 P.9.151: In Exercises 151153, express each interval in setbuilder notation ...
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 P.9.156: In Exercises 154157, use graphs to fi nd each set1, 3) (0, 4)
 P.9.157: In Exercises 154157, use graphs to fi nd each set[1, 3) (0, 4)
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 P.9.168: A car rental agency rents a certain car for $40 per day with unlimi...
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Solutions for Chapter P.9: Precalculus 5th Edition
Full solutions for Precalculus  5th Edition
ISBN: 9780321837349
Solutions for Chapter P.9
Get Full SolutionsThis textbook survival guide was created for the textbook: Precalculus, edition: 5. This expansive textbook survival guide covers the following chapters and their solutions. Chapter P.9 includes 19 full stepbystep solutions. Precalculus was written by and is associated to the ISBN: 9780321837349. Since 19 problems in chapter P.9 have been answered, more than 11904 students have viewed full stepbystep solutions from this chapter.

Commutative properties
a + b = b + a ab = ba

Component form of a vector
If a vector’s representative in standard position has a terminal point (a,b) (or (a, b, c)) , then (a,b) (or (a, b, c)) is the component form of the vector, and a and b are the horizontal and vertical components of the vector (or a, b, and c are the x, y, and zcomponents of the vector, respectively)

Convenience sample
A sample that sacrifices randomness for convenience

Cosine
The function y = cos x

Equal complex numbers
Complex numbers whose real parts are equal and whose imaginary parts are equal.

Even function
A function whose graph is symmetric about the yaxis for all x in the domain of ƒ.

Finite series
Sum of a finite number of terms.

Identity properties
a + 0 = a, a ? 1 = a

Increasing on an interval
A function ƒ is increasing on an interval I if, for any two points in I, a positive change in x results in a positive change in.

Integers
The numbers . . ., 3, 2, 1, 0,1,2,...2

Inverse of a matrix
The inverse of a square matrix A, if it exists, is a matrix B, such that AB = BA = I , where I is an identity matrix.

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

Logistic growth function
A model of population growth: ƒ1x2 = c 1 + a # bx or ƒ1x2 = c1 + aekx, where a, b, c, and k are positive with b < 1. c is the limit to growth

NDER ƒ(a)
See Numerical derivative of ƒ at x = a.

Permutation
An arrangement of elements of a set, in which order is important.

Probability simulation
A numerical simulation of a probability experiment in which assigned numbers appear with the same probabilities as the outcomes of the experiment.

Real zeros
Zeros of a function that are real numbers.

Second quartile
See Quartile.

System
A set of equations or inequalities.

xyplane
The points x, y, 0 in Cartesian space.