 7.3.1: Fill in the blanks A system of equations that is in ________ form h...
 7.3.2: Fill in the blanks A solution to a system of three linear equations...
 7.3.3: Fill in the blanks The process used to write a system of linear equ...
 7.3.4: Fill in the blanks Interchanging two equations of a system of linea...
 7.3.5: Fill in the blanks A system of equations is called ________ if the ...
 7.3.6: Fill in the blanks The equation is called the ________ equation, an...
 7.3.7: In Exercises 510, use backsubstitution to solve the system of line...
 7.3.8: In Exercises 510, use backsubstitution to solve the system of line...
 7.3.9: In Exercises 510, use backsubstitution to solve the system of line...
 7.3.10: In Exercises 510, use backsubstitution to solve the system of line...
 7.3.11: In Exercises 11 and 12, perform the row operation and write the equ...
 7.3.12: In Exercises 11 and 12, perform the row operation and write the equ...
 7.3.13: In Exercises 1338, solve the system of linear equations and check a...
 7.3.14: In Exercises 1338, solve the system of linear equations and check a...
 7.3.15: In Exercises 1338, solve the system of linear equations and check a...
 7.3.16: In Exercises 1338, solve the system of linear equations and check a...
 7.3.17: In Exercises 1338, solve the system of linear equations and check a...
 7.3.18: In Exercises 1338, solve the system of linear equations and check a...
 7.3.19: In Exercises 1338, solve the system of linear equations and check a...
 7.3.20: In Exercises 1338, solve the system of linear equations and check a...
 7.3.21: In Exercises 1338, solve the system of linear equations and check a...
 7.3.22: In Exercises 1338, solve the system of linear equations and check a...
 7.3.23: In Exercises 1338, solve the system of linear equations and check a...
 7.3.24: In Exercises 1338, solve the system of linear equations and check a...
 7.3.25: In Exercises 1338, solve the system of linear equations and check a...
 7.3.26: In Exercises 1338, solve the system of linear equations and check a...
 7.3.27: In Exercises 1338, solve the system of linear equations and check a...
 7.3.28: In Exercises 1338, solve the system of linear equations and check a...
 7.3.29: In Exercises 1338, solve the system of linear equations and check a...
 7.3.30: In Exercises 1338, solve the system of linear equations and check a...
 7.3.31: In Exercises 1338, solve the system of linear equations and check a...
 7.3.32: In Exercises 1338, solve the system of linear equations and check a...
 7.3.33: In Exercises 1338, solve the system of linear equations and check a...
 7.3.34: In Exercises 1338, solve the system of linear equations and check a...
 7.3.35: In Exercises 1338, solve the system of linear equations and check a...
 7.3.36: In Exercises 1338, solve the system of linear equations and check a...
 7.3.37: In Exercises 1338, solve the system of linear equations and check a...
 7.3.38: In Exercises 1338, solve the system of linear equations and check a...
 7.3.39: In Exercises 3942, an object moving vertically is at the given heig...
 7.3.40: In Exercises 3942, an object moving vertically is at the given heig...
 7.3.41: In Exercises 3942, an object moving vertically is at the given heig...
 7.3.42: In Exercises 3942, an object moving vertically is at the given heig...
 7.3.43: In Exercises 4346, find the equation of the parabola that passes th...
 7.3.44: In Exercises 4346, find the equation of the parabola that passes th...
 7.3.45: In Exercises 4346, find the equation of the parabola that passes th...
 7.3.46: In Exercises 4346, find the equation of the parabola that passes th...
 7.3.47: In Exercises 4750, find the equation of the circle that passes thro...
 7.3.48: In Exercises 4750, find the equation of the circle that passes thro...
 7.3.49: In Exercises 4750, find the equation of the circle that passes thro...
 7.3.50: In Exercises 4750, find the equation of the circle that passes thro...
 7.3.51: Sports In Super Bowl I, on January 15, 1967, the Green Bay Packers ...
 7.3.52: Sports In the 2004 Womens NCAA Final Four Championship game, the Un...
 7.3.53: Finance A small corporation borrowed $775,000 to expand its clothin...
 7.3.54: Finance A small corporation borrowed $800,000 to expand its line of...
 7.3.55: The certificates of deposit pay 10% annually, and the municipal bon...
 7.3.56: The certificates of deposit pay 9% annually, and the municipal bond...
 7.3.57: Agriculture A mixture of 5 pounds of fertilizer A, 13 pounds of fer...
 7.3.58: Agriculture A mixture of 12 liters of chemical A, 16 liters of chem...
 7.3.59: Coffee Mixture A coffee manufacturer sells a 10pound package of co...
 7.3.60: Floral Arrangements A florist is creating 10 centerpieces for a wed...
 7.3.61: Advertising A health insurance company advertises on television, ra...
 7.3.62: Radio You work as a disc jockey at your college radio station. You ...
 7.3.63: Acid Mixture A chemist needs 10 liters of a 25% acid solution. The ...
 7.3.64: Acid Mixture A chemist needs 12 gallons of a 20% acid solution. The...
 7.3.65: Electrical Network Applying Kirchhoffs Laws to the electrical netwo...
 7.3.66: Pulley System A system of pulleys is loaded with 128 pound and 32...
 7.3.67: In Exercises 6770, find the least squares regression parabola for t...
 7.3.68: In Exercises 6770, find the least squares regression parabola for t...
 7.3.69: In Exercises 6770, find the least squares regression parabola for t...
 7.3.70: In Exercises 6770, find the least squares regression parabola for t...
 7.3.71: Data Analysis: Wildlife A wildlife management team studied the repr...
 7.3.72: Data Analysis: Stopping Distance In testing a new automobile brakin...
 7.3.73: Sports In Super Bowl XXXVIII, on February 1, 2004, the New England ...
 7.3.74: Sports In the 2005 Orange Bowl, the University of Southern Californ...
 7.3.75: In Exercises 7578, find values of and that satisfy the system. Thes...
 7.3.76: In Exercises 7578, find values of and that satisfy the system. Thes...
 7.3.77: In Exercises 7578, find values of and that satisfy the system. Thes...
 7.3.78: In Exercises 7578, find values of and that satisfy the system. Thes...
 7.3.79: True or False? In Exercises 79 and 80, determine whether the statem...
 7.3.80: True or False? In Exercises 79 and 80, determine whether the statem...
 7.3.81: Think About It Are the following two systems of equations equivalen...
 7.3.82: Writing When using Gaussian elimination to solve a system of linear...
 7.3.83: In Exercises 8386, find two systems of linear equations that have t...
 7.3.84: In Exercises 8386, find two systems of linear equations that have t...
 7.3.85: In Exercises 8386, find two systems of linear equations that have t...
 7.3.86: In Exercises 8386, find two systems of linear equations that have t...
 7.3.87: In Exercises 8790, solve the percent problem What is of 85?
 7.3.88: In Exercises 8790, solve the percent problem 225 is what percent of...
 7.3.89: In Exercises 8790, solve the percent problem 0.5% of what number is...
 7.3.90: In Exercises 8790, solve the percent problem 48% of what number is ...
 7.3.91: In Exercises 9196, perform the operation and write the result in st...
 7.3.92: In Exercises 9196, perform the operation and write the result in st...
 7.3.93: In Exercises 9196, perform the operation and write the result in st...
 7.3.94: In Exercises 9196, perform the operation and write the result in st...
 7.3.95: In Exercises 9196, perform the operation and write the result in st...
 7.3.96: In Exercises 9196, perform the operation and write the result in st...
 7.3.97: In Exercises 97100, (a) determine the real zeros of and (b) sketch ...
 7.3.98: In Exercises 97100, (a) determine the real zeros of and (b) sketch ...
 7.3.99: In Exercises 97100, (a) determine the real zeros of and (b) sketch ...
 7.3.100: In Exercises 97100, (a) determine the real zeros of and (b) sketch ...
 7.3.101: In Exercises 101104, use a graphing utility to construct a table of...
 7.3.102: In Exercises 101104, use a graphing utility to construct a table of...
 7.3.103: In Exercises 101104, use a graphing utility to construct a table of...
 7.3.104: In Exercises 101104, use a graphing utility to construct a table of...
 7.3.105: In Exercises 105 and 106, solve the system by elimination.
 7.3.106: In Exercises 105 and 106, solve the system by elimination.
 7.3.107: Make a Decision To work an extended application analyzing the earni...
Solutions for Chapter 7.3: Multivariable Linear Systems
Full solutions for Precalculus  7th Edition
ISBN: 9780618643448
Solutions for Chapter 7.3: Multivariable Linear Systems
Get Full SolutionsThis expansive textbook survival guide covers the following chapters and their solutions. Precalculus was written by and is associated to the ISBN: 9780618643448. Since 107 problems in chapter 7.3: Multivariable Linear Systems have been answered, more than 35060 students have viewed full stepbystep solutions from this chapter. Chapter 7.3: Multivariable Linear Systems includes 107 full stepbystep solutions. This textbook survival guide was created for the textbook: Precalculus, edition: 7.

