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

Calculate Baseboard & Carpet Needs for a 3.5m x 6.526m Room

  • Siraaj
  • · Replies 2 ·
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2

Solve Half-Life Problem: 226Ra, 1620 yrs, 1.5g

  • audax
  • · Replies 2 ·
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2

Gaussian Elimination Help: Solving Equations with Absentee Notes

  • Squall
  • · Replies 2 ·
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2

How do I integrate an exponential with a higher power?

  • Brewer
  • · Replies 3 ·
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3

Evaluating Polynomials with Horner's Method]

  • hyderman
  • · Replies 8 ·
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8

Find the remainder of the equation

  • parsifal
  • · Replies 1 ·
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1

.Solve the Algebra 1 Puzzle: Two Men and Their Ages

  • kai89
  • · Replies 9 ·
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9

Inverse of a multivalued function

  • Joey_Joe_Jojo
  • · Replies 5 ·
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5

Divisibility by 9: Solving x+y+z Problems

  • sh86
  • · Replies 6 ·
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6

Permutation/combination problems

  • starsuck
  • · Replies 6 ·
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6

What is the area of the shaded region in terms of pi?

  • little_ein
  • · Replies 3 ·
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3

Proving a Single Solution for an Equation between 0 and pi/2

  • turdferguson
  • · Replies 5 ·
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5

Did I get it wrong? (transformation problem)

  • dontdisturbmycircles
  • · Replies 3 ·
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3

Solve Log Question: Find Cube Root of 25 in Base 5

  • gabby989062
  • · Replies 1 ·
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1

Solving the Graph of Equation (y^2)=a(x^2): True Statement?

  • ritwik06
  • · Replies 13 ·
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13

Finding the Average of 3-Digit Numbers

  • Ja4Coltrane
  • · Replies 1 ·
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1

What is the correct way to find the x'root'9^12?

  • disregardthat
  • · Replies 9 ·
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9

Simplify and Solve Radical and Square Equations - Homework Help

  • littlefirefly
  • · Replies 10 ·
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10

Find Min/Max/Inflection Point for f(x)=3x^5-10x^3+1

  • Harmony
  • · Replies 3 ·
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3

Expand (w + x((2t)/T) + y((2t)/T)^2 + z((2t)/T)^3)^2 - Help Needed

  • ashkash
  • · Replies 10 ·
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10

Expand (1-6x)^4 (1+2x)^7 - Solve Binomial Expansion

  • Fly_High
  • · Replies 1 ·
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1

Simple Transformations Questions

  • The Matador
  • · Replies 2 ·
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2

How Does Trigonometry Relate Voltage Levels in Transmission Lines?

  • John O' Meara
  • · Replies 4 ·
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4

Transformations of functions help

  • Trail_Builder
  • · Replies 3 ·
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3

Math Help: Understanding Sinusoids

  • Mona
  • · Replies 5 ·
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5

Finding Pathways from A to B: Strategies for Test Prep

  • dontdisturbmycircles
  • · Replies 2 ·
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2

How do I rearrange this equation involving trig functions to solve for x?

  • Aristodol
  • · Replies 1 ·
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1

Probability color ball problem

  • Trail_Builder
  • · Replies 12 ·
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12

Prove Parallelogram ABCD: Triangle APD = ABP + DCP

  • jtf2eh
  • · Replies 1 ·
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1

Help with Piecewise function, i had a bronchitis

  • ThePook
  • · Replies 3 ·
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3

How Do You Calculate Specific Points in a Triangle Using Vectors?

  • bjgawp
  • · Replies 1 ·
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1

How Do You Calculate the Cardinality of a Special Set?

  • haki
  • · Replies 1 ·
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1

Stats151: Graph & Describe Guinea Pig Survival Time Distribution

  • loadsy
  • · Replies 8 ·
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8

Probability Density Function, prove it

  • randy27
  • · Replies 1 ·
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1

Find slope of 2 perpendicular lines

  • phoenix20_06
  • · Replies 11 ·
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11

Proving (a+b+c)^3=a^3+b^3+c^3 Leads to (a+b+c)^5=a^5+b^5+c^5

  • ashrafmod
  • · Replies 4 ·
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4

What is the Value of X in a Linear System with a Given Equation?

  • caprija
  • · Replies 2 ·
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2

What is the Maximum Temperature for a Given Heat Capacity Equation?

  • jrevill
  • · Replies 2 ·
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2

Question about a trivial proof

  • mindCrime
  • · Replies 3 ·
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3

Simplify and Solve Trig Equation

  • Gib Z
  • · Replies 8 ·
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8

Finding the equation of an ellipse from foci and directrices

  • kasse
  • · Replies 2 ·
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2

Finding the height of this triangle

  • sh86
  • · Replies 5 ·
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5

Complex numbers, matricies and Kirchoff's laws

  • Tone
  • · Replies 3 ·
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3

Trig 0 = 3[cos(35)*cos(A) - sin(35)*sin(A)] - cos(A)

  • Fresh4Christ
  • · Replies 7 ·
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7
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11

Nonneg vs. Postive real numbers

  • storygeek
  • · Replies 2 ·
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2

Augmented Matrix in Echelon Form - One Unique Solution?

