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

Prove/Disprove: c Divides (a+b) But Not a, Then c Does Not Divide b

  • Orikon
  • · Replies 5 ·
Replies
5

What are the horizontal asymptotes of cot^-1(x)?

  • kirbykirbykirby
  • · Replies 2 ·
Replies
2

How Do You Combine Two Sound Waves Mathematically?

  • mgoddard
  • · Replies 1 ·
Replies
1

Solving v_rel Equation: Step-by-Step Guide

  • b2386
  • · Replies 1 ·
Replies
1

Prooving 2 Vector Eqn Lines Are Perpendicular

  • ku1005
  • · Replies 12 ·
Replies
12

Exponent Question: Simplifying 6ab - 2b2 / 12ab - 4b2

  • Carnivean
  • · Replies 2 ·
Replies
2

How Can Vector X Be Expressed Using Vectors A, B, and Scalar c?

  • indigojoker
  • · Replies 1 ·
Replies
1

Statistic student return and forgot it all

  • yeungmei
  • · Replies 1 ·
Replies
1

Probability challenge help

  • yeungmei
  • · Replies 1 ·
Replies
1

What should be the value for k

  • donjt81
  • · Replies 1 ·
Replies
1

Problems getting started on this problem

  • donjt81
  • · Replies 4 ·
Replies
4

Finding the Number of Terms and Common Difference in a Finite Series

  • jade35
  • · Replies 8 ·
Replies
8

Calculating SAT Score Probability: Sample Mean vs Population Mean

  • yeungmei
  • · Replies 6 ·
Replies
6

Problem with simplifying fractions

  • jcheema
  • · Replies 8 ·
Replies
8

Solve Finite Difference: Find Constant Equation

  • Meh
  • · Replies 3 ·
Replies
3

Are c1 cos(wt) + c2 sin(wt) and A sin(wt + phi) Equivalent?

  • Knight
  • · Replies 2 ·
Replies
2

How Do You Solve lim(x->0) tan(3x)/sin(8x) Using Trigonometric Limits?

  • donjt81
  • · Replies 3 ·
Replies
3
Replies
10

Find the domain of definition and then the limit

  • mohlam12
  • · Replies 8 ·
Replies
8

How can I prove the trig identity sin2x = 2tanx/(tan^2x+1)?

  • ku1005
  • · Replies 1 ·
Replies
1

What Are the Key Differences and Similarities Between Sets and Logic?

  • chapelman
  • · Replies 1 ·
Replies
1

Question about Polynomial Functions From Data

  • Rowah
  • · Replies 4 ·
Replies
4

How Do You Convert Celsius to Fahrenheit Using a Linear Equation?

  • chowder
  • · Replies 2 ·
Replies
2

Jump Time: Analyzing a Basketball Player's Vertical Leap

  • physics newb
  • · Replies 9 ·
Replies
9

Trig Functions- Could anyone tell me why my working is wrong?

  • ku1005
  • · Replies 2 ·
Replies
2

How Does Force Distribution Affect Two Blocks on a Frictionless Table?

  • physics newb
  • · Replies 1 ·
Replies
1

Recognizing the Best Homework Threads for Students and Helpers

  • Gokul43201
  • · Replies 0 ·
Replies
0

Trouble understanding tangent function

  • dianajanielle
  • · Replies 5 ·
Replies
5

Writing a polynomial for this box thing

  • ceres_sun
  • · Replies 4 ·
Replies
4

Calculating the Volume of Spheres with Different Radii

  • Revolver
  • · Replies 4 ·
Replies
4

Finding the Equation of a Circumference with a Tangent Line and Center at (0,0)

  • FrostScYthe
  • · Replies 5 ·
Replies
5

Parallel vectors and scalar product rule

  • pavadrin
  • · Replies 7 ·
Replies
7

Trigonometric Functionssimplify sin squared functions

  • ku1005
  • · Replies 2 ·
Replies
2

How Do You Decompose the Rational Expression \( \frac{4X^2-1}{2X(X+1)^2} \)?

  • xXitsmechrisXx
  • · Replies 1 ·
Replies
1

Gret if sum1 could help thansk in advance just a segment (circle) Q

  • ku1005
  • · Replies 2 ·
Replies
2

How can the second form of trigonometric equations be derived?

  • danago
  • · Replies 5 ·
Replies
5
Replies
3

Converting rx in spherical coordinates to cartesian.

  • seang
  • · Replies 5 ·
Replies
5

Solving the Problem When r>>a in the Equation (1/r) - (1/(a + r))

  • Sculptured
  • · Replies 12 ·
Replies
12

Probability Units: Mean, Mode, Median, Variance, SD?

  • meee
  • · Replies 2 ·
Replies
2

Cos/Sin Rule Exercises: Challenges and Solutions

  • Rukawa0320
  • · Replies 3 ·
Replies
3

Simplifying the Triple Angle of Tangent Function

  • pavadrin
  • · Replies 5 ·
Replies
5

How Do You Solve This Sigma Notation Problem?

  • sammieh
  • · Replies 21 ·
Replies
21

Proving Area of Parallelogram PQRS with Geometry Proof

  • saikishan
  • · Replies 2 ·
Replies
2

Division with polynomials involving the remainder theorem

  • Byrgg
  • · Replies 3 ·
Replies
3

Equation of Tangent to Curve 2e^(xy)-ysinx=log(y)+2 at (0,1)

  • E=m(C)^2
  • · Replies 3 ·
Replies
3

Need help with this 1 question that has been bugging me all night

  • i-love-physics
  • · Replies 9 ·
Replies
9

Long division(with and without polynomials)

  • Byrgg
  • · Replies 2 ·
Replies
2
Replies
2

Need help with lots of different types of problems

  • RubyRed
  • · Replies 39 ·
2
Replies
39

How Does Quadratic Approximation Determine Local Max/Min?

