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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Mathematical Modeling: Regression
- FritoTaco
- · Replies 14 ·
Find and Sketch the Domain of a Function
- cosmos42
- · Replies 1 ·
Proving a parallelogram is a rhombus, given an Isosceles triangle
- Joodez
- · Replies 16 ·
Expand powers of binomial expressions
- 3301
- · Replies 2 ·
Finding centre of (moving) circle
- sa1988
- · Replies 5 ·
Matrix-Vector Form Write an Augmented Matrix
- cosmos42
- · Replies 4 ·
Counting Problem (ways of choosing 3 with conditions)
- mishima
- · Replies 2 ·
Adjacency matrix and probability matrix
- TheMathNoob
- · Replies 1 ·
Applying De Moivre's theorem and Euler's formula
- DiamondV
- · Replies 11 ·
Solving collision equations with trigonometric separation of variables
- zade70
- · Replies 5 ·
Finding angular frequency omega in sinusoidal function e(t) = A sin(ωt + φ)
- amsi
- · Replies 5 ·
Finding all four roots of a complex number and their arguments
- King_Silver
- · Replies 3 ·
Solve Nested Quantifiers Problem #5 - Professor's Handout
- Kingyou123
- · Replies 9 ·
Truth table for the biconditional operator
- Kingyou123
- · Replies 17 ·
Finding x and y so that Im(z²)/z² = -i
- zigzag7
- · Replies 2 ·
Prove that {x∈ℤ : 2|x} ∩ {x∈ℤ : 9|x} ⊂ {x∈ℤ : 6|x}
- lep11
- · Replies 17 ·
Combinatoric Problem: Path to [20,30]
- David Waiter
- · Replies 5 ·
Solving z + 2i·z̄ = -9 + 2i and finding the perpendicular bisector equation
- King_Silver
- · Replies 31 ·
What would be the best word to describe this behavior?
- TheMathNoob
- · Replies 3 ·
ABCD forms a rectangle. With 3 points, A,B,C, find D.
- says
- · Replies 7 ·
Probability of Cheryl Getting 2 Marbles of Same Color
- Michele Nunes
- · Replies 11 ·
I can really use a hand on finding vertex
- AstralTao
- · Replies 8 ·
Minimum decimal places needed for a fraction with denominator 2^22
- Michele Nunes
- · Replies 7 ·
Finding limits to a piecewise function (3 pieces)
- AllanW
- · Replies 7 ·
Parametric and canonical equation of the line
- says
- · Replies 2 ·
Finding common ratio and first term in a geometric series
- Banker
- · Replies 2 ·
Unit Vectors as a Function of Time?
- YoshiMoshi
- · Replies 4 ·
Understanding Exponent Multiplication: cnxn-1
- PhysicsBoyMan
- · Replies 5 ·
R^(1/2) Question, half dimension space meaning?
- YoshiMoshi
- · Replies 3 ·
Find the value of 1/cos²10° + 1/cos²20° + 1/cos²40° - 1/cos²45°
- terryds
- · Replies 22 ·
Why does (-1)^(1/2) = (-1)^(4/8) lead to a contradiction?
- davon806
- · Replies 14 ·
How Do You Calculate Projection and Symmetry in Vector Geometry?
- says
- · Replies 12 ·
Is Bernoulli's Inequality Applicable to Prove These Inequalities?
- lep11
- · Replies 8 ·
Finding smallest m where C(2015,m) is even
- davon806
- · Replies 2 ·
Quadratic and linear Intersection
- master_333
- · Replies 5 ·
Isomorphism to subspaces of different dimensions
- says
- · Replies 3 ·
Complex numbers simplification
- Mrencko
- · Replies 24 ·
Does every natural number n being even and prime imply that there is a unique n?
- cragar
- · Replies 8 ·
Advanced Vector Problem: Ships
- lowea001
- · Replies 5 ·
Finding vertices C and D of a square with A(1,2) and B(2,4)
- Julian102
- · Replies 2 ·
Sum of range of numbers divisble by 6 but not by 9
- cmkluza
- · Replies 4 ·
Graph theory (incidence matrix and linear algebra)
- TheMathNoob
- · Replies 1 ·
What Values of x Allow Convergence in a Geometric Sequence of Sine Functions?
- Matejxx1
- · Replies 16 ·
Set Theory Question: a ∩ b ⊆ a
- YoshiMoshi
- · Replies 5 ·
Graph theory proof (Unlabeled trees)
- TheMathNoob
- · Replies 12 ·
Transform General EQ Acos(wt)+Bsin(wt)
- RJLiberator
- · Replies 3 ·
Proving a Tree is a Minimally Connected Graph in Graph Theory
- TheMathNoob
- · Replies 22 ·
Radio signal range along a straight path between two cities
- HRubss
- · Replies 15 ·
Shortest Distance Between Two Latitude/Longitude Coordinates
- transmini
- · Replies 4 ·
Is (sqrt(4+x)-2)/x finite on the hyperreal numbers?
