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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Understand Negative Power Conversions to Positive Fractions
- Simon Peach
- · Replies 4 ·
Arithmetic and Geometric Series
- alexandria
- · Replies 9 ·
What values of k make the proportion of observations with |di| ≥ k meaningful?
- Mark53
- · Replies 1 ·
How Do You Convert Body Temperature from Celsius to Fahrenheit in Statistics?
- Mark53
- · Replies 7 ·
When does a 3×3 matrix have an inverse using row operations?
- Mark53
- · Replies 18 ·
Wrong answer on Linear Algebra and Its Applications 4th Ed.
- mafagafo
- · Replies 5 ·
Finding the Inverse Function of f(x) = 1−3x−2x^2 on Domain [-2, -1]
- Mark53
- · Replies 7 ·
Vectors: why is the cosine of this angle always -1/2?
- Lord Anoobis
- · Replies 6 ·
Sinusoidal Functions: describe transformations, sketch graph
- Evangeline101
- · Replies 10 ·
How is ## \tan ( \arcsin x) = \frac{x}{\sqrt{1-x^2}} ## ?
- Rectifier
- · Replies 17 ·
How Do You Prove Trigonometric Identities with Minimal Equations?
- alexandria
- · Replies 34 ·
Is My Trigonometric Identity Proof Correct?
- Evangeline101
- · Replies 4 ·
Applications of Trig: related acute angles, coordinate plane
- Evangeline101
- · Replies 3 ·
Tangent line and normal on a parabola
- sooyong94
- · Replies 10 ·
I can't understand this problem
- nmego12345
- · Replies 4 ·
Find the argument of the complex number.
- david102
- · Replies 1 ·
Astrolabe Roadstead tides - Sinusoidal Functions
- Evangeline101
- · Replies 14 ·
Ellipse chord subtending a right angle
- Appleton
- · Replies 3 ·
Moving things to the other side of the equals sign
- RabbitWho
- · Replies 9 ·
Regular heptagon, finding value of unknowns
- Frank212
- · Replies 3 ·
Solve Summation Change of Index: Find $\sum_{k=0}^{n} k^2$
- kwal0203
- · Replies 2 ·
Is my solution for this inequality correct?
- Lizu
- · Replies 1 ·
Can Natural Numbers a, b, c with a Dividing bc Imply a Divides c?
- nmego12345
- · Replies 1 ·
Simplifying Exterior Angles in a Polygon
- Frank212
- · Replies 3 ·
Ratio Question with 3 quantities
- zak100
- · Replies 4 ·
Isosceles triangle with angle bisector
- Frank212
- · Replies 3 ·
What is the measure of an isosceles triangle angle when given its base angles?
- Frank212
- · Replies 7 ·
The probability of a probability?
- alan_longor
- · Replies 45 ·
How do you divide polynomials in your head "on sight"?
- Celestion
- · Replies 27 ·
A very very hard college algebra problem
- nmego12345
- · Replies 6 ·
How many ways can (1, 1, 1) be written as a linear combination of three given vectors?
- Mark53
- · Replies 11 ·
What are the sizes of angles in a scalene triangle with given expressions?
- Frank212
- · Replies 5 ·
Finding the markup price when sales price includes a discount
- zak100
- · Replies 9 ·
Expand x^(k+1)/(k+1) - (x-1)^(k+1)/(k+1)
- nmego12345
- · Replies 1 ·
What to do with a mathematic equation
- RabbitWho
- · Replies 4 ·
Solve Inequality: Algebraic Proof of a<b<c<1/12
- Lizu
- · Replies 3 ·
Proper Formatting for Math Problems and Solutions
- Andy86
- · Replies 4 ·
Angle properties: Angles centered at a point?
- Frank212
- · Replies 4 ·
Writing sec(2x)csc(x)sin(2x) as a function of cos(x)
- Mark53
- · Replies 5 ·
How Do You Solve 2^x = 1/√x Correctly?
- Brocollioutofthree
- · Replies 15 ·
Find Solutions to Tan x = Cos x in Radians
- Mark53
- · Replies 20 ·
Geometric Inequality: Prove √(2x)+√(2y)+√(2z)≤√(x+y)+√(y+z)+√(x+z)
- dengulakungen
- · Replies 3 ·
Need to place independent values from 0 to 100
- DGator86
- · Replies 4 ·
Finding All Pairs of Positive Integers for (22016+ 5)m + 22015 = 2n + 1
- giokrutoi
- · Replies 26 ·
Change of Origin: Locus of P is Straight Line ax+by=k
- revitgaur
- · Replies 3 ·
Find number of real solutions of system of equations
- songoku
- · Replies 7 ·
When is P(B|A) = P(B) true with M&Ms and language speakers?
- Mark53
- · Replies 9 ·
Finding μ and σ from a normal cumulative distribution function
- Saracen Rue
- · Replies 6 ·
Find the Domain and Range of Functions with Given Domain and Range Values
- Mark53
- · Replies 6 ·
Factoring binomials with multiple variables p, x, and q
- Hoophy
- · Replies 10 ·
What is the expected profit for a car rental insurance company?
