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
Arranging 38 pens of 4 different colors
- iScience
- · Replies 12 ·
Proving Linear Independence and Spanning in Vector Spaces
- Danielm
- · Replies 3 ·
Proof: Linear Dependence of Vectors in a Vector Space
- Danielm
- · Replies 6 ·
Why is there no ln 2 in the solution to e^z=(√2+i√2)/2?
- Dousin12
- · Replies 6 ·
How Many Ways to Deal Two Distinct Pairs in a Four-Card Hand?
- davedave
- · Replies 3 ·
Understanding Complex Numbers: Formulas and Applications
- Dousin12
- · Replies 3 ·
What are the solutions to the complex polynomial equation ##z^3+3i\bar z=0##?
- Dank2
- · Replies 64 ·
Finding the Volume of Cones and Cylinders Using Known Values
- Kirito123
- · Replies 31 ·
Counting Reflexive and Anti-Symmetric Relations on a Finite Set
- Danielm
- · Replies 6 ·
Finding the Missing Side Length of a Composite Shape
- Kirito123
- · Replies 5 ·
Finding height and volume of a cylinder
- Kirito123
- · Replies 9 ·
Inequality without factor table
- Rectifier
- · Replies 26 ·
Show that (z1 + z2)/(1 + z1z2) is real when |z1| = |z2| = 1
- Dank2
- · Replies 47 ·
Finding the phase shift in a Ferris wheel height function
- Veronica_Oles
- · Replies 1 ·
Ocean Word Problem: Find Equation
- Veronica_Oles
- · Replies 5 ·
Find Angle of Refraction: Snell's Law Solution
- IBNU1
- · Replies 3 ·
What are the Max and Min Values for Tide Height?
- Veronica_Oles
- · Replies 16 ·
Modifying h(t) to Match New Tidal Data
- Veronica_Oles
- · Replies 6 ·
Adjusting the Model: d = 12 sin (30(t-5)) + 14
- Veronica_Oles
- · Replies 4 ·
Cone volume calculation with radius 6 and height 15
- Kirito123
- · Replies 2 ·
Converting x=5cos⁷(t), y=5sin⁷(t) to Cartesian form
- 53Mark53
- · Replies 11 ·
Recursive sequence problem, or something similar
- late347
- · Replies 7 ·
Logic question on finding age of someone
- chwala
- · Replies 17 ·
How Do We Solve These Tricky Number Series Problems?
- CWatters
- · Replies 11 ·
How Do You Determine Values of a Periodic Function with Limited Data?
- Veronica_Oles
- · Replies 2 ·
Quick Trigonometric Identity Question
- Draconifors
- · Replies 5 ·
How to Solve a Logarithmic Equation on a Given Base?
- colt
- · Replies 4 ·
Factoring two variable function
- terryds
- · Replies 7 ·
Find the equation of an ellipse
- Matejxx1
- · Replies 10 ·
Finding the marked angle in a triangle with parallel sides
- SpartaBagelz
- · Replies 9 ·
Disproving a^3 + b^3 + c^3 ≡ 0 (mod 7) for non-multiples of 7
- lolo94
- · Replies 11 ·
If f(0) and f(1) are even, is f(n) always an integer?
- lolo94
- · Replies 3 ·
Why is there a twist in these logarithms?
- sidt36
- · Replies 10 ·
Complex Plane - Graphing Powers
- zr95
- · Replies 24 ·
How Does Price Affect Supply and Demand for Wheat?
- Terrell
- · Replies 6 ·
Is 3^n Greater Than n^4 for All n>=8?
- lolo94
- · Replies 12 ·
What Is the Common Difference in This Arithmetic Progression?
- kaspis245
- · Replies 3 ·
Why Does This Trigonometric Identity Seem Incorrect?
- Veronica_Oles
- · Replies 11 ·
Find the Y-Axis in a Coordinate System with Given X and Z-Axis Values
- Philosophaie
- · Replies 3 ·
When Are Two Vectors Orthogonal in Vector Algebra?
- terryds
- · Replies 4 ·
How Do You Rotate and Stretch a Complex Number Vector?
- AlexChan
- · Replies 6 ·
Proving AC · BP = 0 with orthogonality conditions
- 53Mark53
- · Replies 18 ·
One solution, no solution or infinite solutions with k
- Mrencko
- · Replies 24 ·
Making formulas and graphing them
- Kirito123
- · Replies 11 ·
Probability coin and die Question
- mikebrisingr
- · Replies 4 ·
Which equations are linear in x1, x2 and x3?
- Mrencko
- · Replies 3 ·
Disproving a Polynomial with Integer Coefficients: Elementary Math Proof
- lolo94
- · Replies 5 ·
Proving 2/5*(2^0.5)-1/7 is Irrational: Elementary Math Proof
- lolo94
- · Replies 1 ·
How Do I Solve This Multivariable Algebraic Equation?
- dlacombe13
- · Replies 9 ·
Solution to this trigonometric equation
- diredragon
- · Replies 8 ·
How Do You Solve Exponential Equations with Different Bases?
