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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How much of a 10 liter 30% acid solution must be replaced
- ducmod
- · Replies 4 ·
How Do You Calculate Population Growth Using Exponential Functions?
- Veronica_Oles
- · Replies 4 ·
How much of a 5 gallon 40% salt solution should be replaced
- ducmod
- · Replies 4 ·
Why is the range 1.5 to 17.5 for a Ferris wheel with 7m radius and highest point at 15.5m?
- Veronica_Oles
- · Replies 7 ·
Game of battleship logic puzzle
- late347
- · Replies 4 ·
Find inverse matrix using determinants and adjoints
- ducmod
- · Replies 7 ·
How to 1/4x + 2/9 - 14 = 100
- kyphysics
- · Replies 13 ·
Where Does cos(x) Equal acos(x)?
- irishetalon00
- · Replies 9 ·
Number theory quick calculation problem
- late347
- · Replies 19 ·
What's wrong with my algebraic expression?
- Terrell
- · Replies 4 ·
How to Solve an Exponential Equation with a Mistake in the Second Step?
- Rectifier
- · Replies 3 ·
What Is the Average Reading Rate for Beth's Day?
- zak100
- · Replies 4 ·
Prove 3x3 Skew symmetric matrix determinant is equal to zero
- Bill333
- · Replies 5 ·
What is 2nd Sine? Solving a Triangle with 13.5 Hypotenuse
- Liam C
- · Replies 17 ·
Find probability of certain event, total probability theorem
- AndrejN96
- · Replies 6 ·
A tricky remainder theorem problem
- sooyong94
- · Replies 15 ·
Comparing areas of triangles ABC and A'B'C'
- geoffrey159
- · Replies 6 ·
Show that this equation is inverse square
- brycenrg
- · Replies 5 ·
Can the solution for (1/3)^x = log<a>x be found without using a slider?
- CP2016
- · Replies 3 ·
Finding horizontal distance with a ramp between dock and truck
- Liam C
- · Replies 4 ·
Proving the continued fraction equals the nested radical
- geoffrey159
- · Replies 10 ·
Word problem about distance, rate and time
- paulmdrdo
- · Replies 3 ·
A problem about logarithmic inequality
- ubergewehr273
- · Replies 13 ·
Algebra word problem -- Paying down a debt....
- paulmdrdo
- · Replies 6 ·
Finding the length of the circuit.
- paulmdrdo
- · Replies 1 ·
Solve ACT Word Problem: Find Value of x
- down to earth
- · Replies 2 ·
Find cscθ Given sec θ = -2, sin θ >0
- IntegralDerivative
- · Replies 6 ·
Sum of the angles of a spherical triangle
- harpf
- · Replies 1 ·
Proving 1/3 < log_{34} 5 < 1/2
- ubergewehr273
- · Replies 2 ·
Need the derivation/proof of the method
- Chaos_Enlightened
- · Replies 4 ·
Show these functions are 2 pi periodic
- bbq pizza
- · Replies 5 ·
Show that the T is a linear transformation
- Dank2
- · Replies 10 ·
2nd degree equation difficulty
- late347
- · Replies 8 ·
The rank of the Sum of two matrices
- Dank2
- · Replies 11 ·
About quadrilateral (geometrical problem)
- pizzicato
- · Replies 1 ·
Age table interpretation problem
- late347
- · Replies 5 ·
No of ordered pairs satisfying this equation
- cr7einstein
- · Replies 6 ·
Proving a Trigonometric Identity Involving Inverse Functions
- cr7einstein
- · Replies 5 ·
Finding amount of tea to mix given cost equation
- paulmdrdo
- · Replies 14 ·
Inverse tangents in cyclic order
- cr7einstein
- · Replies 2 ·
Probability math confusion sample space (I think)
- late347
- · Replies 8 ·
How Do I Calculate the Angle Between Vectors in Vector Projection Problems?
- wicked1977
- · Replies 7 ·
Finding period and extending a daylight hours periodic function
- alexandria
- · Replies 3 ·
No idea -- algebraic manipulation involving powers
- Chaos_Enlightened
- · Replies 26 ·
Monic polynomial of the lowest possible degree
- 53Mark53
- · Replies 7 ·
Solving 4 unknowns with 5 equations using matrices
- SteliosVas
- · Replies 10 ·
Express 2 arctan(√((a-b)/(a+b)) tan(θ/2)) as arccos
- cr7einstein
- · Replies 4 ·
What Are the Values of r and s in the Polynomial q(z) with Given Roots?
- 53Mark53
- · Replies 5 ·
Finding coefficients a and b in polynomial with complex zero 1+i
- 53Mark53
- · Replies 22 ·
Why Does 40x Appear in the Quadratic Equation Transformation?
