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Linear Algebra

10/18/21

form a polynomial function whose real zeros and degree are given.Answers will vary depending on the choice of a leading coefficient. Zeros:–4,–1,2,3; degree 4.

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10/17/21

Matrices question

Hi I'm am struggling to answer the last question in my textbooks chapter...Three crop sprays are manufactured by combining chemicals A, B and C as follows:One barrel of spray P contains 1 unit of... more

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Linear Algebra Math Mathematics

10/14/21

Math Linear Algebra help

Find equations for all the planes that intersect the y-axis at y = 1 and the z-axis at z = 2, and are tangent to the sphere (𝑥 − 2)^2 + 𝑦^2 + 𝑧^2 = 4. You cannot use calculusPlease help and if you... more

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Linear Algebra Math Algebra 1 Algebra 2

10/09/21

Name any two points on a horizontal line that is 8 units above the x-axis. (Enter your answers as a comma-separated list of ordered pairs.)

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Linear Algebra Math Algebra 1 Algebra 2

10/09/21

Write as an ordered pair the coordinates of the point whose y-coordinate is 5 and whose x-coordinate is −2.

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Linear Algebra

10/07/21

Find general solution for the system of linear equations

2x+4y+z=3x+2y+2z=3x+2y+z=2

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Linear Algebra

10/05/21

compute the following. If an answer does not exist, enter DNE.

Let A= [ 5 ] [ 1 ] [ 5 ]If possible, compute the following.A^TA=AA^T=

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Linear Algebra

10/01/21

linearly dependent set

Let be a linearly independent set.Which of the following sets are linearly dependent?1) {u+v,4u+4v}2) {6u,6v}3) {u,0}4) {u,u+v}

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Linear Algebra Functions

09/30/21

Writing equations of lines parallel and perpendicular to a given line through a point

Consider the line 4x+2y=-6.Find the equation of the line that is parallel to this line and passes through the point (4,4).Find the equation of the line that is perpendicular to this line and passes... more

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Linear Algebra Geometry Algebra

09/29/21

How to find the geometric description of the system of equation?

For example, -x + y - 3z = -3x - y - 2z = 25x - 5y - 5z = 12How do I know if it is:a. three planes intersecting in a lineb. three planes with no common intersectionc. three planes intersecting at a... more

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Linear Algebra

09/29/21

Find the value of 𝜆 that makes the determinant 0. | 𝜆 +2 2| second-row -> |1 𝜆 |

Find the value of 𝜆 that makes the determinant 0. | 𝜆 +2 2| | 1 𝜆 |

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Linear Algebra

09/29/21

Find the value of 𝜆 that makes the determinant 0. | 𝜆 +2 2| second-row -> |1 𝜆 |

Find the value of 𝜆 that makes the determinant 0. | 𝜆 +2 2| | 1 𝜆 |

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Linear Algebra Discrete Math Proofs Advanced Math

09/25/21

Let f: A→B be a function, and X⊆A.Prove or disprove: f(f^−1(f(X)))=f(X).

More clearly written: Let f: A→B be a function, and X⊆A.Prove or disprove: f(f-1(f(X)))=f(X).I'm not sure where to even begin with this question...

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Linear Algebra Matrix Linear Transformations Find Standard Matrix

09/25/21

Can I find a standard matrix when only two linear transformations are given?

Hi!I study linear algebra in Swedish so sorry if I get some of the words wrong.My question is, how do you find A when A*(1,1,1)=(1,0,1) and A*(1,0-1)=(1,1,2) where A is a 3x3 matrix.I know when... more

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Linear Algebra

09/25/21

Find all values of a, b, and c for which A is symmetric.

A=[-2 a-2b+c 2a+b+c] [2 8 a+c ] [8 2 -4 ]How do I find a,b, and c?(please make your answer as detailed as possible because I find it hard to... more

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Linear Algebra Algebra

09/24/21

Age problem having a difficult time understanding equations

Juwan is 3 years older than Erica. In 5 years the sum of their ages will be 53. How old is Juwan now?

