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

Questions about vector magnitudes and angles

  • htk
  • · Replies 3 ·
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3

Calculate Sum of Products (x,y,z)

  • tstuddud
  • · Replies 2 ·
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2

What does k indicate for y=e^(-kt)

  • brandy
  • · Replies 7 ·
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7

50 coin tosses, probability of 25 heads vs 3 heads

  • quantum13
  • · Replies 7 ·
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7

Equations of a Plane/Hyperplane

  • AngelofMusic
  • · Replies 3 ·
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3

Van Der Waals equation solving for V

  • George3
  • · Replies 2 ·
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2

Summing Geometric Progressions with a Common Ratio of √2/2

  • zebra1707
  • · Replies 3 ·
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3

Finding the Angle with Arctan: A Manual Approach

  • carlodelmundo
  • · Replies 6 ·
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6

Simplifying sin³θ + cos³θ / sinθ + cosθ and related expression

  • TrueStar
  • · Replies 7 ·
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7

What is the slope of the bisector of angle ABC?

  • um0123
  • · Replies 2 ·
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2

Can You Fit the Entire Encyclopaedia Britannica on a Pinhead?

  • CampRock
  • · Replies 1 ·
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1

How do I correctly solve this polynomial long division problem?

  • Kys91
  • · Replies 3 ·
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3

Simplification of Log/Exponent Expression

  • moo5003
  • · Replies 1 ·
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1

Write The Given Expression in Algebraic Form

  • Centurion1
  • · Replies 4 ·
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4
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1

Creating a Real and Negative Function from the Square Root Equation

  • redtree
  • · Replies 13 ·
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13
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5

Factoring trinomials when the leading coefficient is not 1

  • gabrielh
  • · Replies 4 ·
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4

Basic math problems(not homework & not ,but would like help anyway)

  • leena19
  • · Replies 9 ·
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9

What is the Conversion Factor for Nautical Miles to Statute Miles?

  • TrueStar
  • · Replies 5 ·
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5

Find angle BDC, side AD and total area of quadrilateral ABCD

  • Tommzar
  • · Replies 5 ·
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5

Prove: Square Can Be Partitioned into n Smaller Squares for n > 14

  • CoachZ
  • · Replies 1 ·
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1

Trigonometry question, Finding coordinates of 3rd point

  • yopy
  • · Replies 2 ·
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2

Solving 31.2^(1/5) ≈ 197/99 with Binomial Expansion

  • crays
  • · Replies 6 ·
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6

Composing disjoint cycles without converting to 2-row permutations

  • Charles007
  • · Replies 1 ·
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1

D/dx in Spherical Coordinates: What am I Missing?

  • raul_l
  • · Replies 6 ·
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6

Prove Inequality: (ab+cd)^2 ≤ (a^2+c^2)(b^2+d^2)

  • rbzima
  • · Replies 4 ·
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4

Who stole the cookies from the cookie jar?

  • sweedeljoseph
  • · Replies 11 ·
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11

How to use the chain rule to differentiate 1/(4x-7)

  • TheAkuma
  • · Replies 7 ·
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7

Solving Nicaragua's 1988 Inflation Problem

  • alyplayford
  • · Replies 4 ·
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4

Arithmetic Progression + System of equations + binomial

  • Paulo Serrano
  • · Replies 13 ·
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13

Geometric Progression Question

  • crays
  • · Replies 6 ·
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6

Linear Programming Homework: Find Range of x & y, Max y-2x

  • songoku
  • · Replies 12 ·
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12

Trigonmetry Functions (radian circles)

  • phat2107
  • · Replies 7 ·
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7

Finding y in y = sin 2x + cos 3x with radians

  • Venito
  • · Replies 4 ·
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4

Quadratic Equantions and Inequalities

  • crays
  • · Replies 24 ·
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24
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1

Prove that the flange of a train wheel moves backwards in respect to the ground

  • porschedude
  • · Replies 6 ·
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6

How to Resolve a Vector into Parallel and Perpendicular Components?

  • songoku
  • · Replies 7 ·
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7

Solving a Math Problem on Income with 5% Increases over 25 Years

  • darkmagic
  • · Replies 9 ·
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9

How do you find the asymptotes of a function?

  • Michael17
  • · Replies 6 ·
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6

Rationalizing Complex Denominators for Scientists

  • cragar
  • · Replies 7 ·
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7

Circle geometry in physics admissions test

  • Chewy0087
  • · Replies 14 ·
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14

Ambiguous Problem involving Common Tangents to circles

  • suhasm
  • · Replies 3 ·
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3
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3

Compute Arccot of (-Sqr. Root(3)/3)

  • Centurion1
  • · Replies 24 ·
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24

Probability that a two is thrown

  • Chewy0087
  • · Replies 4 ·
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4

Easy Trig question that is ridiculously hard

  • sponsoredwalk
  • · Replies 7 ·
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7

Distance from vertex to focus in a parabola

  • John 123
  • · Replies 3 ·
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3

How Do You Calculate the Depth When a Parabolic Channel is Half Full?

