Precalculus Mathematics Homework Help Forum

Free pre-calculus mathematics homework help from qualified mentors. Math courses prior to calculus homework. Please use the template when requesting help and show your work.

Threads

Solving Inequality with x=2y - Answers & Theories

  • Mindscrape
  • · Replies 4 ·
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4

Equation for the tangent of a circle

  • snshusat161
  • · Replies 6 ·
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6

Prove square root of 3 is irrational

  • kolley
  • · Replies 9 ·
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9

Determine the probability that a random variable

  • Sirsh
  • · Replies 2 ·
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2

Constructing two parallel planes in R3

  • mnm831
  • · Replies 2 ·
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2

Probability Estimation with NETICA: Help for Civil Engineering Student"

  • susan_poland
  • · Replies 3 ·
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3

Is cos(x - (pi/2)) equal to cos(x)tan(x)?

  • silversorrow
  • · Replies 1 ·
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1

What Is the Minor Value of n in the Newton Binomial Problem?

  • Taturana
  • · Replies 6 ·
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6

Where Did I Go Wrong with the Cosine Formula?

  • Gringo123
  • · Replies 2 ·
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2

Can Complex Function q(z) Be a Contraction Mapping?

  • complexnumber
  • · Replies 1 ·
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1

What Is the Probability of Exactly Two Matching Cards in Envelopes?

  • PhysViti
  • · Replies 1 ·
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1

Angle of Vectors a and b with Orthogonal Unit p and q

  • lorik
  • · Replies 8 ·
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8
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1

Probability of Producing High-Priced Miniature Mules from Breeding Stock

  • mossfan563
  • · Replies 1 ·
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1

Finding the Point of Intersection: A Simpler Approach

  • .hacker//Kazu
  • · Replies 5 ·
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5

Solve cos2xsinx=1: Simplifying and Finding X

  • CutiePieYum
  • · Replies 4 ·
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4

How do I find the area of the blue section in this trig circle problem?

  • onandon
  • · Replies 2 ·
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2

Mean Score of Female Students in Class of 30: 78

  • coreyB
  • · Replies 3 ·
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3

Solving C: Recursive Rule for Sequence 2, 6, 8, 14, 22, 36

  • recoil33
  • · Replies 2 ·
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2

Trig Problem - Way Overthinking This

  • apt403
  • · Replies 12 ·
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12

Square Root 3/2 and 0.8660: Explained

  • lorik
  • · Replies 7 ·
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7

Help with factor large numbers

  • Poker-face
  • · Replies 6 ·
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6

Find explicit function or functions corresponding from implicit

  • MrNeWBiE
  • · Replies 8 ·
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8

Infinite limit as X tends to infinity

  • IdanH14
  • · Replies 5 ·
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5

Find the compositions of these functions?

  • thereddevils
  • · Replies 7 ·
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7

How do i read a frequency graph?

  • Sirsh
  • · Replies 4 ·
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4

Proving Permutations for Natural Numbers n and r: A Comprehensive Guide

  • LampMan
  • · Replies 3 ·
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3
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1

Solving a polynomial with complex properties

  • moocav
  • · Replies 4 ·
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4

Proof or counterexaample of Floor 7 Ceiling

  • nastygoalie89
  • · Replies 2 ·
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2

Intermediate Algebra Factoring

  • Poker-face
  • · Replies 9 ·
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9
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1

Please help me to find the probability of this question.

  • hpt001
  • · Replies 2 ·
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2

Solve PreCalc Question: Population Growth in 10 Years

  • GreenPrint
  • · Replies 1 ·
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1

Quadratics with inequalities from spivak's calc

  • johnnyies
  • · Replies 2 ·
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2

Finding the basis for a set of polynomials (linear algebra)

  • RossH
  • · Replies 1 ·
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1

Find equation of parabola with focus and directrix

  • LeadyKnight
  • · Replies 1 ·
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1

Probability Question: No Couples in Randomly Split Groups of Four Couples

  • mistermath
  • · Replies 4 ·
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4

Probability of Getting 40/40 on MCQ Test by Guessing

  • mohdakram
  • · Replies 1 ·
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1

Mixing Saline Solutions for Desired Concentration

  • findley
  • · Replies 1 ·
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1

Expressing 2*4*6*8*10*etc. mathematically

  • Baou
  • · Replies 4 ·
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4

Simplifying Sin[3θ] to Simplifying Trigonometric Expressions

  • Confusingmeh
  • · Replies 1 ·
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1

Help with negative binomial distributions

  • mintsharpie
  • · Replies 1 ·
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1

How would you simplify [tex]a(y-b/3a)^3[/tex]

  • Strafespar
  • · Replies 1 ·
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1

Cubic Formula: Step-by-Step Solution for Finding x

  • Strafespar
  • · Replies 2 ·
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2

Calculating R Square of an Exponential Function

  • prof.DK
  • · Replies 4 ·
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4

Permutation and combination question

  • gaobo9109
  • · Replies 1 ·
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1

A simple Linear Algebra question that seems so hard

  • qwerty11
  • · Replies 4 ·
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4

Find the Factor for Change in y Due to x & z

  • kee23
  • · Replies 11 ·
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11

Double variable equation- how to solve?

