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

Will These Numbers Appear in Specific Mathematical Sequences?

  • Aya
  • · Replies 7 ·
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7

Prove that (1-sin2x)/cos2x = (1-tanx)/(1+tanx)

  • 01suite
  • · Replies 15 ·
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15

Sequence and series word problem

  • Aya
  • · Replies 4 ·
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4

Proving Rhombus Diagonals Intersect at Right-Angles

  • masterofthewave124
  • · Replies 14 ·
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14

Solve Trig Equation: cos 2x - cos^2x = 0

  • 01suite
  • · Replies 5 ·
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5

Testing collinearity and coplanarity with vectors

  • masterofthewave124
  • · Replies 11 ·
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11

Determine Right Angle of ΔABC with Vector Methods

  • masterofthewave124
  • · Replies 17 ·
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17

How to plot graphs like x sin(x) and x sin(1/x)

  • rishiraj20006
  • · Replies 5 ·
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5

Prove Normal Subgroup When G Order is Twice H Order

  • Nevermore
  • · Replies 1 ·
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1

Vector Equations and Circle Problems

  • pavadrin
  • · Replies 11 ·
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11

Finding the Solution to an Extra Credit Math Problem

  • hmm?
  • · Replies 8 ·
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8

Finding the Obtuse Angle Between Diagonals in a Diagram

  • masterofthewave124
  • · Replies 5 ·
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5
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1

How Is pH Calculated for a More Alkaline Solution?

  • petuniac
  • · Replies 3 ·
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3

Finding distance between Pittsburgh and Miami using arc length

  • Gablar16
  • · Replies 2 ·
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2

How Do You Find the Equation of a Line Given Two Points?

  • pavadrin
  • · Replies 6 ·
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6

Solving X-Intercepts of 30x^4+23x^3-29x^2+6x/x

  • SwAnK
  • · Replies 2 ·
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2

For what value of p does the system have solutions?

  • finchie_88
  • · Replies 4 ·
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4

Linear dependence/independence

  • masterofthewave124
  • · Replies 5 ·
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5

Things to expect with grade 10 Geometric Sequences

  • wScott
  • · Replies 2 ·
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2

Formula for joints in cubic rod structures

  • Carlito1
  • · Replies 1 ·
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1

Parabola conical whatever equations

  • runicle
  • · Replies 4 ·
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4

Inscribing square into parallelogram

  • r4nd0m
  • · Replies 1 ·
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1

Two irrational numbers with rational sum and product

  • **bouncey!!**
  • · Replies 7 ·
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7

Finding the Circle that Passes Through Three Points on a Conic

  • RooftopDuvet
  • · Replies 2 ·
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2

Simple equation , need walk through

  • PhillyGixxer
  • · Replies 10 ·
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10
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5

What Is the Value of k That Makes This Matrix Non-Invertible?

  • wayneo
  • · Replies 4 ·
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4

Projectile motion skateboarder throws a ball

  • man_united_number_1
  • · Replies 7 ·
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7

Where does the 100 come from in the DuBois formula rearrangement?

  • swears
  • · Replies 8 ·
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8

Finding the equation for a sequence of peak amplitudes from a waveform

  • NiennaAncalimon
  • · Replies 2 ·
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2

Resources for probability project on weather forecasting

  • minase
  • · Replies 5 ·
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5

Solving 4·3^x = 7·5^x and 2^x = e^(x+1)

  • swears
  • · Replies 15 ·
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15

Angle to a road sign: when is it largest as a car approaches?

  • Alec
  • · Replies 9 ·
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9

Proving Angles in a Circle: Angle 2 is Twice Angle 1

  • Vashti
  • · Replies 2 ·
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2

How to Calculate Distance to the Horizon Based on Height Above Water

  • Alec
  • · Replies 3 ·
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3

Simplifying Algebraic Factoring: Identifying Patterns and Formulas

  • JoshHolloway
  • · Replies 4 ·
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4
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3

Calculating Divergence of a Function: A Berliner's Struggle

  • Daniel Jackson
  • · Replies 1 ·
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1

4-letter words can be made from pulleys?

  • James_fl
  • · Replies 8 ·
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8
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4

Preparing for Precalculus: What to Know Beforehand

  • amenon
  • · Replies 4 ·
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4

Exponential equations, profit maximization, and vector magnitude

  • danago
  • · Replies 4 ·
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4

QUESTION 3:Calculate the value of log base 3 of 81SOLUTION:Answer is 4.

  • petuniac
  • · Replies 11 ·
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11

Division with variables (I think I'd call this double division)

  • wScott
  • · Replies 5 ·
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5

How to solve x^x = 13 using logarithms

  • minase
  • · Replies 2 ·
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2

What are the possible values of a for which (5a - 3:7a^2 - a + 1) = 1?

  • kezman
  • · Replies 5 ·
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5

Do Vector Components Always Use Sine for Y and Cosine for X?