- Mark53
- · Replies 2 ·
Volume of Cylinders: Find V w/ Pi r2h
- Kirito123
- · Replies 2 ·
Probability insurance company problem
- Mark53
- · Replies 2 ·
Finding equation from roots adding 2 to x^4+3x^3-13x^2-51x-36=0
- Faiq
- · Replies 8 ·
Determining if events are independent with dice and coin tosses
- Mark53
- · Replies 14 ·
Probability with conditional die rolls and outcome doubling
- Mark53
- · Replies 9 ·
Number of hours of daylight - Periodic functions.
- Evangeline101
- · Replies 19 ·
Finding the magnitude of a vector
- Matthew1994
- · Replies 12 ·
Factoring the polynomial 6x² + 11x - 35
- late347
- · Replies 12 ·
Finding volume of Square pyramid
- Kirito123
- · Replies 5 ·
Apply Area and Pythagorean Theorem to a prism
- Kirito123
- · Replies 3 ·
Journalizing December transactions in Financial Accounting Fundamentals
- alexandria
- · Replies 1 ·
How do I prove it is a diagonal?
- Zeroth
- · Replies 9 ·
Why is tan(2θs1) negative in Mohr's circle when 2θs1 is outside the triangle?
- chetzread
- · Replies 26 ·
Would this be sufficient as a proof?
- sooyong94
- · Replies 2 ·
Prove |x+y|<|xy+1| when |x|<1 and |y|<1
- liluiass
- · Replies 13 ·
Simplifying nested square roots in quadratic equations
- sooyong94
- · Replies 16 ·
Prove that [itex]\sum_n \frac{1}{n^2} < 2[/itex]
- Portuga
- · Replies 16 ·
Quadratic discriminant with tricky algebra
- sooyong94
- · Replies 7 ·
Portion of Altitude of a Triangle Inscribed in a Circle
- zak100
- · Replies 9 ·
How to Use Vieta's Formula for Finding Roots of a Polynomial?
- sooyong94
- · Replies 2 ·
Prove sum of 1/(a_n+1) is less than 1/2
- giokrutoi
- · Replies 12 ·
Efficient Calculation of a Complex Sum with Multiple Components
- Rectifier
- · Replies 7 ·
Proving Divisibility: Modular Arithmetic and the Pattern of 16^43 - 10^26 Mod 21
- The Subject
- · Replies 1 ·
Finding a continuous proportion with product 1296 and last term 1/6 of sum of means
- Joseph Richard
- · Replies 9 ·
Solving for tan(θ) in an inequality with friction coefficient
- Eagertolearnphysics
- · Replies 9 ·
How Do You Calculate Distance Traveled in the Last 20 Minutes of a Drive?
- zak100
- · Replies 9 ·
Finding health care spending from a fraction of total budget
- tionis
- · Replies 16 ·
What Are the Roots of the Equation ##z^4-2z^3+12z^2-14z+35=0##?
- Rectifier
- · Replies 4 ·
Trigonometry - Solving Trigonometric Equations
- Rectifier
- · Replies 2 ·
Linear Transformation R4 to R4: KerT + ImT = R4
- Dank2
- · Replies 1 ·
Hyperbola's asymptote, where's my mistake?
- Poznerrr
- · Replies 9 ·
Show that f(x) = 0 has only one root
- Clever Penguin
- · Replies 7 ·
Solving the following equation for x: ##(x-5)^{-2} = 9##
- malknar
- · Replies 9 ·
Fundamental counting principle
- paulmdrdo
- · Replies 13 ·
Tough geometry problem about triangles, proof
- physics user1
- · Replies 28 ·
Solution to quadratic equation
- paulmdrdo
- · Replies 9 ·
Can You Solve for the Positive Definite Matrix with Eigenvalues 1 and 2?
- johnny blaz
- · Replies 9 ·
Can you solve these 2 equations with 3 variables and prove the solutions?
- Nikola276
- · Replies 31 ·
Where to place parentheses in 2 · 8 ÷ 4 - 20 to get -36?
- tionis
- · Replies 2 ·
Linear Algebra: 2x2 matrix raised to the power of n
- Miguel Guerrero
- · Replies 9 ·
Partial fraction decomposition using matrix
- ducmod
- · Replies 3 ·
Simultaneous equation involving cos, sin
- urazi
- · Replies 16 ·
Partial fraction decomposition of (-2x²+20x-68)/(x³+4x²+4x+16)
- ducmod
- · Replies 4 ·
What is the car leasing calculation formula
- lsepolis123f
- · Replies 17 ·
[Statistics] Independent vs. Dependent Variables
- statisticsquestion
- · Replies 2 ·
Linear Algebra: Matrix Transformation
- Miguel Guerrero
- · Replies 1 ·
Why Does My Calculation Differ from the Calculator's Result?
- tionis
- · Replies 26 ·
Simplifying multinomial coefficient formula for arrangements
- iScience
- · Replies 1 ·
Can a singular 3×3 matrix with rank(A+5I) < rank(A) be diagonalizable?
- Dank2
- · Replies 42 ·