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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Solving inequalities in precalculus
- brainygirl
- · Replies 6 ·
Verifying Geometric Series Formula: \sum\limits_{k = 0}^N {r^k }
- Benny
- · Replies 4 ·
Average speed for a round trip at different speeds
- Tom McCurdy
- · Replies 4 ·
Electrical Circuit: Finding Max/Min Voltage in 5 min
- Koyuki
- · Replies 1 ·
Greatest integer function: Textbook wholly inadequate
- alancj
- · Replies 4 ·
Finding the Area of a Triangle (using determiants)
- Noone1982
- · Replies 4 ·
How Many Different Combinations?
- sjaguar13
- · Replies 11 ·
How to prove this trig equation
- mohlam12
- · Replies 3 ·
Can Transcendental Equations Like x^2 = sin(x + 2) Be Solved Algebraically?
- Atomos
- · Replies 1 ·
Direct, and Inverse Proportion; Invariants.
- Faizan Sheikh
- · Replies 1 ·
A seemingly impossible problem from my teacher
- Kbecker
- · Replies 3 ·
I have a hard time recognizing transformations of functions.
- Intr3pid
- · Replies 1 ·
Solving sin(θ) = ½(1/cos(θ) + cos(θ))
- jamjar
- · Replies 2 ·
Splitting 500 dollars between two people using ratios
- TSN79
- · Replies 6 ·
Calculating Number of Folders: 4^4 + 4^3 + 4^2 + 4^1
- WarrickF
- · Replies 1 ·
Max Water Flow from 12" Alum Gutter
- thesandsam
- · Replies 1 ·
Calculating Probability of Winning Candy for 10 Students
- Shanelani2006
- · Replies 1 ·
Statistics: sample median, means, s.d. vs sample size
- jhson114
- · Replies 2 ·
How do I perform transformations of functions?
- Intr3pid
- · Replies 9 ·
Can't remember the right word
- Harriet12
- · Replies 3 ·
Is there an easy way to learn Logic?
- Jadelyn
- · Replies 2 ·
Solve System of Equations Using Gaussian Elimination
- Bucky
- · Replies 2 ·
Solve Einstein's Math Problem: 1-9=100
- celery
- · Replies 4 ·
Finding the equation of a parabola
- Flatland
- · Replies 3 ·
Absolute Values: Is it a Mistake or Something I Don't Know?
- Jeff Ford
- · Replies 5 ·
Find Largest Area Enclosed by Rectangle w/ Given Parameters
- merikukri
- · Replies 3 ·
How Can Matrix Theory Predict Subscription Trends in a Concert Series?
- LakeMountD
- · Replies 4 ·
Solve d²y/dt² + 3dy/dt + (25/4)y = 0 using complex exponentials
- Pixter
- · Replies 1 ·
Can you determine if a function is odd or even just from the exponents?
- math nerd
- · Replies 1 ·
Express -2sin3x - 4cos3x as a single sine function
- Physics is Phun
- · Replies 2 ·
Sum of First 20 Terms of Arithmetic Series: 131+235
- UnD
- · Replies 3 ·
How do you solve x^2 + 2 = 0 and x^4 + 4 = 0?
- Meh
- · Replies 10 ·
What is the correct way to calculate percent increase in math problems?
- TSN79
- · Replies 3 ·
Negate Uniqueness: Check Correctness
- Jeff Ford
- · Replies 2 ·
Finding the equation of a circle from given point on the graph
- liz
- · Replies 4 ·
Express cos(4t) + √3·sin(4t) as A·cos(u-v)
- Troll
- · Replies 3 ·
Solving for v in P=[RT/(v-b)]-[a/v(v+b)T^0.5]
- eric99gt
- · Replies 3 ·
Finding a formula of a math problem
- laker_gurl3
- · Replies 4 ·
What Is The Probability Of Picking A 3 Digit Number Divisible By 7
- mathelord
- · Replies 1 ·
How can I solve the sum of this series without differentiation?
- jamjar
- · Replies 9 ·
Checking solutions for exponential equations with powers
- discombobulated
- · Replies 4 ·
Probability: 2 People Have Bags of 60 Marbles
- dnt
- · Replies 9 ·
Solving 2y² + xy = x² + 3 for y
- Jeff Ford
- · Replies 6 ·
Linear Algebra question concerning matrices
- insertnamehere
- · Replies 2 ·
Solve Easy Precal Questions: Quadrant II, Sin 2(0\), Trig Expressions
- raross
- · Replies 3 ·
Inverse of y = [(e^x)-3]/[(e^x)+1]
- jarrodtuck1
- · Replies 4 ·
Solving for Minimum Point of Curve C: x2 + 2x + 4
- discombobulated
- · Replies 7 ·
How Accurate Is the Binomial Approximation for Small x Values?
- Bucky
- · Replies 1 ·
Reducing x^5 in partial fractions
- zanazzi78
- · Replies 1 ·
Solve Math Problem: Finding i Given i_a and n Terms
- badman
- · Replies 3 ·
Prove that X, A, and Y lie in a straight line using triangle medians
- Jarvis Bull Dawg
- · Replies 2 ·
Solving Fractions with Roots: an Example
- james_rich
- · Replies 2 ·
How do you get rid of the SIN() function to solve for x?
