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

GRE Test Question Homework: Is (n^*)^* = n?

  • Xkaliber
  • · Replies 4 ·
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4

Solving for x: 0<x<2pi When tan x/2 > -1

  • dorkee
  • · Replies 7 ·
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7

Help Identifying x-intercepts of quadratic functions

  • Kalzar89
  • · Replies 2 ·
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2

Finding a triangles angles from its area + 2 sides

  • rought
  • · Replies 1 ·
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1

Ugly trig and exponential problem

  • gulfcoastfella
  • · Replies 6 ·
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6

Easy graphing with parabolas seems impossible to defeat

  • fotballski
  • · Replies 2 ·
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2

Discus Throws at School Meet: Vector Diagram

  • halb
  • · Replies 1 ·
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1

Evaluating Limit with Radical: Can You Help?

  • Precursor
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3

How Can You Solve for 33 Using Only Four 4s?

  • UNknown 2010
  • · Replies 3 ·
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3

Help with Circle Geometry Homework - Calculate Co-ordinates of M

  • DERRAN
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2

Solving Trig Functions for Simplifying Equations and Finding Solutions

  • alanp1950
  • · Replies 1 ·
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1

Are Complex Roots of a Polynomial Greater Than 1?

  • kurnimaha
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1

Factoring and solving for variable x

  • imdapolak
  • · Replies 5 ·
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5

Triangle Area Homework Statement | Image for Reference

  • keemosabi
  • · Replies 5 ·
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5

Solving nonlinear equations using matrix

  • sameera
  • · Replies 1 ·
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1

How Do Conditional Probabilities and Expectations Relate in Statistics?

  • MaxManus
  • · Replies 1 ·
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1

Intersection of two planes (without a given point)

  • RosiePosie
  • · Replies 2 ·
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2
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10
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3

Probability question of flipped coins

  • briteliner
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1

Horizontal Shift of a function

  • DarrenM
  • · Replies 1 ·
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1

Algebra 2 Finding Zeros: How to Handle Complex Roots

  • Loonygirl
  • · Replies 10 ·
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10
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2

Determining probability using combinations/permutations (i think)

  • subopolois
  • · Replies 1 ·
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1

Uncovering the Geometry of x^2+y^2=25 & y=sqrt 25-x^2

  • jeahomgrajan
  • · Replies 13 ·
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13

Prove by Induction: cos(6\theta)+isin(6\theta)=(cos\theta +isin\theta )^6

  • Mentallic
  • · Replies 7 ·
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7

Simplifying radicals(algebra II)

  • liz777
  • · Replies 5 ·
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5

G(x) and F(X) of following (I have work done)

  • woox
  • · Replies 19 ·
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19

How Do You Solve the Equation log3(5x-4) + log3(2x+7) = 2?

  • maobadi
  • · Replies 5 ·
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5

Graphing a Circle: Find Center, Radius & Intercepts

  • elitespart
  • · Replies 3 ·
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3

Solving the 3D Schrödinger Equation using Fourier Integral Transform

  • sahar1978
  • · Replies 2 ·
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2

What should I be thinking about to solve Uniform Motion Problems?

  • Raizy
  • · Replies 3 ·
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3

Is e^-ln(x) equal to 1/x? | Homework Statement

  • fiziksfun
  • · Replies 4 ·
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4

How Can We Verify the Perpendicularity of Vector Products?

  • wajed
  • · Replies 2 ·
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2

Steps necessary to solve for B

  • DumbOne
  • · Replies 5 ·
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5

Matrix Transformation: Linear Algebra Final Question Explained

  • Melawrghk
  • · Replies 1 ·
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1

How do I handle decimals and fractions within parentheses in linear equations?

  • Bavariadude
  • · Replies 4 ·
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4
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3

Quick way to simplify (12(sqrt(2) + 17)

  • bigevil
  • · Replies 2 ·
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2

Dealing with absolute value functions

  • sunfleck
  • · Replies 1 ·
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1

How to find the Inverse of f(x) = 3+x+(e^x)

  • r_swayze
  • · Replies 7 ·
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7

What are the negations of complex statements in statement logic?

  • test_notagain
  • · Replies 2 ·
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2

Proving Properties of z When n is Odd/Even Integer

  • maobadi
  • · Replies 1 ·
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1

Factor 6x^2-11x+4 with the AC Method

  • kadavis2010
  • · Replies 4 ·
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4

Help triplets to 2d conversion formula

  • metalfred
  • · Replies 2 ·
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2

How to Simplify Radicals in the Denominator?

  • kadavis2010
  • · Replies 4 ·
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4

How can 1/y = kr + C/e^(rt) be solved for y?

  • fiziksfun
  • · Replies 1 ·
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1

Expressing complex function in standard rectangular form

  • elimenohpee
  • · Replies 3 ·
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3

What is the derivative of arcsin(4x+2)?

  • jumbogala
  • · Replies 4 ·
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4

Solving x/(.12 + x) = 1/3: A Simple Solution

  • degarza22
  • · Replies 2 ·
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2
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4

Surface area, spanning angle,

  • Rola
  • · Replies 3 ·
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3

Crude geometric estimation or am I missing something?

