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.
Threads
Why does x = -1 fail to satisfy x - √((x+2)²) = 0?
- terryds
- · Replies 12 ·
How Do Hadamard Matrices Relate to Identity Matrices?
- Sebastian Martinez
- · Replies 2 ·
Probability question on buckets and balls
- Amine_prince
- · Replies 9 ·
Finding a^16 + b^16 + c^16 for roots of x^3 - x + 1 = 0
- terryds
- · Replies 14 ·
How do you solve x + y + 3 = 2√(x - 1) + 4√(y - 1)?
- gede
- · Replies 16 ·
What percentage of students take French at Madison High School?
- zak100
- · Replies 1 ·
Disjunctive Normal form to Combinatorial Circuit
- Kingyou123
- · Replies 3 ·
Function continuous on (0,1) with two values on [0,1]
- The Subject
- · Replies 4 ·
How to find the inverse of a function
- Kupkake303
- · Replies 9 ·
Counting problems: dancing couples & books and children
- member 587159
- · Replies 7 ·
What Is the Probability That Exactly 3 Out of 8 Children Are Girls?
- thegreengineer
- · Replies 2 ·
Limit problem (by definition I think)
- terryds
- · Replies 4 ·
Conditional probability with 3 dice summing to 10
- Rampart
- · Replies 4 ·
Difference between two statements
- Jingfei
- · Replies 5 ·
How do I find the area of a Quadrilateral?
- zak100
- · Replies 16 ·
Trigonometric equation sin(x) = C*sin(y)
- anachin6000
- · Replies 1 ·
Why does this sorting algorithm properly sort the array?
- TheMathNoob
- · Replies 12 ·
Linear equations algebra based problem
- zak100
- · Replies 13 ·
Statistics and Maple: Constructing a Team of 4 from 3 Groups"
- Mathman2013
- · Replies 1 ·
Average Speed With Ambiguous Distance/Time
- onemic
- · Replies 7 ·
Integer points in the interior of a triangle with vertices (0,0), (0,41), (41,0)
- vijayramakrishnan
- · Replies 3 ·
Number of ways that seven toys can be distributed
- NihalRi
- · Replies 4 ·
Proving nested partitions form a partition of the original set
- Jairo Rojas
- · Replies 5 ·
Induction Proof for 2^n x 2^n Matrix Using L Transformation
- Jairo Rojas
- · Replies 4 ·
Proving A ∪ (∩Bi) = ∩(A ∪ Bi) with infinite sets
- Jairo Rojas
- · Replies 7 ·
Sine function in equation issue
- Einstein's Cat
- · Replies 13 ·
Absolute function into piecewise function
- Astraithious
- · Replies 6 ·
How do I calculate inverse trig functions?
- Alanay
- · Replies 6 ·
Finding Angle of Inclination With a Given Slope
- onemic
- · Replies 3 ·
What is the Probability of a Loaded Die?
- Kingyou123
- · Replies 2 ·
Proving cos3θ - cos7θ/sin7θ + sin3θ ≡ tan2θ and cos3θ ≡ 4cos³θ - 3cosθ
- Enochfoul
- · Replies 4 ·
Finding the focus of a parabola given an equation
- BlueQuark
- · Replies 4 ·
How does one solve these numerically?
- goonking
- · Replies 10 ·
Solving cos 2θ = sin θ and sin 2θ - 1 = cos 2θ
- Enochfoul
- · Replies 2 ·
Probability that 3 yellow and 7 blue marbles have no adjacent yellows
- member 587159
- · Replies 7 ·
Solving cos(θ)^x+sin(θ)^x=1 for x: How many real solutions exist?
- vijayramakrishnan
- · Replies 4 ·
How Can I Master Complex Counting Problems Involving Multiple Principles?
- member 587159
- · Replies 2 ·
How many cats remained after women in West Cornwall lost sacks and cats?
- Natasha1
- · Replies 8 ·
Find angle ABC in rhombus ABDF with equilateral triangle ACE
- Natasha1
- · Replies 24 ·
Infinite series related interest question
- Zacarias Nason
- · Replies 13 ·
Algebraic Proof for x in a Right Triangle: PS, SR, and RP on a Straight Line
- Natasha1
- · Replies 6 ·
Proving trigonometric identities in a belt and pulley proble
- Terrell
- · Replies 6 ·
Finding total investment, average drop, and number of new shareholders
- Natasha1
- · Replies 9 ·
What is the Relationship Between Probabilities of Independent Events?
- erisedk
- · Replies 7 ·
Finding probability of at least one event with symmetric conditions
- erisedk
- · Replies 10 ·
Ideal Straight Line - instrumentation HND
- cps.13
- · Replies 4 ·
Angle between two straight lines
- arpon
- · Replies 5 ·
Finding total distance on a position vs time graph
- physicsnerd26
- · Replies 4 ·
Problem with length difference through circle
- MarkCJ
- · Replies 13 ·
Statistical significance of a 30 Hz peak in Fourier spectra
- rnielsen25
- · Replies 2 ·
Maxima and minima and finding the radius of the circle
- Matejxx1
- · Replies 4 ·
'Mathematically Similar' Question
- zeldaspurpose
- · Replies 9 ·
All possible planes, given two points
- The Subject
- · Replies 7 ·
How to represent this complex number?
