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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Estimated Instantaneous Rate Of Change
- Veronica_Oles
- · Replies 2 ·
Simplifying a derivative with nested fractions and radicals
- quicksilver123
- · Replies 16 ·
What is your answer to this Logic question? (Mine included)
- Ayushi160695
- · Replies 9 ·
Value of summation involving combination
- songoku
- · Replies 14 ·
How many women ran faster than Joan using standard deviation?
- Kingyou123
- · Replies 5 ·
Solving problems in function notation
- Daringpear
- · Replies 3 ·
How to interpret Cost Function?
- Richard_Steele
- · Replies 28 ·
Linear algebra - linear equation for a plane
- Rectifier
- · Replies 15 ·
Using Properties of Logarithms
- FritoTaco
- · Replies 22 ·
Finding Equation of Rational Function
- Veronica_Oles
- · Replies 2 ·
Arranging four red and two white chips in a circle
- Mr Davis 97
- · Replies 4 ·
Proving the explicit formula for w_k = w_{k-2} + k by induction
- Arew
- · Replies 7 ·
Solving two real number equations from high school calculus
- Apple&Orange
- · Replies 2 ·
Finding the Time: Solving a Rational Equation for Painting a Wall
- Veronica_Oles
- · Replies 3 ·
Use iteration to guess an explicit formula
- Arew
- · Replies 4 ·
Colinear points in a vectorplane
- Marcus95
- · Replies 4 ·
Im not sure if this is right so I'm making sure.
- Joshper14
- · Replies 4 ·
Finding inverse functions with exponents and logarithms
- IDontKnow430
- · Replies 4 ·
What algebraic property can I use here?
- megaboy123
- · Replies 5 ·
Finding CE in a triangle using the cosine rule
- terryds
- · Replies 9 ·
Doublecheck reduction of rational expressions
- late347
- · Replies 2 ·
How Can the Maclaurin Series Validate a Trigonometric Inequality?
- Clara Chung
- · Replies 4 ·
Proving fixed point(s) exist w/ intermediate value theorem
- cmkluza
- · Replies 13 ·
Find common term for this sequence
- NihalRi
- · Replies 3 ·
Finding k and b for y=(k/x)+b with incomplete table
- Gustavs1337
- · Replies 11 ·
Calculating Dimensions of a Cylindrical Container with Given Volume
- RohanTalkad
- · Replies 3 ·
Can't find all the zeroes of a polynomial
- johnsonjohn
- · Replies 19 ·
Changing sign of data (regression)
- roam
- · Replies 1 ·
Find the Union of Intervals: A_n
- James Brady
- · Replies 1 ·
Sum of Deviations: Proving $\sum_{i=1}^Nv_i(v_i - \langle v \rangle) = 0$
- kubaanglin
- · Replies 3 ·
Is the Function f(x) = x^2 Injective?
- Korisnik
- · Replies 9 ·
Fraction calculation, can't find mistake
- late347
- · Replies 24 ·
Solving for n: power and log rules refresh
- nrobidoux
- · Replies 7 ·
Trig identities (I think?) for precalc review
- Arnoldjavs3
- · Replies 5 ·
Solving exponential equation (using a graph)
- roam
- · Replies 17 ·
Finding the limit of a quotient as x goes to minus infinity
- cmkluza
- · Replies 6 ·
Expand $\vec{v}\times(\nabla\times\vec{A})$ using Lagrange's formula
- Muthumanimaran
- · Replies 2 ·
Finding ∑fx and ∑fx^2 from the standard deviation and mean
- albertrichardf
- · Replies 4 ·
Boolean algebra - is it possible to simplify this expression to 0
- Rectifier
- · Replies 8 ·
Slopes product = -1 <===> lines perpendicular
- Dank2
- · Replies 10 ·
How to find this answer using logarithmic table?
- Dinesh321
- · Replies 10 ·
Finding when computer sales reached 1.5 million in Canada
- Veronica_Oles
- · Replies 7 ·
Are a ⊕ ab ⊕ ac and a ⊕ b ⊕ c equivalent in Boolean algebra?
- Rectifier
- · Replies 7 ·
Solving Polynomial Inequalities
- Veronica_Oles
- · Replies 3 ·
Finding the Radius of a Tangent Circumference in a Right Triangle
- Gjmdp
- · Replies 9 ·
'Equating the coefficients' question
- Parsifal1
- · Replies 3 ·
Sum of Sine and Cosine: Expressing Any Sum as C sin(α+ϕ)
- Dank2
- · Replies 5 ·
Is Person A a Knight or a Knave on the Island?
- wololo
- · Replies 7 ·
Solving x²-yx+y²-7=0 with two variables
- Ashley1nOnly
- · Replies 6 ·
What are the properties of nonzero complex numbers satisfying z^2 = i\bar{z}?
