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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A basic algebra question (no calculator)
- Naga360
- · Replies 2 ·
Odds of getting 1, 2, ... 8 lines in the well game
- ryan8200
- · Replies 4 ·
Find the probability from the expected value?
- kylebutler
- · Replies 2 ·
Find the number of n that can be divided by 7
- songoku
- · Replies 11 ·
Don't understand this conditional probabillity example
- thisischris
- · Replies 2 ·
Finding vertex of quadratic equation?
- skyza
- · Replies 12 ·
Lines and Planes: How Do They Intersect?
- Waking-Up
- · Replies 1 ·
Contrapositive Proof of Theorem: x > y → x > y+ε
- trebolian
- · Replies 5 ·
How do I find the other roots of a polynomial if one root is given?
- skyza
- · Replies 6 ·
Solving for Line FC Using the Pythagorean Theorem
- Cyclopse
- · Replies 1 ·
Packing 14 files onto 4.7GB DVD discs
- kenny1999
- · Replies 8 ·
Polynomial long division before partial fractions with (x^2+7)(x-2)
- n31son
- · Replies 4 ·
Shortest Distance in Euclidean Geometry: Proven or Definition?
- aaaa202
- · Replies 3 ·
Range of a function without graph
- Brosip
- · Replies 2 ·
Percent of students making 1200-1600 computations per month
- lolphysics3
- · Replies 2 ·
Finding Eigenvalues and determine if there are invariant lines
- Luscinia
- · Replies 2 ·
Conditional probability with multiple correct answers
- kenny1999
- · Replies 5 ·
Finding cos(u+v) given sin(u) and cos(v) with angle ranges
- e^(i Pi)+1=0
- · Replies 3 ·
Discrete math, proving the absorption law
- rubenhero
- · Replies 2 ·
Probability of drawing two marbles with replacement
- kenny1999
- · Replies 3 ·
Finding decimal interpretations of the 8-bit hex value 0xD1
- TranscendArcu
- · Replies 2 ·
About probability without replacement.
- kenny1999
- · Replies 4 ·
Probabillity of an event happening given union and intersection
- thisischris
- · Replies 4 ·
Tom Throws a Fair Dice: Finding Probabilities
- kenny1999
- · Replies 3 ·
Solving a Logarithmic Equation with an Irrational Result
- e^(i Pi)+1=0
- · Replies 6 ·
Really odd problem in geometry?
- Frogeyedpeas
- · Replies 12 ·
Surface Area of Shoe Box Shape to Maximize Volume
- JuliusDarius
- · Replies 3 ·
How Tall is an Infinite Stack of Russian Dolls?
- JuliusDarius
- · Replies 8 ·
Is My Calculation Correct for O.4^(|x-2|/|x+2|) = 0.4^2?
- Plutonium88
- · Replies 5 ·
How Many Terms Are in the Geometric Sequence?
- chikis
- · Replies 16 ·
Vector manipulations and stuff
- spaghetti3451
- · Replies 2 ·
Why does the range of cot-1(x) differ from tan-1(x)?
- pcm
- · Replies 9 ·
Negating a universal statement over a set with existential quantifiers
- cris(c)
- · Replies 1 ·
Triangle ABC with vertices as position vectors from origin O
- charmedbeauty
- · Replies 5 ·
Calculate the numbers of ways to arrange 6 letters out of 7 letters of
- xender_c
- · Replies 2 ·
Rules of Implication: Is [(P implies A) etc] True?
- cris(c)
- · Replies 2 ·
How Do You Calculate Probabilities for Different Sizes and Types of Shirts?
- kenny1999
- · Replies 6 ·
What is the Probability of Passing a Test by Randomly Guessing?
- kenny1999
- · Replies 2 ·
How Many Cases Do I Need to Consider for Proof by Contradiction?
- cris(c)
- · Replies 6 ·
Linear Algebra Help: Nullspace & Rangespace Basis | f: P3 → M2x2
- andyk23
- · Replies 2 ·
Sampling distribution of mean item number?
- Economics2012
- · Replies 8 ·
Showing that (m n) + (m n-1) = (m+1 n).
- Matthewkind
- · Replies 26 ·
Why do α², β² and 1/α, 1/β give the same equation?
- th4450
- · Replies 1 ·
Solving for θπ using substitution with variable z
- Pepala
- · Replies 3 ·
How Do You Find g(x) When f(g(x)) Equals a Different Function?
- Gshandle
- · Replies 4 ·
Solving for x in an Exponential Equation
- steveandy2002
- · Replies 6 ·
Can Inequality with Factorial Be Proven without Induction?
- cupcakes
- · Replies 4 ·
(15,11) Hamming Code, too work out how to calculate check digits
- jackscholar
- · Replies 1 ·
Drawing (not too simple) Cosine waves on the x and y axis.