  • jrand26
  • · Replies 5 ·
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5

Prove Irrationality of \log_{10}(2)

  • jgens
  • · Replies 5 ·
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5

Finding inverse of (x + 2)/(3x + 5)

  • GHealy
  • · Replies 6 ·
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6

What Is the Minimal Value of the Summation Involving Absolute Values?

  • icystrike
  • · Replies 3 ·
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3

Solving Parametric Equations to Show Line Passing Through 2 Points

  • John O' Meara
  • · Replies 5 ·
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5

Proving Quadrilateral Diagonal as Circle Diameter

  • mr.physics
  • · Replies 1 ·
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1

Linear programming problem with two light fixture models

  • Superstring
  • · Replies 3 ·
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3

Rewriting an Equation with Polar Substitutions

  • Centurion1
  • · Replies 6 ·
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6

Rate of flow from a bucket with a hole in it.

  • jprockbelly
  • · Replies 3 ·
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3

How Do You Convert a Polar Conic Equation to Cartesian Coordinates?

  • Knissp
  • · Replies 1 ·
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1

Can You Simplify this Trig Identity?

  • sean trom
  • · Replies 8 ·
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8

Creating a function based on data

  • JFonseka
  • · Replies 2 ·
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2

Find Cos2A: sinA=-1/3, pi<A<3pi/2

  • Centurion1
  • · Replies 3 ·
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3

Trigonometric Identities Proof

  • whitehorsey
  • · Replies 2 ·
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2

Finding the function of a Parabola

  • whitehorsey
  • · Replies 3 ·
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3

How can -x^3 + 27 be factored?

  • Draggu
  • · Replies 5 ·
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5

Proving 1/72 Not the Sum of Squares of Two Positive Integers

  • icystrike
  • · Replies 10 ·
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10

Solving y' in 2x+2xy'+2y+3y2y'

  • Centurion1
  • · Replies 8 ·
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8

Logarithm with Different Base: Solving for x/y

  • songoku
  • · Replies 2 ·
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2

Composition of functions and being defined thru range and domain

  • jaejoon89
  • · Replies 1 ·
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1

Solving simultaneous trigonometric equation

  • amibhatta
  • · Replies 5 ·
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5

Proving that T=T* for a Normal Linear Transformation

  • LeifEricson
  • · Replies 3 ·
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3

Finding the Minimum Number of Sides for a Rotating Regular Polygon

  • icystrike
  • · Replies 4 ·
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4
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8

Finding the domain of an equation

  • Centurion1
  • · Replies 18 ·
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18

I just cant solve for this unknow, could anyone guild me?

  • kritbordin
  • · Replies 4 ·
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4

Predator-prey model with difference equations for foxes and rabbits

  • roam
  • · Replies 3 ·
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3

Sport physics EEI project ideas for year 11

  • Quwackers
  • · Replies 2 ·
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2

Uniqueness of Even and Odd Function Decomposition

  • avec_holl
  • · Replies 21 ·
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21

Is this induction proof of the remainder theorem valid?

  • avec_holl
  • · Replies 2 ·
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2

Finding Coordinates with same gradient

  • TheAkuma
  • · Replies 10 ·
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10

Show two determinants are equal without evaluating them

  • iamthegelo
  • · Replies 2 ·
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2

Proving f(x)>0 if x>0 with Function Proof

  • jgens
  • · Replies 2 ·
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2

Find f(7) from f(1)=8 and f(35)=e^e

  • icystrike
  • · Replies 16 ·
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16

What are the formulas for calculating parallelogram area?

  • TheAkuma
  • · Replies 16 ·
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16

Checking if binary relations are reflexive, antisymmetric, transitive

  • Matty R
  • · Replies 25 ·
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25

Odd and even functions, recangular coordinates

  • Tiome_nguyen
  • · Replies 2 ·
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2

Derive the Pythagoream Identity

  • mathismyworld
  • · Replies 7 ·
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7

Furthest distance traveled with tire rotation?

  • Mentallic
  • · Replies 9 ·
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9

How to derive pythagorean identity?

  • colormyworld
  • · Replies 5 ·
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5

Proving the Invertibility of Composed One-to-One Functions

  • John O' Meara
  • · Replies 8 ·
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8

Simple Ratios problem from old SAT book

  • Ognerok
  • · Replies 2 ·
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2

Determinants in quadratics and the range of y

  • nobahar
  • · Replies 5 ·
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5

Converting velocity data to mass vs acceleration graph

  • doc.madani
  • · Replies 3 ·
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3

What Do Equations Expressing Higher Dimensions Look Like?

  • schlynn
  • · Replies 1 ·
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1

Odd ball Poly-Nominal Question

  • Venito
  • · Replies 3 ·
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3

Finding endpoints of a line segment along a 3D vector

  • fenpark15
  • · Replies 2 ·
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2

Maxima question needs checking

  • JakePearson
  • · Replies 1 ·
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1
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9

Linear velocity of a rotating body

  • rugapark
  • · Replies 2 ·
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2

When to take conjugates for complex vector magnitude?

  • fredrick08
  • · Replies 10 ·
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10