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.
Wrong answer on Linear Algebra and Its Applications 4th Ed.
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Finding the Inverse Function of f(x) = 1−3x−2x^2 on Domain [-2, -1]
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Vectors: why is the cosine of this angle always -1/2?
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Sinusoidal Functions: describe transformations, sketch graph
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How is ## \tan ( \arcsin x) = \frac{x}{\sqrt{1-x^2}} ## ?
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How Do You Prove Trigonometric Identities with Minimal Equations?
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Is My Trigonometric Identity Proof Correct?
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Applications of Trig: related acute angles, coordinate plane
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Tangent line and normal on a parabola
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I can't understand this problem
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Find the argument of the complex number.
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Astrolabe Roadstead tides - Sinusoidal Functions
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Ellipse chord subtending a right angle
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Moving things to the other side of the equals sign
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Regular heptagon, finding value of unknowns
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Solve Summation Change of Index: Find $\sum_{k=0}^{n} k^2$
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Master Algebra Inequalities with Proven Techniques – Get Your Answers Now!
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Can Natural Numbers a, b, c with a Dividing bc Imply a Divides c?
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Simplifying Exterior Angles in a Polygon
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Ratio Question with 3 quantities
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Isosceles triangle with angle bisector
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What is the measure of an isosceles triangle angle when given its base angles?
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The probability of a probability?
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How do you divide polynomials in your head "on sight"?
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A very very hard college algebra problem
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Calculating Linear Combinations of Vectors: Step-by-Step Guide
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What are the sizes of angles in a scalene triangle with given expressions?
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Solving a 20% Profit Problem: Bernie's Bargain Basement
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Expand x^(k+1)/(k+1) - (x-1)^(k+1)/(k+1)
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What to do with a mathematic equation
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Solve Inequality: Algebraic Proof of a<b<c<1/12
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Proper Formatting for Math Problems and Solutions
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Angle properties: Angles centered at a point?
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Help with Trig Function: Sec(2x)csc(x)sin(2x) and C=cosx
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How Do You Solve 2^x = 1/√x Correctly?
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Find Solutions to Tan x = Cos x in Radians
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Geometric Inequality: Prove √(2x)+√(2y)+√(2z)≤√(x+y)+√(y+z)+√(x+z)
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Need to place independent values from 0 to 100
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Finding All Pairs of Positive Integers for (22016+ 5)m + 22015 = 2n + 1
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Change of Origin: Locus of P is Straight Line ax+by=k
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Find number of real solutions of system of equations
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M&Ms Probability Help: Understanding P(B|A) in Random Selection Scenarios"
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Finding μ and σ from a normal cumulative distribution function
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Find the Domain and Range of Functions with Given Domain and Range Values
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Factoring binomials with multiple variables p, x, and q
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What is the expected profit for a car rental insurance company?
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Volume of Cylinders: Find V w/ Pi r2h
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Probability insurance company problem
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Crafting an equation using roots of another equation
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Help with probability question
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Double Dice Probability: Event A and B in Sample Space | Solved
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Number of hours of daylight - Periodic functions.
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Finding the magnitude of a vector
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Stuck in algebra factoring polynomial
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Finding volume of Square pyramid
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Apply Area and Pythagorean Theorem to a prism
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Journalizing, posting, trial balance, & financial statements
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How do I prove it is a diagonal?
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Understanding Mohr's Circle Formula: Angle Placement Outside the Triangle
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Would this be sufficient as a proof?
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Prove: |x+y|<|xy+1| for |x|,|y|<1
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Dealing with Nested Radicals: Strategies for Solving Quadratic Equations
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Prove that [itex]\sum_n \frac{1}{n^2} < 2[/itex]
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Quadratic discriminant with tricky algebra
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Portion of Altitude of a Triangle Inscribed in a Circle
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How to Use Vieta's Formula for Finding Roots of a Polynomial?
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Prove ##(1/(a_1+1) ) + (1/(a_2+1) ) ....##
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Efficient Calculation of a Complex Sum with Multiple Components
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Proving Divisibility: Modular Arithmetic and the Pattern of 16^43 - 10^26 Mod 21
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Continuous Ratio Conditions: Product of 1296, Last Term 1/6 of Sum of Means
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Solve for tan(θ) | Homework Equation
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How Do You Calculate Distance Traveled in the Last 20 Minutes of a Drive?
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Checking Spending Habits: How Much for Health Care?
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What Are the Roots of the Equation ##z^4-2z^3+12z^2-14z+35=0##?
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Trigonometry - Solving Trigonometric Equations
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Linear Transformation R4 to R4: KerT + ImT = R4
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Hyperbola's asymptote, where's my mistake?
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Show that f(x) = 0 has only one root
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Solving the following equation for x: ##(x-5)^{-2} = 9##
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Fundamental counting principle
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Tough geometry problem about triangles, proof
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Solution to quadratic equation
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Can You Solve for the Positive Definite Matrix with Eigenvalues 1 and 2?
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Can you solve these 2 equations with 3 variables and prove the solutions?
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Solve the Parenthesis Conundrum for -36: Tips and Tricks
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Linear Algebra: 2x2 matrix raised to the power of n
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Partial fraction decomposition using matrix
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Simultaneous equation involving cos, sin
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Partial fraction decomposition exercise 2
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What is the car leasing calculation formula
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[Statistics] Independent vs. Dependent Variables
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Linear Algebra: Matrix Transformation
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Why Does My Calculation Differ from the Calculator's Result?
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Simplifying Product Homework: Combinatorics Problem on Object Arrangements
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Diagonalizability of Singular Matrices: Investigating Rank and Eigenvectors
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Solving Harder Trig Identity - Peter's Question
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How much of a 10 liter 30% acid solution must be replaced
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How Do You Calculate Population Growth Using Exponential Functions?
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How much of a 5 gallon 40% salt solution should be replaced
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Domain and Range of a Ferris Wheel: Explanation and Solution
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