  • L²Cc
  • · Replies 3 ·
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3

Arrange Formulas: Isolate Variable Easily

  • soulja101
  • · Replies 4 ·
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4

Coordinate Geometry: Proving Chord & Tangent of Rectangular Hyperbola

  • Harmony
  • · Replies 2 ·
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2

Math Question: Distance Between Supermarket & Smoothie Store

  • daniel4
  • · Replies 6 ·
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6

Solving for k in 3D Plane Intersection at 60 Degrees

  • kevykevy
  • · Replies 4 ·
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4

Problem, i went wrong somewhere

  • Trail_Builder
  • · Replies 3 ·
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3

Very dumb question please dont laugh at me

  • linux kid
  • · Replies 8 ·
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8

Is This Simplification of a Complex Fraction Correct?

  • Isolex
  • · Replies 10 ·
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10

Finding y Given ln|y| - ln|y-a| = b

  • snowJT
  • · Replies 7 ·
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7

Determining 3D Vector Basis with a,b,c Vectors

  • kevykevy
  • · Replies 9 ·
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9

Can the Right Bisectors of a Triangle Meet at a Common Point?

  • kevykevy
  • · Replies 3 ·
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3

What Is the Mechanism Behind the Fido Puzzle?

  • linux kid
  • · Replies 4 ·
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4

Issues with an exponential problem

  • Cmunro
  • · Replies 9 ·
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9

Geometric series/geometric progression

  • Elec68
  • · Replies 2 ·
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2

Log^2(x) and log(x)^2 are the same or not?

  • ddr
  • · Replies 6 ·
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6

Having trouble with this log equation `

  • Jeff Cook
  • · Replies 22 ·
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22

Exponents and exponential functions

  • carbz
  • · Replies 4 ·
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4

Solving Quadratic Problem: y=a(x^2)+bx+c

  • Cmunro
  • · Replies 3 ·
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3

Maximum Affordable Mortgage Calculation

  • physicsgal
  • · Replies 3 ·
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3

Finding the Smallest Positive Term in an Arithmetic Series (C1 Level)

  • CathyLou
  • · Replies 2 ·
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2
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4

Question about ratios, proportions and percents

  • AznBoi
  • · Replies 5 ·
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5

How Are Radical Expressions Applied in Professional Fields?

  • Mortalfiend
  • · Replies 1 ·
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1

Show that the centers of the circles passing through the points

  • Harmony
  • · Replies 2 ·
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2

Solving Cubic Equation: Positive Root Exists

  • littleHilbert
  • · Replies 5 ·
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5

Four digit number permutations

  • chaoseverlasting
  • · Replies 5 ·
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5

Proving Algebraic Equivalencies and Distributive Property in a Ring

  • acm
  • · Replies 1 ·
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1

Sketch Curves: y=5x^(3/4), y=-2x^(-3/2)

  • Harmony
  • · Replies 3 ·
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3

Write a compound inequality to describe "fresh gale" wind speeds."

  • GLprincess02
  • · Replies 2 ·
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2
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15

Probability sports store problem

  • dontdisturbmycircles
  • · Replies 13 ·
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13

Find the number of ways n different games can be divided

  • chaoseverlasting
  • · Replies 4 ·
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4

Compound Inequality: Acceptable Ages for US Air Force Academy

  • GLprincess02
  • · Replies 4 ·
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4

Real Value of x in Complex Equation?

  • Alec
  • · Replies 2 ·
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2

Finding the Value of k for No Solution in a System of Equations

  • GLprincess02
  • · Replies 7 ·
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7
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4
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5

Calculate Total Boat Trip Distance: 70° & 272° Directions

  • FrostScYthe
  • · Replies 2 ·
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2
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1

Calculating % of Students with C or C+ in Exam | Probability Question

  • Destrio
  • · Replies 1 ·
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1

Population proportion *statistics*

  • georgeh
  • · Replies 1 ·
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1

Fairly basic algebra question - but it's bugging me now

  • kel
  • · Replies 7 ·
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7

How Do You Factor the Expression 27x^9y^3 - 8z^6?

  • sn3
  • · Replies 10 ·
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10

What are the Intersection Points of a Circle and a Line?

  • pokemeharder
  • · Replies 3 ·
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3

Proving Ker(f) is a Subset of Ker(h) in Linear Algebra Problem 1

  • acm
  • · Replies 2 ·
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2

Solving Really Big Formula: Find ABCDEFGHJ

  • kappcity06
  • · Replies 10 ·
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10

Maximizing Garden Area with Algebra: Step-by-Step Solution

  • MM92
  • · Replies 9 ·
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9

Qualitative Stats question (central limit theorem)

  • habman_6
  • · Replies 2 ·
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2

Quick question on accuracy (statistics)

  • Elfrae
  • · Replies 4 ·
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4

One More Trig Identity Problem

  • DethRose
  • · Replies 14 ·
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14
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5

Solve Math Relation for V in Terms of Z and A

  • msimard8
  • · Replies 2 ·
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2

Net Gain in Roulette Betting - Expectation & Standard Deviation

  • habman_6
  • · Replies 3 ·
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3

Finding Intersection of Line and Circle: A Challenging Problem

  • pokemeharder
  • · Replies 27 ·
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27