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

Proof: The product of any 4 consecutive integers

  • Animuo
  • · Replies 9 ·
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9

Solve Trig Quadrant Help: cos(-65°)

  • Krypto78
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4

Complete Factoring of x^2 - 4x + 4 - 4y^2: Homework Solution & Explanation

  • frozonecom
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Composite Functions: Determine gof(x) & foh(x)

  • DJ-Smiles
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3

[cos nt - n.sin nt] rewrite as [cos (nt + tan^-1 n)]

  • p75213
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Cos^2(π/4): Why Does it Equal 1/2?

  • CrossFit415
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3

Assume that x is a positive multiple of 5 and is greater than 5.

  • fleazo
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3

Discrete Mathematics - Basic Set Theory : Assignment review : Q1

  • Supierreious
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1

Algebra Question: 2r - 2s - 1 = 2(r-s-1) + 1 (?)

  • Animuo
  • · Replies 6 ·
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6

Rate word problem: speed of a plane in still air and distance traveled.

  • Juxtaroberto
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1

Polar Coordinates: Understanding Negative Distance r

  • Peter G.
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2

Calculating the points of tangency for two circles given a picture

  • arashmobilebo
  • · Replies 10 ·
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10

Set Theory : Discrete Mathematics

  • Supierreious
  • · Replies 6 ·
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6

Tool or software able to find the length of the sides

  • hgphtgi
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5
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8

Probability That They Are One Red, One White And One Blue Balls

  • chikis
  • · Replies 10 ·
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10

Find Remainder of 25! Divided by 29: Help Appreciated

  • Saitama
  • · Replies 35 ·
2
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35

Prove Trig Identity: Step-by-Step Guide

  • Aaron H.
  • · Replies 6 ·
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6

How do you find out the exponent if you can't use logs?

  • priceofcarrot
  • · Replies 5 ·
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5

Probability: Discrete Random Variable

  • stosw
  • · Replies 7 ·
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7

How To Find The Factors Of THis Quadratic Equation?

  • optics.tech
  • · Replies 6 ·
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6

What Kind of Analysis Can Be Done on These Graphs?

  • kmgraju
  • · Replies 3 ·
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3

Find all 2x2 matrices such that A=A^-1

  • autodidude
  • · Replies 5 ·
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5

Finding the length of an intersection Of 2 planes

  • Plutonium88
  • · Replies 5 ·
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5

Question regarding binomial theorem.

  • sankalpmittal
  • · Replies 5 ·
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5

Vector And Scalar Equations Of A Plane

  • Plutonium88
  • · Replies 6 ·
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6

Solving Trigonometric Equations: sin(θ) = 3/5

  • MathRaven
  • · Replies 9 ·
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9

Linear System Solutions for a Unique Value of a | Math 115 Homework

  • JettyZ
  • · Replies 4 ·
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4
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4

Solving the Cable Box Replacement Problem: What's the Best Option?

  • vjraman
  • · Replies 2 ·
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2

Positive Int Solns for Factorial Equation: a!b!=a!+b!+c!

  • FeDeX_LaTeX
  • · Replies 10 ·
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10

A Number Made Up Of Two Digits

  • chikis
  • · Replies 19 ·
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19

Summation of a Logarithmic Series

  • S.R
  • · Replies 6 ·
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6

Trigonometry elementary problem

  • sambarbarian
  • · Replies 9 ·
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9

Bearings (compass headings) question high school

  • phospho
  • · Replies 9 ·
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9

Non-linear function - Cubic and Quadratic functions

  • wilfredkwok
  • · Replies 18 ·
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18

Question about Trig Identities

  • Flumpster
  • · Replies 2 ·
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2

Analytic Geometry Question (equation of a circle)

  • vodkasoup
  • · Replies 5 ·
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5

Maximize area of rectangle inside a circle

  • Feodalherren
  • · Replies 5 ·
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5

Calculating asymptote of the function

  • Zenga
  • · Replies 10 ·
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10

A man standing x ft. from a light pole, length of man's shadow?

  • Feodalherren
  • · Replies 3 ·
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3

Calculate cos(θ/2) Given sin(θ)=-5/13

  • MathRaven
  • · Replies 2 ·
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2

Prove problem involving sec cos sin

  • MathRaven
  • · Replies 1 ·
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1

Triangle inside circle, find area of circle.

  • Feodalherren
  • · Replies 22 ·
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22

Divisibility Proof: 9^n-5^n is Divisible by 4

  • odolwa99
  • · Replies 2 ·
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2

Use algebra to find the x and y intercepts , for a quadratic equation

  • duggielanger
  • · Replies 8 ·
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8

How Do You Solve This Complex Logarithmic Equation?

  • Prototype44
  • · Replies 8 ·
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8

How can I factor a 3rd order polynomial using the cubic formula?

  • Kiwiro0ls
  • · Replies 5 ·
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5

Sum of the Values of X, Exponential Equation

  • wiraimperia
  • · Replies 7 ·
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7

Simultaneous equations with 3 Unknowns

  • Krypto78
  • · Replies 12 ·
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12

Expressing A Vector Given Another Vectors

  • wiraimperia
  • · Replies 7 ·
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7

Finding the general expression of the nth term

  • superconduct
  • · Replies 5 ·
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5

Heights and distances (Trigno.)

