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.
Threads
Which method proves (a/b)÷(c/d) = (a·d)/(b·c) better?
- dianzz
- · Replies 3 ·
Converting logarithmic equations to exponential form and combining logs with coefficients
- math4life
- · Replies 3 ·
What is the proof for divisibility of prime numbers?
- andrew34765
- · Replies 2 ·
Finding (p+q)(x) and (p/q)(x) with p(x)=x²-5x and q(x)=x-5
- math4life
- · Replies 2 ·
What Is the Probability a Moviegoer Waits Less Than 20 Minutes?
- yitriana
- · Replies 3 ·
Detector double false hit probability
- LennoxLewis
- · Replies 7 ·
What are the eigenvalues and eigenvectors of matrix A = [2 2; 3 1]?
- fuzzyorama
- · Replies 15 ·
Solving (2^(2x))+(2^x)-12=0 and 3*4^x+4*2^x+8=0
- Scrythe
- · Replies 7 ·
How Do You Solve the Equation x^3 - x - 1 = 0?
- SELFMADE
- · Replies 6 ·
Elliptical Equation of a Spotlight
- jarate_master
- · Replies 4 ·
Given angle A and two sides, find Angle B.
- JacklinH.
- · Replies 5 ·
Proving angles are equal using tangent-chord theorem and parallel lines
- DERRAN
- · Replies 1 ·
Area of a sector without knowing the angle (can't use a calculator)
- Paulo Serrano
- · Replies 6 ·
How do I find the square root of 3 - 2\sqrt 2?
- deancodemo
- · Replies 4 ·
Hypothesis Testing in Statistics
- war485
- · Replies 4 ·
Vector space several questions
- Дьявол
- · Replies 16 ·
Can 4/3(sin theta) = theta be algebraically solved?
- choob
- · Replies 14 ·
Complex Numbers using Argand Diagram
- cyy91
- · Replies 6 ·
Finding the magnitude of vector sum AB + BC
- hahutzy
- · Replies 9 ·
Weight of Samples in Each Stratum of Population
- DragonPetter
- · Replies 4 ·
Solving equation with negative exponents
- colts_R_best
- · Replies 3 ·
General Determine 2sinx + cosecx - 3 = 0
- DERRAN
- · Replies 7 ·
Statistics with confidence intervals
- war485
- · Replies 3 ·
How to sketch the graph of cos x divided by x + π/2
- Chewy0087
- · Replies 10 ·
Linear Independence to Determining Vectors' Dependence"
- Gregg
- · Replies 5 ·
How Do You Factor the Numerator of a Rational Function to Find Intercepts?
- math4life
- · Replies 2 ·
Finding invariant lines of the form y=mx for matrix transformations
- Gregg
- · Replies 5 ·
Constants in a system of equations that makes the system consistent
- Gregg
- · Replies 6 ·
Finding the Resolved Part of a Vector in a Given Direction
- Gregg
- · Replies 5 ·
Express a as a linear combination of b and c
- Gregg
- · Replies 2 ·
How to calculate angle in analytic geometry
- DERRAN
- · Replies 5 ·
Solving Equations: Det as Product of 4 Linear Factors
- Gregg
- · Replies 4 ·
What Value of k Ensures Consistency in These Simultaneous Equations?
- Gregg
- · Replies 1 ·
Solving Linear Equations (Matrices)
- Gregg
- · Replies 1 ·
Solving an Equation in [-90,0]: Sec2A-3tanA-5=0
- DERRAN
- · Replies 3 ·
Why use a parameter to solve this problem when I found another way
- Gregg
- · Replies 5 ·
Solve m/3 - m/5 = 4 for m
- Jenninifer
- · Replies 10 ·
Express cos 18 and tan 54 in terms of sin 54
- DERRAN
- · Replies 2 ·
Does a vector in polar coordinates represent rotational force?
- schlynn
- · Replies 2 ·
Determining if a piecewise function is one-to-one and onto
- Matty R
- · Replies 19 ·
Distance from a point to a plane.
- Gregg
- · Replies 1 ·
Finding rotation angle for a 3×3 matrix with axis (1,1,1)
- Gregg
- · Replies 5 ·
Factoring a determinant with powers of a, b, c into linear factors
- Gregg
- · Replies 4 ·
Find Invariant Lines of Matrix Transformation y=mx+c
- Gregg
- · Replies 1 ·
Finding slopes mPR and mRN in analytical geometry problem 1.2.1
- DERRAN
- · Replies 1 ·
Trig: Solving 6cosA+3=2sinA with Given Conditions
- DERRAN
- · Replies 4 ·
What is the formula for finding the sum of the first 50 odd numbers?
- gabrielh
- · Replies 17 ·
Solve h(x)=g(x) without Calculator: General Solution
- DERRAN
- · Replies 2 ·
Finding coordinates of point N in analytical geometry
- DERRAN
- · Replies 2 ·
Area Word Problem + Graph Problem
- math4life
- · Replies 5 ·
How Do You Find the X-Intercepts of a Quadratic Function?
