General Math Forum

Join in expert discussion on general math topics that are not applicable to the specific categories. This includes topics are usually high school math level. Homework help is available.

Threads

Stack Height of 1 Million 1-Dollar Bills: ~33 Yards

  • jangoom
  • · Replies 1 ·
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1

Undergrad How do you move floors and ceilings in discrete math?

  • iScience
  • · Replies 4 ·
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4

Algebra.... Answer should be 0?

  • jangoom
  • · Replies 6 ·
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6

Are you a mathematician from one of these 24 scientific families?

  • ZapperZ
  • · Replies 8 ·
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8

A problem on arithmetic progressions.

  • mathlearn
  • · Replies 6 ·
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6

Undergrad The concept of 'unknowns' in equations

  • Jehannum
  • · Replies 6 ·
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6

Inequality Challenge: Prove 3x2y2+x2z2+y2z2 ≤ 3

  • lfdahl
  • · Replies 4 ·
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4

Width of a rectangular frame in terms of x.

  • mathlearn
  • · Replies 4 ·
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4

Solving for x in $\frac{6x}{150}$ - $\frac{5x}{150}$ = 1

  • mathlearn
  • · Replies 3 ·
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3

Two elementary algebra problems

  • jangoom
  • · Replies 3 ·
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3

How Do You Calculate Miles Per Gallon?

  • jangoom
  • · Replies 4 ·
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4

High School Circles -- transform degrees in minute

  • NickTesla
  • · Replies 7 ·
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7

Find the only value of N which satisfies all of the following

  • lmae
  • · Replies 5 ·
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5

Moment of Inertia: Disc+Point Mass | Help Needed

  • markosheehan
  • · Replies 1 ·
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1

What is the minimal number satisfying this inequality?

  • lfdahl
  • · Replies 4 ·
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4

Bob's Savings: Solving the Unknown Value Problem

  • lmae
  • · Replies 2 ·
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2

Find the Solutions of a Quadratic Equation Using the Quadratic Formula

  • mathlearn
  • · Replies 3 ·
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3

Complementary & Supplementary Angles

  • bernardl
  • · Replies 4 ·
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4

Finding the Measures of Angles in a Linear Pair

  • bernardl
  • · Replies 2 ·
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2

From a sketch to the compass ; Geometric construction

  • mathlearn
  • · Replies 8 ·
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8

High School Deriving law of sines from cross product

  • Mr Davis 97
  • · Replies 4 ·
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4

Finding m<2 When m<1 & m<2 are Given

  • bernardl
  • · Replies 1 ·
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1

Undergrad How to do division in modulus mode ?

  • mohamed el teir
  • · Replies 1 ·
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1

Show that X satisfies the equation

  • mathlearn
  • · Replies 10 ·
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10

Determine if x = -2 is a solution to the equation 2x – 2 = 3x

  • lmae
  • · Replies 2 ·
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2

Why Do Physics Equations Confuse Me So Much?

  • lmae
  • · Replies 5 ·
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5

Find and approximate value square root of 3 using the roots of the graph.

  • mathlearn
  • · Replies 12 ·
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12

Solve the following equations for a

  • lmae
  • · Replies 3 ·
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3

Undergrad Is Mathematics Inherent in Nature or a Human Invention?

  • akashpandey
  • · Replies 2 ·
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2

Show that angle AXC=angle ACB; geometric construction

  • mathlearn
  • · Replies 10 ·
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10

Understanding Complex Geometric Sequences: A Revision Question

  • paul6865
  • · Replies 1 ·
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1

Help finding length of perpendiculars in a box of known dimension

  • ttk
  • · Replies 2 ·
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2

What are the values of x for f(x) = g(x)?

  • Iwanttolearn1
  • · Replies 4 ·
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4

Prove Moment of Inertia of Annulus w/ Radii 3m & 1m: 5m

  • markosheehan
  • · Replies 3 ·
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3

High School Solving Equations in C: What Does It Mean?

  • FTM1000
  • · Replies 4 ·
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4

What will the profit be if 1500 units are sold next year?

  • Simon T
  • · Replies 3 ·
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3

What is the length of DC in this trapezium?

  • mathlearn
  • · Replies 11 ·
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11

High School Line Equations: Rearranging Ax + By + C = 0 to y=mx+b

  • Einstein's Cat
  • · Replies 4 ·
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4

Real Factor $(1-(ab+bc+ca))^2 + (a+b+c-abc)^2$

  • kaliprasad
  • · Replies 2 ·
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2

Undergrad Bounds on Chebyshev Function ##\theta (x)##

  • Physicist97
  • · Replies 4 ·
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4
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3

I am trying to figure out the right fast fourier transform size.

  • whariwharangi
  • · Replies 16 ·
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16

Construct vertex D of an acute angled triangle

  • mathlearn
  • · Replies 6 ·
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6

Undergrad Rearranging equation with more than variable instance

  • Jehannum
  • · Replies 11 ·
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11

Undergrad Basically it's easy to solve the problems given recursive formulas (repost)

  • lsepolis123
  • · Replies 2 ·
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2

When does the elastic string become slack in simple harmonic motion?

  • markosheehan
  • · Replies 2 ·
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2

Determine how many times are of PQR in terms of XYZ

  • mathlearn
  • · Replies 5 ·
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5

Choosing the Fastest 3 Horses from 25 - No Stopwatch Needed

  • kaliprasad
  • · Replies 6 ·
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6

Find the radius of the sector adjoining a triangle

  • mathlearn
  • · Replies 4 ·
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4

High School How to calculate the decimal power?

