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.
Sub-forums
Threads
Simple Model of 9/11/2001 World Trade Center Collapse
- Ackbach
- · Replies 8 ·
Find all non-negative rational solutions of x^y · y^x = y^y
- lfdahl
- · Replies 3 ·
Number of steps of euclidean algorithm
- evinda
- · Replies 4 ·
Product of integers that are relatively prime to m
- evinda
- · Replies 22 ·
Why don't CO, NO and SO2 follow normal oxidation state rules?
- markosheehan
- · Replies 5 ·
Compositions, Inverses and Combinations of Functions
- mak23
- · Replies 4 ·
Undergrad Calibration of axis for Oragami folds
- ddddd28
- · Replies 4 ·
Find positive integers x,y,z in 1/x+1/y=7/8(x,y∈N)
- Albert1
- · Replies 9 ·
How do I find the point P on a circle with a slope of 2 from (0,0)?
- mathdad
- · Replies 15 ·
Trigonometry and periodic functions
- mak23
- · Replies 3 ·
Shortest other leg in a right triangle with one leg of length 2001
- lfdahl
- · Replies 2 ·
Find x and y in x+y=3421 and 23% of x + 13.5% of y = 684.34
- northuk
- · Replies 1 ·
What Is the Equation of a Line Parallel to 4x + 5y = 20 Passing Through (0,0)?
- mathdad
- · Replies 28 ·
Can You Find a Unique N for This Cubic and Quadratic Diophantine Equation?
- lfdahl
- · Replies 9 ·
A finite number of positive integer solutions 1/x+1/y=p/q
- lfdahl
- · Replies 4 ·
How do I write a linear equation from given information?
- mathdad
- · Replies 13 ·
How Do You Solve the Absolute Value Equation -3|x+5| + 1 = 7|x+5| + 8?
- mathdad
- · Replies 3 ·
How Do You Calculate the Slope of a Line with Given Coordinates and Area?
- mathdad
- · Replies 2 ·
High School Solving Absolute Value Inequalities: How to Define Cases
- blueblast
- · Replies 4 ·
Can we use this method to efficiently check if $N$ is composite?
- evinda
- · Replies 29 ·
Find an equation of the line that is perpendicular to x - y + 2 = 0
- mathdad
- · Replies 5 ·
High School Difference between zero and identically zero
- PrathameshR
- · Replies 12 ·
Why does water become more acidic at higher temperatures?
- markosheehan
- · Replies 5 ·
How Do You Find the Equation of a Line Through a Point and a Circle's Center?
- mathdad
- · Replies 6 ·
Why is the letter m used for slope instead of s?
- mathdad
- · Replies 3 ·
Prove a Polynomial has no real roots
- lfdahl
- · Replies 4 ·
A Parallel Line Passing Through (-3, 4)
- mathdad
- · Replies 6 ·
High School Writing formulas that distinguish positive and negative sums
- serbring
- · Replies 2 ·
How can I find the equation of a line given its x-intercept and y-intercept?
- mathdad
- · Replies 10 ·
Finding a line equation given a point and y-intercept
- mathdad
- · Replies 5 ·
Finding the Equation of a Line Given a Point and Slope
- mathdad
- · Replies 2 ·
Equation of Circle in Standard Form
- mathdad
- · Replies 6 ·
Why Does the Square Root of a Squared Algebraic Term Equal the Term Itself?
- mathdad
- · Replies 10 ·
Circle centered at (3,5) passing through the origin
- mathdad
- · Replies 5 ·
Prove that the radius of the incircle of △ is rational
- lfdahl
- · Replies 2 ·
What is the perimeter of triangle ABC?
- mathdad
- · Replies 13 ·
Finding the Equation of a Tangent Circle with Center (3,5)
- mathdad
- · Replies 2 ·
High School Why Is My Quadratic Equation Conversion Incorrect?
- SunnyBoy123
- · Replies 3 ·
Equation and Point Check for Circle of Radius 1
- mathdad
- · Replies 1 ·
How Old Is John Now?
- mathdad
- · Replies 2 ·
Physics-Using vectors to find the components
- cbarker1
- · Replies 1 ·
Rational trigonometric expression show tan^218°⋅tan^254°∈Q
- lfdahl
- · Replies 2 ·
Powerful equation 5^m+7^n=k^3.
- lfdahl
- · Replies 7 ·
What is Kayleen's current age if she will be four times older in 20 years?
- mathdad
- · Replies 6 ·
Equation for total cost when card prices increase by 20 units each
- Colt1229
- · Replies 4 ·
Undergrad Simplifying i to the power of i
- Leo Authersh
- · Replies 18 ·
How Old is Bill Crowe Today Based on the Given Age Problem?
- mathdad
- · Replies 2 ·
How much would Mrs. Baker pay for 8 pounds of bananas?
- mathdad
- · Replies 5 ·
What is the cost of ten bananas and ten pears?