  • Kartik.
  • · Replies 2 ·
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2

How Do You Solve for Theta in Goniometric Equations?

  • The Alchemist
  • · Replies 5 ·
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5

Range of values in regards to quadratics and discriminant

  • ybhathena
  • · Replies 1 ·
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1

Is this equation possible to solve exactly?

  • Hertz
  • · Replies 9 ·
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9

Trigonometry: At which quadrant should the angle lie?

  • LiHJ
  • · Replies 2 ·
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2

[Statistics] Obtaining test statistic in short problem

  • ozill
  • · Replies 5 ·
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5

Solving linear system of congruences

  • lveenis
  • · Replies 9 ·
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9

What exactly is this question acting?

  • xdrgnh
  • · Replies 3 ·
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3

Proving the trigonometric identity

  • justwild
  • · Replies 12 ·
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12

Is the Function u(c, l) = 20000c + c^2 + l Quasiconcave?

  • Alesak
  • · Replies 2 ·
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2

Trig Identity for Simplifying Expression | No Quotes

  • kqwan
  • · Replies 1 ·
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1
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29

How to Determine Where a Sine/Cosine Graph Intersects the X-Axis

  • biologystu
  • · Replies 2 ·
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2

Statistics and independent variables

  • Cinitiator
  • · Replies 1 ·
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1

Balancing Areas of Two Rectangles

  • Maccadin
  • · Replies 8 ·
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8

Inequality with modulus question

  • vodkasoup
  • · Replies 6 ·
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6

Solving Exponents: Dividing \frac{xa+b}{xa-2b}

  • Gregory.gags
  • · Replies 2 ·
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2

How can I solve for U2 in this equation?

  • manal950
  • · Replies 11 ·
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11

Solve for 0<b<a: Proving Inequality & Approximation Error

  • Alephu5
  • · Replies 1 ·
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1

Need help with half-life of C-14 question (exponents unit)

  • Gregory.gags
  • · Replies 8 ·
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8

Explain how two angles are equal

  • Toranc3
  • · Replies 3 ·
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3

Matrix Equation AXB=C solve for X

  • Sage Sky
  • · Replies 6 ·
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6

Simplifying an algebraic fraction with factors

  • vodkasoup
  • · Replies 3 ·
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3

Why do I have to multiply by -1 when simplifying (sometimes)

  • Jherek
  • · Replies 5 ·
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5

What is the area of this part of a circle?

  • kaizokonpaku
  • · Replies 12 ·
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12

Unsure of the Meaning of "n|q"? Get Help Here!

  • Saitama
  • · Replies 2 ·
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2

Finding Angle B in Triangle: Step-by-Step Guide

  • hvidales
  • · Replies 10 ·
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10

Dividing exponents, Why don't I use BEDMAS for this?

  • Gregory.gags
  • · Replies 8 ·
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8

Exponential decay, but results reach 0

  • priceofcarrot
  • · Replies 6 ·
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6

Understanding Conditional Probabilities

  • CmdrGuard
  • · Replies 3 ·
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3

Correctness of my equation relative to the standard given in the text

  • GOPgabe
  • · Replies 4 ·
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4

Geometric sequence, find the best interest option over a year

  • thekopite
  • · Replies 2 ·
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2

Rearrange this equation to make x the subject

  • autodidude
  • · Replies 13 ·
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13

Proving this trigonometric identity

  • hms.tech
  • · Replies 6 ·
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6

Difference between sample standard deviation and population standard deviation?

  • NewtonianAlch
  • · Replies 4 ·
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4

How can I solve for u and ultimately find ω in this equation?

  • baby_1
  • · Replies 10 ·
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10

Solving equation with cube roots.

  • chingel
  • · Replies 2 ·
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2

Confused about method to approximate a decimal number.

  • arroy_0205
  • · Replies 2 ·
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2

What is the Inverse of Exponential Functions with Different Bases?

  • ishant
  • · Replies 7 ·
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7

Binomial Theorem: Find Expansion & Approximation of 97^(1/2)

  • naden1
  • · Replies 4 ·
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4

Small trig substitution problem.

  • ozone
  • · Replies 5 ·
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5

Sum sequence of a geometric series

  • thekopite
  • · Replies 4 ·
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4

What is the sum of a finite series with a constant p and variable n?

  • Luke77
  • · Replies 8 ·
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8

Confused about +- symbol use in inverse function

  • priceofcarrot
  • · Replies 8 ·
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8

Using e to determine population growth?

  • moonman239
  • · Replies 6 ·
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6

How to interpret this Sigma notation.

  • kieth89
  • · Replies 6 ·
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6

Factoring Problem: Error in Homework Statement?

  • Government$
  • · Replies 11 ·
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11

Algebra II Equations Containing Radicals Part 2

  • velox_xox
  • · Replies 5 ·
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5