1,975 Answered Questions for the topic linear algebra

Linear Algebra

02/18/19

Is (3, 0) a solution to the equation y = -3x?
help me understand this.please.
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Linear Algebra Algebra

02/16/19

Linear equation help

Hi, I'm struggling with this question. I've finished all the subsections besides subsection (d.) Is that section asking for the intersection point of the cost and profit axis? Can anyone post a... more
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02/14/19

hi! :) i need help on finding the constraints for this problem:
An automotive company produces cars and trucks. Each vehicle must go through an assembly and painting process. If the painting part only paints the truck, 40 trucks can be painted in one day; if... more
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Linear Algebra Geometry Algebra Proving

02/12/19

Prove: triangle ABC is congruent to triangle DCB of the given is "angle 1 is congruent to angle 2, line segment AB is parallel to line segment DC
A___________________________B | | | | | | | ... more
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Linear Algebra Math Calculus

02/10/19

Solve the linear equations by gauss elimation. Please help.

X1 + 2X2 + 3X3 = 82X1 + 4X2 + 9X3 = 84X1 + 3X2 + 2X3 = 2
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Linear Algebra Algebra Linear Equations

02/07/19

Algebra Problem Question help
Yvette is offered a new job working at Roots. She has a choice of earning $350 a week and a 5% commission on all sales or she can earn $500 a week with no commission. Determine the value of total... more
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Linear Algebra Linear Equations

01/31/19

A round trip ticket to France is $1,210 and the hotel is $62 per night. The round trip to Greece is $1,180 and the hotel is $63 per night. At what time would the destinations have the same cost

A round trip ticket to France is $1,210 and the hotel is $62 per night. The round trip to Greece is $1,180 and the hotel is $63 per night. At what time would the destinations have the same cost
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Linear Algebra Math Algebra 1 Prealgebra

01/25/19

Joanna went school supply shopping.

The rest of the question:She spent $26.79 on notebooks and pencils. Notebooks cost $2.43 each and pencils cost $1.11 each. She bought a total of 17 notebooks and pencils. How many of each did she buy? more
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Linear Algebra

01/19/19

Help with my algebra

So I’m lost in a few steps here for this problem in particular its showing me how to do it in the book but I’m not sure where they’re getting the answer from. 17 - (4n-5) = 9n-3(n+7)
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Linear Algebra

01/15/19

ith two minutes left in a basketball game, your team is 12 points behind. What are two different numbers of 2-points and 3-points shots your team could score to earn at least 12 points?
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Linear Algebra

01/11/19

Triangles Widths & Lengths

The length of a rectangle is 3 inches less than 2 times the width. The perimeter is 24 inches. Find the length and the width?
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Linear Algebra

01/07/19

algebra math equation
3 times a number increased by 6 is 24
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Linear Algebra Algebra 1

01/06/19

Write the equation of a line that is parallel to the line 3x + y = 4 and goes through the point (-2,1)
I get the answer y= 3x -2 which is wrong. Can someone break down the solution to this? I'm following methods that are all over the internet but this particular equation is difficult to me.
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Linear Algebra

12/27/18

A number is thrice another and their sum is 68. What are the numbers
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Linear Algebra

12/15/18

Can you answer this please

if you go to a basketball game and have $40 to spend on popcorn and sodas for your friends.popcorn costs $4 and sodas cost $2-write and inequality that models this situation where x is number of... more
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Linear Algebra Prealgebra

12/14/18

What is an equation of the line through ( O, -3) with a slope of 2/5
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Linear Algebra

12/05/18

I the perimeter of a rectangle is 261m and the length is (2x-6)cm and the width is (x+3)cm then what is the value of x

I the perimeter of a rectangle is 261m and the length is (2x-6)cm and the width is (x+3)cm then what is the value of x
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Linear Algebra Algebra Linear Equations

12/05/18

Algebra Homework Help
Movie tickets cost $6 for adults and $2 for children under the age of 12. If 175 movie tickets were sold with cash receipts of $750, how many children’s tickets were sold?
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Linear Algebra Algebra 1

12/02/18

Write the point-slope form of the equation of the line described. Through: (-1,4), parallel to y=-5x+2
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Linear Algebra Algebra 1

12/02/18

Write the point-slope form of the equation of the line described. Through:(4,2) parallel to y=-3/4x-5
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Linear Algebra

11/26/18

I need help! Please help me.
What is the standard form of the line that passes through the points (3,5) and (-7,2)?
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Linear Algebra

11/17/18

how do you do this?
Consider the region in the xy-plane defined the following set of linear inequalities.x≥0, y≥0 x≤10x+y≥5, x+2y≤181) Find the vertices of the feasible region.2) What is the maximum and the minimum... more
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11/17/18

Estimate using Linearization
Estimate ln(1.07) using the linearization L(x) of f(x) = ln(1 + x) at a = 0 (Round to three decimal places)L(0.07) =Find the actual value of ln(1.07). (Round to three decimal places.)Calculate the... more
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Linear Algebra Calculus Linearization

11/17/18

Estimate using Linearization
Estimate sqrt 25.1 using linearization L(x) of f(x) = sqrt x at a = 25 (Round to three decimal places)L(25.1) = Then find the actual value of sqrt 25.1
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Linear Algebra Calculus Linearization

11/17/18

Find the Linearization
Find the linearization of y = tan−1(5x) at x = 2.L(x) =
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