  • PhillyGixxer
  • · Replies 3 ·
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3

Strategy of drawing the points of the sequence

  • PPonte
  • · Replies 5 ·
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5

Proving a volume of a cylinder

  • rachael
  • · Replies 7 ·
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7

Carol's age has reversed digits of her father's, sum of digits is 10

  • bindwood
  • · Replies 1 ·
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1

Fourier transform Discreet time-shift

  • electronic engineer
  • · Replies 2 ·
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2

What is the domain of 10/ln x?

  • Rusho
  • · Replies 5 ·
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5

Circle and tangient question, AS core 2

  • Sink41
  • · Replies 4 ·
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4

Finding rectangle dimensions for maximum area in circle x² + y² = 4

  • rachael
  • · Replies 2 ·
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2

Calculating Magnitudes and Ratios of Position Vectors on a Line

  • pavadrin
  • · Replies 2 ·
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2

Why does x = 1/5 not work in log6 36 = 5x+3?

  • Rusho
  • · Replies 7 ·
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7
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1

Application of differentiation

  • rachael
  • · Replies 1 ·
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1

How to approach solving for parallel vectors?

  • pavadrin
  • · Replies 1 ·
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1

How do logarithms and exponential functions relate?

  • acceler8
  • · Replies 3 ·
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3

Is 19.14^n + 1 Always Not Prime?

  • kezman
  • · Replies 13 ·
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13

Exponential and logarithmic properties

  • fisico
  • · Replies 1 ·
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1

Finding piston displacement x as a percentage of h with radians

  • pavadrin
  • · Replies 9 ·
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9

Why is the answer for solving cos2x=cosx not 0°+360k°?

  • WillyTech
  • · Replies 9 ·
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9

How Does Proving A Matrix Is Row Equivalent to the Identity Matrix Work?

  • Anisotropic Galaxy
  • · Replies 3 ·
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3

Probability of World Series Length?

  • blumfeld0
  • · Replies 8 ·
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8

Calculating the Probability of Guessing the 51st Card Color

  • blumfeld0
  • · Replies 17 ·
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17

Mode of 1,1,2,2: Is it 1, 2, Both, or None?

  • r4nd0m
  • · Replies 4 ·
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4

Proving the Formula for the n-th Prime Number using Number Theory

  • eljose
  • · Replies 3 ·
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3

Finding probability and variance for drawing red balls from an urn

  • blumfeld0
  • · Replies 2 ·
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2

Solving Radian Measure Problems for Pavdarin

  • pavadrin
  • · Replies 2 ·
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2

What is considered a high standard deviation?

  • 0TheSwerve0
  • · Replies 3 ·
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3

Trig Problem: Finding Principle Values of x

  • WillyTech
  • · Replies 3 ·
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3

Finding x and y intercepts of y = cos(e^(-x) + 2)

  • jacy
  • · Replies 11 ·
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11

Can Opposite Angles Determine Special Properties in Quadrilaterals?

  • Benny
  • · Replies 4 ·
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4

Motorcycle race with speed and time differences

  • msimard8
  • · Replies 1 ·
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1

Simplifying sin²x cos⁴x and proving three trig identities

  • Laceylb
  • · Replies 21 ·
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21

Problem Solving question with circles

  • Aya
  • · Replies 4 ·
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4

Trig problem cos (arctan 5/12)

  • jacy
  • · Replies 7 ·
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7
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2

Can You Use Patterns to Find the Last Two Digits of Powers of 4?

  • sparsh
  • · Replies 1 ·
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1

How can I use the Rational Zeros Theorem to factorize cubic functions?

  • danago
  • · Replies 9 ·
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9

How to Create a Triangle with Given Dimensions and Angle?

  • electronic engineer
  • · Replies 13 ·
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13

Solving Subscripted Variable Equations: Formula and Example Problems

  • Richay
  • · Replies 4 ·
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4
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3

Proving (1-sin x)/(1+sin x) = (sec x-tan x)²

  • hmm?
  • · Replies 6 ·
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6

Uniform Motion Problems Part.2

  • Richay
  • · Replies 2 ·
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2

Analytical Geometry: Recommended Books

  • pokerponcho
  • · Replies 1 ·
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1
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8

Write an equation for the circle

  • Aya
  • · Replies 6 ·
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6

What does zero-mean data set mean in trend removal?

  • big man
  • · Replies 1 ·
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1

Word problem/Quadratic equations

  • Richay
  • · Replies 9 ·
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9
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9

Solve Geometry Problem: Find Angle EDC Without Cheating

  • Jameson
  • · Replies 1 ·
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1

Counting non-decreasing functions from [1,n] to [1,n]

  • kezman
  • · Replies 17 ·
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17

What Are Your Thoughts on This Simple Circle Problem?

  • soggybread
  • · Replies 3 ·
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3

Calculate Water Volume Needed for Sphere Tank

  • avb203796
  • · Replies 6 ·
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6

How to solve x*a^x=b with math reasoning?

  • raul_l
  • · Replies 4 ·
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4