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Linear Algebra Math Algebra 1 Algebra 2

09/24/21

Need helping with correlation coefficents

Just need an explanation and work shown so I can understand how you worked through it so I can finish the rest of the assignment. I know this can also be done in excel but I was not exactly sure... more

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Linear Algebra

09/23/21

Thru (-21,4) m=undef

Is this a vertical line or a horizontal line

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Linear Algebra

09/22/21

linear function

find the linear function with the following propertiesf(0)=−6f(0)=-6Slope of f=5f=5f(0)=−6f(0)=-6Slope of f=5f=5 f(x)f(x) yy x2x2

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Linear Algebra Math Algebra

09/22/21

Solve the system by inverting the coefficient matrix and using the following theorem:

If A is an invertible n x n matrix, then for each n x 1 matrix b, the system of equations A x = b has exactly one solution, namely, x = a^-1b. x + y + z = 3x + y - 2z = 6-2x + y + z = 0

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Linear Algebra Math Algebra 1 Calculus

09/21/21

Arizona taxes problem.

The following is from the actual Arizona state tax table for 2020 taxes.A single person whose taxable income is between $0-$27,272 is charged 2.59% in tax.A single person whose taxable income is... more

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Linear Algebra Calculus

09/20/21

Multivariable calculus

Find two non-zero vectors u and v in R3 such that {s u+ t v | s, t ∈ R} is a line in R3.

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Linear Algebra Math Algebra 1 Calculus

09/20/21

Piecewise linear functions

Derek earns $25 per hour (or part of an hour) for a regular 40-hour work week. Sometimes, he works over 40 hours a week and earns “double time” for the extra hours worked. (That means that his... more

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Linear Algebra

09/16/21

Linear Algebra Transformations

The linear transformation T : R2 → R2 given by T (x) =[3 42 3]x is one-to-one and onto.Let ~b =[cd]. Find the unique vector x so that T (b) = x. (The entries of x will be expressed interms of c and... more

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Linear Algebra

09/15/21

When using partial fractions to find antiderivatives in calculus we decompose complicated rational expressions into the sum of simpler expressions that can be integrated individually.

The required decomposition is 64/(x(x^2+8))=(A/x)+(Bx+C)/(x^2+8) Find the values of the missing constants. A= 8 B= -8 C= ?

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form a polynomial function whose real zeros and degree are given.Answers will vary depending on the choice of a leading coefficient. Zeros:–4,–1,2,3; degree 4.

Matrices question

Math Linear Algebra help

Name any two points on a horizontal line that is 8 units above the x-axis. (Enter your answers as a comma-separated list of ordered pairs.)

Write as an ordered pair the coordinates of the point whose y-coordinate is 5 and whose x-coordinate is −2.

Find general solution for the system of linear equations

compute the following. If an answer does not exist, enter DNE.

linearly dependent set

Writing equations of lines parallel and perpendicular to a given line through a point

How to find the geometric description of the system of equation?

Find the value of 𝜆 that makes the determinant 0. | 𝜆 +2 2| second-row -> |1 𝜆 |

Find the value of 𝜆 that makes the determinant 0. | 𝜆 +2 2| second-row -> |1 𝜆 |

Let f: A→B be a function, and X⊆A.Prove or disprove: f(f^−1(f(X)))=f(X).

Can I find a standard matrix when only two linear transformations are given?

Find all values of a, b, and c for which A is symmetric.

Age problem having a difficult time understanding equations

Need helping with correlation coefficents

Thru (-21,4) m=undef

linear function

Solve the system by inverting the coefficient matrix and using the following theorem:

Arizona taxes problem.

Multivariable calculus

Piecewise linear functions

Linear Algebra Transformations

When using partial fractions to find antiderivatives in calculus we decompose complicated rational expressions into the sum of simpler expressions that can be integrated individually.

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