Algebra - Echelon Method and other problems
Not what you're looking for?
Use the echelon method to solve the system of three equations in three unknowns.
8) x-y+2z=-2
5x + z=0
x+2y+z=4
9) Determine the equation of the line described. Put the answer in the slope -intercept form, if possible. Through (-7,-7), parallel to 5x-4y=-19
10) Write a word or phrase that best completes each statement or answers the question.
If a company decides to make a new product, there are fixed costs and variable costs associated with this new product. Explain the differences of the two types of costs and why they occur. Use an example to illustrate your point.
Purchase this Solution
Solution Summary
A complete, neat and step-by-step solution is provided with regards to the Echelon Method.
Solution Preview
(8) See the attached file for the answer
(9) Since the line is parallel to 5x - 4y = -19, it has the form 5x - 4y = k. Since it contains (-7, -7), we have ...
Purchase this Solution
Free BrainMass Quizzes
Graphs and Functions
This quiz helps you easily identify a function and test your understanding of ranges, domains , function inverses and transformations.
Multiplying Complex Numbers
This is a short quiz to check your understanding of multiplication of complex numbers in rectangular form.
Solving quadratic inequalities
This quiz test you on how well you are familiar with solving quadratic inequalities.
Know Your Linear Equations
Each question is a choice-summary multiple choice question that will present you with a linear equation and then make 4 statements about that equation. You must determine which of the 4 statements are true (if any) in regards to the equation.
Probability Quiz
Some questions on probability