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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Proving rational plus irrational is irrational
- lokisapocalypse
- · Replies 5 ·
Is There a Solution for Trigonometric Equations with 1+cosx and sin^2x?
- zorro
- · Replies 2 ·
Find the extremities of latus rectum of the parabola
- rajatgl16
- · Replies 9 ·
How can I simplify this expression without using a calculator?
- zorro
- · Replies 7 ·
Probability question - Binomial distribution
- thereddevils
- · Replies 2 ·
Maximizing u(x, y) = x^α * y^β subject to Ax + By = m
- Gekkoo
- · Replies 3 ·
Solving a Mass Supported by a Spring: Explaining Assumptions
- laura11
- · Replies 11 ·
Angular and Linear Motion problem
- stf
- · Replies 5 ·
What Is the Correct General Solution for the Equation sin(x)sin(y) = 1?
- zorro
- · Replies 1 ·
How can complex numbers be expressed with a real denominator?
- patm95
- · Replies 6 ·
Problem with solving an equation
- Parashurama
- · Replies 3 ·
Eliminate the parametercartesian coordinates
- Null_
- · Replies 5 ·
Find the real zeros of the function algebraically
- swatmedic05
- · Replies 4 ·
Proving Acosx+Bsinx=√(A²+B²)sin(x+α)
- blue mango
- · Replies 8 ·
Simplifying 6cosθ/(2sinθ-3cosθ)
- tatiana_eggs
- · Replies 1 ·
Statistics linear transformation rescale
- bcahmel
- · Replies 2 ·
What Defines Isomorphism in Different Mathematical Structures?
- sihaia
- · Replies 1 ·
How do you square the square root of x over 2x?
- dustinj.11
- · Replies 2 ·
How many times does the pulsar rotate in 30.0 days?
- praecox
- · Replies 4 ·
Volume of a partially full fuel tank
- Tregg Smith
- · Replies 5 ·
Finding the Intersection Of 2 Equations (difficult)
- themadhatter1
- · Replies 7 ·
Can all of Rn be a subspace of itself?
- nobahar
- · Replies 3 ·
Finding the Inverse of a Sum of Matrices
- CentreShifter
- · Replies 4 ·
Fitting monthly temperature data to a sine equation
- SvenHoly
- · Replies 3 ·
Can Motion Exist Without Force?
- r-soy
- · Replies 11 ·
Solving Inverse Functions in Electric Charge Equations
- Null_
- · Replies 2 ·
How many unique ways are there to arrange 5 people around a circular table?
- jgens
- · Replies 2 ·
Solution to Cauchy's Identity Problem #20
- raj4u
- · Replies 1 ·
How Do You Solve Composite Inverse Functions?
- kings13
- · Replies 7 ·
Can a function really have no critical points?
- GreenPrint
- · Replies 1 ·
Q5 - Equations with an additonal restricted variable
- ExamFever
- · Replies 7 ·
Q4 - Arithmetic and Geometric series
- ExamFever
- · Replies 6 ·
How can equations solve these two word problems?
- ExamFever
- · Replies 4 ·
Q1 - Equation with fractional and logarithmic exponents
- ExamFever
- · Replies 26 ·
Q6 - Some Trigonometry questions
- ExamFever
- · Replies 6 ·
Equation of circle in quarter/half of a circle
- TsAmE
- · Replies 2 ·
Paytons' 15-Year 9% FRM Mortgage Payment Calculation
- amanda_
- · Replies 3 ·
Relative velocity between two bodies
- gkraju
- · Replies 2 ·
Resultant direction of aircraft
- gkraju
- · Replies 2 ·
Finding the domain of a composite function gf(x)
- thereddevils
- · Replies 4 ·
What does it mean to be simple
- GreenPrint
- · Replies 7 ·
What values satisfy this equation: ((2x-7)/(x3+3))<(9/x)<=x²-5x+9?
- andreynr6
- · Replies 3 ·
Simplify using Factoring after Quotient Rule
- Econguy
- · Replies 3 ·
Finding arg(iz) when z = 2 - i
- patm95
- · Replies 7 ·
What is the formula for finding the distance between two parallel planes?
- james_j_j
- · Replies 5 ·
Finding the second derivative of exp(-√(ms)/2t·x²)
- Jenkz
- · Replies 5 ·
Proving E((1+sqrt(3))(2n+1)) = (1+sqrt(3))(2n+1) - (sqrt(3)-1)(2n+1)
- penguin007
- · Replies 2 ·
Find all integers n for which this fraction is an integer
- mr.green717
- · Replies 3 ·
Simplifying Exponential Expressions: x^b/x or x^(b-1)?
- GreenPrint
- · Replies 2 ·
On the properties of non-commutative groups
- SrEstroncio
- · Replies 2 ·
How Do You Calculate Resultant Displacement and Direction in Vector Problems?
