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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Solving for r in Geometric Sequences
- r-soy
- · Replies 2 ·
Solving the Cistern Filling Problem in 19 Hours
- 1/2"
- · Replies 2 ·
Have I done the quadratic equation correctly?
- Gringo123
- · Replies 1 ·
Solving .002x - .000001x² = .50 with the quadratic formula
- stevecallaway
- · Replies 2 ·
Finding the pattern rule for 3, 9, 81, 65, 61, 37
- Master7731
- · Replies 6 ·
Derivatives: Checking your work, how?
- winowmak3r
- · Replies 5 ·
Set theory - expression describing subset
- tsrgb
- · Replies 1 ·
Solve Log Problem: n^6 = log_2n(1944) = log_n(486√2)
- Hockeystar
- · Replies 1 ·
Probability of Prevesh Paying Three Days in a Row: Coin Toss Lunch Break
- Amy-Lee
- · Replies 3 ·
How to Prove a Trigonometric Identity
- chenny1
- · Replies 3 ·
Finding S(n-1) given Sn = n² + 2n
- shocklightnin
- · Replies 3 ·
Applications of math - Root finding
- Toby_Obie
- · Replies 5 ·
Why show intermediate steps when graphing function transformations
- sydneyfranke
- · Replies 1 ·
How to solve for x and y with Lagrange functions?
- nikk834
- · Replies 9 ·
Bayesian Inference: Prob of Dry Pavement Outside House
- zli034
- · Replies 6 ·
Make e the subject of 10b + 5be - 3e + 7c
- Gringo123
- · Replies 3 ·
Proving Linear Algebra: AB=BA for All B(2x2), A=àI for All à € Real Number
- annoymage
- · Replies 3 ·
Probability of Light Bulb Lifespan: Normal Distribution with Mean 400 Days
- recoil33
- · Replies 2 ·
Given a general probability, determining the probability in a set
- peterwilc
- · Replies 1 ·
How Can I Solve for Tau in These Two Equations?
- Mugged
- · Replies 4 ·
Solve Equation: 4x - 1/3 - 2x + 7/6 = 5/2
- Gringo123
- · Replies 1 ·
Roots and coeffecients of polynomial equations
- olee
- · Replies 15 ·
Is y = 8.8 correct for 8y - 31 = 13 - 3y?
- Gringo123
- · Replies 7 ·
How Do You Solve z^3 = sqrt(3) - i Using De Moivre's Theorem?
- Matty R
- · Replies 6 ·
Solving √3 sin θ + cos θ = 1 using the a sin θ + b cos θ = c method
- GreenPrint
- · Replies 3 ·
Probability question on permits
- BrownianMan
- · Replies 17 ·
Det(A) = det(AT) = det(−A) = (−1)^n*det(A). Hence det(A) = 0 when n is odd Why?
- RossH
- · Replies 3 ·
Trigonometric Identities Section
- Paomaui
- · Replies 1 ·
Proof by Induction: Showing AnAm = An+m
- annoymage
- · Replies 5 ·
Geometric interpretation and vector problem
- icystrike
- · Replies 2 ·
Simplest way to approximate sqrt of complex numbers
- jkg0
- · Replies 2 ·
Gaussian Elimination: Translating text into equations
- Matty R
- · Replies 3 ·
Expanding brackets with fractions
- Gringo123
- · Replies 8 ·
Why is (2 + 5)2 equal to 9 and not 49?
- Gringo123
- · Replies 7 ·
Probability of 0, 1, or 2 defective items in a binomial distribution
- markhboi
- · Replies 4 ·
Prove that (sin A sin 2A + sin 3A sin 6A)/(sin A cos 2A + sin 3A cos 6A) = tan 5A
- kenshaw93
- · Replies 4 ·
Make F the sunject of the formula
- Gringo123
- · Replies 2 ·
Chebyshev interval for stock vs bond fund returns
- cyod22
- · Replies 2 ·
Solving Hospital Room Charges: k1, k2, and Cost per Day
- santhean
- · Replies 2 ·
Smallest N Value for 4-Digit Consecutive Integers Divisible by 2010^2
- Hockeystar
- · Replies 6 ·
Simplify Exponents and Confirm with Wolfram Alpha: (54-3y)3 * (5y-2)2 Solution
- DaleSwanson
- · Replies 3 ·
Excel/MINITAB graphing - scaling the x axis
- sunfleck
- · Replies 2 ·
What is the Vector Equation of Planes?
- icystrike
- · Replies 2 ·
Properties of integers:math induction
- VanKwisH
- · Replies 6 ·
The physical meaning of the PDE?
- thepioneerm
- · Replies 6 ·
Can complex numbers be used to show a pattern in exponents?
- icystrike
- · Replies 13 ·
Expanding Brackets: Find Out Where You Went Wrong
- Gringo123
- · Replies 5 ·
How many more students are needed to raise the average SAT score to 84?
- The_Journey
- · Replies 7 ·
Would this have been marked correct?
- Gringo123
- · Replies 4 ·
Profit function for desk and bookcase production
- incoherent
- · Replies 1 ·
How to Write Powers in Text Format on Websites?