  • neolayman
  • · Replies 3 ·
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3

Time vs Height - EASY but easily forgotten :/

  • Synix
  • · Replies 1 ·
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1

Can you solve this function problem with a hint and the given condition?

  • barathiviji
  • · Replies 4 ·
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4

How Do You Solve Polynomial Inequalities Like (x-1)(x+2)(x-4) ≤ 0?

  • rought
  • · Replies 3 ·
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3

Plotting Cartesian Circles to Touch Unit Circle Once

  • Mentallic
  • · Replies 16 ·
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16

Wacky trig. I am totally lost.

  • shyboyswin
  • · Replies 2 ·
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2

NEED understanding, binomial squares

  • slmarais
  • · Replies 9 ·
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9

Factoring x2+4 and Special Cubed Theorems: Homework Help

  • hockeyfghts5
  • · Replies 5 ·
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5

Finding Points of Intersection for f(x) = 2x/pi and f(x) = sin x

  • ACE_99
  • · Replies 13 ·
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13

How Do Absolute Values Affect Solving Function Equations?

  • PhysicslyDSBL
  • · Replies 1 ·
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1

Rearrange Equations: Making J the Subject - Need Help

  • peter_pan
  • · Replies 1 ·
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1

What is the ratio of dividing 6705 in the ratio 2:8?

  • peter_pan
  • · Replies 11 ·
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11
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7

Proving Existence of an Upper Bound for A Given Sup A < Sup B

  • Enjoicube
  • · Replies 3 ·
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3

How Do You Calculate Train Velocities When Moving in Opposite Directions?

  • psykatic
  • · Replies 2 ·
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2

How Do You Solve Logarithmic Expressions Involving Fractions?

  • elmers_
  • · Replies 1 ·
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1

What Is the Asymptote of y = 2^(x+3) + 4?

  • alliereid
  • · Replies 10 ·
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10

How to Solve This Logarithmic Problem?

  • phy_
  • · Replies 4 ·
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4

How Do You Simplify the Expression sin 3x cos x + cos 3x sin x?

  • alliereid
  • · Replies 1 ·
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1

Solve for x: e^x - 15e^-x = 2 | Algebraic Solution & Step-by-Step Guide

  • Webs993
  • · Replies 2 ·
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2
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15

Could you me with this question?

  • phy_
  • · Replies 1 ·
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1

Does anyone know what this notation means?

  • sdoyle
  • · Replies 1 ·
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1

Solve GRE Geometry Problem: X-Y = 30

  • Spirochete
  • · Replies 2 ·
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2

2 5cm radius circles inscribed inside a 15cm circle

  • KKW
  • · Replies 2 ·
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2

What Are the Events in a Sample Space of a Deck of Cards?

  • vvvidenov
  • · Replies 6 ·
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6

Can you determine the relationship between 20+/4+ and 5+?

  • Spirochete
  • · Replies 3 ·
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3

Assistance with physics vector problem

  • -EquinoX-
  • · Replies 9 ·
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9

Understanding Subtraction: Minus Numbers in Math Explained

  • runescapedude
  • · Replies 5 ·
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5

Therefore, Bill and Gina would have the same number of coins, 80 each.

  • Spirochete
  • · Replies 7 ·
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7

Linear Programming and Maximization

  • rams_man13
  • · Replies 3 ·
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3

Algebra (probably easy) problem

  • Spirochete
  • · Replies 7 ·
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7

PRoblems with precalc functions

  • crazy_shoes
  • · Replies 5 ·
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5

Find Radians: How to Use Sin to Solve for X

  • pooker
  • · Replies 3 ·
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3

Solving Union and Intersection Expressions

  • dimpledur
  • · Replies 7 ·
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7

How many can you determine with ?

  • Дьявол
  • · Replies 14 ·
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14

Find Angles of Vector A with Coordinate Axes

  • MaxManus
  • · Replies 6 ·
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6

What Conditions on c, d, e Fill a Dashed Triangle Using Vectors u, v, w?

  • scarebyte
  • · Replies 1 ·
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1

Quadratic equation without numbers?

  • lax1113
  • · Replies 9 ·
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9

Which Proportion is Not Equivalent in This SAT Math Problem?

  • Elbobo
  • · Replies 2 ·
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2

How Many Combinations Are Possible with AAABBBCCDE?

  • nobahar
  • · Replies 2 ·
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2

What is the Orthogonal Property of Vectors in Span?

  • war485
  • · Replies 4 ·
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4

Binomial Distribution Statistics Problem

  • blondsk8rguy
  • · Replies 4 ·
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4

Solving 16^x + 4^(x+1) - 3 = 0

  • itsme03
  • · Replies 2 ·
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2

What is the Mean When Tossing a Dice Three Times?

  • Niles
  • · Replies 2 ·
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2

Trying to find the equation of a cubic

  • zebrasauce
  • · Replies 4 ·
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4

Linear Algebra: Parallel, Perpendicular, or Neither?

  • sdoyle
  • · Replies 7 ·
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7

How many different card arrangements exclude inner cards at the ends?

  • Elbobo
  • · Replies 1 ·
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1