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
Find the value of ##a, b## and ##k## in the problem involving graphs
- chwala
- · Replies 6 ·
Find the ##r^{th}## term from beginning and end of ##(a+2x)^n##
- RChristenk
- · Replies 13 ·
Choose 6 pieces of candy from three flavors
- RChristenk
- · Replies 12 ·
Trying to resolve a volume calculation
- narrator
- · Replies 2 ·
Finding a conditional probability from joint p.d.f
- Hamiltonian
- · Replies 4 ·
Proving 17 apples have equal weight from balance equations
- Hill
- · Replies 32 ·
Prove that terms cyclic in ##a,b,c##, are in ##\text{AP}##
- brotherbobby
- · Replies 7 ·
Rounding Errors to nearest 10cm
- paulb203
- · Replies 26 ·
Solve the given inequality Q. 21
- chwala
- · Replies 2 ·
Why is P(X = 2) nonzero for a continuous distribution?
- songoku
- · Replies 8 ·
Show that these equations are linearly dependent using Mathematica
- Lambda96
- · Replies 6 ·
Quantitative reasoning problem
- Chijioke
- · Replies 5 ·
Find the sum of the coefficients of ##(x+y)^{16}##
- RChristenk
- · Replies 5 ·
Why is ##^{2m}C_m## equivalent to ##\dfrac{2m!}{m!m!}##?
- RChristenk
- · Replies 6 ·
De Moivre's theorem with complex number z = -2 + j
- Eng studies
- · Replies 16 ·
Where Did ##(n−r+1)^{th}## Come From in Binomial Expansion?
- RChristenk
- · Replies 3 ·
Find the smallest integer ## a>2 ## such that ## 2\mid a ##
- Math100
- · Replies 3 ·
How to remove zero entries from null space vectors
- mido hoss
- · Replies 10 ·
Complex mapping z ↦ ω = (z − a)/(z − b)
- Hill
- · Replies 5 ·
Partial Permutation, Combination question for buying dogs at the pet store
- Memo
- · Replies 19 ·
How can we fairly distribute food among four people with different appetites?
- robax25
- · Replies 27 ·
What is a point of using complex numbers here?
- Hill
- · Replies 3 ·
How Many Type A Pigs Have 3 DYL Blood in a Herd of 1,000?
- Memo
- · Replies 21 ·
Combination, partial permutation
- Memo
- · Replies 1 ·
Drawing marked balls from an urn
- Hamiltonian
- · Replies 10 ·
Basic counting methods — integers between 1 and 100 that are divisible by 7
- stunner5000pt
- · Replies 19 ·
Why did I get x < 5 instead of x > 5 when solving 4 > 19 - 3x?
- paulb203
- · Replies 8 ·
Why does Galileo's theorem give square roots for bogie crossing times?
- Steels
- · Replies 8 ·
Find an integer having the remainders ## 1, 2, 5, 5 ##
- Math100
- · Replies 7 ·
Basic combinatorics: How many ways can 4 boys and 4 girls sit in a row such that no 2 girls sit together?
- tellmesomething
- · Replies 27 ·
A railway carriage will accommodate 5 passengers on each side
- RChristenk
- · Replies 4 ·
Volume and surface area of "One World Trade Center"
- Hyydrxzen
- · Replies 6 ·
Probability related to cumulative distribution function
- songoku
- · Replies 4 ·
Two link planar robot elbow errors in textbook (Inverse kinematics)
- Ineedhelpwithphysics
- · Replies 3 ·
Poisson Probability Distribution Problem
- Callix
- · Replies 19 ·
Find the value of ##k^2## in the problem involving trigonometry
- chwala
- · Replies 7 ·
Ratio of the sum of ##n## terms of two AP series
- brotherbobby
- · Replies 9 ·
Decompose 4x4 determinant into 24 determinants -- How many are zero?
- zenterix
- · Replies 1 ·
Solve ## 4x+51y=9: x=15+51t, y=-1-4t ##
- Math100
- · Replies 2 ·
Solve the equation: ##\tan x ⋅\tan 4x = 1##
- chwala
- · Replies 4 ·
Is My Proof That ab<a Correct Given 0<a<1 and 0<b<1?
- knowLittle
- · Replies 4 ·
Understanding Cubic Factorization: Solving for Roots with a and -2a
- Argonaut
- · Replies 6 ·
Identifying matrices as REF, RREF, or neither
- crememars
- · Replies 1 ·
Limit to Infinity of Quotient with Square Root - Reducing the Equation
- njh
- · Replies 8 ·
Proving a trigonometric identity with ##\sin^4## s and ##\cos^4## s
- brotherbobby
- · Replies 12 ·
Binomial theorem expansion of (1+3x)(1+3x)/(1+2x))^2
- stunner5000pt
- · Replies 18 ·
Roots of a polynomial mixed with a trigonometric function
- vcsharp2003
- · Replies 14 ·
Difference between -3² and (-3)² ?
- gary350
- · Replies 53 ·
Matrices: if AB=A and BA=B, then B^2 is equal to?
