1,472 Answered Questions for the topic Linear Equations

08/12/20

Find all  critical point(s) of the following system
Find all  critical point(s) of the following system: Here    are constants.   Find the general expression of its Jacobian matrix and simplify its each entry as much as possible. Determine a pair of... more
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08/12/20

Please help me with this question
  is a square matrix. Select all statement(s) from below choices that are NOT correct.a.) If  then has only one solution for any b.) If  is an eigenvalue of  then we can always find two different... more
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08/10/20

Someone please help with this question!
Use the method of Power Series to solve the following nonlinear ODE:Please only use Power series method.
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08/09/20

Linear Algebra w/ Objective Function & Constraints
Quality Security runs a state prison. Part of their contract requires them to provide each inmate with at least the minimum nutritional requirements. After the inmate’s daily meals, it has been... more
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08/08/20

Linear Algebra/Objective Function & Constraints
Consider the problem: “LUX Investments has three different possibilities. The first investment will pay 3% after the first year, the second 3.5%, and the third 6%. LUX has decided to invest... more
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08/08/20

Linear Algebra/Objective Function & Constraints
Consider the problem:“Wonder Widgets Co. manufactures three types of widgets: Standard Widget (SW), Gigantic Widget (GW), and Mini-Widget (MW) . Each widget must pass through four work centers. The... more
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08/07/20

Please help with this question!
Use the method of Power Series to solve the following nonlinear ODE:Please only use Power series method.
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08/07/20

Please clerify this question!
Given the following 1st order linear homogeneous system: its coefficient matrix    has two repeated real eigenvalues      but only one independent eigenvector    I got an answer below but I am not... more
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08/06/20

Someone please help with this question!
x'=-x+2yy'=-2x+3yWhat is the genral solution with C1 and C2?λ1=λ2=1Eigenvector= [2][2]
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Linear Equations Math Calculus Precalculus

07/30/20

Please help with the following question
If one eigenvalue of a 2 by 2 matrix   is     and a corresponding eigenvector of   is   , then the general solution of the system ODEs:A.)is  B.) can't be determined. Solving the system requires... more
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07/30/20

Please help me with this question.
Matrix is Not in reduced echelon form becauseA.)the last column has two non-zero elements.B.)ther than the leading 1 in the 3rd column, there is anothe non-zero element.C.)the non-zero element in... more
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07/30/20

Please help me with this question.
Matrixis an augenmented matrix of a linear system of equations and is in a Reduced Echelon form.If the system has only 1 solution, then A.)a=1, b=0, c can be any valueB.)a=1, b=1, c=0C.)a=0,... more
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07/30/20

Please help with augenmented matrix of a linear system of equations and is in a Reduced Echelon form
Matrix is an augenmented matrix of a linear system of equations and is in a Reduced Echelon form.If the system has only 1 solution, then A.)a=1, b=0, c can be any valueB.)a=1, b=1, c=0C.)a=0,... more
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07/30/20

Use the Eigenvalue Method to solve the following system of ODES
Use the Eigenvalue Method to solve the following system of ODES:  Hint: The corresponding coefficient matrix has a pair of complex eigenvalues.Please show steps.
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Linear Equations Linear Algebra

07/30/20

State the problem in linear programming terms and solve it using the simplex method.
A furniture manufacturing company plans to make two products chairs and tables from its available resources, which consist of 400 board feet of mahogany timber and 450 man hours of... more
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Linear Equations Math Linear Algebra Algebra

07/20/20

Algebraic word problem
Given that y = ax + b/8. When y = 1, x = 13 and when y = -1, x = -3. What is the value of b?
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Linear Equations Math Linear Algebra Algebra

07/20/20

Boat rate of change problem
A boat travels with the current at 21 km/hr and travels against the current at 13 km/hr. The speed of the boat in still water is v km/hr. What is the value of v?
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Linear Equations Math Linear Algebra Algebra

07/20/20

Fraction word problem
Alex's age now is 6/7 that of Kate's. Eight years ago, Alex's age was 2/7 as much as Kate's present age. Kate is now k years old. What is the value of k?
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Linear Equations Math Linear Algebra Algebra

07/20/20

Fraction word problem
A fraction is equivalent to 6/7. It's denominator is 5 more than its numerator. What is the denominator of this fraction?
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Linear Equations Math Linear Algebra Algebra

07/20/20

Airplane rate of change problem
Flying against the wind, a plane travels 2,400 km in 6 hours. Flying with the wind, the plane travels the same distance in 4 hours. In the absence of wind, the speed of the plane is k kilometers... more
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Linear Equations Math Linear Algebra Algebra

07/20/20

Algebraic word problem
The sum of the digits of a 2-digit number is 7. If the digits are reversed the new number is 32 more than 10 times the tens' digit of the original number. What is the original number?
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Linear Equations Math Linear Algebra Algebra

07/20/20

Age difference word problem
Julia's age now is half that of Nicola's. One year from now, Julia's age will be three-fourth of Nicola's present age. Nicola is now n years old. What is the value of n?
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Linear Equations Math Linear Algebra Algebra

07/20/20

Airplane rate of change problem

Flying against the wind, a plane travels 2,000 km in 5 hours. Flying with the wind, the plane travels the same distance in 4 hours. The speed of the wind is s kilometers per hour. What is the value... more
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Linear Equations Linear Algebra Finite Math

07/19/20

Solving Systems of Equation with row operations
3x - y + 5z = 14 2x + 3y + 4z = 7 x + y + z = 2
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Linear Equations Linear Algebra Finite Math

07/19/20

Solving Systems of equations with row operations
2x - y - 5z = 11 x + 3y + 2z = 14 3x + 8y + 7z = 35
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