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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Prove the simultaneous equations have two distinct solutions for all k
- jinx007
- · Replies 7 ·
Calculation of the adjusted mean
- thereddevils
- · Replies 5 ·
Probability of Samples Containing Less than 1.6 mg of Suspended Particles?
- thereddevils
- · Replies 2 ·
Simplify (2^(n+4) - 2·2^n) / (2^(n+2)·4)
- dh743
- · Replies 4 ·
How to predict the length of a rec-/depression?
- moonman239
- · Replies 1 ·
What Determines the Rank and Dimension of a Matrix's Solution Space?
- dylanpuw
- · Replies 1 ·
Probability that event A happens before event B?
- moonman239
- · Replies 1 ·
Math problem - solving for a variable
- Matt1234
- · Replies 7 ·
Finding x when y = 0 for y = 3x - x³/2
- jinx007
- · Replies 8 ·
How Do You Solve a Geometric Progression with Sum and Term Constraints?
- jinx007
- · Replies 3 ·
Radius of Intersecting Circles: Arc SPX Length (3/4)*\pi
- Helicobacter
- · Replies 2 ·
Average throw in backgammon with doubles counting twice
- Niles
- · Replies 1 ·
Proof Inequality: g(x) >= f(x) on S of Real Numbers
- Tangent...
- · Replies 2 ·
Number of zeros in factorial of a number
- EighthGrader
- · Replies 2 ·
Shifting/expanding a function?
- andrea1234
- · Replies 14 ·
Story problems for Algebra II/Trig review test
- roquel
- · Replies 1 ·
Probability of waiting 2 seconds for an event with average rate of 2.6 seconds
- moonman239
- · Replies 7 ·
How can I efficiently refresh my knowledge of geometry and algebra?
- madah12
- · Replies 3 ·
Find the Variance of this distribution
- thereddevils
- · Replies 1 ·
Using a hexagonal key on a square-headed screw
- Heirot
- · Replies 6 ·
What is the interval of convergence for the given sequence?
- xllGoliathllx
- · Replies 11 ·
Equivalence between power sets
- dndod1
- · Replies 3 ·
Condition for Parallel Vectors: Determinant Method
- abrowaqas
- · Replies 5 ·
Solving Equation with Negative Exponent ( thank you)
- theanimux
- · Replies 5 ·
Equivalence relation on the Cartesian plane
- dndod1
- · Replies 2 ·
Rectangle inscribed in Triangle
- IB1
- · Replies 2 ·
Finding the Area of a Parallelogram with Given Sides and Angle
- priscilla98
- · Replies 10 ·
How can you prove this using only the ring axioms?
- dndod1
- · Replies 5 ·
Why Does Assuming x Equals 7 Not Prove the Theorem?
- johnnyies
- · Replies 14 ·
Solving Simultaneous equations using Matrices
- theJorge551
- · Replies 5 ·
Help understanding trig ratios
- MATHS LOVERa
- · Replies 4 ·
Arithmetic Progression: Finding the Sum of Terms with Given Conditions
- harimakenji
- · Replies 2 ·
Differentiate e^(-1/2 x) sqrt(1 + 2x) - troubles
- jinx007
- · Replies 14 ·
What is the Probability of Alvin Getting More Heads Than Andy in a Coin Toss?
- thereddevils
- · Replies 9 ·
Solve Isosceles Triangle in Coordinate System
- thereddevils
- · Replies 5 ·
Find Formula for m to P Conversion
- smslca
- · Replies 6 ·
Is f(x)=x^(3/2) or f(x)=x^(1/2) classified as odd or even?
- thereddevils
- · Replies 4 ·
Graphing rocket maximum height function h(v)=Rv²/(2gR-v²)
- mekias4
- · Replies 4 ·
Exponents that have units (how to deal with them)
- MurdocJensen
- · Replies 8 ·
How to Predict the Chance of Getting 12 Heads and 13 Tails from 25 Coin Tosses?
- Jamin2112
- · Replies 6 ·
Calculating the Perimeter and Area of a Square MIKE
- spiritzavior
- · Replies 7 ·
Finding the remainder when 2^1000 is divided by 7
- thereddevils
- · Replies 2 ·
Find Why K is Always Bigger than 1 for e^-t/k * sin2t
- Procrastinate
- · Replies 2 ·
Standard Deviation of test scores
- priscilla98
- · Replies 10 ·
Absolute Value Inequalities: Solving and Graphing
- Spectrum47
- · Replies 5 ·
Why does -a² ≠ (-a)²?
- abelgalois
- · Replies 12 ·
Rate of change question (pretty confusing)
- Sirsh
- · Replies 12 ·
What is the Graph of f(x) = sqrt(a^2 - x^2)?
- GreenPrint
- · Replies 9 ·
Factorize the following expression
- abrowaqas
- · Replies 3 ·
Boolean Algebra: Minimum Sum-Of-Products Expression
- Ithryndil
- · Replies 3 ·
Negative variance from CDF with two pieces
- thereddevils
- · Replies 1 ·
What does [x] mean in graph f(x)=[x]?
