LINEAR EQUATION

Having a little difficulty with LINEAR EQUATION

Systems of Equations with a Parameter

Solve each of the following systems of equations. Let z be the parameter. x + 2y + 3z = 11 2x - y + 3z = -7

Linear Systems of Equations: Gauss-Jordan Method

Solution of Linear Systems by the Gauss-Jordan Method x = 1 - y 2x = z 2z = -2 - y x - z = -3 y + z = 9 -x + z = 3 x + 3y - 6z = 7 2x - y + 2z = 0 x + y + 2z = -1

Finite Math: Supply and Demand and Cost Function

2) Supply and Demand. Let the supply and demand functions for sugar be given by p = S(q) = 1.4q - .6 and p = D(q) = -2q + 3.2, where p is the price per pound and q in the quantity in thousands of pounds. a. Graph these on the same axes. b. Find the equilibrium quantity and the equilibrium price. 3) Publishing C ...continues

Graphing feasible regions of inequalities

Having difficulty with graphing feasible regions of inequalities

Linear programming

A manufacturer of refrigerators must ship at least 100 refrigerators to its two West Coast warehouses. Each warehouse holds a maximum of 100 refrigerators. Warehouse A holds 25 refrigerators already, and warehouse B has 20 on hand. It costs $12 to ship a refrigerator to warehouse A and $10 to ship one to warehouse B. Union r ...continues

Use graphical methods to solve the linear programming problem

Use graphical methods to solve the linear programming problem (attached)

Working with conditional probability.

The following table shows frequencies for red-green color blindness, where M represents "person is male" and C represents "person is color-blind." Use this table to find the following probabilities. ------------- M---------M'------- totals C----------0.035-----0.004------0.039 C'----------0.452-----0.509------0.961 Totals ...continues

Probabilities from proportion tables

the following tables give the proportions of men and women in the U S population, and the proportions of men and women who have never married, in a recent year. men age proportion in population proportion never married 18-24 0.133 0.874 25-34 0.205 0.397 35-44 0.232 0.187 45-64 0.287 0.075 65 or over 0.142 ...continues

Understanding permutation notation.

What does P(n, n) mean?