- Rikudo
- · Replies 18 ·
Are the following statements true? (1) a∈{{a},{a,b}} and (2) b∈{{a},{a,b}} true?
- john-ice2023
- · Replies 8 ·
Find the smallest value of angle ##α + β ##
- chwala
- · Replies 11 ·
An inequality involving ##x## on both sides: ##\sqrt{x+2}\ge x##
- brotherbobby
- · Replies 3 ·
Solve the problem that involves ##\cos^{-1} x + \cos^{-1}y##
- chwala
- · Replies 3 ·
Solve the given problem involving: ##\tan^{-1} (2x+1)+ \tan^{-1} (2x-1)##
- chwala
- · Replies 10 ·
Solve the problem that involves diameter of the Bullseye
- chwala
- · Replies 2 ·
Partial fraction decomposition of 1/(x² - c²)
- hackedagainanda
- · Replies 4 ·
Prove that the given inverse trigonometry equation is correct
- chwala
- · Replies 5 ·
Show that the ratio ##x+y:x-y## is increased by subtracting ##y##
- RChristenk
- · Replies 4 ·
I don't get a step with this quadratic question
- Nathi ORea
- · Replies 12 ·
Solve these simultaneous equations
- chwala
- · Replies 6 ·
Solve the given simultaneous equations
- chwala
- · Replies 8 ·
Is ##9\sqrt[3]{-3}## Equivalent to ##-9\sqrt[3]{3}##?
- RChristenk
- · Replies 4 ·
Solve the given simultaneous equations in x^2, x and y
- chwala
- · Replies 1 ·
Solve the simultaneous equations involving x, y, and their squares
- chwala
- · Replies 2 ·
How do I simplify (b-a)/(a-b)?
- Nathi ORea
- · Replies 10 ·
Substitution y=mx for simultaneous equations of equal degree
- chwala
- · Replies 4 ·
Number of ways to partition n persons and probability to form n groups
- songoku
- · Replies 10 ·
Applications of algebraic expressions
- MatinSAR
- · Replies 6 ·
Probability using combinations or alternatives
- njh
- · Replies 12 ·
Basic probability question (1 boy + 2 girls of a group of 7)
- MathMan2022
- · Replies 6 ·
Find the total number of ways of coloring the eight regions
- feesicksman
- · Replies 7 ·
Question about permutation formula -- How to use the formula when r = 0 ?
- songoku
- · Replies 6 ·
Finding angle PSR in triangle PST with angles 81° and 22°
- Chijioke
- · Replies 1 ·
Find the area of the quadrilateral OCBAO
- chwala
- · Replies 8 ·
Calculating Cable Turns for a Job
- Brian82784
- · Replies 5 ·
Solve the problem that involves iteration
- chwala
- · Replies 21 ·
Solve the given problem involving functions: f(x)=|ax-b| and y=f(x)+c
- chwala
- · Replies 19 ·
Solve the given problem involving logarithms
- chwala
- · Replies 18 ·
Prove this variation: If a+b ∝ a-b, prove that a^2+b^2 ∝ ab
- RChristenk
- · Replies 11 ·
Proving trig identities -- Is the method related to the unit circle?
- member 731016
- · Replies 54 ·
Derivative of a piecewise function
- MatinSAR
- · Replies 6 ·
Solving for a, b, and c in this equation for $ revenue for a circus
- PhysicsInept
- · Replies 4 ·
Solve the given problem that involves binomial theorem
- chwala
- · Replies 2 ·
Ideal Straight Line Fit for a Temperature Sensor Output
- Fenrir
- · Replies 2 ·
How Did 1886 Dutch Students Solve This Complex Math Problem?
- BvU
- · Replies 34 ·
Finding compound interest formula
- member 731016
- · Replies 2 ·
Solve the given problem that involves Trigonometry
- chwala
- · Replies 7 ·
Find the possible values of angle ##∠ADB##
- chwala
- · Replies 2 ·
Determine the position vector of ##C##
- chwala
- · Replies 1 ·
Prove that these three ratios are equivalent
- RChristenk
- · Replies 11 ·
Adding square roots of ##i## leading to different answers!
- brotherbobby
- · Replies 21 ·
How to derive (2a(a+1)+1)² from 4a⁴+8a³+8a²+4a+1
- MiddleEast
- · Replies 5 ·
Vector addition and subtraction
- Slimy0233
- · Replies 13 ·
Calculating Radius & Water Depth of a Spherical Bowl
- Chijioke
- · Replies 7 ·
Evaluating the angle theta using inverse sin
- Mohmmad Maaitah
- · Replies 4 ·
Finding the solution to system of 3 equations with 3 unknowns
- member 731016
- · Replies 2 ·
Complex numbers confusion (how they got this expression in orange to become -1)
- member 731016
- · Replies 25 ·
Conceptual question on equations of the form ##x=ay^2+by+c##
- chwala
- · Replies 5 ·
How Do You Form a Linear Equation for the Equipment's Value Over 10 Years?
- nycmathguy
- · Replies 3 ·
Is it possible to find a number x such that 5 < x < 1?
- member 731016
- · Replies 26 ·