Acute triangle
A triangle in which all angles measure less than 90°

Algebraic expression
A combination of variables and constants involving addition, subtraction, multiplication, division, powers, and roots

Bearing
Measure of the clockwise angle that the line of travel makes with due north

Constant
A letter or symbol that stands for a specific number,

Continuous function
A function that is continuous on its entire domain

Dependent variable
Variable representing the range value of a function (usually y)

Equivalent equations (inequalities)
Equations (inequalities) that have the same solutions.

First quartile
See Quartile.

Geometric sequence
A sequence {an}in which an = an1.r for every positive integer n ? 2. The nonzero number r is called the common ratio.

Initial side of an angle
See Angle.

Intercepted arc
Arc of a circle between the initial side and terminal side of a central angle.

Inverse function
The inverse relation of a onetoone function.

Inverse variation
See Power function.

Logarithmic reexpression of data
Transformation of a data set involving the natural logarithm: exponential regression, natural logarithmic regression, power regression

Origin
The number zero on a number line, or the point where the x and yaxes cross in the Cartesian coordinate system, or the point where the x, y, and zaxes cross in Cartesian threedimensional space

Orthogonal vectors
Two vectors u and v with u x v = 0.

Quartile
The first quartile is the median of the lower half of a set of data, the second quartile is the median, and the third quartile is the median of the upper half of the data.

Recursively defined sequence
A sequence defined by giving the first term (or the first few terms) along with a procedure for finding the subsequent terms.

Secant line of ƒ
A line joining two points of the graph of ƒ.

Sinusoid
A function that can be written in the form f(x) = a sin (b (x  h)) + k or f(x) = a cos (b(x  h)) + k. The number a is the amplitude, and the number h is the phase shift.