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

Exponential function with 3 parameters?

  • zeion
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4

Find EQ of tangent line for y=sin x at x = 6*pi

  • VinnyCee
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1

[Logarithms]Kepler's third law of planetary motion

  • anonymous12
  • · Replies 2 ·
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2

Bounds on zeroes theorem? requires calc proof?

  • Curd
  • · Replies 10 ·
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10

How to find the f(x) (least square method)

  • mjmara
  • · Replies 3 ·
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3

How to Graph a Periodic Function with a Period of 2π?

  • bubokribuck
  • · Replies 5 ·
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5

I know the very basic principles of logs

  • lloydowen
  • · Replies 51 ·
2
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51

Straight Line Graphs -Plotting, Gradient, Intercept & Finding Equation

  • lloydowen
  • · Replies 16 ·
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16

Quadratic Equation (Check my Workings ?)

  • lloydowen
  • · Replies 3 ·
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3

Please can you help me transpose this problem?

  • acat
  • · Replies 8 ·
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8

Word problem, interested in the reasoning process

  • mindauggas
  • · Replies 11 ·
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11

Solving for t in x(t): 0.94 Answers Discrepancy

  • JustinLiang
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4

Particle Distance/Velocity - Natural Logarithms

  • Chase.
  • · Replies 4 ·
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4

We have that for a crystal the lattice parameters

  • Eduard1
  • · Replies 1 ·
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1

Solving trig equations using Addition formula

  • studentxlol
  • · Replies 3 ·
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3

Equation of a circle / polar coordinates

  • Marioqwe
  • · Replies 5 ·
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5

Power of set of choice functions

  • ben21
  • · Replies 7 ·
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7

How do I solve simultaneous equations with two variables?

  • lloydowen
  • · Replies 2 ·
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2

Solving trigomonetry equation for x

  • songoku
  • · Replies 10 ·
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10

Solving Simple Index Questions with Brackets and Fractions

  • lloydowen
  • · Replies 18 ·
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18

Expansion with Pascal Triangle

  • Icetray
  • · Replies 13 ·
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13

Rearranging Equation: C(x,t) for t

  • SMOF
  • · Replies 8 ·
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8

Understanding Even Functions and the Role of Exponential Functions

  • ZedCar
  • · Replies 3 ·
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3

Solve for x: 0.5y = e^-x | Intermediate Steps Explained

  • ZedCar
  • · Replies 5 ·
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5
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3

Solving Trigonometric Identities (A bit Hard)

  • cmhabs94
  • · Replies 2 ·
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2

How to find the maximum area of a triangle?

  • justindizzle
  • · Replies 11 ·
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11
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4

How do I simplify an expression with multiple terms and arctan?

  • beborche
  • · Replies 2 ·
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2

Calculating tan(arcsin(1/7)) using trigonometric equations

  • beborche
  • · Replies 5 ·
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5

Roots of Unity - is this correct?

  • Kaldanis
  • · Replies 1 ·
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1

Graphing Sin Functions: Calculator Tips and Tricks for y=sin(c(x-d))

  • trivk96
  • · Replies 2 ·
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2

Linear Algebra: Prove rank(A) <= rank(exp(A))

  • aznkid310
  • · Replies 2 ·
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2

Proving Angle WTU is Twice as Large as WOX with Circle Theorem

  • Bittersweet
  • · Replies 5 ·
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5

Why Does e Raised to the Natural Log of 2 Equal 2?

  • rudders93
  • · Replies 6 ·
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6

Inverse Function - algebra problem

  • ZedCar
  • · Replies 5 ·
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5

Finding intersection between exponential and inverse function

  • anonymous12
  • · Replies 1 ·
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1

Polynomial-related question (why does this work algebraically?)

  • lockem
  • · Replies 4 ·
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4
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3

Reversing digits, then adding and finding divisible integers of result.

  • VinnyCee
  • · Replies 9 ·
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9
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1

Inequality with Circle and Triangle in Euclidean Geometry

  • seniorhs9
  • · Replies 1 ·
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1

Probability Question (theoretical aid)

  • Centurion1
  • · Replies 18 ·
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18

Domain of g(t): All Real Numbers

  • Jimbo57
  • · Replies 4 ·
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4

Estimating Total Sales at a Home Party

  • ChrisBlack
  • · Replies 1 ·
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1

Linear Algebra Applications: Cryptography

  • aero_zeppelin
  • · Replies 8 ·
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8

Want to check the answer to this (Pythagoras)

  • zeion
  • · Replies 3 ·
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3

Write as a simple fraction in lowest terms

  • mindauggas
  • · Replies 5 ·
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5

Definition of a Restriction in Linear Algebra

  • JonoPUH
  • · Replies 1 ·
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1

Find all solutions of inverse sine (-1/2)

  • DryRun
  • · Replies 14 ·
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14

How to Solve cos2x - sinx = 1/2 for [0,2pi)?