- r3dxP
- · Replies 5 ·
What is the radius of the circle?
- GJBenn85
- · Replies 9 ·
Solve Binomial Expansion: (2/x^2-x)^6 - No x Term
- zbobet2012
- · Replies 7 ·
Percent Difference w/o A: How to Calculate
- badtwistoffate
- · Replies 1 ·
Linear Combination of Cosine Function
- g9s0x
- · Replies 1 ·
Solution to an exponential equation
- Kb1jij
- · Replies 6 ·
How do you find roots of cubic equations?
- uob_student
- · Replies 8 ·
How Do You Prove This Trigonometric Identity in a Triangle?
- mohlam12
- · Replies 6 ·
Binomial Theorem - small values of x and approximate values
- Bucky
- · Replies 7 ·
A project with some math questions just need to know how to do them
- kevinlikesphysics
- · Replies 6 ·
Calculate Angle C with Tail-Tip Method
- Confused one
- · Replies 6 ·
What is the square root of complex numbers?
- UnD
- · Replies 3 ·
Factors of polynomial with fractional powers
- hustler
- · Replies 4 ·
Conditional Probability Traffic light question
- Pure Canuck
- · Replies 2 ·
Proving three trigonometric identities
- cscott
- · Replies 7 ·
Derive a trigonometric equation for the volume of the cone
- Atomos
- · Replies 5 ·
Proofing: sqrt(7+sqrt(48))+(sqrt(7-sqrt(48))=4
- Dwellerofholes
- · Replies 10 ·
Simplifying sin(a)sin(b-c) + sin(b)sin(c-a) + sin(c)sin(a-b)
- tatoo5ma
- · Replies 10 ·
Solving Trigonometric Inequalities in a Given Interval
- mohlam12
- · Replies 4 ·
Solving 1+cos(x)+cos(2x)=sin(x)+sin(2x)+sin(3x)
- mohlam12
- · Replies 3 ·
Solving Inflated Series: Sum of First 20 Terms of a=r^k-1
- member38644
- · Replies 1 ·
Proving the Identity: sinA/(1+cosA)=tan(A/2)
- brandon26
- · Replies 3 ·
Algebra 2. Transformation of Fucntions.
- njkid
- · Replies 2 ·
Solve Identity: 1/(cosA+sinA) + 1/(cosA-sinA)=tan2AcosecA
- brandon26
- · Replies 8 ·
Simple Complex number problem,
- UnD
- · Replies 3 ·
Solving system of linear equations
- pinki82
- · Replies 3 ·
Finding Dimensions of Vector Subspace Spanning a Set
- Pearce_09
- · Replies 1 ·
When Does Vector Addition Equal the Sum of Magnitudes?
- antiflag403
- · Replies 1 ·
Relationship between circles inside and outside an equilateral triangle
- momentum
- · Replies 9 ·
Trig Identity: Solving \frac{\cos^2 \theta}{1 + \sin^2 \theta} = \sin \theta
- cscott
- · Replies 11 ·
Generic mathematical definitions of the conics
- DivGradCurl
- · Replies 3 ·
Regression homework for statistics 1001
- chelle
- · Replies 1 ·
Solving f(x) = 5^sqrt(2(x^2)-1)
- ludi_srbin
- · Replies 6 ·
Finding an expression for log x given y = x^2(a+z)
- Pepsi
- · Replies 6 ·
Solve Trig Identity Problem: Eliminating θ from x=2+cscθ and y=1/4tanθ
- Briggs
- · Replies 7 ·
Sum of Roots of x^3 - mx^2 + nx - 1 = 0
- an_mui
- · Replies 6 ·
Probability Problem: 2 Ticket Draw, What's the Odds?
- chocok
- · Replies 4 ·
Trig Identity: Solving \cos \theta (\tan \theta + \cot \theta) = \csc \theta
- cscott
- · Replies 11 ·
Simplifying 1/(s+ia) to separate real and imaginary parts
- FrogPad
- · Replies 2 ·
Why is sin²θ + 2sinθcosθ - 3cos²θ = 0 giving wrong answers?
- cscott
- · Replies 8 ·
Matrix Applications in Political and Business Settings
- speed02
- · Replies 3 ·
Trig Product: Simplifying sina+sinb+sin(a+b) as a Product
- tatoo5ma
- · Replies 3 ·
Solving Trig Problem: Showing Sin(1/9pi) to Sin(4/9pi)=3/16
- mohlam12
- · Replies 3 ·
Sample Space for Random Exp: {1,2,3,4,5,6}
- doozy1414
- · Replies 1 ·
Solving 3 cos x + 4 = 0 cos x = -4/3
- cscott
- · Replies 29 ·
Solving for acceleration with multiple a terms in an equation
- JoshHolloway
- · Replies 11 ·
Can someone assist with finding a perpendicular line in standard form?
- tamilan
- · Replies 3 ·
Does W(2,-1) Lie on UV's Perpendicular Bisector?
- tamilan
- · Replies 3 ·