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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Finding Focus Points of Parabolas in Conic Sections
- skybox
- · Replies 8 ·
Why can sin(θ) equal 1 if the hypotenuse must be longest?
- needingtoknow
- · Replies 3 ·
Can you prove the trig identities given A + B + C = 180 degrees?
- Blandified
- · Replies 3 ·
Using the Method of Differences to Find the Sum of a Series
- converting1
- · Replies 2 ·
How Accurate Are These Trigonometry Compound Angle Calculations?
- will.i.am2
- · Replies 2 ·
Finding terms of sequence where a_{n+1} = |a_n| - 1
- Asla
- · Replies 6 ·
Area Under Curve of y=5x^2+3 from 0 to 2
- tg22542
- · Replies 25 ·
Finding area under y=x² from x=0 to x=2 using rectangles
- tg22542
- · Replies 23 ·
How Do You Factor a Quartic Polynomial into Quadratics?
- agoogler
- · Replies 24 ·
How Many Ways Can a Postman Deliver 4 Wrong Letters to 4 Houses?
- kashan123999
- · Replies 10 ·
Sketching Graphs using Eigenvalues
- Offlinedoctor
- · Replies 4 ·
Sum of floor functions with arithmetic sequence argument
- rattanjot14
- · Replies 1 ·
Using Bayes Theorem to Calculate Probability of a Student Being a Geek
- aaaa202
- · Replies 10 ·
Is the Function f(x) Odd or Even? Proving with Real Numbers
- rattanjot14
- · Replies 3 ·
Finding height using angle of elevation
- QuantumCurt
- · Replies 14 ·
Irrational number to an irrational power
- Mabs
- · Replies 13 ·
Solving X + 1/X = 90 using the quadratic formula
- Synaptic
- · Replies 2 ·
Simplifying Expression with Laws of Exponents
- reenmachine
- · Replies 4 ·
Laws of Exponents II: Simplify Expression
- reenmachine
- · Replies 2 ·
Express with at least one less pair of absolute value signs
- wifi
- · Replies 4 ·
Finding the probability distribution of total typos in a 269-page book
- aaaa202
- · Replies 14 ·
If x^n=y^n and n is odd, then x=y.
- wifi
- · Replies 3 ·
Trigonometry Word problem with angles of elevation
- jmgXD6
- · Replies 11 ·
Proving a^2 < b^2 when 0 ≤ a < b
- wifi
- · Replies 9 ·
How Do You Plot Complex Numbers on a Plane?
- tg22542
- · Replies 5 ·
Analytic Geometry / Vectors - Find point with min distance to plane
- B.Cantarelli
- · Replies 3 ·
Proving x=y=z in an Algebraic Equation with Real Numbers
- sam300
- · Replies 15 ·
Proving sin2x = 2tanx/(1+tan²x) and a second identity
- tg22542
- · Replies 28 ·
Solving a F of g of x Chart Placement Exam Question
- A.J.710
- · Replies 18 ·
Prove: Inequality of Sums of Square Roots of Positive Reals
- Saitama
- · Replies 3 ·
Calculating the Probability of Winning in Risk: A Closed-Form Solution
- Big-Daddy
- · Replies 1 ·
Equation of ellipse: complex plane
- jackscholar
- · Replies 6 ·
Normal and binomial distribution: using Z-scores to find answer
- jackscholar
- · Replies 1 ·
Probability of Seeing a Sword in 5-Card Hand - 5 Times
- ParisSpart
- · Replies 2 ·
Analytic Geometry / Vectors - Finding an Angle Bissector
- B.Cantarelli
- · Replies 2 ·
Finding cubic function from table of values
- JazzMasterKC
- · Replies 6 ·
Finding Bearings: Solve Triangle ABD Problem
- jaxta
- · Replies 5 ·
Simplifying Powers and Parentheses: (27-3y6)1/3 Solution
- datafiend
- · Replies 4 ·
Minimum value of 1/x + 4/y + 9/z with x + y + z = 1
- Saitama
- · Replies 8 ·
Calculating E(X+Y+Z/X) and E(W/X+Y)
- ParisSpart
- · Replies 2 ·
What Is the Minimum Upper Bound of P(X>=5) Given -10<=X<=10 and E(X)=2?
- ParisSpart
- · Replies 14 ·
Finding a vector as a linear combination using cosine law
- stunner5000pt
- · Replies 5 ·
Why does the determinant form of a plane have a 1 in the vector?