  • ll Source ll
  • · Replies 8 ·
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8

Radicals and exponents question

  • physics kiddy
  • · Replies 1 ·
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1

Proving Quadrilateral PQRS is a Parallelogram

  • physics kiddy
  • · Replies 7 ·
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7

Proving the Property of Logarithms: Examples with Exponents

  • Nano-Passion
  • · Replies 3 ·
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3

What Is the Probability Ely Eats 16 Chocolates Without Picking a Rum One?

  • Centurion1
  • · Replies 6 ·
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6

How can the numerator of a rational expression with cube roots be simplified?

  • mindauggas
  • · Replies 2 ·
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2

Sum of Products of All Pairs of Natural Numbers

  • draotic
  • · Replies 9 ·
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9

How Do You Express the Number of Security PINs in Logarithmic Form?

  • BlackOut07
  • · Replies 1 ·
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1

Game show there are 10 contestants of which 6 are female.

  • AllenHe
  • · Replies 12 ·
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12

Geometric sequences; solving algebraically for exponents

  • trulyfalse
  • · Replies 2 ·
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2

Is ((2x)3^x)/(x+1) < 0 Solvable for x?

  • hedgefire7
  • · Replies 12 ·
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12

Can a Set of Four Vectors in ℝ³ Span the Space?

  • NewtonianAlch
  • · Replies 3 ·
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3

Drawing with trigonometric function

  • asd1249jf
  • · Replies 7 ·
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7

Solving for a in Binomial Expansion: Find Possible Values

  • thornluke
  • · Replies 6 ·
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6

Matrix representation for transformation

  • athrun200
  • · Replies 1 ·
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1

Finding the inverse of this function explicitly

  • Nano-Passion
  • · Replies 12 ·
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12

Summing Series (Sigma Notation)

  • I-need-help
  • · Replies 5 ·
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5

First term of an infinite geometric sequence

  • thornluke
  • · Replies 4 ·
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4

Solving Basic Equations: Tips & Tricks

  • cording12
  • · Replies 2 ·
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2

Solving sin(x)=x: Need Help with 9th Grade Qwiggle

  • hyurnat4
  • · Replies 7 ·
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7

Proportion of People for Door Frame Too Low: 19/20*0.99931+1/20*0.9409

  • AllenHe
  • · Replies 2 ·
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2

Kinematic Equations Rearrangment

  • Malelia123
  • · Replies 12 ·
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12

Two linear algebra questions - Vector geometry

  • ElliottG
  • · Replies 5 ·
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5

Probability of Heads in Coin Flips: 5-Flip Experiment

  • chemrr
  • · Replies 2 ·
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2

What is the square of a column vector?

  • devonho
  • · Replies 4 ·
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4

Solving "sin 2x = sin 2y" with Double Angle Identity

  • Kuma
  • · Replies 1 ·
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1

Estimate how many books profit over 200k$?

  • Mixer
  • · Replies 13 ·
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13

Discrete Math: Self-referential formula

  • SolarMidnite
  • · Replies 2 ·
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2

Why Does This Math Problem Work with Decimals?

  • physicsguy101
  • · Replies 5 ·
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5

I forgot how to factor cubic equations?

  • yurkler
  • · Replies 7 ·
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7

How do I solve exponential equations?

  • ccvispartan
  • · Replies 5 ·
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5

How Do You Solve Problems with Equations and Vectors?

  • Faka
  • · Replies 1 ·
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1

Distance to the corner of a rectangle

  • lkh1986
  • · Replies 7 ·
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7

Basic questions of complex number's geometry?

  • vkash
  • · Replies 6 ·
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6
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2

Equation of a line through a point and another line at 90 degrees.

  • IcedCore
  • · Replies 9 ·
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9

Solving trig function (possible error in solutions)

  • sandy.bridge
  • · Replies 3 ·
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3

Can e^x+x=5 be solved without graphing using algebraic methods?

  • physicsdreams
  • · Replies 4 ·
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4

Efficient Method for Finding Constants in Trig Function Power Problem

  • Pandabasher
  • · Replies 2 ·
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2

Solving Trigonometric Equations

  • BlackOut07
  • · Replies 10 ·
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10

Finding and Fixing Mistakes in Simplifying Algebraic Expressions

  • mindauggas
  • · Replies 6 ·
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6

Find limit of sin(x).sin^-1(x)/x^2 as x approaches 0

  • DryRun
  • · Replies 2 ·
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2

Expand (x-μi)ᵀΣ⁻¹(x-μi) Homework

  • devonho
  • · Replies 7 ·
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7

Expected values probability help

  • puta
  • · Replies 5 ·
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5

What is the probability of winning with three descending numbers?

  • Cylab
  • · Replies 6 ·
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6

Expected values probability help

  • mtingt
  • · Replies 4 ·
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4

Solving for Unknown Variables (r0q)(1) and (q0r)(1) in a Complex Equation

  • nate1936
  • · Replies 9 ·
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9

Use cross-product to find vector in R^4 that is orthogonal

  • DryRun
  • · Replies 9 ·
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9

Evaluate scalar triple products

  • DryRun
  • · Replies 4 ·
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4

Solving Trigonometric Equations

  • frozonecom
  • · Replies 2 ·
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2