- math4life
- · Replies 2 ·
Finding Zeros of f(x)=x3-3x2-6x+8
- math4life
- · Replies 3 ·
Solve Trig Identity with Cot 3u Problem
- geffman1
- · Replies 3 ·
Probability problem gone horribly wrong
- war485
- · Replies 4 ·
Quadratic equation and absolute value .
- siddscool19
- · Replies 6 ·
Forget the name of it, but i need a review
- austin1250
- · Replies 13 ·
Negative powers on the Windows calculator
- questions_uk
- · Replies 4 ·
Simple Precalculus: Average rate of change
- DarrenM
- · Replies 2 ·
Question on finite and geometric series
- Luceian K
- · Replies 12 ·
What common mistakes should I avoid in trigonometry?
- wajed
- · Replies 1 ·
Understanding Order of Operations in Algebra
- Philoctetes
- · Replies 5 ·
The Remainder Theorem and The Factor Theorem
- Stratosphere
- · Replies 1 ·
Solving Problem with Circles in Backyard: Center (1,-1.5), Radius sqrt(29.25)
- Imperil
- · Replies 4 ·
Proving Congruence with Geometry Proofs
- pmdunn
- · Replies 3 ·
What Is the Radius of a Circle Tangent to the X-Axis?
- Loppyfoot
- · Replies 3 ·
Probability of drawing one 5 and one 6 from discs numbered 0–9
- Larrytsai
- · Replies 7 ·
How can I Solve for a and b in a Simultaneous Equation Quickly?
- boneill3
- · Replies 2 ·
Solving arccos(x) - ln(x) + arcsin(x) = π/2
- wajed
- · Replies 11 ·
Parametric Equations for an Ellipse
- metking92
- · Replies 3 ·
Proving Inequality: x^2 + xy + y^2 > 0 for Non-Zero x and y
- nike5
- · Replies 3 ·
Sum of odd integers greater than 15 but less than 241
- whitehorsey
- · Replies 3 ·
Proofs of max and min formulas for 2 numbers
- nike5
- · Replies 5 ·
Sanity Check: Solving for t in x=12(1-e^-t/RC) with Inversion Method
- parabol
- · Replies 3 ·
Total distance traveled by a bouncing ball with geometric decrease
- Chewy0087
- · Replies 2 ·
Probability of normally distributed life lengths
- boneill3
- · Replies 4 ·
Finding Inflection Points for a Quartic Equation
- rachael
- · Replies 5 ·
Solving Limiting Problems in Calculus
- Jimmy84
- · Replies 2 ·
Finding conditional probability from a cumulative distribution function
- boneill3
- · Replies 2 ·
Binary addition and subtraction with X=10111, Y=101, Z=1001
- rclakmal
- · Replies 1 ·
Circular Permutation problem
- dumpman
- · Replies 6 ·
Solving for x: "1/2*log(5)(x^2-1)=1/4+1/2log(5)(x-1)
- parabol
- · Replies 5 ·
Chebyshev's Theorem Limit Question-Value Greater than 1
- reemsh121
- · Replies 1 ·
I feel bad I can't understand the most simple of algebra
- BadFish
- · Replies 61 ·
Which Bulb Lasts Longer: Brand A or Brand B?
- rclakmal
- · Replies 2 ·
Representing Sets in binary string?
- rclakmal
- · Replies 2 ·
Probability of people having answering machines
- Larrytsai
- · Replies 2 ·
Solving Nonlinear System: 3x2+2y2=35, 4x2-3y2=24
- Stratosphere
- · Replies 3 ·
Intersecting Lines to Solve 2sinx + \sqrt{3} = 0
- Imperil
- · Replies 3 ·
Can Simultaneous Equations Have Multiple Solutions?
- problems
- · Replies 3 ·
Calculating the Probability of Drawing All Diamonds from a Deck of Cards
- gray91
- · Replies 7 ·
Transformations, Algebra Trouble
- Linday12
- · Replies 3 ·
Sine wave equation for water waves with 2s period and 5.2m amplitude
- Imperil
- · Replies 8 ·
How Do You Find the Equation of the Intersection of Two Planes?
- pyrosilver
- · Replies 9 ·
Evaluating piecewise function transformations and finding delta in limit definition
- Jimmy84
- · Replies 5 ·
Rearranging Equations: 3x^2 + 2y^2 = 35
- Stratosphere
- · Replies 5 ·
Trig Ratio Values Using Bow-Tie Diagram: sin 45, cos 60, tan 30, tan 45
- Imperil
- · Replies 1 ·
What does tan px and tan qx mean?
- r_swayze
- · Replies 2 ·
Finding arg(z) for complex numbers and solving equations with conjugates
- vorcil
- · Replies 2 ·
Building sway amplitude: is 100 cm the total range or one-way displacement?
- Imperil
- · Replies 3 ·
How Accurate Are My Calculations for the Engine's Piston Movement?
- Imperil
- · Replies 3 ·