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Textbooks / Calculus / Precalculus 7

# Precalculus 7th Edition - Solutions by Chapter

## Full solutions for Precalculus | 7th Edition

ISBN: 9780618643448

Precalculus | 7th Edition - Solutions by Chapter

Solutions by Chapter
4 5 0 249 Reviews
##### ISBN: 9780618643448

This textbook survival guide was created for the textbook: Precalculus, edition: 7. Precalculus was written by and is associated to the ISBN: 9780618643448. The full step-by-step solution to problem in Precalculus were answered by , our top Calculus solution expert on 03/15/18, 04:43PM. Since problems from 85 chapters in Precalculus have been answered, more than 56341 students have viewed full step-by-step answer. This expansive textbook survival guide covers the following chapters: 85.

Key Calculus Terms and definitions covered in this textbook
• Acceleration due to gravity

g ? 32 ft/sec2 ? 9.8 m/sec

• Angle between vectors

The angle formed by two nonzero vectors sharing a common initial point

• Blind experiment

An experiment in which subjects do not know if they have been given an active treatment or a placebo

• Commutative properties

a + b = b + a ab = ba

• Discriminant

For the equation ax 2 + bx + c, the expression b2 - 4ac; for the equation Ax2 + Bxy + Cy2 + Dx + Ey + F = 0, the expression B2 - 4AC

• Focal length of a parabola

The directed distance from the vertex to the focus.

• Inferential statistics

Using the science of statistics to make inferences about the parameters in a population from a sample.

• Line graph

A graph of data in which consecutive data points are connected by line segments

• Logarithmic re-expression of data

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

• LRAM

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

• Measure of center

A measure of the typical, middle, or average value for a data set

• Midpoint (on a number line)

For the line segment with endpoints a and b, a + b2

• Multiplicity

The multiplicity of a zero c of a polynomial ƒ(x) of degree n > 0 is the number of times the factor (x - c) (x - z 2) Á (x - z n)

• Partial fraction decomposition

See Partial fractions.

• Polar distance formula

The distance between the points with polar coordinates (r1, ?1 ) and (r2, ?2 ) = 2r 12 + r 22 - 2r1r2 cos 1?1 - ?22

• Pole

See Polar coordinate system.

• Product rule of logarithms

ogb 1RS2 = logb R + logb S, R > 0, S > 0,

• Replication

The principle of experimental design that minimizes the effects of chance variation by repeating the experiment multiple times.

• Root of a number

See Principal nth root.

• Sample survey

A process for gathering data from a subset of a population, usually through direct questioning.