1,963 Answered Questions for the topic linear algebra

Linear Algebra

08/29/22

Given A is a known 3x3 matrix, and given x is a solution of A|b (also known), then how do I find the vector b?
The matrix A is:1,5,60,1,13,8,1And x is:131
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Linear Algebra

08/28/22

Linear equation
A hotel manager found that his gross receipts for the​ day, including a 5% sales​ tax, were $4186.35. Find the amount of sales tax collected.
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Linear Algebra

08/28/22

Linear algebra find the equation
Parallel to y=2x+5 and passes the line (4,3)
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Linear Algebra

08/27/22

need help please
Write an equation for a line perpendicular to y = − 2 x − 4 and passing through the point (-4,-7)
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Linear Algebra Math Calculus

08/26/22

consistent linear system help
Determine the value of h such that the matrix is the augmented matrix of a consistent linear system. 3 -7 | h-12 28 | 6h = ????
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Linear Algebra Math Calculus

08/26/22

linear system with infinite solutions help
Determine the value of h such that the matrix is the augmented matrix of a linear system with infinitely many solutions.8 -7 | 324 h | 9h = ____________
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Linear Algebra Math Calculus Mathematica

08/26/22

Linear system what does H not equal
Let k, h be unknown constants and consider the linear system:x - 4y + 7z = -77x - 4y +8z = 317x - 20y + hz = kThis system has a unique solution whenever h does not equal ???
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Linear Algebra Math Calculus

08/25/22

temperature system
In a grid of wires, the temperature at exterior mesh points is maintained at constant values as shown in the figure. When the grid is in thermal equilibrium, the temperature at each interior mesh... more
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Linear Algebra English Chemistry Econometrics

08/25/22

Consider the equation 2(5x-4)=ax+b; find a value for a and a value for b that the equation has no solution
Also if you can be kind, can you also find infinitely many solutionsHow to set it upa=____ b=____Thank you!
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Linear Algebra Math Calculus Mathematica

08/24/22

parabola find the equation
The equation for a parabola has the form y = ax^2 + bx + c, where a, b, and c are constants and a≠0. Find an equation for the parabola that passes through the points (−1,−9), (−3,1), and (3,19).y =... more
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Linear Algebra Math Calculus Mathematica

08/24/22

rate investment system of equations

A man invests his savings in two accounts, one paying 6% and the other paying 10% simple interest per year. He puts twice as much in the lower-yielding account because it is less risky. His annual... more
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Linear Algebra

08/24/22

Find all the value of x that satisfy at least one of the two inequalities 2x-7\le 1 or 2x+1>3
Find all the value of x that satisfy at least one of the two inequalities 2x-7≤ 1 or 2x+1>3
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Linear Algebra

08/24/22

the inequality in interval notation is?
2x+1≤11
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Linear Algebra

08/16/22

Let D(x) =3x^6-2 Write the equations of any functions h and k, so that D(x)=h(k(x)). Do not use k(x)=x or h(x)=x
a) h(x)= K(x)=b) Use your answer from a) to determine D(x)=h(k(x))
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Linear Algebra

08/12/22

Class 8 chapter 2 CBSE linear equation in one variable
RamRam went to a book shop to purchase three books maths science Hindi each if total cost of maths and Science book is rupees 105 and the cost of math book is rupees 15 more than that of science... more
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Linear Algebra Math Algebra 1 Calculus

08/11/22

I need an example question
please write and solve a monte carlo integration question. I need to understand how to solve them I have an exam tomorrow. Thank you for your time.
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Linear Algebra Math Algebra 1 Algebra 2

08/11/22

Queuing System please help
there is a barber shop. customers arrives in every 5 mins with exponentially distributed process. only one server who on the avarege takes 10 mins to finish a customer A) what is utilizationB) what... more
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08/09/22

Question dealing with Physics, specifically working with spherical coordinates, uni level.
The spherical coordinates of a circular ring are a, α. A sphere of relative capacitivity K and radius b has the origin as its center. If the ring carries a charge of linear density τ, find the... more
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Linear Algebra

08/09/22

Linear Equations In Two Variables
Write an equation in slope-intercept form that passes through (3,-2) and is perpendicular to y = 4/3x - 1.
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Linear Algebra

08/09/22

Word Problem - Algebra
When a band plays at the main stage of a 1,100-person festival, they sell 21 T-shirts. Their next festival gig involves playing on the main stage at a 2,900-person festival. How many T- shirts do... more
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Linear Algebra

08/08/22

Find an ordered pair (x,y) that is a solution to the equation 3x+y=1
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Linear Algebra Math Calculus

08/05/22

linear programming question
A furniture manufacturer employs 6 skilled and 11 semiskilled workers and produces two products: study table and computer table. A study table requires 2 h of a skilled worker and 2 h of an... more
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Linear Algebra Math Algebra 1 Algebra 2

08/05/22

Maximum Possible Profit
The total cost of producing x items per day is (45x+27)dollars , and the price per item at which each may be sold is (60-0.5x)dollars . find an expression for the daily profit, and hence find the... more
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Linear Algebra Math Algebra 1 Algebra 2

08/05/22

Mathematical Modelling Question
A string 72 cm is to be cut into two pieces. One piece is used to form a circle and the other a square. What should be the perimeter of the square in order to minimize the sum of two areas?
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Linear Algebra Math Algebra 1 Algebra 2

08/05/22

Maximum Possible Profit
The total cost of producing x items per day is (45x+27)dollars , and the price per item at which each may be sold is (60-0.5x)dollars . find an expression for the daily profit, and hence find the... more
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