Precalculus Mathematics Homework Help Forum

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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.
How many ways can you roll a four of a kind and a two of a kind with 6 dice?
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Proof of trig identity (difficult)
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Need help proving some trig identities
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Why is the range of ø in spherical coordinates limited to 0 to π?
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How does constant percent rate of change apply to exponential expressions?
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What is the solution for Ry in Sin 0=Ry/Rx when given values for Rx and theta?
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How to solve an exponential equation
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I would appreciate some help with my geometry homework
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How to Analyze Correlation Between Variables
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Proving ∠D=90°-(∠A/2) in Triangle ABC with Bisectors
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Find x,y,z in Sequence: 33, ?,?,?,88
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Solve "Find the Equation of the Line with Gradient 3/4 Passing Through (7,11)
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Why can't I just square both sides and get the solution?
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Radical with negative radicand squared
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How to Prove a Complex Inequality with Complex Algebra
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Calculating Euler's Totient Function for Large Numbers: Is There a Better Way?
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Just a complex Complex product
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Proof: Parabola reflects light to the focus
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Possible solutions for z: √(a+bi) or -√(a+bi)
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Plane & 3D Vector Homework Solution
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What is the Formula for an Arithmetic Series with Odd Numbers?
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Interest Theory- Annuity Withdrawals
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Solving Anova Table? (stats problem)
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Finding the intersect of two functions
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How to rewrite the provided sum in another form?
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How to factor (2x^2 + ax - 2a - 8)?
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Summation by Steps: Calculus Self-Teaching Homework Help
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Interesting Problem from Gelfand's Algebra; Relevance?
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A problem with a septimal system.
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(Serbia) Just squaring won't work
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Can You Find the Real Solutions to This Radical Equation?
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Different ways of expressing logarithms
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Simple Function Question, Can't Figure Out How Answer is Achieved
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How Do You Factor Complex Algebraic Expressions Like This Olympiad Problem?
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Solving a Quadratic Expression: How to Solve 2x^2+9x = -5
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Show that R is a partial order on ℤ.
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Can different arguments be correct for the same complex number?
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Set theory: proofs regarding power sets
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Factoring algebraic complex expression
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What is the Probability of Drawing a White Ball from the Second Urn?
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How Do You Calculate Pitch and Chirality in a Helical Toroid Equation?
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Finding a limit of an expression when the denominator tends to zero.
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Binomial expansion, general coefficient
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Is Option 2 the Only Subset of P(C) in This List?
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Develop Model Emulating Given Wave Pattern
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How can I solve for the roots of (z+i)^2=3-4i in my complex number homework?
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My proof that the square root of 2 multiplied by r is irrational
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Calculating n!/(k-1)!(n-k+1)! from Binomial Theorem
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Finding points of intersection algebraically between 2 trig functions
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Word problem with exponential and quadratic models
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Minor question about solution to Dedekind-Cut proof
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Solving trig equations involving aperiodic functions
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Generate a function from a list of numbers
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Form some third degree equation that has the roots -3, -1 and 2.
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Word problem involving sinusoidal model
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How can I express f(z) in terms of z?
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Why Does cos(180-Θ) = -cos(Θ)?
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Binomial expansion of (1+(1/x))^(-1)
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What Is the Symmetric Triple Quad Formula?
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Flagpole Height Calculation | FE Trig Problem 14
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Self review: Statistics - Binomial Distribution
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A problem concerning divisibility and the number 31. (Number theory)
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There are 3 cannibals and 3 missionaries on one side of a river
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Solve a, b, c: Step-by-Step Guide
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Any integer = a_0 * 2^n + a_1 * 2^(n – 1) + a_2 * 2^(n – 2) + + a_n
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Is Every Prime Number Defined by Its Unique Factors?
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Regression formula (calculating trends)
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Mathmatic relationship (Linear,Quadratic,Exponential)
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Proving period of f/g could be less than period of f and g
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Is Calculus Required to Determine the Probability of Drawing a Black Ball?
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Probability - I understanding the "mechanics"
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Elementary Trigonometry problem
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Problem on interest rates -- Math proof interesting
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Solving a Combinations Problem: 15 or 21?
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Finding the Pitch of a Log Spiral: Solving the Equation and Graphing the Results
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Finding sample size given info on confidence interval
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Proof about product of 4 integers
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Probability of independent events
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What Does ##n(A)## Represent in Set Theory?
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What is the probability of an integer being divisible by 6 or 8?
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How Do You Solve Complex Exponential Equations?
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Can you Explain the Mysteries of Exponents?
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Coordinate geometry with area of triangle
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Solve Quadratic Equation Q1: x^2+4x-5=0
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Basic Trignometry: f(α).f(β) When α+β=5π/4
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Time & Work Problem: Solving 1/2 Unit of Work in 6 Days
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Sol'n: 98% of People in Room is Men: Remove 2.97 Men
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Probability of hitting a bull's eye
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What is the equation of the circumcircle of triangle PAB?
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Finding Coordinates of A and B in an Equilateral Triangle
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Y-Intercept of Crop Duster Flight Path
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What is the angle needed to see a distant point on a circle with a given radius?
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Proof that sqrt(2) is not a rational number
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Problem involving intersection of a line and a circle
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What is the Trigonometry Behind Finding x in Two Triangles?
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Finding the Area of a Similar Right Triangle
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Frequency Distribution Homework: Part II Help and Attached Working for Part I
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Prove that no "prime triplet" exists after 3,5,7
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Prove (2n+1)+(2n+3)+ +(4n-1)=3n^2
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Elementary Number Theory - GCD problems and proofs
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