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# Solutions for Chapter 4.4: Precalculus 5th Edition

## Full solutions for Precalculus | 5th Edition

ISBN: 9780321837349

Solutions for Chapter 4.4

Solutions for Chapter 4.4
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##### ISBN: 9780321837349

Precalculus was written by and is associated to the ISBN: 9780321837349. This textbook survival guide was created for the textbook: Precalculus, edition: 5. Since 23 problems in chapter 4.4 have been answered, more than 10998 students have viewed full step-by-step solutions from this chapter. This expansive textbook survival guide covers the following chapters and their solutions. Chapter 4.4 includes 23 full step-by-step solutions.

Key Calculus Terms and definitions covered in this textbook
• Annual percentage rate (APR)

The annual interest rate

• Average rate of change of ƒ over [a, b]

The number ƒ(b) - ƒ(a) b - a, provided a ? b.

• 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 z-components of the vector, respectively)

• Conic section (or conic)

A curve obtained by intersecting a double-napped right circular cone with a plane

• Descriptive statistics

The gathering and processing of numerical information

• Ellipsoid of revolution

A surface generated by rotating an ellipse about its major axis

• Intercept

Point where a curve crosses the x-, y-, or z-axis in a graph.

• Length of a vector

See Magnitude of a vector.

• Linear regression

A procedure for finding the straight line that is the best fit for the data

• Local maximum

A value ƒ(c) is a local maximum of ƒ if there is an open interval I containing c such that ƒ(x) < ƒ(c) for all values of x in I

• Mean (of a set of data)

The sum of all the data divided by the total number of items

• Natural logarithm

A logarithm with base e.

• Nautical mile

Length of 1 minute of arc along the Earth’s equator.

• Number line graph of a linear inequality

The graph of the solutions of a linear inequality (in x) on a number line

• Parallelogram representation of vector addition

Geometric representation of vector addition using the parallelogram determined by the position vectors.

• Plane in Cartesian space

The graph of Ax + By + Cz + D = 0, where A, B, and C are not all zero.

• Pseudo-random numbers

Computer-generated numbers that can be used to approximate true randomness in scientific studies. Since they depend on iterative computer algorithms, they are not truly random

• Rational numbers

Numbers that can be written as a/b, where a and b are integers, and b ? 0.

• Reduced row echelon form

A matrix in row echelon form with every column that has a leading 1 having 0’s in all other positions.

• Vertex of a cone

See Right circular cone.

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