- cr7einstein
- · Replies 14 ·
Formula to detect direct or inverse related values
- radaway
- · Replies 8 ·
Geometry and Trig: finding an expression for an angle
- tomwilliam2
- · Replies 3 ·
Function Injectivity Subjectivity Proof
- Austin Chang
- · Replies 7 ·
Why doesn't (8c1)(13c2) work for choosing a team with at least one woman?
- gtfitzpatrick
- · Replies 2 ·
How Do You Form a Degree 4 Polynomial with Given Complex Zeros?
- caters
- · Replies 7 ·
Scattering in Finite step potential
- Guaicai
- · Replies 2 ·
What is the Domain of the Area Function for a Rectangle on a Parabola?
- caters
- · Replies 15 ·
Find the center of the circle of curvature
- Sho Kano
- · Replies 6 ·
Long Division and Remainder Theorem
- FritoTaco
- · Replies 5 ·
Finding f°g and g°f with domains and codomains
- Austin Chang
- · Replies 7 ·
Characteristics of Polynomials
- Veronica_Oles
- · Replies 3 ·
Find sin x expressed by a and b
- Hans Herland
- · Replies 10 ·
Efficient Method for Finding Units in Number Theory Rings (Z12, ⊗, ⊕)
- Rectifier
- · Replies 7 ·
How Do You Find the Inverse of 5 in Z12?
- Rectifier
- · Replies 12 ·
Preparing "Adjusting Entries" Financial Accounting
- alexandria
- · Replies 5 ·
Boolean algebra - distribution
- Rectifier
- · Replies 12 ·
Determinant of a 3x3 matrix via row reduction
- sooyong94
- · Replies 6 ·
If A, B are n order square matrices, and AB=0, then BA=0?
- Portuga
- · Replies 7 ·
Solving trigonometric equation of a sum of unknowns
- teetar
- · Replies 7 ·
Computing geometric series with sigma notation on Casio and TI calculators
- late347
- · Replies 8 ·
If a^2 divides b^2, a divides b
- DerpyPenguin
- · Replies 3 ·
Finding the sum of a series by grouping
- sooyong94
- · Replies 5 ·
Analog clock algebra word problem
- late347
- · Replies 22 ·
Paint coverage area from 1 gallon with 0.1 cm thickness
- Oannes
- · Replies 4 ·
Continuity of a Function at x=-3 - Proving c Value
- KevinFan
- · Replies 9 ·
Prove this is a right triangle in a sphere
- Sho Kano
- · Replies 20 ·
Vectors: check if coordinates are in the same plane
- terhje
- · Replies 12 ·
Proving two simple matrix product properties
- TheSodesa
- · Replies 2 ·
Volume of a cylinder with a cylindrical hole drilled through it
- devo24
- · Replies 14 ·
Finding apparent depth real depth and refractive index
- RabbitWho
- · Replies 2 ·
Find the equation of the plane parallel to two lines
- Sho Kano
- · Replies 6 ·
When is x^n congruent to x^m (mod 3) for all x in Z^+?
- freakfog
- · Replies 2 ·
Complex Numbers (Exponential/Rectangular Form)
- Marcin H
- · Replies 5 ·
Graph of trigonometric functions
- ItsAnshumaan
- · Replies 4 ·
Chances of player A winning a chess tournament?
- TheSodesa
- · Replies 12 ·
Making something 1% larger than something
- RJLiberator
- · Replies 5 ·
Solve cos(x) + cos(3x) = sin(x) + sin(3x)
- Alettix
- · Replies 5 ·
How Do You Calculate Conditional Probability with Complements?
- TheSodesa
- · Replies 23 ·
Prove by induction that r(r-1)(r+1) is an even integer
- sooyong94
- · Replies 11 ·
Probability of choosing stale donuts out of 24
- TheSodesa
- · Replies 3 ·
Help me derive the Doppler effect ratio
- Comscistudent
- · Replies 6 ·
Two body problem, deriving energy expression
- tomwilliam2
- · Replies 2 ·
Finding the Limit of a Complex Expression
- manasi bandhaokar
- · Replies 8 ·
What Are the Values of c and d for This Precalculus Limit Problem?
- Lennie Oswald
- · Replies 10 ·
Simple Harmonic Motion - Getting Acceleration from Velocity
- jasonian
- · Replies 1 ·
Rational roots of 4th degree polynomial with odd coefficents
- Hiero
- · Replies 17 ·
Mean and Variance of a data set
- DeldotB
- · Replies 1 ·
What is the Probability of Hereditary Conditions in a Gaussian Distribution?
- conrad dunk
- · Replies 8 ·
Classroom has 100 students -- probability of speaking a language
- DotKite
- · Replies 7 ·
Understand Negative Power Conversions to Positive Fractions
- Simon Peach
- · Replies 4 ·