  • NickTesla
  • · Replies 3 ·
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3

How Many Races to Find the Top 3 Horses from 25 with Only 5 Tracks?

  • Albert1
  • · Replies 1 ·
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1

Undergrad The angle of intersection between two planes in R3

  • Erenjaeger
  • · Replies 9 ·
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9

Solve the trigonometric equation sin(2theta-pi/6) = cos(2theta)

  • iixfaith
  • · Replies 10 ·
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10

Solving Sigma(210): Step-by-Step Guide

  • Vi Nguyen
  • · Replies 2 ·
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2

Find the value of X in terms of Y

  • mathlearn
  • · Replies 4 ·
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4

Find the angle X inside a pentagon with a square

  • mathlearn
  • · Replies 4 ·
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4

Find the value of x square + y square

  • mathlearn
  • · Replies 2 ·
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2

Undergrad Stacking bricks-Physics puzzle

  • Andreas C
  • · Replies 7 ·
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7

Undergrad What do you call a parallelepiped that isn't a cube?

  • udtsith
  • · Replies 3 ·
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3

How many pages of math can you absorb in one day?

  • LevLandau
  • · Replies 2 ·
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2

Undergrad First drawing of a Cartesian Graph?

  • Scott S
  • · Replies 4 ·
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4

Undergrad Graph Theory Reconstruction Conjecture

  • NotGauss
  • · Replies 1 ·
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1

High School How 1 degree is equal to 60 mins?

  • niharika1908
  • · Replies 2 ·
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2

Struggling to solve number pattern question Please help

  • yiannicart
  • · Replies 2 ·
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2

Find cos theta and tan theta using sin theta

  • mathlearn
  • · Replies 4 ·
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4

High School Cyclic quadrilateral and alternate segment

  • grzz
  • · Replies 1 ·
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1

High School Finding the smallest positive solution to trig equation

  • Mr Davis 97
  • · Replies 3 ·
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3

Simplifying radicals - Help with basic number manipulation

  • Comscistudent
  • · Replies 5 ·
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5

Discount Question: Balance Due After Partial Payments

  • Simon T
  • · Replies 5 ·
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5

Undergrad Finding number of solutions for a system of equations?

  • kochibacha
  • · Replies 3 ·
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3

Min -7, Interval -6 to 0, & Find Roots of \sqrt{7}

  • mathlearn
  • · Replies 22 ·
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22

Prove the sum is greater than or equal to one half

  • anemone
  • · Replies 9 ·
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9

Rationalising Surds: Get the Answers You Need - Daniel

  • danielw
  • · Replies 3 ·
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3

Simplification of surds and powers

  • danielw
  • · Replies 2 ·
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2

For which integers x,y is (4-6*sqrt(2))^2 = x+y*sqrt(2)?

  • danielw
  • · Replies 1 ·
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1

Undergrad Have You Tried Using Polish or Reverse Polish Notation in Your Calculations?

  • Nidum
  • · Replies 12 ·
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12

High School How can log(x) = ln(x)/ln(10)?

  • Natalinatul
  • · Replies 6 ·
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6

High School Time-evolving Fourier transform

  • entropy1
  • · Replies 2 ·
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2

Can You Find the Relationship Between a and b in This Algebra Problem?

  • anemone
  • · Replies 2 ·
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2

How to do this discount question

  • Simon T
  • · Replies 1 ·
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1

Coordinates of Point H in GH Line

  • brackenwolf
  • · Replies 2 ·
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2

High School Calculator automatic rounding is screwing up my calculation.

  • Lebombo
  • · Replies 2 ·
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2

High School Math Facebook Challenge: Multiply or End-to-End?

  • davenn
  • · Replies 17 ·
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17

Help for Struggling Math Student - Can Someone Assist?

  • Koen crawford
  • · Replies 1 ·
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1

High School Proof that exterior angles of a triangle sum to 360

  • Mr Davis 97
  • · Replies 1 ·
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1

High School Verification of correct solution to quadratic problem

  • Mr Davis 97
  • · Replies 12 ·
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12

Force on 10 Kg Block on 51° Inclined Plane

  • JessiMen
  • · Replies 6 ·
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6

Squaring and Cubing Equations: Explained!

  • paulmdrdo1
  • · Replies 2 ·
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2

Graduate Algorithms for solving recurrence relations?

  • Stephen Tashi
  • · Replies 3 ·
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3

High School How Is the Gradient of an Angle Bisector Determined from Two Intersecting Lines?

  • Einstein's Cat
  • · Replies 1 ·
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1

Undergrad Does small angle mean small angular velocity?

  • Happiness
  • · Replies 6 ·
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6

Square Int x: $x(x+1)(x+7)(x+8)$ is Square Integer

  • kaliprasad
  • · Replies 6 ·
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6

Solve for x in the denominator of the fraction

  • mathlearn
  • · Replies 4 ·
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4

Algebraic Fraction: How to Solve and Simplify?

  • mathlearn
  • · Replies 5 ·
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5

Undergrad Definition of "recurrence relation"

  • Stephen Tashi
  • · Replies 11 ·
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11

How Do You Calculate Angle X in Triangle ABE Given Points BC and CD?

  • mathlearn
  • · Replies 1 ·
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1

Undergrad Prime-counting function questions

  • AdamsJoK
  • · Replies 5 ·
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5

High School Verifying that all solutions to a system of eq. are found

  • Mr Davis 97
  • · Replies 4 ·
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4

Undergrad Summation for extended binomial coefficients

  • Astudious
  • · Replies 3 ·
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3

Undergrad De Movire's Theorem: Applications for Root Extraction

  • revitgaur
  • · Replies 2 ·
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2