- GwtBc
- · Replies 2 ·
Proving a Cycle Exists in Finite Graphs with Degree 2+ Vertices
- TheMathNoob
- · Replies 4 ·
Mean, variance and correlation - Multinomial distribution
- AwesomeTrains
- · Replies 5 ·
Intro to abstract math—basic notation
- TyroneTheDino
- · Replies 3 ·
Watch problems gaining and losing time
- Natasha1
- · Replies 47 ·
How Do You Calculate Dot Products in Geometric Problems?
- CheesyPeeps
- · Replies 2 ·
Least squares problem: am I solving it correctly?
- Granger
- · Replies 12 ·
Find the sets of real solutions
- diredragon
- · Replies 14 ·
Trying to solve |2x-1|-|x+5|-3=0
- bonildo
- · Replies 3 ·
Does Induction Work for Proving Graph Theory Statements?
- TheMathNoob
- · Replies 11 ·
Venn diagram with 25 cars, L-plates and GB-plates
- Natasha1
- · Replies 5 ·
Solving Quadratic Equations - (x2+3x+3)1/3 + (2x2+3x+2)1/3 = 6x2+12x+8
- emrys
- · Replies 14 ·
What Is the Value of a(16) When No Two Heads Occur Consecutively in Coin Tosses?
- Cosmos
- · Replies 15 ·
Finding inverse of a Sin function (problem from Mooculus)
- Ryaners
- · Replies 6 ·
Is there only one 2-regular graph on 5 vertices?
- TheMathNoob
- · Replies 3 ·
Why is my partial fraction decomp. wrong?
- kostoglotov
- · Replies 4 ·
Find the set that contains the real solution to an equation
- diredragon
- · Replies 42 ·
Questions about linear independent and spanning set and basi
- DavidDai
- · Replies 12 ·
Linear Transformation l:R3 to R2
- says
- · Replies 9 ·
Linear Transformation: Find the matrix
- says
- · Replies 13 ·
Wall tiling with 20 cm tiles and smaller 10 cm tiles
- Natasha1
- · Replies 2 ·
Working out profits and loss from a tombola ticket sale
- Natasha1
- · Replies 4 ·
Calculating Diagonals of a Polygon: What are the Values of p and q?
- Natasha1
- · Replies 17 ·
Currency Conversion in Hobbit Land
- Natasha1
- · Replies 8 ·
Solving Triangle ABC: Finding Value of x
- Natasha1
- · Replies 4 ·
Simplifying square root of an irrational
- erisedk
- · Replies 7 ·
How Many Plain Chocolates with Soft-Centers Are in the Kiddimix Box?
- Natasha1
- · Replies 13 ·
Finding two function machines with intermediate steps
- Natasha1
- · Replies 14 ·
Find the value of TABLE from letter equations
- Natasha1
- · Replies 17 ·
Finding Davina's height with algebraic equations instead of trial and error
- Natasha1
- · Replies 12 ·
What is the height of the parabolic arch at a point 1 foot in from the base?
- ducmod
- · Replies 6 ·
Jack's Growth: From 90cm to 105cm in 1 Year
- Natasha1
- · Replies 3 ·
Running around a track (km/hr)
- Natasha1
- · Replies 1 ·
Is There a Quicker Way to Find All Possible Values of h for fh(a+bx+cx2+dx3)?
- says
- · Replies 94 ·
Critical combinatorics problem
- Julian102
- · Replies 4 ·
How to Solve the Complex Polynomial Product Equation?
- anandzoom
- · Replies 8 ·
Simplifying a fraction (block reduction, control)
- Bringitondown
- · Replies 14 ·
What is the Exponential Growth Rate of Cells under a Microscope?
- iScience
- · Replies 9 ·
Simplifying expression with vectors
- olgerm
- · Replies 14 ·
Number of Paths from O(0,0) to A(7,8) - No (3,4)
- Lilia
- · Replies 12 ·
Simplifying Fraction: (6x+12y)/(10a+5) * (100a^2-25)/(9x^2-81y^2)
- science_rules
- · Replies 8 ·
Simplifying (a+b)²/(a²-b²) times (a-b)²/(a²-b²)
- science_rules
- · Replies 1 ·
Multiplying rational expressions with polynomials
- science_rules
- · Replies 26 ·
What is the volume of the biggest piece in this geometry tetrahedron problem?
- terryds
- · Replies 9 ·
Arriving at parabola formula via distance formula
- ducmod
- · Replies 4 ·
Why does (-1)^n appear in the power series for 1/(1+(z-1))?
- Jon.G
- · Replies 3 ·
Triple scalar product of u = i + 5j - 2k, v = 3i - j, w = 5i + 9j - 4k equals 0
- Valenti
- · Replies 9 ·
Poisson Distrib.: Estimating Mean of Data Set
- aaaa202
- · Replies 4 ·
Argument of a random complex no. lying on given line segment.
- Ricky_15
- · Replies 11 ·
Inequalities of negative arguments in complex numbers
- toforfiltum
- · Replies 6 ·
How Do You Solve Exponential Inequalities Using Logarithms?
- kaspis245
- · Replies 1 ·