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
Finding B/A when dividing two matrices with complex determinant
- patric44
- · Replies 10 ·
Is the length of a day actually increasing by 0.21 seconds?
- JC2000
- · Replies 12 ·
What is the optimal communication time for a given set of parameters?
- zak100
- · Replies 9 ·
Trying to understand transitive relations
- r0bHadz
- · Replies 2 ·
Algebraic fraction simplification steps
- Anarcho
- · Replies 13 ·
A straight line in the complex plane
- rajeshmarndi
- · Replies 4 ·
How do you solve this equation used to calibrate an ammeter?
- rexxii
- · Replies 6 ·
Is There a Universal Standard for Order of Operations in Mathematics?
- chwala
- · Replies 24 ·
Simplifying fractional indices
- umzung
- · Replies 2 ·
Averaging oscilloscope traces (statistics)
- roam
- · Replies 3 ·
Rod resting on a cylinder, find mu
- resurgance2001
- · Replies 4 ·
Why do 2 lines separate the plane into different numbers of regions?
- r0bHadz
- · Replies 4 ·
Is my Proof Valid for Bijection of Finite Sets?
- sleepingMantis
- · Replies 15 ·
Are (X+Y) and (X-Y) independent?
- r0bHadz
- · Replies 14 ·
Probability: distribution, cumulative distribution
- Robin04
- · Replies 6 ·
Proof by Induction: Arithmetic Sum
- sleepingMantis
- · Replies 9 ·
Solve Math Problems: Find Functions Easily
- Mitza
- · Replies 4 ·
Are my calculations of the pregnancy ratio of the population correct?
- caters
- · Replies 1 ·
Implications of zero in the denominator when solving equations
- JC2000
- · Replies 6 ·
Half Angle Formula for Tangent
- sleepingMantis
- · Replies 15 ·
What is the reason behind alternate answers to a locus problem.
- JC2000
- · Replies 3 ·
Finding P(N=1|N+S=2) from a joint probability table
- theone
- · Replies 6 ·
Example Required: Matrix Solution By Dividing into Quadrants
- zak100
- · Replies 8 ·
Am I understanding horizontal shift properly?
- r0bHadz
- · Replies 3 ·
How Do You Calculate the Axes of a Hyperbola Given Its Foci and a Point on It?
- charlie05
- · Replies 7 ·
Solving a system of two simultaneous trigonometric equations
- Jeroen Staps
- · Replies 14 ·
What is the recurrence relation for climbing stairs with 1 or 2 steps at a time?
- r0bHadz
- · Replies 5 ·
Describing an object made by the intersection of 2 surfaces
- EEristavi
- · Replies 17 ·
Probability exactly 1 damaged luggage is insured of 4 sampled
- theone
- · Replies 12 ·
Particle position x = 6.00 - 7.00t² stopping time and origin crossing
- fahadff
- · Replies 2 ·
Calculating Joint Probability Mass Function for Two Dice Toss
- r0bHadz
- · Replies 12 ·
For what m is the complex number $(\sqrt 3+i)^m$ positive and real?
- Santilopez10
- · Replies 5 ·
Distinguishing between angular bisectors
- JC2000
- · Replies 3 ·
Extrapolating data points using models
- roam
- · Replies 6 ·
Find an expression for the height of this frustum
- Natasha1
- · Replies 18 ·
Finding the Parameters for the Curve y=asin(x-b)+c
- Natasha1
- · Replies 11 ·
Proving three points are collinear using vectors
- Natasha1
- · Replies 11 ·
Find an equation of a line of symmetry in the form px+qy = r
- Natasha1
- · Replies 3 ·
Probability - Playing a Game with Two Fair Spinners
- Natasha1
- · Replies 6 ·
Solving a trigonometric equation for the angle
- QuarkDecay
- · Replies 3 ·
Find the area of the shaded region as a ratio to the area of the square
- chwala
- · Replies 7 ·
Prime numbers and divisibility by 12
- Philip Robotic
- · Replies 5 ·
Solve Word Problem: 30 Persons in 4 Days = 40 Persons in x Days
- alijan kk
- · Replies 6 ·
Finding OA in Triangle Geometry
- Leo Consoli
- · Replies 9 ·
Curiosity about why this is not a Function composition
- ecastro
- · Replies 7 ·
Birthday problem (probability)
- r0bHadz
- · Replies 9 ·
Probability of 2 Defective Laptops Among 6 Purchased
- r0bHadz
- · Replies 4 ·
Graphs, functions, and coordinates
- PhysicS FAN
- · Replies 2 ·
Calculating the dimension of intersection of two matrices
- Mutlu CELIKKOL
- · Replies 7 ·
Can You Solve This Proof Involving Inequalities and Negations?
