1,975 Answered Questions for the topic linear algebra

Linear Algebra Algebra 1 Linear Equations

06/16/19

Graphically solving a system of linear equations
Graph the system below and write its solution.y = - 1/2x - 1-x - 2y = 6
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Linear Algebra Algebra 1 Algebra 2

06/16/19

solving a word problem using a system of linear equatations

Bob the trainer has two solo workout plans that he offers his clients: Plan A and Plan B. Each client does either one or the other (not both). On Friday there were 3 clients who did Plan A and 2 ... more
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Linear Algebra Algebra 1 Linear Equations

06/16/19

linear equatations
A family has two cars. The first car has a fuel efficiency of 40 miles per gallon of gas and the second has a fuel efficiency of 25 miles per gallon of gas. During one particular week, the two... more
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Linear Algebra Algebra 1

06/16/19

value mixture problem
The Martin family and the Barnes family each used their sprinklers last summer. The Martin family's sprinkler was used for 25 hours. The Barnes family's sprinkler was used for 40 hours. There was a... more
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Linear Algebra Algebra 1 Linear Equations

06/15/19

linear function help
The credit remaining on a phone card (in dollars) is a linear function of the total calling time made with the card (in minutes). The remaining credit after 36 minutes of calls is $19.96 , and the... more
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Linear Algebra

06/15/19

find the values of a for which the system has no solutions, exactly one solution, or infinitely many solutions
Can someone please explain this to me i am really confused! it will be very helpful to write the steps for how to find the solutions (one,infinite ,none).i always know how to reduce but just get... more
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Linear Algebra Math Algebra Linear Equations

06/15/19

Determine the values of a for which the system has no solutions, exactly one solution, or infinitely many solutions

Hi, i reduced this however i am stuck when it comes to finding the 3 solutions, (infinity, one , no solutions). I am confused with what do they mean with them! would appreciate it if someone can... more
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Linear Algebra Vectors Applied Mathematics

06/14/19

If vector OA = 4i + 3j , OB = 6i - 2j , OC = 2i - j , find vector AB,BC and CA and deduce the lengths of the sides of the triangle ABC
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Linear Algebra Math Algebra

06/14/19

i need some homework help
Solve for the equation of a line. 1. passing through points P1(7, 3), P2(2, -6).2. slope is -1/3, passing through P1(2, 3). 3. slope is -4, x intercept is -3/4. 4. slope is 2/3, y intercept is... more
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Linear Algebra Linear Equations

06/13/19

Solving decimal word problems using a linear equation.
Alan rented a truck for one day. There was a base fee of $14.99, and there was an additional charge of 82 cents for each mile driven. Alan had to pay $202.77 when he returned the truck. For how... more
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Linear Algebra Applied Math

06/12/19

i need help with this problem
List the elements of the set in roster notation. (Enter EMPTY or ∅ for the empty set.){x | x is a digit in the number 526,343}
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06/08/19

which of the following equation are non linear?

which of the following equations are non-linear?a) y = -4x^2 - 7 b) 7 x - 9y = 118 c) -5/3x = 2y d) y = 5x^3 + 8x e) y = 9x + 2 and for each linear equation, rewrite in standard form.
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Linear Algebra Algebra 1 Algebra 2 Algebra

06/08/19

In linear algebra, what is the difference between a consistent and inconsistent system?

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Linear Algebra

06/05/19

Interval Notation

C={z|z<=3}D={z|z<7}Write C ∩ D and C ∪D using interval notation.If the set is empty, write ∅. 
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05/30/19

Linear Programming
A manufacturer produces a product which is either bottled or canned. Daily Machine capacity is at 320 man-hours. The bottled product need 2hours per unit, while each unit of canned product requires... more
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Linear Algebra Linear Transformation

05/28/19

Is there a linear transformation where the kernel has dimension 2. Is this transformation unique?

Is there a linear transformation where the kernel has dimension 2? Is it unique?
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Linear Algebra

05/25/19

What are some real-world uses of the determinant of a matrix?
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Linear Algebra

05/25/19

Why study linear algebra?
Simply as the title says. I've done some research, but still haven't arrived at an answer I am satisfied with. I know the answer varies in different fields, but in general, why would someone study... more
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Linear Algebra

05/25/19

What is the difference between linear and non linear equations?
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05/25/19

Very good linear algebra book.?
I plan to self-study linear algebra this summer. I am sorta already familiar with vectors, vector spaces and subspaces and I am really interested in everything about matrices (diagonalization,... more
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Linear Algebra

05/25/19

Where to start learning Linear Algebra?
I'm starting a very long quest to learn about math, so that I can program games. I'm mostly a corporate developer, and it's somewhat boring and non exciting. When I began my career, I chose it... more
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Linear Algebra

05/25/19

What is the difference between a point and a vector?
I understand that a vector has direction and magnitude whereas a point doesn't. However, in the course notes that I am using, it is stated that a point is the same as a vector. Also, can you do... more
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Linear Algebra

05/25/19

What's the use of matrices in real life?
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Linear Algebra Functions Axiom Of Choice

05/25/19

What is a basis for the vector space of continuous functions?
A natural vector space is the set of continuous functions on $\\mathbb{R}$. Is there a nice basis for this vector space? Or is this one of those situations where we're guaranteed a basis by... more
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Linear Algebra Linear Equations

05/24/19

Linear equation question
You are moving and need a rental truck. The rental company you have chosen charges a $70/day fee plus $0.20 for every mile you travel. Write a linear equation that expresses the total cost y, where... more
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