Newest linear algebra Questions | Wyzant Ask An Expert

I'm trying to help my son with algebra and he got the following problem. His in the 8th grade, but they are having him do HS algebra and he's having a difficult time.The U.S. population in 1910... more

Follows • 1

Answers •1

Linear Algebra Geometry Translation Matrices

10/21/20

Find the matrix that performs this translation.

This problem will walk through the process of rotating by 90 degrees counterclockwise around the point (3, 5). Our strategy for rotation around the point (3, 5) will be to begin with a vector whose... more

Follows • 1

Answers •1

Linear Algebra

10/17/20

Find all values of c1 and c2 such that: c1(2, 2, 1) + c2(1,-2,2) = (3,6,0)

Follows • 1

Answers •1

Linear Algebra Algebra 1

10/16/20

Proofs for symmetric matrices and skew-symmetric matrices

A square matrix 𝐶C is called skew-symmetric if 𝐶𝑇=−𝐶CT=−C.Let 𝐴A be an 𝑛×𝑛n×n square matrix. Set 𝐵=12(𝐴+𝐴𝑇)B=12(A+AT) and 𝐶=12(𝐴−𝐴𝑇)C=12(A−AT).(a) (4 marks) Show that 𝐵B is a symmetric matrix... more

Follows • 1

Answers •1

Linear Algebra

10/16/20

: You are given the vectors u = (2, 1, 1, 2) and v = (3, 2, −1, 2). Find the values of t such that u · (u + tv) = 16

Follows • 1

Answers •1

Linear Algebra

10/16/20

Find the point X which divides the segment between A(2, 3) and B(5, 8) into a ratio of 1 : 3.

Follows • 1

Answers •1

Linear Algebra

10/14/20

A 3×3 matrix 𝐴 has det(𝐴)=2020. Find det(Adj(𝐴)).

Follows • 1

Answers •1

Linear Algebra Math

10/12/20

Math Linear Algebra

Find all values of k for which the vectors[1, 1, 1, 1], [1, 2, 3, k], [1, 4, 9, k^2], [1, 8, 27, k^3]are linearly dependent.

Follows • 1

Answers •1

Linear Algebra

10/12/20

An n×n matrix A has a fixed point if there is a vector v in Rn with A*v = v.

1)Show that every such A has at least one fixed point. 2) The identity matrix has infinitely many fixed points. For all arbitrary 2 × 2 matrices A, show that if A has two distinct fixed points v... more

Follows • 1

Answers •1

Linear Algebra

10/12/20

Help please! Linear algebra

273 students enrolled in a freshman level chemistry class. By the end of the semester, 6 times the number of students passed as failed. Find the number of students who passed, and the number of... more

Follows • 1

Answers •1

Linear Algebra

10/11/20

In the year 1989, an investment was worth $30200. In the year 1996, this investment was worth $35800. What is the value and rate of this investment?

Follows • 1

Answers •1

Linear Algebra

10/10/20

Linear Algebra Notes and Confusion.

Hi, while reading the beginning of the notes in my linear algebra section I immediately hit a wall of confusion. (I've been googling on this and can't find out how he did this.) In the notes (which... more

Follows • 1

Answers •1

Linear Algebra Proofs

10/08/20

Order 8 of the following sentences so that they form a direct proof of the statement: 𝐴 is a square matrix. Prove that if 𝐴2=𝐴, then either 𝐴=𝐼 or 𝐴 is singular.

Order 8 of the following sentences so that they form a direct proof of the statement:A is a square matrix. Prove that if , then either or is singular.Options: Let A be an m×n matrix. Assume... more

Follows • 1

Answers •1

Linear Algebra Proofs

10/08/20

Order 6 of the following sentences so that they form a proof by CONTRAPOSITIVE of the statement: 𝐴 is a square matrix. Prove that if 𝐴^2=𝐴, then either 𝐴=𝐼 or 𝐴 is singular.

Order 6 of the following sentences so that they form a proof by CONTRAPOSITIVE of the statement: 𝐴 is a square matrix. Prove that if , then either or is singular.Options: Let A be an m×n... more

Follows • 1

Answers •1

Linear Algebra Proofs

10/08/20

Order 9 of the following sentences so that they form a proof by induction of the statement: 1^2+2^2+3^2+...+𝑛2=𝑛(𝑛+1)(2𝑛+1)/6 for all natural numbers n.

