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.
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Is my 2's complement addition correct?
- TranscendArcu
- · Replies 3 ·
Finding the equation of a plane passing through 3 points
- Luscinia
- · Replies 3 ·
Continuation of composite function problem problematic
- valmancer
- · Replies 11 ·
How Do You Solve a Composite Function Problem with Constants?
- valmancer
- · Replies 3 ·
Finding x when ED equals a sum of vectors in a parallelogram
- duldin
- · Replies 18 ·
Having trouble verifying a trig identity.
- kieth89
- · Replies 4 ·
How can I factor a polynomial with 4 unlike terms?
- EricPowell
- · Replies 1 ·
Verifying Lines are Perpendicular
- odolwa99
- · Replies 2 ·
Counting Techniques Question: Drawing 5 specific cards out of a deck
- student74
- · Replies 2 ·
Solving the inequalitites in term of x, applying rules
- rohan03
- · Replies 20 ·
Finding the equation of the intersection
- cdot9
- · Replies 1 ·
Table of value for y=2-3(5^x+4), plus its transformation from y=5^x.
- calcdummy
- · Replies 6 ·
Solving for D in a logarithmic formula
- Tweaked9107
- · Replies 9 ·
Solve a+b+c=0 given a+(1/b)=b+(1/c)=c+(1/a)
- Perpendicular
- · Replies 5 ·
Simplifying Algebraic Expression: A(Ls)
- nesan
- · Replies 1 ·
Proving Trig Identity: 1-(cos(x)+sin(x))(cos(x)-sin(x))=2sin^2(x)
- KevinMWHM
- · Replies 3 ·
What is the equation for the circle formed by the intersection of two spheres?
- songoku
- · Replies 4 ·
Raise complex number using De Moivre - integer only?
- jkristia
- · Replies 8 ·
Prove the Int<ABC is a convex set.
- LCharette
- · Replies 2 ·
Patterns found in complex numbers
- lll030lll
- · Replies 2 ·
Simplifying Algebra with power to a half
- Chapman2233
- · Replies 4 ·
Finding safety limits for tyre pressure with normal distribution
- mutineer123
- · Replies 4 ·
Roots of a polynomial and differenciaton
- babita
- · Replies 8 ·
Proof that if a polynomial has a complex zero it's conjugate is also a zero
- mindauggas
- · Replies 2 ·
If lim f(x)g(x) exists, must lim f(x) and lim g(x) also exist?
- babita
- · Replies 8 ·
Does x multiply the coefficient or the radicand in x·4√6?
- DPXJube
- · Replies 3 ·
Crossed belt connecting 20-cm and 40-cm pulleys
- Marioqwe
- · Replies 5 ·
Setting area = perimeter of rectangle, does it have any meaning?
- LearninDaMath
- · Replies 39 ·
Show that the primes of the form 4n-1 and 4n +1 are infinite
- teddyayalew
- · Replies 2 ·
So I am having some trouble solving these equations
- mazz1801
- · Replies 1 ·
Partial fraction decomposition of 1/x(x²+1)²
- theintarnets
- · Replies 5 ·
Does this set of polynomials form a vector space?
- spaghetti3451
- · Replies 2 ·
Where else can you start and return by walking one mile south, east, and north?
- analyzer
- · Replies 12 ·
Sum of fractions with consecutive factors 2/(n(n+1)(n+2))
- theintarnets
- · Replies 3 ·
Calculating Distance and Speed: Solving a Robert Service Question
- richezzy
- · Replies 6 ·
A difficult (for me) 3d shapes problem
- ydan87
- · Replies 5 ·
What Are Some Fascinating Plant Facts Related to 45-Degree Angles?
- e^(i Pi)+1=0
- · Replies 30 ·
Question on permutation and combination(girls and boys standing in a line)
- mutineer123
- · Replies 9 ·
Work and energy problem feedback
- gbaby370
- · Replies 3 ·
Proof of a corollary of fundamental theorem of algebra
- mindauggas
- · Replies 13 ·
Optimisation and best use of space
- jendrix
- · Replies 3 ·
Isomorphic group needed for cayley table
- jackscholar
- · Replies 6 ·
How Do You Solve a Complex Polynomial and Trigonometry Problem?
- songoku
- · Replies 2 ·
What is the domain and range of y=-0.7x+1.9 and y=0.7x+1.9?
- milliex51
- · Replies 3 ·
Probability of teenager with part time job and college plans
- kenny1999
- · Replies 6 ·
Conversion of a trigonometic function
- frensel
- · Replies 3 ·
But the answer is supposed to be 120.Can you explain why?