  • BR24
  • · Replies 6 ·
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6

Scalar Plane Equation for Vectors AB and Point P | 3D Cartesian Space

  • speedycaster
  • · Replies 3 ·
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3

Find x and y in the following trig problem

  • Vinny Harlock
  • · Replies 1 ·
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1

Calculate Initial Acceleration Needed to Throw a Ball from Point A to B

  • Bosduif
  • · Replies 5 ·
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5

How to Find the Center and Radius of a Circle: Circle Equation Help

  • MrNeWBiE
  • · Replies 16 ·
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16

Unique Arrangements of n As and Bs in a Circle | Combinatorics Homework

  • simpleton
  • · Replies 10 ·
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10

P is not a subspace of R3. Why?

  • dcramps
  • · Replies 8 ·
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8

Solving Arc Tangent Squared: tan(2x) - 3cot(2x) = 0

  • asd1249jf
  • · Replies 3 ·
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3

Addition of exponents disconnect

  • dymand68
  • · Replies 5 ·
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5

Can You Solve These Challenging Algebra and Geometry Problems?

  • ScienceNewb
  • · Replies 12 ·
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12

Solving the Direction of an Airplane Flying in the Wind

  • Lazz72
  • · Replies 1 ·
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1

Probability question - Bayes' Theorem - 4 Balls, 2 white, P(all white) = ?

  • dharavsolanki
  • · Replies 4 ·
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4

Finding x-intercept of cubic functions? / Factoring cubic functions

  • liquidwater
  • · Replies 6 ·
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6
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2
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2

Can someone help me simplify this ellipse equation?

  • iamsmooth
  • · Replies 1 ·
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1

Solving Infinite Sums/Series: Kid Tutoring Homework

  • muso07
  • · Replies 5 ·
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5

Help with Logarithms: Expressions in Terms of r, s, & t

  • terps
  • · Replies 4 ·
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4

Solve Parabola Equation: (10,0) ((13,27) (16,0)

  • thedarkhawk10
  • · Replies 1 ·
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1

Understanding Vector Spaces: Axioms and Operations

  • dcramps
  • · Replies 5 ·
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5
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2

What is the Solution for W, X, Y, and Z?

  • r-soy
  • · Replies 1 ·
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1

Finding intervals of trig functions

  • steve snash
  • · Replies 15 ·
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15

Solving equation involving trigonometry and complex numbers

  • thepopasmurf
  • · Replies 2 ·
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2

Probability/Statistics Question

  • srfriggen
  • · Replies 6 ·
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6

F(x)=x+(5/x), how do i find f^-1(x)?

  • Champdx
  • · Replies 1 ·
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1

Function & Domain - Math Homework

  • MrNeWBiE
  • · Replies 17 ·
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17

Using Euler's Formula to Evaluate Complex Numbers in Rectangular Form

  • ezperkins
  • · Replies 3 ·
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3

Finding Inverse Functions: f(22)=9, f^-1(13)=7 | 1-1 Functions

  • steve snash
  • · Replies 4 ·
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4

Proving the Multiplication of Even Integers is a Multiple of 4: A Simple Proof

  • nastygoalie89
  • · Replies 1 ·
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1

Algebraic Manipulation: Solving Complex Equations

  • Schniz2
  • · Replies 2 ·
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2

Converting Kcal/day to umol/g/h

  • kathyt.25
  • · Replies 3 ·
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3

Calculating Sum of Series: 1, (4-a)x, (7-a^2)x^2...

  • Procrastinate
  • · Replies 1 ·
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1

Inverse Function: Finding x for y in f(x)

  • Sweet_GirL
  • · Replies 1 ·
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1

What exactly does the period tell you in a trig graph?

  • mathkillsme
  • · Replies 1 ·
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1

Solve for Alpha(a): 3 Equations with Unknowns in Matrix - Need Help!

  • Martinuk
  • · Replies 1 ·
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1

To derive a linearized form of following equations

  • samieee
  • · Replies 3 ·
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3

Vector Integration Prove: Int over Closed S=0

  • aj06
  • · Replies 1 ·
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1

How to find out the area of a shape

  • Rohan11221
  • · Replies 2 ·
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2

A question from the Russian/Soviet Math Olympiad

  • slayer16
  • · Replies 1 ·
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1
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5

Range of a Function: Find h(x)

  • Codester09
  • · Replies 3 ·
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3

Why Can't I Derive r/R as √3 - 1 in This Chemistry Problem?

  • Puchinita5
  • · Replies 5 ·
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5

Probability function of a discrete random variable problem

  • stevecallaway
  • · Replies 1 ·
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1

How to Deduce the Coefficient of x^n in the Expansion of (x+3)(1+2x)^(-2)?

  • elitewarr
  • · Replies 1 ·
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1

Volume of a solid limited by two paraboloids

  • aicort
  • · Replies 5 ·
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5

What Causes Discontinuity in the Function 3/(x^2+x-6)?

  • FlO-rida
  • · Replies 18 ·
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18

Solving Linear Equations to Mastering Homework Problems

  • nathan17
  • · Replies 11 ·
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11

Finding the exact value for period in radians

  • steve snash
  • · Replies 2 ·
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2
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7

How to Simplify a Tricky Fraction?

  • math2010
  • · Replies 6 ·
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6