- mathdad
- · Replies 13 ·
Undergrad Finding formula for nth term in sequence
- JimbleJambler
- · Replies 4 ·
Calculate Equilibrium Constant of 2BrCl <=> Br2 + Cl2
- markosheehan
- · Replies 3 ·
Gay-Lussac's Law of combining volumes
- markosheehan
- · Replies 2 ·
High School Understanding Negative Exponents and Bases in Algebraic Expressions
- DS2C
- · Replies 7 ·
Insights How to Tell Operations, Operators, Functionals, and Representations Apart
- fresh_42
- · Replies 24 ·
Can you find the two numbers?
- mathdad
- · Replies 11 ·
Optimizing wood board cutting to minimize waste
- droobilicious
- · Replies 4 ·
Solve the equation 8x^2−2xy^2=6y=3x^2+3x^3y^2
- lfdahl
- · Replies 4 ·
We can find 3 scholars talking together (using one common language)
- Albert1
- · Replies 3 ·
Graduate How did Saccheri prove Euclid's Fifth Postulate?
- diogo_sg
- · Replies 6 ·
Questions regarding writing equations when given graphs
- mikea2424
- · Replies 3 ·
Violet's Trigonometry Questions via Facebook
- Prove It
- · Replies 2 ·
Uniform rods and disk in static equilibrium
- markosheehan
- · Replies 11 ·
High School Does anybody write any operations differently?
- Thinkaholic
- · Replies 11 ·
Evaluate f(r1+1)·f(r2+1)·f(r3+1) for roots of x³+20x-17
- lfdahl
- · Replies 10 ·
High School Is it correct to think of cube volume as area times layers?
- McFluffy
- · Replies 7 ·
What is that indicator/math symbol?
- Arup Biswas
- · Replies 14 ·
High School Interview with Karen E. Smith (Mathematician at U-M)
- fresh_42
- · Replies 3 ·
S10.03.25 Write complex number in rectangular form
- karush
- · Replies 3 ·
Undergrad Arm reaching algorithm determine angles
- kolleamm
- · Replies 3 ·
Find All Trig Functions of Gamma Given cot(gamma)=4/3
- dora1
- · Replies 1 ·
High School What does the Ramanujan Summation of ζ(−1) = −1/12 represent precisely?
- Leo Authersh
- · Replies 9 ·
High School Is the Rotation Method Accurate for Drawing an Archimedean Spiral?
- person123
- · Replies 14 ·
Find the minimum a^4+b^4+c^4−3abc
- lfdahl
- · Replies 2 ·
The distance from AB = BC. AB = x^2 and BC = 9. Find AC.
- mathdad
- · Replies 3 ·
High School The Square of the Sum Formula and real world scenarios
- DS2C
- · Replies 3 ·
Prove that n is not divisible by 105.
- lfdahl
- · Replies 3 ·
Undergrad Is my classification of transcendental correct?
- JustinzCruiz
- · Replies 7 ·
Undergrad Are there any other occurrences of these interesting equalities?
- Terry Coates
- · Replies 5 ·
Find Min Value of Expression: $\prod_{i=1}^{2017}x_i$
- lfdahl
- · Replies 2 ·
Calculating On-Costs: USD 10 Gross Salary
- gibbon85
- · Replies 1 ·
Simplify 3/4[5/6(-18/25) + 1/2]
- TheDoctor
- · Replies 9 ·
Prove weighted sum of squares is at most 1 for ordered positive terms
- lfdahl
- · Replies 8 ·
We can find two irrational numbers x and y to make xy rational,true or false
- Albert1
- · Replies 4 ·
Graduate Find positive integer solutions to a/(b+c)+b/(a+c)+c/(a+b)=4
- mfb
- · Replies 1 ·
High School What does the notation in measuring the spins of two electrons mean?
- mieral
- · Replies 1 ·
Can You Prove the GCD Inequality for Natural Numbers?
- lfdahl
- · Replies 2 ·
High School Visual Pattern Recognition Test
- asmani
- · Replies 8 ·
High School What's the difference? "Types" of Algebra, etc
- DS2C
- · Replies 7 ·
News RIP Mathematician Maryam Mirzakhani
- Greg Bernhardt
- · Replies 5 ·
How Does Dilute Sulfuric Acid Affect the Titration of Ammonium Iron(II) Sulfate?
- markosheehan
- · Replies 1 ·
Prove that sum of cos/sum of sin ≥ 3 given constraint
- lfdahl
- · Replies 3 ·
Solve $\sin(\alpha + \beta)$: Answer #41
- karush
- · Replies 5 ·
When is 1444...4 a perfect square?
- lfdahl
- · Replies 11 ·
Graduate Relation between Sparse Primes and Curse of Dimensionality?
- FallenApple
- · Replies 4 ·
Terminal side in quadrant III parallel to 3x+4y=12
- Sirmeris1
- · Replies 1 ·
Construct a segment x satisfying the equation :1/x−2/a+3/(x+a)=0
- Albert1
- · Replies 7 ·
Undergrad What does"double-infinities" mean?
- Nipon Waiyaworn
- · Replies 10 ·
Graduate Do Sci-Hub Downloads Correlate with Citations in INSPIRE-HEP Data?
- arivero
- · Replies 3 ·
Can 16 Players Have 6 Partners Each in a Circular Interaction?
- Aavar
- · Replies 1 ·
Find n in A=(108.5)^n+(147.5)^n
- Albert1
- · Replies 2 ·