or column operations to find the determinant.15-21.4.59211

In this question we can find the determinant by using row operation . Apply row operation in second…

Answered: Use elementary row or column operations…

Algebra & Trigonometry with Analytic Geometry

13th Edition

ISBN:9781133382119

Author:Swokowski

Publisher:Swokowski

Chapter9: Systems Of Equations And Inequalities

Section9.8: Determinants

Problem 7E

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True or False ? a To find the determinant of a triangular matrix, add the entries on the main diagonal. b To find the determinant of a matrix, expand by cofactors in any row or column. c When expanding by cofactors, you need not evaluate the cofactors of zero entries.
Solve the problem. In the NHL, the correlation between "goals scored per game" (y) and the "minutes on the ice" (x) for a team of players is found to be 0.8178. Choose the statement that is FALSE about the coefficient of determination. 1) The larger the coefficient of determinaion, r2, the more accurate the prediction tends to be by the regresssion line. 2) The coefficient of determination states that about 66.88% of the variation of "goals scored per game" is explained by "minutes on the ice" 3) The coefficient of determination states that about 66.88% of the variation in "minutes on the ice" is explained by "goals scored per game" 4) When given as a percent, the coefficient of determination is always been between 0 and 100%
Question to answer: What is the determinant of the matrix? Kindly answer it fast. Thanj you
2.3 Find the determinant of the adjoint of the matrix [8]? = (3 2 −11 6 32 −4 0)
Considering the following Gauss elimination (in the image) What is the determinant of A?
The coefficient of determinion is 0.834 the question is, what does the coefficient of determination tell us about the data?
Using the paired t-test, determin if thee is a significnat difference between the means when the boards were outside v insde the chamber?
Let (please see the image below) (a) Compute AB. (b) Compute the determinants of A and B. (c) Is A invertible?(d) Is AB invertible? (Hint: think of one of the properties of determinants).
a. Find the determinant by first reducing the matrix to echelon form b. Is the matrix in part a invertible? Justify your answer.
B) Using determinants, find the values of k for which the below equations are consistent:
10. IN SIMPLE STRAIGHT FORWARD TERMS, explain exactly how the determinant is effected if 1) We scale a row (or column) of a matrix by a factor of c 2) We interchange two rows (or columns) 3) We add a multiple of one row (or column) to another row (resp. column).

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Use elementary row or column operations to find the determinant. -2 S49 115