  • Chadlee88
  • · Replies 2 ·
Replies
2

Proving Squares of Odd Integers Always 8k+1

  • msimard8
  • · Replies 4 ·
Replies
4

Solve Scale Drawing/Ratio Problem: 1:86

  • petuniac
  • · Replies 3 ·
Replies
3

Solving Simple Factoring Problems: Tips and Tricks

  • msimard8
  • · Replies 3 ·
Replies
3
Replies
3

How can i find 0.13r(as in the 3 recurring) as a fraction

  • harlatt
  • · Replies 42 ·
2
Replies
42

Proving divisibility by induction

  • leduc
  • · Replies 3 ·
Replies
3

Stuck on an inequality with absolute values

  • NumbersBelow
  • · Replies 12 ·
Replies
12

Solving Scalar Product Problem: Find Perpendicular Distance

  • pavadrin
  • · Replies 1 ·
Replies
1

Can this trinomial be factored?

  • Byrgg
  • · Replies 6 ·
Replies
6

Solving for h(t) Greater Than 3: Is There a Better Way?

  • uchihajeff
  • · Replies 2 ·
Replies
2

Sigma Notation and string of numbers

  • Old Math Dad
  • · Replies 2 ·
Replies
2

How Do You Convert Grid Units to Miles in Geometry?

  • Devinnator
  • · Replies 1 ·
Replies
1

Precalculus Help - Find f of g & g of f (x)

  • unknownuser
  • · Replies 2 ·
Replies
2
Replies
4

This is a problem that requires solving a trigonometric equation.

  • arizona_cards_11
  • · Replies 16 ·
Replies
16

How Do You Find Axis Intersections in Excel Graphs?

  • Agent
  • · Replies 5 ·
Replies
5

How to Solve Exponential Equations with Natural Logs?

  • pavadrin
  • · Replies 5 ·
Replies
5

Cracking the Code: Can You Beat the NINJA SENSEI?

  • scom
  • · Replies 2 ·
Replies
2

Solving Line-Plane Intersection: Tips and Guidance

  • E=m(C)^2
  • · Replies 5 ·
Replies
5

Mystery of the Perfectly-Circular Pizza: What's the Diameter?

  • kappcity06
  • · Replies 11 ·
Replies
11

Efficiently Factor Polynomials: Solving 36(2x-y)^2 - 25(u-2y)^2

  • richievuong
  • · Replies 5 ·
Replies
5

What Secrets Do the Mysterious Tiles in the Cave Hold?

  • kappcity06
  • · Replies 1 ·
Replies
1

Why do negative numbers behave differently when multiplied?

  • dfollett76
  • · Replies 5 ·
Replies
5

How Many $90 and $120 Tickets Were Sold at the Concert?

  • Izekid
  • · Replies 1 ·
Replies
1

Telling if three vectors in the same plane? Help

  • samh
  • · Replies 5 ·
Replies
5

Is Sin(x) a 1:1 Function and What Defines a Function?

  • Chadlee88
  • · Replies 2 ·
Replies
2
Replies
1

Solving a Basis Problem in R^2

  • Chadlee88
  • · Replies 4 ·
Replies
4

Solving Quadratic Word Problems for Jogger and Walker Speeds

  • kuahji
  • · Replies 2 ·
Replies
2
Replies
2

Polar notation for a complex exponential function

  • Eng67
  • · Replies 9 ·
Replies
9

What Are Linear Combinations in Vector Mathematics?

  • Chadlee88
  • · Replies 1 ·
Replies
1

Proving Vector Spaces: Get Expert Help Now!

  • Chadlee88
  • · Replies 3 ·
Replies
3

Solve Lowest Cost Cuboid Volume Problem - Philipp

  • philipp2020
  • · Replies 3 ·
Replies
3

Is 2tan2b the Simplified Form of tan(45° + b) - tan(45° - b)?

  • philipp2020
  • · Replies 2 ·
Replies
2

Factorisation with 2 variables

  • GregA
  • · Replies 4 ·
Replies
4

Simplify Fractions: Tips and Tricks for Quick and Easy Simplification

  • TSN79
  • · Replies 4 ·
Replies
4

Simplify Equation (2x+3)^(3/2) + (4/2x)^(3/2): Can It Be Done?

  • meee
  • · Replies 2 ·
Replies
2

Calculate Ratio from Data: X/Y Value Comparison

  • the_dialogue
  • · Replies 3 ·
Replies
3

Area of a Circle: Calculating Radius from Area

  • Hollysmoke
  • · Replies 1 ·
Replies
1

Inverse Functions: Logarithms & Qualitative Conclusions

  • Byrgg
  • · Replies 54 ·
2
Replies
54

Finding the Optimal Ratio between X and Y for Maximum Revenue

  • the_dialogue
  • · Replies 1 ·
Replies
1
Replies
2

Find Center of Circle Inscribed in Parabola

  • lkh1986
  • · Replies 1 ·
Replies
1

Trigonometric Identities for Solving for Exact Values

  • pavadrin
  • · Replies 2 ·
Replies
2
Replies
3

How Much Should Rodolfo Paez Contribute Monthly for His Retirement?

  • Gablar16
  • · Replies 1 ·
Replies
1

Cigarretes are expensive(compound interest problem)

  • Gablar16
  • · Replies 4 ·
Replies
4

Impulse Response: Understanding & Applying Maths

  • Päällikkö
  • · Replies 4 ·
Replies
4