- Jbreezy
- · Replies 15 ·
Combinations of algebraic functions
- QuantumCurt
- · Replies 12 ·
Geometric Proof of Vector Triple Product: Find Coefficients b and c
- Harrisonized
- · Replies 5 ·
Solve system with rational expressions in x and y
- Hivoyer
- · Replies 4 ·
How to translate from polar to cartesian coordinates:
- sjombol
- · Replies 5 ·
What is sin[itex]_{2}[/itex][itex]\theta[/itex]min in regards to XRD
- Qrux
- · Replies 1 ·
Probability for a ball choosing game from infinite amount
- bear_lord
- · Replies 10 ·
Not understanding what the question is asking. Volume of solid
- Jbreezy
- · Replies 11 ·
Probability of winning Risk with 1 attacker vs. 1 or 2 defenders
- Big-Daddy
- · Replies 18 ·
Equation of plane parallel vectors
- Jbreezy
- · Replies 1 ·
Irrational Equation - I end up in a dead end
- Hivoyer
- · Replies 7 ·
Proving a binomial sum identity for DNA replication efficiency
- DaanV
- · Replies 4 ·
Possbility (Gambling Question)
- Albert C
- · Replies 3 ·
How Do You Find the Equation of a Plane Perpendicular to the YZ-Plane?
- plutolover
- · Replies 1 ·
How many segments on a gridded cuboid?
- boyboy400
- · Replies 1 ·
Why doesn't this radical equation have a solution?
- ryn droma
- · Replies 2 ·
Why Is the Sum of 1/2 (n+1)/2?
- theintarnets
- · Replies 1 ·
What is the key to teaching determinants with the volume of a parallelepiped?
- Jbreezy
- · Replies 14 ·
System of equations with 2 parameters
- Hivoyer
- · Replies 3 ·
Finding basis for 2×2 matrices where b=d
- Offlinedoctor
- · Replies 3 ·
Arithmetic progression used to determine geometric progression
- Hivoyer
- · Replies 3 ·
Summation with index starting at i=4 instead of i=1
- theintarnets
- · Replies 3 ·
Solving Roots of Unity with De Moivre's Theorem
- h0llow
- · Replies 18 ·
Lim of trig functions. Does it exist?
- mathgeek69
- · Replies 7 ·
When is (ay - bx)² + 4(a - x)(b - y) = 0 for rational numbers?
- JanEnClaesen
- · Replies 8 ·
How Does the Limit of tan^-1(1/(x-pi))/(pi-x) Behave as x Approaches pi?
- mathgeek69
- · Replies 8 ·
What is the Vector Equation for Finding the Vertices of a Parallelepiped?
- rainyheleny
- · Replies 1 ·
Find the solution if it exists.
- mathgeek69
- · Replies 5 ·
Find Length of P in Vector Norm Given Plane
- Jbreezy
- · Replies 29 ·
Law Of Sines, deducing addition formula
- xavierhart
- · Replies 5 ·
Inverse function of inequality function
- xlu2
- · Replies 1 ·
Solving the Puzzle: Speed of Two Buses
- gunslinger
- · Replies 5 ·
What is the correct way to combine two argand diagrams for Complex Numbers?
- converting1
- · Replies 3 ·
Graphing sinusoidal voltage v = 6sin(314t + π/2)
- will.i.am2
- · Replies 15 ·
Arithemtic and geometric progession
- Government$
- · Replies 2 ·
Rewriting an expression what math operation did my teacher do?
- Femme_physics
- · Replies 4 ·
Phase difference and power from voltage and current phasors
- eddievic
- · Replies 5 ·
Simplifying parallel resistance formula with || notation
- Femme_physics
- · Replies 2 ·
Proving Polynomial Property: Get Hint Here
- Jbreezy
- · Replies 2 ·
Equation of circle in 3 dimensions
- davon806
- · Replies 3 ·
Summing Infinite Series: A Shortcut Using Differentiation
- AGNuke
- · Replies 6 ·
What Is the Expected Value E(X|X>=6) for a Geometric Distribution with p=0.20?
- ParisSpart
- · Replies 4 ·
How Do I Prove This Tautology?
- Rome_Leader
- · Replies 1 ·
What is the limit of (3x³ + cos(x)) / (sin(x) - x³) as x approaches infinity?
- mathgeek69
- · Replies 10 ·
When Will the Rabbit Population Recover After a Myxomatosis Outbreak?
- Buckled
- · Replies 1 ·
Trigonometry Problem Solving Question
- Zashmar
- · Replies 2 ·
Finding height and distance for projectile motion at different angles
- alexneco
- · Replies 7 ·
Projection of a distance in rectangular coordinates
- ShizukaSm
- · Replies 4 ·
Determining if functions are invertible on specific intervals
- mathgeek69
- · Replies 8 ·
Factor and simplify (PREcalculus)
- Conzen
- · Replies 7 ·
Finding the number of arrangements
- hms.tech
- · Replies 10 ·
I'm having trouble factoring this rational expression.
- ECHOSIDE
- · Replies 4 ·
What Happens to 'a' When Multiplying by 2x?
- AlexKalm
- · Replies 13 ·
Finding f(f(2)) from the functional equation 2+f(x)f(y)=f(x)+f(y)+f(xy)
- utkarshakash
- · Replies 37 ·
Exponential decay and half life problem
- fatima_a
- · Replies 2 ·
What is the best way to solve a system of linear equations?
- SherlockOhms
- · Replies 6 ·
Matrix Determinants: Find x for Invertibility
- SherlockOhms
- · Replies 5 ·
What Is the Probability That Both Peter and Simon Get Poisoned?
- Gauss M.D.
- · Replies 4 ·