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.
Finding vertex of quadratic equation?
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Lines and Planes: How Do They Intersect?
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Contrapositive Proof of Theorem: x > y → x > y+ε
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How do I find the other roots of a polynomial if one root is given?
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Solving for Line FC Using the Pythagorean Theorem
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Interesting practical mathematical problem
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Partial Fraction Question: HELP with Polynomial Long Division
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Shortest Distance in Euclidean Geometry: Proven or Definition?
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Range of a function without graph
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Normal Distribution: Basic statistics help needed
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Finding Eigenvalues and determine if there are invariant lines
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Another conditional probability problem
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Help Solving Trig Homework: Find cos(u+v)
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Discrete math, proving the absorption law
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Probability of Two Marbles Drawn: Black & Diff Cols
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Decimal Values of 8-bit Hexadecimal Number 0xD1 | Conversion Homework Solution
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About probability without replacement.
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Probabillity of an event happening given union and intersection
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Tom Throws a Fair Dice: Finding Probabilities
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Solving a Logarithmic Equation with an Irrational Result
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Really odd problem in geometry?
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Surface Area of Shoe Box Shape to Maximize Volume
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How Tall is an Infinite Stack of Russian Dolls?
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Is My Calculation Correct for O.4^(|x-2|/|x+2|) = 0.4^2?
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How Many Terms Are in the Geometric Sequence?
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Vector manipulations and stuff
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Why does the range of cot-1(x) differ from tan-1(x)?
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Negating a Statement: Understanding the Rules and Implications
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Help visualising this triangle
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Calculate the numbers of ways to arrange 6 letters out of 7 letters of
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Rules of Implication: Is [(P implies A) etc] True?
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How Do You Calculate Probabilities for Different Sizes and Types of Shirts?
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What is the Probability of Passing a Test by Randomly Guessing?
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How Many Cases Do I Need to Consider for Proof by Contradiction?
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Linear Algebra Help: Nullspace & Rangespace Basis | f: P3 → M2x2
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Sampling distribution of mean item number?
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Showing that (m n) + (m n-1) = (m+1 n).
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Understanding the Properties of Imaginary Cube Roots of Unity
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Algebra help what are the steps to get to the answer
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How Do You Find g(x) When f(g(x)) Equals a Different Function?
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Solving for x in an Exponential Equation
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Can Inequality with Factorial Be Proven without Induction?
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(15,11) Hamming Code, too work out how to calculate check digits
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Drawing (not too simple) Cosine waves on the x and y axis.
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Prove trigonometric identity and determine a counterexample
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Normal distribution percentage problem.
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I have a exponetial graph but how do I calculate results?
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How Do You Determine Horizontal Shifts in Sinusoidal Functions?
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Probability of shuffling properly
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Probability of picking someone who opposes and favors
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How Do You Algebraically Solve for n in Compound Interest Equations?
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Solving Angle of Elevation Problem: 200 ft, 70°, 82°
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Probability of getting 4 aces out of a hand of 5
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Closed form expression for this?
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Proving Injection in Composite Functions
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What is the inverse of the function ƒ(x) = ex?
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Naming a triangle for a vectors question
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Partial Fractions: Simplifying Unfactorable Denominators
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What is the probability a person’s cholesterol
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Solve |3x-7|-|x-8| > 4 (solve algebraically)
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Find Domain Of: √(log1/5(1/Sin5x))
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More a question to some conceptual understanding of combinatorics. The
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Calculating σ for Woolen Scarves: Normal Distribution Help
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Circle Inscribed in Triangle: Area Ratios with Inscribed Circle Tangents
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Can You Solve cos√x = cosx Correctly?
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Parametric equations motion problem
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What is the Area of the Parallelogram?
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Arranging & Combining Equations (problem)
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Prove that there are 3^n n-digit numbers formed with 4, 5 ,6
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How Do You Simplify the Square of Complex Conjugates?
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Find the terms that add up to 1010100
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Rearranging equation to find back gate bias
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What Went Wrong? Solving for X in an Inequality
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How Does the Probability of Failure Change in Synchronous Machine Operations?
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Solve the Equation getting rid of square roots
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Simple Geometry problem is stumping me
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Two grids, one rotating, share equivalent x-y coordinates with different values.
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Confused on what should be negative when finding with half angle identities
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How Do You Solve cosθ = sin2θ/2 Using Trigonometric Identities?
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What is the Smallest Surface Area of a Crate Delivered by Canada Post?
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Use standard identities to express
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Don't understand this problem (Permutations, I think)
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Algebra Problem, solving for the waterweight of grapes?
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Reasoning and Writing Question, what's your interpretation?
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Algebra Problem, solving by rearranging
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Flawed Proof: x + y = y in Algebra - Spivak Calculus (1994) Homework
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Factor Expression: A2+B2 from 3[√3+√5+√7]2
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Fractions - showing that they are equivalent
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Transforming Lines to Circles in the w-plane
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How Do I Graph a Piecewise Function?
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Need help with a small vector and parametric question.
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Calculating Joint Conditional Probability with Independent Variables
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Permutation Question: Arranging 3 Cards from 6
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Equations with sine and cosine.
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How to find an unknown in a cubic equation iF you are given a factor?
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Is my 2's complement addition correct?
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Finding the equation of a plane passing through 3 points
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Continuation of composite function problem problematic
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How Do You Solve a Composite Function Problem with Constants?
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Parallelogram Vector Proof: Using Vector Addition and Triangle Relationships
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