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1,963 Answered Questions for the topic linear algebra

Linear Algebra

05/16/15

Let L be the line y = 5-9x in R^2. Find vectors a and b so that v = a +tb is a parametric equation for L.

Stuck on this linear algebra question.

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Linear Algebra Calculus Linear Vector

04/27/15

Suppose S_1={u_1,u_2} and S_2={v_1,v_2} are each independent sets of vectors in an n-dimensional vector space V.

Let us assume that every vector in S_2 is a linear combination of vectors in S_1.Question: Does that mean that S_1 and S_2 are bases for the same subspace of V?I know that the answer to this... more

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Linear Algebra

04/21/15

How do you find the Square Root of a Matrix????

Find a Square root of the Matrix A = [4 3] [2 3] This is a 2x2 matrix

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Linear Algebra

04/19/15

How to calculate the rank of matrix with parameters?

A = {(b+3; a; 4; -2b-1)(b; -3; 5; -6)(-1; 1; 2a+1; 1-a)} No idea how to solve this, tried everything.. help please! :)

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Linear Algebra Linear Equations

03/17/15

james invests $20000 in an account that has an annual interest rate of 8.3%. which is the correct equation?

P6=20000(1+.083)6 P6=20000(1+.083)6+1 P6=20000(1+.083)6-1 P6=20000(1+.83)6-1

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Linear Algebra

03/13/15

The line passing through the origin and parallel to the line passing through points (8,5) and (-9,3)

Find the equation of the line that satisfies the given condition

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Linear Algebra

03/02/15

Linear algebra

Suppose you invest $1500 in equipment to put pictures on T-shirts. You buy each T-shirt for $3. After you have placed the picture on a shirt, you sell it for $20. How many T-shirts must you sell to... more

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Linear Algebra

02/02/15

Linear Algebra Vector Equation???

The only question on my review that I don't know how to solve. Solve for x: [ 6 ]4x + [ -3 ] = x [ -9 ] key note : [ 6 ] [ -3 ] ... more

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Linear Algebra

12/20/14

if a line has a slope of 2 and passes through (4,-1) what is the y-intercept?

so confused please help :/

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Linear Algebra Equations Linear Equations

12/08/14

solve the system of linear equations

6x+5=-20 2x+2y+6

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Linear Algebra Algebra Help Algebra Word Problem,

11/03/14

i need to know how fast this bat flew in 4 hours

a bat flying for 6 hours at an average speed of 9 km/h. the bat flew at 11km/h during the first 2 hours of its flight. how fast did the bat fly the last 4 hours?

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Linear Algebra Linear Equations Maths

09/15/14

Finding solutions to equations with the constant k? Linear algebra

Consider the system of linear equations x+ 2y =2 -x + (k-3)y +3z = −2 2x + (k+3)y + (k+3)z = 5 where k ∈ R is a constant. Determine the values of k for which the system has a unique solution,... more

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Linear Algebra

06/27/14

basis for R^3

{(1,2,4)T,(2,1,3)T,(4,-1,1)T} is a basis for R3

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Linear Algebra

06/27/14

express matrix A as a skew symmetric and symmetric matrix

express matrix 'A' as a skew symmetric and symmetric matrix

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Linear Algebra

06/25/14

show that V=M where m is m*n matrix of real entries is a vector space

show that V=Mm×n is a m×n matrix of real entries is a vector space

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Linear Algebra

06/25/14

express matrix A as a skew symmetric and symmetric matrix

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Linear Algebra

04/28/14

what is cloumn space

what is column space.how who can we can find it.what are the basis .give me idea

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Linear Algebra

04/20/14

Find the normal vector of the plane that is pointing into the part of the plane which has the origin.

A plane called p has the cartesian equation 4x + 2y - 2z = 7 Given that the plane separates 3D space into two parts. Find the normal vector of the plane, pointing into the part which... more

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