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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Standard deviation and probability for binomial distribution with n=50, p=0.3
- jim1174
- · Replies 1 ·
Proving: sqrt(x+b) - sqrt(x-a) >= sqrt(x+a) - sqrt(x-b)
- asura
- · Replies 2 ·
Simplifying a trigonometric binomial
- Ry122
- · Replies 1 ·
Solve for Theta in bsin30-85.7sin(theta)=0
- Ry122
- · Replies 10 ·
Checking for Vector Subspace Equality in 4-Dimensional Space
- Physicsissuef
- · Replies 10 ·
Perfect Square Polynomial: Finding (a+b) for P(x)=x^4+ax^3+bx^2-8x+1
- ritwik06
- · Replies 3 ·
Finding a basis for vector spaces
- Nickopops
- · Replies 2 ·
Simplifying (3√2)^√2 and solving 3^(2x)-1=3^x+2
- amd123
- · Replies 13 ·
What Is the Equation of a Line Inclined at 130 Degrees Through (0,2)?
- jayar182
- · Replies 5 ·
Calculating Line of Best Fit: Least Squares Method
- EngNoob
- · Replies 4 ·
Deriving second-order Fromm's difference scheme from four points
- flyingcarpet
- · Replies 1 ·
Find Quadratic Equation Given 1 Root: (2^(1/2)+1)
- ritwik06
- · Replies 3 ·
Why does the sock-matching probability seem like 1/2 but is really 1/4?
- samh
- · Replies 14 ·
Checking differentiation answers for product rule, quotient rule, and chain rule
- Dr Zoidburg
- · Replies 7 ·
Why does the square root function return only the positive root?
- kenewbie
- · Replies 11 ·
Vector Cross Product: Perpendicular Vectors lV_1 x V_2l
- horsegirl09
- · Replies 3 ·
Cumulative distribution function with polynomial factor (3 + 2x)²(4 - x)
- PuzzledMe
- · Replies 2 ·
Normal Vector Equation for Plane with n=(2,-2,1) at Distance 5 from Origin
- Physicsissuef
- · Replies 40 ·
Finding Local Maxima and Minima Points for a Cubic Function
- prophet05
- · Replies 8 ·
How do e^lnx and 8^log8x simplify to x?
- escryan
- · Replies 4 ·
Solving a system of inequality
- brooce
- · Replies 8 ·
Proving Sin(x)<=x<=Tan(x) for x Close to 0
- forty
- · Replies 11 ·
Write (2√x + 3)/x as 2x^p + 3x^q
- _Mayday_
- · Replies 10 ·
Half angle identity with horizontal shift in tangent
- dranseth
- · Replies 1 ·
System of Equations: Solving for (x,y)
- prophet05
- · Replies 5 ·
Math 30 pure geometric series
- cathoderay
- · Replies 3 ·
Possible Combinations with 2, 3, and 6: 3-Digit and 4-Digit Numbers
- helpingson
- · Replies 5 ·
How many ways can 12 friends split into groups for 6 movies?
- TbbZz
- · Replies 7 ·
How Do You Convert a Matrix Equation into a System of Equations?
- pandamninator
- · Replies 2 ·
Finding areas of triangles formed in hexagon with squares on triangle sides
- ritwik06
- · Replies 4 ·
How can I optimize costs for a cylindrical can and gas pipe using derivatives?
- JTHMZeroOne
- · Replies 5 ·
Solving Bill and Jill's Line Painting Problem
- ritwik06
- · Replies 9 ·
Proving AD is congruent to AE: How to Use Triangle Congruence Proofs
- Bad_Blood
- · Replies 6 ·
Finding maximum and minimum of r=2-2cos(θ)
- Ashford
- · Replies 2 ·
Visualization of graphs in three dimention
- mritunjay
- · Replies 3 ·
Why is the period of f(ax + b) equal to b/a?
- physixguru
- · Replies 5 ·
Limit comparison test with 1/√(3n-2) giving limit 0
- bcjochim07
- · Replies 1 ·
Finding The area of part of a semi-circle.
- BR24
- · Replies 3 ·
What is the series X + 1(1/x + 1/x^2 + 1/x^3 ...)?
- David George
- · Replies 4 ·
Find union between the two of the solutions
- Physicsissuef
- · Replies 8 ·
Fundamental trignometry problem
- mritunjay
- · Replies 2 ·
Maths Exam in 3 Days: How to Revise Thoroughly
- Learnphysics
- · Replies 6 ·
Rational expressions very simble, but hard for me
- physicsed
- · Replies 3 ·
Calculate the width of the gutter where the depth is 6cms
- Paulo2014
- · Replies 3 ·
Is the Trigonometric Equation {3}^{tg2x}*{3}^{ctg3x}=0 Solvable?
- Physicsissuef
- · Replies 6 ·
How do I simplify sec(x)/tan(x) - tan(x)/sec(x)?
- msdenise15
- · Replies 1 ·
Proof of Unit Circle: AE = Tan(\theta)
- Einstein2nd
- · Replies 5 ·
How to calculate the time it takes for a tree to reach a certain height?
- Paulo2014
- · Replies 28 ·
How many exchanges are needed to serve a city of 80,000 people?
