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Linear Algebra

03/04/22

Finding the slope for pair of points

What is the slope for the following pair of points:(-10,8) and (16, -9)

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Linear Algebra

03/03/22

Linear transforamtion

Suppose T and U are linear transformations from Rn to Rn such that T .Ux/ D x for all x in Rn . Is it true that U.T x/ D x for all x in Rn ? Why or why not?

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Linear Algebra

03/02/22

A tree planted today has a height of 5 feet and grows one foot each month. 1. Is the height of the tree a function of the number of months? Explain your reasoning. 2.

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Linear Algebra Math Algebra

03/02/22

In a class of 42 students, the number of boys is 16 less than the girls. Find the number of boys and girls in the class.

a. Let the number of girls represented by _________b. then, the number of boys is _________c. Equation __________d. number of girls _____________e. number of boys___________

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Linear Algebra

03/02/22

Find coefficients a, b and c such that the graph of the function f(x) = ax^2 + bx + c passes through the points (0, −2),(1, 1) and (2, 3).

Find coefficients a, b and c such that the graph of the function f(x) = ax2 + bx + c passes through the points (0, −2),(1, 1) and (2, 3).

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Linear Algebra

03/01/22

Linear Algebra - Solve the system of equations using Gaussian Elimination by hand

Solve the system of equations using Gaussian Elimination by hand. Make sure you continue with the process until your augmented system in RREF form (Row Reduced Echelon Form). Write the solution... more

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Linear Algebra

02/28/22

inequality problems

Yoko is choosing between two exercise routines.In Routine #1, she burns 30 calories walking. She then runs at a rate that burns 6.75 calories per minute.In Routine #2, she does only running,... more

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Linear Algebra Math

02/27/22

If the determinant of a 4×4 matrix A is det (A) = 2, and the matrix B is obtained from A by multiplying the second row by 9, then det (B) = ?

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Linear Algebra

02/25/22

Let L and Q be lines in R^3 given by the equations: Line L: (x y z)=(1 2 0)+t(2 -3 5) and line Q: (x y z)=(3 -13 13) +r(2 3 1). Are L and Q perpendicular? Justify your answer.

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Linear Algebra

02/24/22

Suppose C is an upper triangular matrix where (1,1)-entry equals 0. What can you conclude about det(C)?

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Linear Algebra Math Calculus Electrical Engineering

02/21/22

Help with simple math matrix, calculus

Hi I need some help with simple math questions:)Find a basis for the column space K, the row space R and the zero space N (the solution set of A ~ x = ~ 0) for the matrixgiven the matrix 1 ... more

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Linear Algebra Math Calculus Electrical Engineering

02/21/22

Help, math, matrix, calculus

Hi, I need some help with simple mathematics, matrixGiven the matrix 6 -2 *B = * 6 -1 -1 * 5a) Find the missing coefficients in the matrix B so that it becomes... more

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Linear Algebra Math Calculus Electrical Engineering

02/21/22

Math, linear algebra, electrical engineer, matrix

Hi, I need some help with matrix equationsWe will look at a mouse that can move freely between two rooms A and B. If the mouse was most onroom A in the course of one day, it will be most in room B... more

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Linear Algebra Math Calculus Electrical Engineering

02/21/22

Math, linear algebra, electrical engineer

Hi, I need some help with some mathematical problems.Question 1.A line segment PQ have the coordinates P=[1,3] and Q=[4,3]. The new transformed line segment P'Q' emerges by reflecting PQ around the... more

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Linear Algebra

02/21/22

Linear programming

National Business Machines manufactures x model A portable printers and y model B portable printers. Each model A costs $100 to make, and each model B costs $150. The profits are $40 for each model... more

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Linear Algebra

02/19/22

which of these is equal to 5 (8-t) ? a. 5t-40 b. 5t+40 c. t-40 d. 40-5t

so we're learning linear expressions algebra in math and I got stuck on this question please HELP

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Linear Algebra Math Chemistry Chem

02/18/22

Use the plotting and linear regression tools in Excel to calculate K and β from the data in the table.

For the question below I am having difficulty getting the right answer and I don't know if I am wrong or if my homework software is marking it wrong when it is right. I added my answers at the... more

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Linear Algebra Math Calculus Differential Equations

02/15/22

Solve the following diffrential equation

3x2y''+11xy'-3y=8-3ln(x)

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Linear Algebra

02/13/22

Verify whether s={(x, y) |x+y=1} is a subspace of R2

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Linear Algebra Statistics Linear Equations

02/12/22

What are the decision variables, contraints and objective function for this LPP

I'm starting to learn LP and I am unable to solve this effectively. Can someone please help derive the decision variables, constraints and objective function for this problem so I can solve... more

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Linear Algebra Math Algebra

02/11/22

Find a linear equation for the height, h, in terms of the mass, x

mass (grams) 0 50 100 150height (cm) 30.6 25.8 21 16.2

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Linear Algebra Math Linear Equations

02/10/22

Linear Inequalities Maximum Revenue

Christy sells her photographs at a booth at a street fair. At the start of the day, she wants to have at least 25 photos to display at her booth. Each small photo she displays costs her $4 and each... more

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Linear Algebra

02/10/22

For what value(s) of h is b in the plane spanned by a1 and a2?

a1 = [1, 4, -2] a2 = [-2, -3, 7] b = [4, 1, h]

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Linear Algebra

02/05/22

LINEAR ALGEBRA PROBLEM

Let A be an n x n matrix. Is it possible for A² +I= O in the case where n is odd? Answer the same question in the case where n is even.

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Linear Algebra Algebra Linear Equations Functions

02/03/22

Write the equation of the line with gradient 5 and y-intercept -4

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Answers •1

Finding the slope for pair of points

Linear transforamtion

A tree planted today has a height of 5 feet and grows one foot each month. 1. Is the height of the tree a function of the number of months? Explain your reasoning. 2.

In a class of 42 students, the number of boys is 16 less than the girls. Find the number of boys and girls in the class.

Find coefficients a, b and c such that the graph of the function f(x) = ax^2 + bx + c passes through the points (0, −2),(1, 1) and (2, 3).

Linear Algebra - Solve the system of equations using Gaussian Elimination by hand

inequality problems

If the determinant of a 4×4 matrix A is det (A) = 2, and the matrix B is obtained from A by multiplying the second row by 9, then det (B) = ?

Let L and Q be lines in R^3 given by the equations: Line L: (x y z)=(1 2 0)+t(2 -3 5) and line Q: (x y z)=(3 -13 13) +r(2 3 1). Are L and Q perpendicular? Justify your answer.

Suppose C is an upper triangular matrix where (1,1)-entry equals 0. What can you conclude about det(C)?

Help with simple math matrix, calculus

Help, math, matrix, calculus

Math, linear algebra, electrical engineer, matrix

Math, linear algebra, electrical engineer

Linear programming

which of these is equal to 5 (8-t) ? a. 5t-40 b. 5t+40 c. t-40 d. 40-5t

Use the plotting and linear regression tools in Excel to calculate K and β from the data in the table.

Solve the following diffrential equation

Verify whether s={(x, y) |x+y=1} is a subspace of R2

What are the decision variables, contraints and objective function for this LPP

Find a linear equation for the height, h, in terms of the mass, x

Linear Inequalities Maximum Revenue

For what value(s) of h is b in the plane spanned by a1 and a2?

LINEAR ALGEBRA PROBLEM

Write the equation of the line with gradient 5 and y-intercept -4

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