- johnsonjohn
- · Replies 19 ·
What Is the Sum of the Maximum and Minimum Values of r Given These Conditions?
- terryds
- · Replies 17 ·
Making realistic scenarios for the given lines
- Kirito123
- · Replies 15 ·
Finding the other side of a rectangle with height 2 and base 8
- Kirito123
- · Replies 26 ·
How Do You Calculate the Total Area of Rectangles and Triangles Combined?
- Kirito123
- · Replies 3 ·
Solving a polynomial with complex coefficients
- astrololo
- · Replies 6 ·
Shouldn't f(t) = V have inverse f^{-1} (V) not f^{-1} (t)?
- kostoglotov
- · Replies 7 ·
Word problems (Deriving an equation from the problem)
- ryan001
- · Replies 9 ·
Reflecting the line āz + az̄ = 0 in the real axis
- erisedk
- · Replies 7 ·
What is the optimality proof of the earliest finish time algorithm?
- lolo94
- · Replies 1 ·
Proving 1/(1+cosx) = csc²x - cscxcotx
- Veronica_Oles
- · Replies 8 ·
Solving for cot2x + sec2x = tan2x + csc2x
- Veronica_Oles
- · Replies 6 ·
Combination Question with Identical Pieces
- member 428835
- · Replies 14 ·
When does (x-a)(x-b)/(x-c) assume all real values?
- erisedk
- · Replies 17 ·
What curve does z = (α + βt)/(γ + δt) represent in the complex plane?
- erisedk
- · Replies 1 ·
Proof about min spanning tree property
- ciphone
- · Replies 2 ·
What is the proof for 2sin2θ - 1 = sin2θ - cos2θ?
- Veronica_Oles
- · Replies 4 ·
Solving the Equation: (sinθ + cosθ)2 = 1 + 2sinθ cosθ
- Veronica_Oles
- · Replies 1 ·
Finding the Ordered Pairs for an Exponential Limit
- erisedk
- · Replies 2 ·
Quadratic Problem: Find Sum of Roots of 4 Equations
- erisedk
- · Replies 4 ·
Finding trig identities when given only sin α = √3/2
- Ray9927
- · Replies 2 ·
Solve Inequalities Problem: x ∈ (-2,-1) ∪ (⅔, -½)
- erisedk
- · Replies 5 ·
Writing equations and calculating cost based on a graph
- Kirito123
- · Replies 43 ·
Help proving a Euclidean geometry theorem
- Ameer Bux
- · Replies 14 ·
How many ways can 12 balls be arranged into 4 different rows
- kukumaluboy
- · Replies 7 ·
Quadratic with variable buried in sqrt?
- irishetalon00
- · Replies 4 ·
How Do You Solve the Ambiguous Triangle Case in Trigonometry?
- Veronica_Oles
- · Replies 5 ·
What is the common root for two polynomial equations with a shared coefficient?
- vijayramakrishnan
- · Replies 6 ·
What Are the Variable Restrictions for Jeffrey's Dinner Party Budget Equation?
- Kirito123
- · Replies 16 ·
What Is the Probability of Drawing a Jack and Then a Heart from a Deck of Cards?
- member 428835
- · Replies 22 ·
Mapping a + b√2 to a 2×2 matrix
- SYoungblood
- · Replies 18 ·
Finding sum of roots of trigonometric equation
- Priyadarshi Raj
- · Replies 3 ·
Solving an equation with fractional part function
- Priyadarshi Raj
- · Replies 5 ·
Simplifying a log expression with identities
- ProfuselyQuarky
- · Replies 16 ·
Proving a/b + b/a ≥ 2 for positive reals
- TheMathNoob
- · Replies 4 ·
Independent/dependent variable and modeling equations
- Kirito123
- · Replies 4 ·
Creating an equation that models a scenario
- Kirito123
- · Replies 16 ·
Identifying the slope of a line
- Kirito123
- · Replies 7 ·
Changing standard form to slope intercept form.
- Kirito123
- · Replies 4 ·
Proof of Partition Property for Subset A in Universal Set U
- TheMathNoob
- · Replies 1 ·
Is n congruent to 1 mod 5 if n is congruent to 6 mod 5?
- TheMathNoob
- · Replies 7 ·
Im trying to determine the y and x intercepts of this line.
- Kirito123
- · Replies 6 ·
Determining the equation of a line
- Kirito123
- · Replies 10 ·
Finding the Domain of a Trigonometric Function
- Astraithious
- · Replies 6 ·
Question from trigonometry -- prove that the largest angle is greater than 120°
- prashant singh
- · Replies 6 ·
Percentages -- having trouble understanding how to take a percentage of a number
- zak100
- · Replies 6 ·
Why is cashier's algorithm optimal for U.S. coin denominations?
- Sebastian Martinez
- · Replies 2 ·
Is it Possible to solve Exponential Equations like these?
- Alex Myhill
- · Replies 3 ·
Area of Shaded Region in Elementary Geometry
- davon806
- · Replies 20 ·
Why does x = -1 fail to satisfy x - √((x+2)²) = 0?
- terryds
- · Replies 12 ·