- Curtiskr
- · Replies 1 ·
Ratio of elevation angles to view tops of two trees
- chantalprince
- · Replies 6 ·
Quadratic Equation - Solving for x
- Larrytsai
- · Replies 13 ·
3rd degree exponential polynomial
- W3bbo
- · Replies 11 ·
Quadratic Equations: Find Integral Values of 'k' for 2 Rational Solutions
- ritwik06
- · Replies 2 ·
Sum Real x: Solving ((2^x)-4)^3 + ((4^x)-2)^3
- ritwik06
- · Replies 1 ·
Eliminating the parameter from x(t)=2t-1 and y(t)=t^2
- shauna_o
- · Replies 3 ·
How Many Kilograms of Bananas Did the Zookeeper Buy?
- Paulo2014
- · Replies 30 ·
Solving the Equation: (4/x)-(3/2x)=5
- Paulo2014
- · Replies 4 ·
How long does it take the giraffe to weigh 85 kg?
- Paulo2014
- · Replies 31 ·
Question on functions (absolute fns.)
- rock.freak667
- · Replies 1 ·
Find Where Y=cosx is Decreasing: -π to π
- rocomath
- · Replies 5 ·
Finding lim x→0 (3/x² - 2/x⁴)
- caesius
- · Replies 8 ·
Factoring -x³-5x²+135x-150 for eigenvalues
- snoggerT
- · Replies 2 ·
Solving sin²x = 1/4 in Quadrants 2, 3, and 4
- alpha01
- · Replies 1 ·
What is the Equation in Fraction Form for Solving a Linear Equation?
- Paulo2014
- · Replies 12 ·
Solve Equations using a Matrix
- 2slowtogofast
- · Replies 4 ·
What is the derivative of f(x)=-x^3+4x^2 at (-1,5) using the limit definition?
- Precal_Chris
- · Replies 65 ·
How to factor x³+6x²-12x+8=0
- snoggerT
- · Replies 1 ·
Simplify the following formula with Gamma functions
- montoyas7940
- · Replies 7 ·
Find Derivative of f(x)= 1/(2x-4) Using Limit Definition
- Precal_Chris
- · Replies 22 ·
How to express the domain of y = √cos x in mathematical notation
- Calixto
- · Replies 2 ·
What is the e^At Problem for a 4x4 Matrix?
- jahandideh
- · Replies 2 ·
Transform y = 5cos3x to y = cos3x + 6
- Calixto
- · Replies 3 ·
How Do You Determine the Minimum Value of a Quadratic Function?
- Ewan_C
- · Replies 3 ·
Equations for Symmetric Lines in Triangle ABC
- Physicsissuef
- · Replies 3 ·
Finding derivatives using the limit definition
- Precal_Chris
- · Replies 5 ·
Find Slope of Graph at (-1,3) with Limit Process
- Precal_Chris
- · Replies 3 ·
Line parallel to y-axis through point (-4,-5)
- Physicsissuef
- · Replies 12 ·
Checkers game, getting the piece i've jumped overs location
- Dave2041
- · Replies 2 ·
Solving Mistake in my Book: (b-a)^2/12
- montoyas7940
- · Replies 4 ·
How Does the Trapezium Rule Apply to Unequal Widths in Integration?
- rock.freak667
- · Replies 2 ·
Convex Subsets of Ordered Sets: Interval or Ray in Topology?
- Ka Yan
- · Replies 2 ·
Linear programming with three customers and factory capacity constraints
- Foilist
- · Replies 2 ·
How to Prove arctan(1/v) + arctan(v) Equals π/2 Using a Triangle?
- Calixto
- · Replies 10 ·
How can I find a point that is equidistant from two non-parallel lines?
- Physicsissuef
- · Replies 8 ·
What was the per capita bottled water consumption in the U.S. 10 years ago?
- bjoyful
- · Replies 4 ·
What are the solutions to csc x + 2 = 0 for 0 <= x < 2 \pi?
- iBankingFTW
- · Replies 8 ·
Linear Map f:R^2 to R^3 with Given Inputs (1,2) and (2,1)
- Physicsissuef
- · Replies 15 ·
Matrices - Economics based question
- t_n_p
- · Replies 1 ·
Finding unknown matrix a, when aB=C
- forrestm
- · Replies 4 ·
Refresh my memory , Inverse Trig
- rocomath
- · Replies 7 ·
Forgotten Fractions? Get Guidance Here!
- jin.cao
- · Replies 5 ·
Prove that cos 20 is irrational
- xax
- · Replies 4 ·
Why Do Fundamental Trig Identities Confuse Me?
- WastingBody
- · Replies 1 ·
Printable chart of basic trigonometric identities
- jayar182
- · Replies 1 ·
Solving the Crossed Ladder Problem
- kingredg
- · Replies 9 ·
Constructing a Piecewise Continuous Function at a Single Point
- gaborfk
- · Replies 5 ·
How Does Daylight Vary by Month Using a Sinusoidal Function?
- Calixto
- · Replies 2 ·
Are the following functions? Give domain and range
- ritwik06
- · Replies 5 ·
Price elasticity of demand when quantity stays constant
- Kaleb
- · Replies 2 ·