1,975 Answered Questions for the topic linear algebra

02/21/22

Help with simple math matrix, calculus
Hi I need some help with simple math questions:)Find a basis for the column space K, the row space R and the zero space N (the solution set of A ~ x = ~ 0) for the matrixgiven the matrix 1 ... more
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02/21/22

Help, math, matrix, calculus
Hi, I need some help with simple mathematics, matrixGiven the matrix 6 -2 *B = * 6 -1 -1 * 5a) Find the missing coefficients in the matrix B so that it becomes... more
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02/21/22

Math, linear algebra, electrical engineer, matrix
Hi, I need some help with matrix equationsWe will look at a mouse that can move freely between two rooms A and B. If the mouse was most onroom A in the course of one day, it will be most in room B... more
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02/21/22

Math, linear algebra, electrical engineer
Hi, I need some help with some mathematical problems.Question 1.A line segment PQ have the coordinates P=[1,3] and Q=[4,3]. The new transformed line segment P'Q' emerges by reflecting PQ around the... more
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Linear Algebra

02/21/22

Linear programming
National Business Machines manufactures x model A portable printers and y model B portable printers. Each model A costs $100 to make, and each model B costs $150. The profits are $40 for each model... more
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Linear Algebra

02/19/22

which of these is equal to 5 (8-t) ? a. 5t-40 b. 5t+40 c. t-40 d. 40-5t

so we're learning linear expressions algebra in math and I got stuck on this question please HELP
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Linear Algebra Math Chemistry Chem

02/18/22

Use the plotting and linear regression tools in Excel to calculate K and β from the data in the table.
For the question below I am having difficulty getting the right answer and I don't know if I am wrong or if my homework software is marking it wrong when it is right. I added my answers at the... more
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02/15/22

Solve the following diffrential equation
3x2y''+11xy'-3y=8-3ln(x)
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Linear Algebra

02/13/22

Verify whether s={(x, y) |x+y=1} is a subspace of R2
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Linear Algebra Statistics Linear Equations

02/12/22

What are the decision variables, contraints and objective function for this LPP
I'm starting to learn LP and I am unable to solve this effectively. Can someone please help derive the decision variables, constraints and objective function for this problem so I can solve... more
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Linear Algebra Math Algebra

02/11/22

Find a linear equation for the height, h, in terms of the mass, x
mass (grams) 0 50 100 150height (cm) 30.6 25.8 21 16.2
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Linear Algebra Math Linear Equations

02/10/22

Linear Inequalities Maximum Revenue
Christy sells her photographs at a booth at a street fair. At the start of the day, she wants to have at least 25 photos to display at her booth. Each small photo she displays costs her $4 and each... more
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Linear Algebra

02/10/22

For what value(s) of h is b in the plane spanned by a1 and a2?
a1 = [1, 4, -2] a2 = [-2, -3, 7] b = [4, 1, h]
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Linear Algebra

02/05/22

LINEAR ALGEBRA PROBLEM

Let A be an n x n matrix. Is it possible for A² +I= O in the case where n is odd? Answer the same question in the case where n is even.
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02/03/22

Write the equation of the line with gradient 5 and y-intercept -4
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02/03/22

What is the gradient of the straight line joining (6, 5) and (8, 6)?
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01/28/22

Unsolvable 8th Grade Question
In a multinational company that employs Indians, Turks, Chinese, Germans and Australians, the Indians are one less than one-third the number of germans and three less than half the numbers of... more
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Linear Algebra Math Algebra Linear Equations

01/28/22

Linear inequality word problems
Laila is buying her friend roses for his birthday. She has $25 to spend, and wants to save at least $1.50 for a card. If roses are $2.00 each, what is the maximum number of roses Laila can purchase... more
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Linear Algebra Math Algebra Inequalities

01/27/22

Linear inequality word problems
A car traveling 60 miles per hour approaches an area with a 50 mph speed limit. In order to reduce the speed to 50 mph or less, the driver slows down the car at a constant rate of 15 feet per... more
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Linear Algebra

01/25/22

What were the most minutes used in a single month? What were the least?
A cell phone company charges $60 for an 800-minute monthly plan, plus an additional $1.22 per minute for every minute over 800. if a customer’s bill ranged from a low of $77.16 to a high of $106.86... more
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Linear Algebra

01/25/22

Inequality representing a healthy weight, for a 5 foot 9 inch woman.
A healthy weight range for a woman is given by the following formula:110 pounds for the first 5 feet (tall).2-6 pounds per inch for every inch above 5 feet.Write an inequality representing a... more
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Linear Algebra Mathematics

01/24/22

How do you calculate the complex number?
|(π + i)^100 / (π - i)^100|
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Linear Algebra Mathematics

01/24/22

How do you find all the values of the following complex numbers?
a) i^(1/4)b) 1^(1/5)c) (−16)^(1/4)
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Linear Algebra Mathematics

01/24/22

How to calculate the given complex number?
| (π +i)^100(π − i)^100 |
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Linear Algebra

01/23/22

Put in a linear equation
Rachael needs a car to rent to get to and from school. Rental is 44.00 a day, .05 a mile, school is 10 miles each way. Rachael budget is $800.00 How many days could she rent the car?
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