- r-soy
- · Replies 7 ·
Calculate the value of x, y and z
- Greychu
- · Replies 3 ·
Hiking Adventure: 25km SE and 40km N of East!
- r-soy
- · Replies 2 ·
Q2 - Inequality with fractions
- ExamFever
- · Replies 13 ·
Equation of a Parabola Passing Through (2,-2√2) Opening to the Right
- Immutef
- · Replies 1 ·
Radicals Within Radicals: Simplifying and Solving Equations
- ExamFever
- · Replies 6 ·
Why Did My Cubic Equation Plot as a Curve Instead of a Line?
- Kyoma
- · Replies 2 ·
Geometric Proof: Finding Angles in an Isosceles Triangle
- Sirsh
- · Replies 1 ·
One-to-one function determination
- ehrenfest
- · Replies 12 ·
Prove : (1+cosA - sinA)/(1+cosA + sinA) = secA - tanA
- equilibrum
- · Replies 9 ·
Probability of getting a 10 or a 11 when a pair of dice are rolled?
- kukumaluboy
- · Replies 1 ·
A GRE Question- Cylinder and Volume
- Roni1985
- · Replies 3 ·
Word problem - Buying houses and taxes?
- amanda_
- · Replies 4 ·
Is R an Equivalence Relation on Functions to [0,1]?
- eXorikos
- · Replies 1 ·
Prove 1³+...+n³=(1+...+n)² by induction
- Fizex
- · Replies 2 ·
Finding the minimum value of |z+4-3i| given arg(z/(1-i))=π/2
- thereddevils
- · Replies 14 ·
Probability of selling a stock higher than you bought it
- moonman239
- · Replies 1 ·
12 precalculus problems including geometry, number theory, and combinatorics
- skidmore
- · Replies 2 ·
Why Does Inverting Matrix A Fail to Solve the Equation?
- jacky_pcs
- · Replies 9 ·
Proof that a certain semigroup is also a group
- dndod1
- · Replies 2 ·
Set theory - set builder notation
- nirajnishad
- · Replies 2 ·
How Does P(n,r) / n Relate to P(n-1,r-1) in Combinatorial Proofs?
- Styx
- · Replies 15 ·
Find the sum of first 28 terms?
- nirajnishad
- · Replies 5 ·
Finding A intersection B for sets of natural numbers
- nirajnishad
- · Replies 3 ·
X,Y are polynomials of n, and n is an element of N, then
- nirajnishad
- · Replies 2 ·
Finding U-value for Wall with Plasterboard Lining and Air Gap
- bobred
- · Replies 1 ·
Simplifying sin(25°)sin(65°)/cos(40°)
- rain.
- · Replies 8 ·
Solve System of Congruences Using CRT
- needmathshelp
- · Replies 1 ·
Multiple-choice problem why is this the answer?
- IntegrateMe
- · Replies 13 ·
What was the jets speed from bangkok to tokyo
- joey813
- · Replies 8 ·
"Solving Coefficient of x^n in Binomial Expansion
- thereddevils
- · Replies 5 ·
Proving (A × B) × C using the vector triple product formula
- abrowaqas
- · Replies 2 ·
Periods of Powers of Trigonometric Functions
- Shaggy16
- · Replies 3 ·
Find Zeros of 2x^3 - 8x^2 + 9x - 9 Polynomial
- xskull
- · Replies 1 ·
How to Solve Common Terms in Two Arithmetic Sequences?
- UNknown 2010
- · Replies 3 ·
Parametric equation of line through P0(1,-1,-3) parallel to given line
- lorik
- · Replies 4 ·
In simple english what is the methods of moment estimator technique all about.
- RufusDawes
- · Replies 1 ·
Inverse Variation: Solve for y when x=5
- amanda_
- · Replies 4 ·
Solving for y: Why/How do y and e^x switch places?
- CINA
- · Replies 3 ·
What is the asympote of this graph?
- priscilla98
- · Replies 2 ·
Brain teasing problem in number theory
- sagardip
- · Replies 4 ·
Simplifying (x-5)/(x+1) to 1 - 6/(x+1)
- GreenPrint
- · Replies 5 ·
Proving Perpendicularity of DB.AC in a Tetrahedron
- Procrastinate
- · Replies 2 ·
How Is the Constant A Determined in Janine's Charcoal Absorption Data Analysis?
- amanda_
- · Replies 1 ·
Measure of the smallest angle in the triangle
- priscilla98
- · Replies 7 ·
Calculating Central Angles in Satellite Orbits
- amanda_
- · Replies 3 ·
Probability with normal distributions
- thereddevils
- · Replies 2 ·
Simplifying Expressions: 1/2 - 4/d
- priscilla98
- · Replies 5 ·
Solve sin 2θ = sin θ for 0 ≤ θ ≤ 360
- priscilla98
- · Replies 2 ·
Solving x^(1/2) - x^(-1/2) = 3/2 algebraically
- kauymatty
- · Replies 4 ·