Precalculus 4th Edition - Solutions by Chapter

The annual interest rate

A rectangular graphical display of categorical data.

See Compound fraction.

The gathering and processing of numerical information

A blind experiment in which the researcher gathering data from the subjects is not told which subjects have received which treatment

The following three row operations: Multiply all elements of a row by a nonzero constant; interchange two rows; and add a multiple of one row to another row

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

Reciprocal of the period of a sinusoid.

A visible representation of a numerical or algebraic model.

See Arrow.

Zeros of a function that are irrational numbers.

sin A a = sin B b = sin C c

limx:aƒ1x2 = L means that ƒ(x) gets arbitrarily close to L as x gets arbitrarily close (but not equal) to a

A Riemann sum approximation of the area under a curve ƒ(x) from x = a to x = b using x1 as the left-hand endpoint of each subinterval

A function that can be written in the form ƒ(x) = ax 2 + bx + c, where a, b, and c are real numbers, and a ? 0.

A procedure for fitting a quadratic function to a set of data.

A positive number written as c x 10m, where 1 ? c < 10 and m is an integer.

The graph of the polar curve.

A number that measures a quantitative variable for a sample from a population.

A procedure used to divide a polynomial by a linear factor, x - a