- Tlark10
- · Replies 12 ·
Combinatorics: tennis game with 8 people
- member 587159
- · Replies 8 ·
Finding cos(2π/7)+cos(4π/7)+cos(6π/7)
- terryds
- · Replies 10 ·
Proofing that All Arcs of a Circle = 360 Degrees
- Dousin12
- · Replies 4 ·
Complex numbers in the form a+bi
- 53Mark53
- · Replies 5 ·
Linear Algebra Problem: Constraints for Filling a Dashed Triangle
- arpon
- · Replies 3 ·
How to properly rearrange formula
- Ande Philipo
- · Replies 3 ·
Limit problem ( can't find the mistake)
- Matejxx1
- · Replies 3 ·
Exponential growth and compound interest
- alexandria
- · Replies 4 ·
Arithmetic sequence involving years
- adjacent
- · Replies 12 ·
Weekly cellphone revenue function with price increase and sales decline
- late347
- · Replies 5 ·
Solution Set for cot-1(x)2 -(5 cot-1(x)) +6 >0?
- takando12
- · Replies 4 ·
Proving theorem for polynomials
- Tahoma
- · Replies 2 ·
Verifying compound interest calculation with exponential formula
- alexandria
- · Replies 3 ·
Application of Quadratic Functions that involve finding equation
- Evangeline101
- · Replies 17 ·
Word problem equation linear growth and slope
- late347
- · Replies 4 ·
Algebra age riddle word problem
- late347
- · Replies 9 ·
Sin[θ+(pi/6)] Multiple values?
- KaleLetendre
- · Replies 2 ·
What is the solution to the inverse trigonometry problem with a given range?
- takando12
- · Replies 22 ·
Solving a quadratic in two variables
- zzmanzz
- · Replies 3 ·
Relationship between solution and corresponding graph
- Evangeline101
- · Replies 2 ·
Solving first and second degree equations
- late347
- · Replies 4 ·
Setting up equation for discounted memory sticks problem
- late347
- · Replies 3 ·
How Do You Solve for a Using the Law of Sines?
- MathWA
- · Replies 16 ·
Finding zeros and points on y = 4√(x-2) - 6
- 3301
- · Replies 8 ·
What is the limit of lnx as x approaches a negative number?
- Nipuna Weerasekara
- · Replies 5 ·
Use discriminant for linear and quad. function.
- Evangeline101
- · Replies 7 ·
Multiplying different bases with different exponents
- leroyjenkens
- · Replies 4 ·
Don't understand how eqn 2 was reached from eqn 1.
- Tlark10
- · Replies 2 ·
Function: expressing functions in vertex form.
- Evangeline101
- · Replies 2 ·
Functions:using discriminant to find number of x-intercepts
- Evangeline101
- · Replies 6 ·
What is the remainder when polynomial f(x) is divided by x^3-x?
- terryds
- · Replies 9 ·
Why distribute a negative sign to each term in parentheses
- Teabreeze
- · Replies 8 ·
Angular distance question - how to solve
- pennywise1234
- · Replies 7 ·
What is the fundamental period of sin(x)/sin(x)?
- Ujjwal28
- · Replies 9 ·
Calculating Winning Probability for a Chess Master in a Competition
- Danielm
- · Replies 18 ·
Proving σ([a]) = [5a + 3] is bijective on Z_11
- Danielm
- · Replies 1 ·
Proving an equivalence relation that is also a function equals the identity
- Danielm
- · Replies 1 ·
Normal distribution percentage outside 32 to 116
- helix999
- · Replies 6 ·
Algebra problem (x+(1/x) problem)
- terryds
- · Replies 7 ·
Drawing a force triangle for acceleration down a slope
- 1832vin
- · Replies 9 ·
How many ping pong balls would fit into the Great Pyramid?
- fizixfan
- · Replies 6 ·
If cos³x + 1/cos³x = 0, what is sin 2x?
- terryds
- · Replies 24 ·
Solve Limit Problem: Find a+b for ax+b=25
- terryds
- · Replies 3 ·
Modulus and Argument of Cosh(iπ)?
- struggles
- · Replies 5 ·
Moving i from denominator to numerator in complex fraction
- struggles
- · Replies 8 ·
Solving a Trigonometric Limit Problem
- terryds
- · Replies 4 ·
Question related to nine point centre
- prashant singh
- · Replies 9 ·
Shading in Argand diagrams involving inequalities
- Faiq
- · Replies 2 ·
Solving an equation with logarithms
- Kairos
- · Replies 6 ·
How to write auxiliary lines in a formal geometric proof
- Dousin12
- · Replies 8 ·