- GreenPrint
- · Replies 8 ·
Finding the Bases for kernel and range of linear transformation.
- avister51291
- · Replies 3 ·
Output of system with impulse response h(n) = (1/2)^n-3 U(n-3)
- nien53
- · Replies 1 ·
Is x +/- 3 simplified notation or just shorthand?
- GreenPrint
- · Replies 3 ·
Polar Form of the Equation of a Conic
- themadhatter1
- · Replies 1 ·
Finding z-scores for individual vs sample mean Facebook usage
- charr1010
- · Replies 3 ·
Trig Equations: Solving for x in Given Ranges
- xdeanna
- · Replies 5 ·
How to Calculate Expectation and Variance for a Discrete Random Variable?
- thereddevils
- · Replies 6 ·
Minimizing a vector in a triangle
- Shaybay92
- · Replies 2 ·
Plotting a 3-d surface in spherical co-ordinates
- ask_LXXXVI
- · Replies 2 ·
Inequality proof: sqrt(1+xi^2)-xi < 1, for xi > 0
- Petar Mali
- · Replies 1 ·
Probability of ordering one blue, one white, and one green car
- Tangent...
- · Replies 6 ·
Graphing a piecewise function with closed and open endpoints
- GreenPrint
- · Replies 3 ·
Solving e^x + e^-x = 6
- Philoctetes3
- · Replies 3 ·
The complex exponential function
- James889
- · Replies 1 ·
Area bounded inside the quarter-circles.
- kensaurus
- · Replies 9 ·
What is f(x + h) if f(x) = 10-x²?
- nick850
- · Replies 3 ·
Finding limit of (1/(x+1) - 1)/x as x approaches 0
- themadhatter1
- · Replies 4 ·
Probability that a chip is operative
- SamTaylor
- · Replies 1 ·
Functions, Domains, And equality
- L Huyghe
- · Replies 7 ·
Ln(t) - t = 2; Solve for 't'?
- deltapapazulu
- · Replies 4 ·
Is \sqrt{2} + \sqrt{3} + \sqrt{5} irrational?
- Mantaray
- · Replies 2 ·
What is the pattern for finding the last two digits of 16 to a power?
- thereddevils
- · Replies 9 ·
A Function domain/range question
- L Huyghe
- · Replies 4 ·
How to Rationalize the Denominator of a Radical Expression?
- The legend
- · Replies 6 ·
Proving the formulas for arctanh and arccoth
- Alexx1
- · Replies 6 ·
Solve Arctan 2Arctan(1/3) + Arctan(1/7) = π/4: What's Wrong?
- Alexx1
- · Replies 3 ·
Factoring Quadratic Expressions: Quickly Solve 126x² - 15x - 66
- QuarkCharmer
- · Replies 10 ·
Probability Problem: Queen of Spades?
- Blue_Jaunte
- · Replies 1 ·
Set Notation Question Very Easy
- GreenPrint
- · Replies 2 ·
Finding the range of y = (x² - 4)/(x² - x - 12)
- GreenPrint
- · Replies 15 ·
How to Prove tan3A + tan2A + tanA Equals tan3Atan2AtanA?
- udaibothra
- · Replies 3 ·
A simple problem on linear equation in two variables
- utkarsh009
- · Replies 4 ·
Find All Values of k for Equal Roots in x^2-kx+4=0
- priscilla98
- · Replies 2 ·
Trigonometry problems for NYSE regents
- priscilla98
- · Replies 3 ·
Solving Logarithmic Equations: 2 Problems
- 1/2"
- · Replies 6 ·
Calculate angle from sine and cosine
- batterypack
- · Replies 5 ·
100 hotel rooms and 100 guests?
- mimibajiduh
- · Replies 5 ·
Deleted neighborhoods, missing something about working with inequalities
- eraserhd
- · Replies 1 ·
Difference between functions and line equations
- Rhine720
- · Replies 5 ·
How Many Unique 7-Digit Numbers Can You Form Under Different Conditions?
- jinx007
- · Replies 12 ·
Converting A Polar Equation to Rectangular Form; Equation of a Circle
- themadhatter1
- · Replies 4 ·
Finding the Equilibrium Price and Quantity for a Simple Linear Equation?
- vitaminZ
- · Replies 3 ·
How many hours does it take to fill a 16m x 7m x 7m tank with water?
- mister_tom
- · Replies 10 ·
Converting A Polar Equation to Rectangular Form
- themadhatter1
- · Replies 3 ·
Modulus functions problem sum.
- equilibrum
- · Replies 8 ·
Find Coordinates of Point P in Analytic Geometry
- zafer
- · Replies 1 ·
How Do You Solve for m and n to Make mA + nB + C Parallel to the Y-Axis?
- Greychu
- · Replies 2 ·
Is the Calculation of Arithmetic Means Between Two Numbers Always Intuitive?
- ermac
- · Replies 2 ·