- ForceBoy
- · Replies 10 ·
Convergence of a series given in non-closed form
- Entertainment Unit
- · Replies 2 ·
Trig function equation: d=4(sin5t-4cos6t)
- cpyykkonen
- · Replies 12 ·
Formulas for Rotation and Translation
- JC2000
- · Replies 16 ·
Abs Value Inequality with a Squared Term
- opus
- · Replies 4 ·
Probability that both are defective
- r0bHadz
- · Replies 7 ·
Why does union of events mean A or B, not A and B?
- r0bHadz
- · Replies 6 ·
Prime factors of a unique form in the each term a sequence?
- musicgold
- · Replies 2 ·
Ways to arrange four men and five women with groups standing together
- r0bHadz
- · Replies 7 ·
Prove that a set of positive rational numbers is countable
- r0bHadz
- · Replies 24 ·
Legacy puzzle - elegant approach?
- musicgold
- · Replies 6 ·
Why does the binary system solve the coin denomination problem?
- musicgold
- · Replies 2 ·
Uncertainty - Reynolds number and the friction factor
- Joon
- · Replies 10 ·
Prove that the product of any three consecutive integers is
- r0bHadz
- · Replies 11 ·
Number of ways to choose a pair of distinct number
- songoku
- · Replies 5 ·
Solving Linear Algebra Problem 8: Gauss-Jordan Method
- cookiemnstr510510
- · Replies 3 ·
Solving a System of Equations via the Matrix Method
- EEristavi
- · Replies 9 ·
Is ceil(n/k) equal to floor((n-1)/k) + 1 for positive integer values of n and k?
- r0bHadz
- · Replies 2 ·
A proof for modular arithmetic theorem
- r0bHadz
- · Replies 7 ·
So, ##f(1) = -1~.##How can I find the value of f(1)
- YoungPhysicist
- · Replies 12 ·
Solving for t in compound interest formula with annuity
- ikihi
- · Replies 1 ·
Exponential function with negative base
- r0bHadz
- · Replies 4 ·
Probability of at least two happening
- r0bHadz
- · Replies 5 ·
Bayes' Theorem and a car starting probability
- CivilSigma
- · Replies 5 ·
How Do You Calculate the Probability of No Events Occurring?
- r0bHadz
- · Replies 3 ·
Find the inverse function of ##f(x) =x^4+2x^2##
- YoungPhysicist
- · Replies 11 ·
Prove or disprove that there is a rational number x and an i
- r0bHadz
- · Replies 5 ·
Prove there exists a consecutive pair of ints
- r0bHadz
- · Replies 2 ·
Write ##5-3i## in the polar form ##re^\left(i\theta\right)##
- Mutatis
- · Replies 9 ·
Proof that r³+r+1=0 has no rational solutions
- r0bHadz
- · Replies 12 ·
Is my proof by contradiction valid?
- r0bHadz
- · Replies 10 ·
Determine whether a logarithmic function is odd or even
- YoungPhysicist
- · Replies 11 ·
Two teams, A and B, are playing a series of games
- coolusername
- · Replies 14 ·
Can Bernoulli's Inequality Be Proven for All Real Numbers?
- r0bHadz
- · Replies 14 ·
Does Simplex work for all standard-max problems?
- Ben2
- · Replies 19 ·
Proving the Irrationality of Square Root of 3
- r0bHadz
- · Replies 21 ·
Find the function that matches the equation
- YoungPhysicist
- · Replies 9 ·
Prove A contains all natural numbers ≥ n_0
- r0bHadz
- · Replies 6 ·
Is a+b necessarily irrational?
- r0bHadz
- · Replies 2 ·
Plane through line x=2y=3z perpendicular to 5x+4y-3z=8
- Josie Jones
- · Replies 3 ·
How fast is the edge of the yo-yo spinning in mph
- Vital
- · Replies 3 ·
Calculate the range of sizes of the particles
- Tiberious
- · Replies 3 ·
Prove the sums of the angles of any given triangle = 180°
- r0bHadz
- · Replies 12 ·
Solving for y: e^(y) = y^(2) - 2
- flyingfishcattle
- · Replies 6 ·
Prove abs(x)-abs(y) is less than or equal to abs(x-y)
- r0bHadz
- · Replies 8 ·
How to interpret a 3D line equation with zero denominators
- Krushnaraj Pandya
- · Replies 6 ·
Find all numbers x which satisfy the following inequality
- r0bHadz
- · Replies 9 ·
Express this sum as a fraction of whole numbers
- opus
- · Replies 14 ·
Deriving the Matrix for a 3 dimensional rotation
- ForceBoy
- · Replies 9 ·
Number of functions from a to b where {123} is in the range of (f)
- Dank2
- · Replies 1 ·
Why isn't the image of a segment contained in the image of the full segment?
- r0bHadz
- · Replies 1 ·