- harmonie_Best
- · Replies 1 ·
Prove trigonometric identity and determine a counterexample
- euro94
- · Replies 2 ·
Normal distribution percentage problem.
- MACHO-WIMP
- · Replies 5 ·
I have a exponetial graph but how do I calculate results?
- Newbie_
- · Replies 5 ·
How Do You Determine Horizontal Shifts in Sinusoidal Functions?
- DoomBringer2
- · Replies 3 ·
Probability of shuffling properly
- Pzi
- · Replies 1 ·
Probability of picking someone who opposes and favors
- MACHO-WIMP
- · Replies 1 ·
How Do You Algebraically Solve for n in Compound Interest Equations?
- e^(i Pi)+1=0
- · Replies 5 ·
Solving Angle of Elevation Problem: 200 ft, 70°, 82°
- AddversitY
- · Replies 2 ·
Probability of getting 4 aces out of a hand of 5
- Unite1133
- · Replies 1 ·
Closed form expression for this?
- aaaa202
- · Replies 1 ·
Proving Injection in Composite Functions
- dijkarte
- · Replies 10 ·
What is the inverse of the function ƒ(x) = ex?
- livestrong136
- · Replies 3 ·
Naming a triangle for a vectors question
- mazz1801
- · Replies 2 ·
Partial Fractions: Simplifying Unfactorable Denominators
- hqjb
- · Replies 4 ·
What is the probability a person’s cholesterol
- mcknia07
- · Replies 3 ·
Solve |3x-7|-|x-8| > 4 (solve algebraically)
- Plutonium88
- · Replies 6 ·
Find Domain Of: √(log1/5(1/Sin5x))
- Plutonium88
- · Replies 2 ·
More a question to some conceptual understanding of combinatorics. The
- aaaa202
- · Replies 1 ·
Finding σ for scarves within 10 cm of mean with 90% requirement
- FeDeX_LaTeX
- · Replies 1 ·
Find area ratio of triangle ADF to product AG·AE
- songoku
- · Replies 14 ·
Can You Solve cos√x = cosx Correctly?
- Plutonium88
- · Replies 16 ·
Boat crossing river to upstream location with parametric equations
- cjh12398
- · Replies 1 ·
What is the Area of the Parallelogram?
- τheory
- · Replies 2 ·
Arranging & Combining Equations (problem)
- drsponge
- · Replies 4 ·
Prove that there are 3^n n-digit numbers formed with 4, 5 ,6
- tonit
- · Replies 4 ·
How Do You Simplify the Square of Complex Conjugates?
- charmedbeauty
- · Replies 1 ·
Find the terms that add up to 1010100
- kscplay
- · Replies 5 ·
Rearranging equation to find back gate bias
- OnceMore
- · Replies 2 ·
What Went Wrong? Solving for X in an Inequality
- jrdunaway
- · Replies 4 ·
How Does the Probability of Failure Change in Synchronous Machine Operations?
- topgun08
- · Replies 2 ·
Solve the Equation getting rid of square roots
- Plutonium88
- · Replies 9 ·
Simple Geometry problem is stumping me
- PotentialE
- · Replies 3 ·
Two grids, one rotating, share equivalent x-y coordinates with different values.
- Rlafrog
- · Replies 1 ·
Signs of sin 2x, cos 2x, tan 2x from sin x = -3/5 in quadrant III
- kieth89
- · Replies 6 ·
How Do You Solve cosθ = sin2θ/2 Using Trigonometric Identities?
- theintarnets
- · Replies 1 ·
What is the Smallest Surface Area of a Crate Delivered by Canada Post?
- S.R
- · Replies 2 ·
Use standard identities to express
- menco
- · Replies 3 ·
What does an arrangement mean in this permutations problem?
- cupcakes
- · Replies 8 ·
Algebra Problem, solving for the waterweight of grapes?
- PotentialE
- · Replies 2 ·
Reasoning and Writing Question, what's your interpretation?
- PotentialE
- · Replies 3 ·
Algebra Problem, solving by rearranging
- PotentialE
- · Replies 7 ·
Finding the error in a proof that 2 = 1
- jrdunaway
- · Replies 4 ·
Express 3(√3+√5+√7)² as A²+B²
- cupcakes
- · Replies 9 ·
Fractions - showing that they are equivalent
- aaaa202
- · Replies 2 ·
Transforming Lines to Circles in the w-plane
- conorordan
- · Replies 3 ·
How Do I Graph a Piecewise Function?
- skyza
- · Replies 24 ·
Vector and parametric equations for the z-axis
- livestrong136
- · Replies 2 ·
Calculating Joint Conditional Probability with Independent Variables
- Invincible9
- · Replies 1 ·
Permutation Question: Arranging 3 Cards from 6
- Michael_Light
- · Replies 5 ·
Equations with sine and cosine.
- LogicX
- · Replies 19 ·
How to find an unknown in a cubic equation iF you are given a factor?
- Beurre
- · Replies 6 ·