 3.87: Use the exponential decay model, A = A0ekt , to solve this exercise...
 3.88: The function f(t) = 500,000 1 + 2499e0.92t models the number of pe...
 3.89: Use Newtons Law of Cooling, T = C + (T0  C)ekt , to solve this exe...
 3.90: Exercises 9092 present data in the form of tables. For each data se...
 3.91: Exercises 9092 present data in the form of tables. For each data se...
 3.92: Exercises 9092 present data in the form of tables. For each data se...
 3.93: In Exercises 9394, rewrite the equation in terms of base e. Express...
 3.94: In Exercises 9394, rewrite the equation in terms of base e. Express...
 3.95: The fi gure shows world population projections through the year 215...
Solutions for Chapter 3: Precalculus 5th Edition
Full solutions for Precalculus  5th Edition
ISBN: 9780321837349
Solutions for Chapter 3
Get Full SolutionsPrecalculus was written by and is associated to the ISBN: 9780321837349. Since 9 problems in chapter 3 have been answered, more than 11839 students have viewed full stepbystep solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions. This textbook survival guide was created for the textbook: Precalculus, edition: 5. Chapter 3 includes 9 full stepbystep solutions.

Absolute value of a vector
See Magnitude of a vector.

Additive inverse of a complex number
The opposite of a + bi, or a  bi

Angle
Union of two rays with a common endpoint (the vertex). The beginning ray (the initial side) can be rotated about its endpoint to obtain the final position (the terminal side)

Constant function (on an interval)
ƒ(x 1) = ƒ(x 2) x for any x1 and x2 (in the interval)

Eccentricity
A nonnegative number that specifies how offcenter the focus of a conic is

End behavior
The behavior of a graph of a function as.

Integrable over [a, b] Lba
ƒ1x2 dx exists.

Logarithm
An expression of the form logb x (see Logarithmic function)

Logistic regression
A procedure for fitting a logistic curve to a set of data

Minute
Angle measure equal to 1/60 of a degree.

Multiplication principle of counting
A principle used to find the number of ways an event can occur.

Multiplicative inverse of a matrix
See Inverse of a matrix

Principal nth root
If bn = a, then b is an nth root of a. If bn = a and a and b have the same sign, b is the principal nth root of a (see Radical), p. 508.

Probability distribution
The collection of probabilities of outcomes in a sample space assigned by a probability function.

Probability function
A function P that assigns a real number to each outcome O in a sample space satisfying: 0 … P1O2 … 1, P12 = 0, and the sum of the probabilities of all outcomes is 1.

Real part of a complex number
See Complex number.

Series
A finite or infinite sum of terms.

Slope
Ratio change in y/change in x

Tangent
The function y = tan x

Vertical line test
A test for determining whether a graph is a function.