If a building contractor hires 8 day laborers and 2 concrete finishers, his payroll for the day is $1480. If he hires 1 day laborer and 4 concrete finishers, his daily cost is $860. Find the daily wage for each type of worker. Solve the problem using matrices

Q: How many "same" types of 1 by 3 matrices in reduced row-echelon form are there? (a) 2 (b) 3 (c) 4…

A: The general form of 1 by 3 matrix is, abc

Q: If you are given two matrices, A and B, explain how to determine if B is the multiplicative inverse…

A: Consider the given matrices: A, B Here, the objective is to determine the relation between A and B…

Q: 5 2 a 4а-5 2-а за + 2 = 6а-8 4 a -5

A: Given: 52a4a−52−a3a+24a−5=6a−8 To find the value of a

Q: If A is 2x2, B is 3x4, C is 3x2, D is 2x5, E is 5x4, and F is 2x4, find the size and number of…

A: We know that, If A and B are matrices such that Amxn and Bnxp, then matrix multiplication is ,…

Q: For the matrix B shown below, determine the value the element b14. If the element is not defined,…

A: The element aij is the element present in the ith row and jth column.

Q: Reduce the ff. matrices to its reduced row echelon form. 3 -2 4 -3 8 2 1 -7 4 1. A = 2 1 1 02 -3 1

A: Since you have posted a multiple question according to guildlines I will solve first question for…

Q: A trust fund has $ 30,000 that must be invested in two different types of bonds. The first bond pays…

A: Here the total investment is $30,000. Let the investment on the first bond is x, which pays 5%…

Q: Perform the matrix operations.

A: Consider as

Q: Given the matrices A and B shown below, find -A+ 3B. 10 B = 3 - A = -

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Q: Enter the following matrices in your calculator, and perform the listed operations, if possible. If…

A: Concept : For  multiplication two matrix to be possible number of columns in matrix one must be same…

Q: Given the matrix A, find A +B [A] = 3 0. 15 [B] = [ -3 5 %3D 4

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Q: Find the inverse of the matrix [: 3] Choices: -3 3 C. a. 4/3 1/3 1 3 1 b. -4/3 -1/3] [4/3 1/3]

A:

Q: If A is a 5X4 matrix and B is a 3X5 matrix, which of the following two products is defined (Select…

A: Explanation of the answer is as follows

Q: If a building contractor hires 5 day laborers and 2 concrete finishers, his payroll for the day is…

A: Given: Payroll of 5 day labourers and 2 concrete finishers is $1050. Payroll of 1 day labour and 5…

Q: Given the matrices A - 5 -5 2 2 2 - 2 and B - 4 2 -1 -2 5 0 A. It is Select an answer to multiply…

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Q: Enter the following matrices in your calculator, and perform the listed operations, if possible. If…

A:

Q: A clothing manufacturer makes trousers,skirts and blouses.Each trouser requires 20 minutes of…

A:

Q: la) Write the following set of equations in matrix form: 40 = 5x3 + 2x1 10 5x2 = X3 3x2 + 8x1 = 20…

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Q: A group took a trip on a bus, at $2 per child and $4 per adult for a total of $110. They took the…

A:

Q: Given the matrices A and B shown below, find -A+B. 4 50 A = -4 B =-10 6. -5

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Q: Perform the indicated matrix row operation and write the new matrix. 1 -4 5 10 -6R + R 4-3. 6. -1 2…

A: A matrix is set of numbers arranged in rows and columns. The order of a matrix is defined as number…

Q: Given the matrices A and B shown below, find -2B - A. 4 5 A -7 4 1 -6 26 4 4 10 -2 Rows: 2 Columns:…

A: We have to find the matrix

Q: Perform the matrix operations.

A:

Q: Find the product of the following matrices, if possible. 9. 6. 3 3 - 1 - 4

A: In the first matrix there are 2 rows and 2 column. And in the second matrix there are 2 row and 1…

Q: A small software corporation borrowed $335,000 to expand its software line. Some of the money was…

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Q: Perform the matrix operation. (If not 052 2 8 -3 9 1 0 36 -5

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Q: Find the following matrix product, if possible.  [-3  -4  1]  [-1] [-8  0  4]    [-5]…

A: Matrix multiplication: If the number of columns in A equals the number of rows in B, the product of…

Q: Find the transpose of the matrix. -2 -1 D = 1 4 -3

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Q: Find the product of the following matrices, if possble - 5 -6 6. 4 -8 -3 -9

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Q: Given two matrices A and B, the product BA is defined if and only if, O the number of columns of A…

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Q: If A is a 4x 10 matrix and A+ B= A, what do you know about B? Choose the correct answer below and…

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Q: A small software corporation borrowed $475,000 to expand its software line. Some of the money was…

A:

Q: Given the matrix A, find A -B -3 9 [A] = [5 [B] = [ -21 %3D -3 1

A: Given that, the matrices are A=2045-38 and B=-35941-2.

Q: For the matrix A = 3 -2 1 and B = [3 1 2], find A. B" -1 130

A:

Q: Given the matrices [A] and [B], when performing the operation [A] [B] = [C], shows the…

A: [A] is 3x4 and [B] is 4x5. So, [C]=[A] x [B] is 3x5.   So, C42 does not exist.

Q: Perform the matrix operation, or if it is impossible, explain why.

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Q: -2 -3 A = -3 -2 AB

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Q: In a special diet for a hospital​ patient, the total amount per meal of food groups​ A, B, and C…

A: From the given information, it is observed that the total quantity of a meal is 330 g.Let x, y and z…

Q: A small shoe company took out a loan of $1,500,000 to expand their inventory. Part of the money was…

A: The loan is $1,500,000 and the annual interest is $130,500. Let x be the amount of money borrowed at…

Q: If a building contractor hires 7 day laborers and 2 concrete finishers, his payroll for the day is…

A: Let x be the daily wage for a laborer and y be the daily wage for a concrete finisher.

Q: If a building contractor hires 6 day laborers and 1 concrete finisher, his payroll for the day is…

A:

Q: A small software corporation borrowed $292,500 to expand its software line. Some of the money was…

A:

Q: Perform the following matrix row operation and write the new matrix. 2 6 10 -8 1 4 6 -6 -7 0 - 1 -4

A: In a matrix a1a2a3b1b2b3c1c2c3d1d2d3 performing row operation 1kR1, k≠0, the resultant matrix will…