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# Solutions for Chapter 10.7: SYSTEMS OF INEQUALITIES ## Full solutions for Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign) | 4th Edition

ISBN: 9780534402303 Solutions for Chapter 10.7: SYSTEMS OF INEQUALITIES

Solutions for Chapter 10.7
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##### ISBN: 9780534402303

This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign), edition: 4. Since 41 problems in chapter 10.7: SYSTEMS OF INEQUALITIES have been answered, more than 25516 students have viewed full step-by-step solutions from this chapter. Chapter 10.7: SYSTEMS OF INEQUALITIES includes 41 full step-by-step solutions. Precalculus: With Unit Circle Trigonometry (with Interactive Video Skillbuilder CD-ROM) (Available 2010 Titles Enhanced Web Assign) was written by and is associated to the ISBN: 9780534402303.

Key Calculus Terms and definitions covered in this textbook

P(A or B) = P(A) + P(B) - P(A and B). If A and B are mutually exclusive events, then P(A or B) = P(A) + P(B)

• Argument of a complex number

The argument of a + bi is the direction angle of the vector {a,b}.

• Base

See Exponential function, Logarithmic function, nth power of a.

• Boxplot (or box-and-whisker plot)

A graph that displays a five-number summary

• Categorical variable

In statistics, a nonnumerical variable such as gender or hair color. Numerical variables like zip codes, in which the numbers have no quantitative significance, are also considered to be categorical.

• Coefficient of determination

The number r2 or R2 that measures how well a regression curve fits the data

• Coordinate(s) of a point

The number associated with a point on a number line, or the ordered pair associated with a point in the Cartesian coordinate plane, or the ordered triple associated with a point in the Cartesian three-dimensional space

• Direct variation

See Power function.

• Expanded form of a series

A series written explicitly as a sum of terms (not in summation notation).

• Horizontal asymptote

The line is a horizontal asymptote of the graph of a function ƒ if lim x:- q ƒ(x) = or lim x: q ƒ(x) = b

• Order of an m x n matrix

The order of an m x n matrix is m x n.

• Pythagorean identities

sin2 u + cos2 u = 1, 1 + tan2 u = sec2 u, and 1 + cot2 u = csc2 u

• Reflexive property of equality

a = a

• Right angle

A 90° angle.

• Secant

The function y = sec x.

• Speed

The magnitude of the velocity vector, given by distance/time.

• Standard form: equation of a circle

(x - h)2 + (y - k2) = r 2

• Sum of an infinite geometric series

Sn = a 1 - r , |r| 6 1

• Upper bound for ƒ

Any number B for which ƒ(x) ? B for all x in the domain of ƒ.

• y-axis

Usually the vertical coordinate line in a Cartesian coordinate system with positive direction up, pp. 12, 629.

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