- Elvis 123456789
- · Replies 18 ·
How to go from a*cosx + b*sinx TO A*cos(wt - phi)?
- Elvis 123456789
- · Replies 3 ·
Matrices and Systems of Linear Equations
- DiamondV
- · Replies 11 ·
Matrix homework problem due Monday
- zeldaspurpose
- · Replies 6 ·
Finding two-digit and four-digit numbers where a² = b when digits increase by one
- dirk_mec1
- · Replies 11 ·
How do I graph -66/-99 from -12/11 x 10 + 54/11?
- Alanay
- · Replies 9 ·
Does the line lie in the plane?
- The Subject
- · Replies 1 ·
Infinite solution to system with no free variables?
- CynicusRex
- · Replies 13 ·
Which order for matrix equation A = CB(B^-1)?
- DiamondV
- · Replies 7 ·
Find Vector \overrightarrow{B_1B} for Triangle ABC
- gruba
- · Replies 2 ·
Finding perpendicular vector in a skewed coordinate system
- AllenFaust
- · Replies 4 ·
Probability of 3 White, 2 Tan, 1 Pink, 1 Yellow, 2 Green
- PsychonautQQ
- · Replies 3 ·
Water droplet coalescence - prove S < S1 + S2
- bioinformaticsgirl
- · Replies 32 ·
Finding a basis for the range space
- Janiceleong26
- · Replies 2 ·
Probability -- traffic lights (1. R=0.4, 2. R=0.5, 2x G=0.2)
- CynicusRex
- · Replies 10 ·
Find the equation of the line by using vectors
- TheMathNoob
- · Replies 2 ·
Computing the shape of the Earth as seen by a camera
- Thomas Kundera
- · Replies 20 ·
Limit Question using first principles
- Jamesaa1234
- · Replies 13 ·
Inverse of an upper triangular matrix with 1s on diagonal
- Telemachus
- · Replies 12 ·
Evaluating lim_{x→2} tan(2-√(2x))/(x²-2x)
- gede
- · Replies 35 ·
Simplifying three trig expressions with tan, cot, and csc
- Cosmic-Kat
- · Replies 17 ·
Hyperbola: define epicenter word problem
- ducmod
- · Replies 2 ·
Partial Fractions with Ugly Coefficients
- AntSC
- · Replies 14 ·
How do you find the size of a matrix product?
- DiamondV
- · Replies 4 ·
Probability of choosing white balls: why count distinguishable or identical balls?
- Titan97
- · Replies 10 ·
Solving exp(-xπ/√(1-x²)) = 0.1 for x
- Captain1024
- · Replies 3 ·
Recursive Algorithm, does it look correct
- Kingyou123
- · Replies 25 ·
Relative Velocity of Ball on Moving Board
- Dffgsadf
- · Replies 3 ·
Downward parabola: value of p = 1/a?
- ducmod
- · Replies 1 ·
Absolute value inequality with exponential form solution set
- diredragon
- · Replies 13 ·
Boat crossing river at angle to reach directly opposite shore
- Giu1iano
- · Replies 6 ·
Probability of Guessing game outcome
- Destroxia
- · Replies 3 ·
Number of functions such that f(i) not equal to i
- Titan97
- · Replies 7 ·
Is the relation a/b = c/d transitive and symmetric?
- Kingyou123
- · Replies 7 ·
Comparing torus and sphere volume and surface area at nanoscale
- Quinn Pochekailo
- · Replies 4 ·
Which functions are missing from {1,2,3} to {a,b} and why?
- Kingyou123
- · Replies 4 ·
Proving a set identity with a Venn diagram
- Kingyou123
- · Replies 6 ·
Finding equation with zeroes and max value
- Drake M
- · Replies 6 ·
Solving -25FCosα + 1.5FSinα= -80 with Trigonometric Identities
- Esas Shakeel
- · Replies 8 ·
What is the correct 6-bit 2's complement representation of -32?
- TheMathNoob
- · Replies 6 ·
Simplifying Radical Expressions
- Marcin H
- · Replies 1 ·
Given: parallelogram and right angle; Prove: parallelogram
- Joodez
- · Replies 4 ·
Determine the Set of Points at Which the Function is Continu
- cosmos42
- · Replies 5 ·
Ax+by=c is a straight line. When b=0 then it is // to y-axis
- CynicusRex
- · Replies 6 ·
Contour map of the function showing several level curves
- cosmos42
- · Replies 3 ·
Finding constants a and b so limit exists with absolute values
- steven cheung
- · Replies 12 ·
Induction Proof Help: Understanding Equations for Homework | Prof. Note's Tips
- Kingyou123
- · Replies 8 ·