- Gringo123
- · Replies 10 ·
Solving 0.5m^4/5 = 2u^1/5 for m
- storoi1990
- · Replies 7 ·
Finding tan²(x) + cot²(x) + csc²(x) + sec²(x) when tan(x) + cot(x) = 4
- Hockeystar
- · Replies 33 ·
Drawing an Argand diagram for complex numbers
- icystrike
- · Replies 5 ·
How does the natural log method simplify for calorimetry uncertainties?
- CINA
- · Replies 7 ·
What is the correct answer for 3r - 3p + 5q if p = 4, q = -2, r = 3, and s = -5?
- Gringo123
- · Replies 2 ·
Is 2u√(um) the same as 2u^(3/2)m^(1/2)?
- storoi1990
- · Replies 12 ·
What does 'natural position' mean for a permutation?
- annoymage
- · Replies 7 ·
Imaginary number -i raised to negative power
- CE Trainee
- · Replies 3 ·
Counting Balls in Boxes: Finding Solutions with Upper-Bound on Number of Balls
- noblerare
- · Replies 4 ·
Finding an ellipse equation from 5 points for orbital prediction
- CyJackX
- · Replies 1 ·
Probability Question (Random Variables and CDF)
- swuster
- · Replies 1 ·
What Is the Probability Ralph Uses an Umbrella If Laura Does Not?
- confusedonpro
- · Replies 2 ·
How do I rotate a coordinate system by 45 degrees?
- tuanle007
- · Replies 7 ·
Solving Math Formulaes: X/5 to X-5 with Lagranges Equation
- storoi1990
- · Replies 2 ·
Estimate amount of possums in the park
- recoil33
- · Replies 2 ·
Expected Sequences in a Random Events
- AliDimayev
- · Replies 2 ·
Constructing an Argand Diagram - My First Attempt
- icystrike
- · Replies 2 ·
Linear Algebra - Eigenvector question
- zeion
- · Replies 5 ·
Do These Vector Lines Intersect or Are They Skew?
- lemon
- · Replies 4 ·
Probability Question: 4 layers, 4 flavours
- dacruick
- · Replies 7 ·
What are these +2's and +3's used for in solving first-degree equations?
- Tregg Smith
- · Replies 1 ·
Find x: Solving Equations for x in y=2/x and y=e^(x-4)
- TyErd
- · Replies 1 ·
Simplify sin θ sec θ + cos θ csc θ
- PanTh3R
- · Replies 9 ·
Fourth roots of -1+√3i and solving z⁸+2z⁴+4=0
- icystrike
- · Replies 5 ·
Express -1/2(1+i√3) in exponential form and solve (w+2)^4 = -1/2(1+i√3)
- icystrike
- · Replies 12 ·
Linerization of square root of sin(2x)
- songoku
- · Replies 3 ·
Normal distribution head-scratcher
- Mglafas
- · Replies 3 ·
Piecewise function of the following function given
- francis21
- · Replies 1 ·
Linear algebra:Prove that the only invertible nxn idempotent matrix is I
- RossH
- · Replies 4 ·
Finding the Number of Lines from A to B in a 4x7 Rectangle
- mocogi
- · Replies 1 ·
What is a Suitable Transformation for a Double Integral on a Parallelogram?
- vintwc
- · Replies 1 ·
How to Properly Enter Data for 3D Charting?
- rmichaels
- · Replies 4 ·
Solving nP4 = 8(nP3) for n
- Zinger
- · Replies 7 ·
How to Prove the Even Permutations in Sn Form a Group?
- dundalkhead
- · Replies 1 ·
Verify identity: cos(x) - cos(x)/(1-tan(x)) = sin(x)cos(x)/(sin(x)-cos(x))
- PanTh3R
- · Replies 7 ·
Making a piecewise function continuous
- meaganjulie
- · Replies 5 ·
Explicit Formula for Sum of Series
- Andy111
- · Replies 13 ·
Finding least upper and greatest lower bounds for inequalities
- mgnymph
- · Replies 1 ·
How Do You Calculate the Volume of a Diagonally Cut Half-Cylinder?
- BishopUser
- · Replies 2 ·
Solving Fraction Problems: Unitary Method
- 1/2"
- · Replies 3 ·
Graph analysis - how closely histogram fits poisson curve
- Platypus26
- · Replies 1 ·
Graphing f(x)=(x-1)³(x+1)²(x+3) with intercepts
- 1irishman
- · Replies 4 ·
Extracting the question (D.E.)
- annoymage
- · Replies 2 ·
How Can I Factorise Equations with 2 Brackets?
- Gringo123
- · Replies 11 ·
Probability of Correctly Predicting 6 Numbers from 45
- Sirsh
- · Replies 5 ·
Linear Algebra - Characteristic polynomials and similar matrices question
- zeion
- · Replies 7 ·
Converting Mixed Numbers to Improper Fractions
- storoi1990
- · Replies 3 ·
Calculating Compound Interest: January 2010 Cash Balance Analysis
- Astro
- · Replies 4 ·
How Do You Find the Argument of the Sum of Two Complex Numbers?
- Mentallic
- · Replies 3 ·