Order 9 of the following sentences so that they form a proof by induction of the statement:12+22+32+...+𝑛2=𝑛(𝑛+1)(2𝑛+1)/6 for all natural numbers n.Options We will proceed by induction to prove... more

Follows • 1

Answers •1

Linear Algebra Proofs

10/08/20

Order 8 of the following sentences so that they form a proof by induction of the statement: 2^𝑛>4𝑛 for 𝑛>4.

Order 8 of the following sentences so that they form a proof by induction of the statement: 2n>4n for 𝑛>4.Options: Base Case: n=5 Inductive Hypothesis: Assume 2k>4k LHS: 25=32, RHS:... more

Follows • 1

Answers •1

Linear Algebra

10/08/20

Which of the following is my assumption in order to do a proof by CONTRAPOSITIVE?

Consider the following statement: If an m x n matrix A is the zero matrix, then it is made entirely of zeros and makes students happy."Which of the following is my assumption in order to do a proof... more

Follows • 1

Answers •1

Linear Algebra Algebra

10/07/20

What is the price per ticket for a student ticket?

A movie theater advertises that a family of two adults, one student, and one child between the ages of 3 and 8 can attend a movie for $15. An adult ticket costs as much as the combined cost of a... more

Follows • 1

Answers •1

Linear Algebra

10/07/20

A is a matrix such that 𝐴^2+3𝐴−𝐼=0. Show that 𝐴 is invertible.

Follows • 1

Answers •1

Linear Algebra

10/07/20

A is a matrix such that 𝐴^2+3𝐴−𝐼=0. Show that 𝐴 is invertible and 𝐴^−1=𝐴+3𝐼.

Follows • 0

Answers •1

Linear Algebra Algebra 1 Critical Thinking

10/06/20

Algebraic equation

Here it is:Casper has 15 pencils. Kenny has an odd number of more pencils than Casper. If Kenny had the same amount of pencils as Casper, then he would have less than Jones. Jones has 2 1/2 times... more

Follows • 1

Answers •1

Linear Algebra

10/06/20

word problems with linear equations

A garden table and a bench cost $843 combined. The garden table costs $57 less than the bench. What is the cost of the bench?

Follows • 1

Answers •1

determine the complex solutions of the equation

determine the complex solutions of the equation

What is the area of triangle bounded by the x-axis, the y-axis, and the line y=−4x+4?

Can you help me create a linear model?

Find the matrix that performs this translation.

Find all values of c1 and c2 such that: c1(2, 2, 1) + c2(1,-2,2) = (3,6,0)

Proofs for symmetric matrices and skew-symmetric matrices

: You are given the vectors u = (2, 1, 1, 2) and v = (3, 2, −1, 2). Find the values of t such that u · (u + tv) = 16

Find the point X which divides the segment between A(2, 3) and B(5, 8) into a ratio of 1 : 3.

A 3×3 matrix 𝐴 has det(𝐴)=2020. Find det(Adj(𝐴)).

Math Linear Algebra

An n×n matrix A has a fixed point if there is a vector v in Rn with A*v = v.

Help please! Linear algebra

In the year 1989, an investment was worth $30200. In the year 1996, this investment was worth $35800. What is the value and rate of this investment?

Linear Algebra Notes and Confusion.

Order 8 of the following sentences so that they form a direct proof of the statement: 𝐴 is a square matrix. Prove that if 𝐴2=𝐴, then either 𝐴=𝐼 or 𝐴 is singular.

Order 6 of the following sentences so that they form a proof by CONTRAPOSITIVE of the statement: 𝐴 is a square matrix. Prove that if 𝐴^2=𝐴, then either 𝐴=𝐼 or 𝐴 is singular.

Order 9 of the following sentences so that they form a proof by induction of the statement: 1^2+2^2+3^2+...+𝑛2=𝑛(𝑛+1)(2𝑛+1)/6 for all natural numbers n.

Order 8 of the following sentences so that they form a proof by induction of the statement: 2^𝑛>4𝑛 for 𝑛>4.

Which of the following is my assumption in order to do a proof by CONTRAPOSITIVE?

What is the price per ticket for a student ticket?

A is a matrix such that 𝐴^2+3𝐴−𝐼=0. Show that 𝐴 is invertible.

A is a matrix such that 𝐴^2+3𝐴−𝐼=0. Show that 𝐴 is invertible and 𝐴^−1=𝐴+3𝐼.

Algebraic equation

word problems with linear equations

Still looking for help? Get the right answer, fast.

OR

RELATED TOPICS

RELATED QUESTIONS

Linear Algebra

what is a straight edge

Why must the determinant of a matrix with integer entries be an integer?

RECOMMENDED TUTORS

find an online tutor