- mutineer123
- · Replies 4 ·
Hard conceptual probability problem
- kenny1999
- · Replies 15 ·
Solving 4log45 Logarithmic Problem
- d.smith292
- · Replies 18 ·
What is the Correct Equation for Pn and Qn in Permutation and Combination?
- nik jain
- · Replies 1 ·
Solve Inequality Laws for x in Spivak's Calculus
- Gamerex
- · Replies 7 ·
Surface Area of Hollowed Hemisphere - Basic Geometry
- anniecvc
- · Replies 2 ·
Creating a Realistic Cat Drawing Using Functions on a Graphing Calculator
- naskas
- · Replies 1 ·
Proof that a polynomial is a factor
- mindauggas
- · Replies 8 ·
Equations for 3D Cylinders with Varying Parameters
- ydan87
- · Replies 2 ·
Finding the minimum of an unknown function by the least amount of tries
- NickF
- · Replies 14 ·
Can You Be Half Someone's Age More Than Once?
- KingBigness
- · Replies 2 ·
How do you prove this Trig identity?
- physicsdreams
- · Replies 7 ·
Absolute value removed from equation. Why?
- jens.w
- · Replies 9 ·
Powers w/Rational Exponents: Evaluate (Review My Work)
- calcdummy
- · Replies 3 ·
Common perpendicular of two lines
- ydan87
- · Replies 4 ·
Find Equation of Elipse with b=3, M(-2SQRT(5),2)
- Government$
- · Replies 1 ·
Finding the 4661st permutation of {1,2,3,4,5,6,7}
- toli
- · Replies 8 ·
{vectors}find the position vector of this
- niekehecv
- · Replies 4 ·
Solve for XYZ: Permutation of 21600 - Positive Integral Solutions
- nik jain
- · Replies 1 ·
I always hate this - combination / permutation
- kenny1999
- · Replies 7 ·
Analytic Geometry World Problem
- S.R
- · Replies 3 ·
Irrational power of an irrational number
- analyzer
- · Replies 5 ·
Understanding 'e' in the Compound Interest Formula for Students
- d.smith292
- · Replies 4 ·
Finding the inverse of f(x)=2x³+3x+2
- srfriggen
- · Replies 2 ·
Arranging a fraction to simplify it
- LearninDaMath
- · Replies 5 ·
Integration by completing the square
- luigihs
- · Replies 3 ·
3D Vectors Problem - Find Cross Product
- TheSerpent
- · Replies 1 ·
Help solving a precalculus problem for my son
- Proclivitas
- · Replies 3 ·
Matrices, Proof and Eigenvalues.
- chris_avfc
- · Replies 4 ·
Simple rearranging of an equation
- smulc
- · Replies 8 ·
The domain of a function in interval notation
- nightshade
- · Replies 7 ·
Conditional probability in distributing 7 balls in 7 cells given 2 empty cells
- jfierro
- · Replies 2 ·
Explicit form to parametric form
- ydan87
- · Replies 2 ·
Combinatorics problem: find a number of 5 digits
- Freyja
- · Replies 12 ·
Is P(A-B) = P(A) -P(B)Here p is the probability function
- crotical
- · Replies 4 ·
Monty Hall problem with biased host door selection
- superconduct
- · Replies 2 ·
Completing the square 2 variables
- p75213
- · Replies 2 ·
Equation with x,y as exponential functions
- cng99
- · Replies 21 ·
Solving 2n·logn = 0.1·n² for n
- mycrafish
- · Replies 3 ·
Discrete uniform distribution prrof
- synkk
- · Replies 1 ·
Sum of Squares of Roots of quadratic equations.
- the-ever-kid
- · Replies 10 ·
Terrible conditional probability problems
- kenny1999
- · Replies 1 ·
Probability partner is good-looking given one partner is
- kenny1999
- · Replies 4 ·
Two coplanar lines and finding the equation
- gundamshadow
- · Replies 9 ·
A problem I should be able to solve (geometry)
- silenzer
- · Replies 3 ·
Determining magnitude and direction of vectors
- savva
- · Replies 3 ·
How can I prove that n/(n+1) = 1-[1/(n+1)]?
- red_hockey
- · Replies 3 ·
Finding equation of line perpendicular to given line in 3D
- gundamshadow
- · Replies 1 ·
Understanding Percentage Growth in Price Changes
- xeon123
- · Replies 7 ·
Finding bicycle wheel RPM from speed and diameter
- Soda
- · Replies 2 ·
How do I solve T - log(T) = 1 - R for T?
- sj21
- · Replies 1 ·
Prove if set A is a subspace of R4
- I Like Pi
- · Replies 17 ·
Graph Sketching and Proving Restrictions on a Real Function's Range
- spaghetti3451
- · Replies 1 ·
Cramer's Rule and Determinants
- Deagonx
- · Replies 1 ·