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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Does heating a substance in a closed room raise the room temperature?
- bnd_20191
- · Replies 6 ·
How Do You Multiply Multiple Percentages Correctly?
- chriscarson
- · Replies 28 ·
Finding the Range of the given function
- Kaushik
- · Replies 1 ·
Equation for √x shifted right 2 units and reflected
- naushaan
- · Replies 12 ·
Is this the correct implementation of Fermat's Primality Test?
- user366312
- · Replies 8 ·
Problem 48 from Lial's 2001 text - stuck on algebraic proof
- Hsopitalist
- · Replies 10 ·
Having problems in multiplying the inequalities
- Adesh
- · Replies 19 ·
Angles of certain complex numbers
- nomadreid
- · Replies 15 ·
Math: Question from KAPLAN (statistics)
- Kaushik
- · Replies 8 ·
Finding individual work rates when two people work together
- Kaushik
- · Replies 8 ·
Maths: Question on Ratios, proportions, and percentages
- Kaushik
- · Replies 8 ·
How Can I Calculate the Height of a Building Using Right Angle Trigonometry?
- ciubba
- · Replies 11 ·
How to solve 2sin(x)cos(x) = √3cos(x)
- AzureSekki
- · Replies 4 ·
Solving 0 = cos²(t) − t sin²(t)
- opus
- · Replies 21 ·
Linear transformation representation in non-standard basis
- bonildo
- · Replies 3 ·
Finding the range of f(x) = 10^(sin x) + 10^(csc x)
- baldbrain
- · Replies 13 ·
How do you sketch (x^2-5)^2+y^2=16 without a calculator or software?
- GravitySK
- · Replies 7 ·
Factoring: Is (r+y)^3 the same as [(1+y/r)^3∗r^3] ?
- HappyS5
- · Replies 4 ·
Solving 4*ln(3x)=15 for x
- Witcher
- · Replies 7 ·
Using the Law of Sines - Getting a Domain Error on my Calculator
- opus
- · Replies 8 ·
Might there be a formula to determine when watch hands coincide?
- ckirmser
- · Replies 18 ·
Finding the Simple Interest for a specific year
- Benjamin_harsh
- · Replies 3 ·
Find distance using map measurements
- dudxex
- · Replies 3 ·
Why doesn't √16 = ±4 in the equation 2 - √16 = -2?
- brycenrg
- · Replies 16 ·
Square-Root of a binomial squared
- lightlightsup
- · Replies 4 ·
How Do You Prove Two Triangles Are Similar?
- Marso
- · Replies 4 ·
Finding the sum of this trigonometry series
- songoku
- · Replies 10 ·
Geometric distribution with probability 2/3
- songoku
- · Replies 9 ·
Calculate the roots of -t^2-2t+1
- DottZakapa
- · Replies 14 ·
Finding the the area of the surface at one end of the steel
- chriscarson
- · Replies 7 ·
Square root notation in solving x² = 4
- issacnewton
- · Replies 6 ·
How to Find the Ratio of Areas in a Scalene Triangle?
- songoku
- · Replies 7 ·
How to Graph the Inverse of a Function on a TI-84PlusCE?
- Witcher
- · Replies 3 ·
Graphing θ=π/4 on a Polar Coordinate System
- lightlightsup
- · Replies 9 ·
Eliminating the parameter in parametric logarithmic equations
- Witcher
- · Replies 8 ·
Points on either side of a line
- mmaismma
- · Replies 3 ·
Finding the maximum number of PC sets with no extras using inclusion-exclusion
- fiksx
- · Replies 2 ·
Percentage of a given quantity
- Witcher
- · Replies 8 ·
Sketching the graph of a function
- Setareh7796
- · Replies 6 ·
How to factor out s and distribute the power of 6
- umzung
- · Replies 4 ·
Two geometry problems -- lines and straightedges
- LittleRookie
- · Replies 13 ·
How to find the inverse of a complicated function?
- ColdheartedGod
- · Replies 24 ·
Vector space - polynomials vs. functions
- musicgold
- · Replies 12 ·
Finding initial distance when two objects are 50m apart at different times
- Benjamin_harsh
- · Replies 26 ·
Problem regarding simple interest
- Benjamin_harsh
- · Replies 3 ·
Asymptote of x^3 - x^5 / ( x^2 + 1) and similar curves
- Swamp Thing
- · Replies 5 ·
Induction proof verification ##2^{n+2} < (n+1)## for all n ##\geq 6##
- ciencero
- · Replies 3 ·
What Steps Are Missing to Solve (2x+5)^(x+1)=729?
- Math100
- · Replies 11 ·
Manipulating exponents: not sure how this example is worked out
- geologist
- · Replies 8 ·
Are there any whole numbers that satisfy this equation?
- donglepuss
- · Replies 42 ·
Formula for reimbursement across overlapping health plans
- DianaCorine
- · Replies 2 ·
How to change variables from x to y in a potential energy function
- Moolisa
- · Replies 2 ·
Upper bound height and lower bound height of a 3-ary ordered tree
- fiksx
- · Replies 13 ·
How Far is the Boat From its Original Position?
- Benjamin_harsh
- · Replies 9 ·
How Do Partial Fractions Relate to Trigonometric Substitution?
- askor
- · Replies 17 ·
Finding the angle between vectors a and m, knowing the magnitude of m and n
- piesand
- · Replies 2 ·
Distributing numbers over n buckets
- Akash47
- · Replies 12 ·
What Methods Identify Nonnegative Ranges in Cubic Equations?
- danielp3
- · Replies 3 ·
What are the rules for argument division in complex numbers?
- bonbon22
- · Replies 4 ·
Finding DE:AC when a line through D is parallel to AC
- quee
- · Replies 7 ·
How Long Before Runners A and B Meet at the Starting Point on a Circular Track?
- Benjamin_harsh
- · Replies 7 ·
Finding distance when two objects meet traveling in opposite directions
- Benjamin_harsh
- · Replies 2 ·
What is the ratio after 1 month given certain conditions?
- caters
- · Replies 3 ·
Finding roots of an exponential equation
- Akash47
- · Replies 2 ·
Distance traveled by object A with constant velocity
- Zelderes
- · Replies 18 ·
Calculating something correct up to ##x## decimal places
- Wrichik Basu
- · Replies 7 ·
Is there a simple injection from B to A using tangent function?
- Tjaz Gantar
- · Replies 23 ·
Finding the sum of 1/(n(n+1)) from n=1 to infinity
- martina1075
- · Replies 16 ·
Calculating Probability of Choosing Vowels: Common Mistakes and Solutions
- songoku
- · Replies 6 ·
Simplify this fraction containing imaginary numbers
- serendipityfox
- · Replies 18 ·
How do I prove ABA is a singular matrix?
- wrxue
- · Replies 13 ·
Evaluate Sum - Couldn't Arrive at Answer
- martina1075
- · Replies 4 ·
Calculating Difference Quotients for Scientists
- martina1075
- · Replies 3 ·
(Changing) Limits of a Summation
- martina1075
- · Replies 7 ·
Finding angle X in triangle with inscribed circle
- Richard Quispe
- · Replies 13 ·
Help with 3D Pythagorean theorem problems
- Natasha1
- · Replies 16 ·
Why do we try to find if a subset is a subspace of a vector space?
- musicgold
- · Replies 4 ·
Graphing equations with concentric circles and straight lines
- Raees
- · Replies 3 ·
Finding truth value of each propositional variable.
- sunny79
- · Replies 4 ·
Seating 4 guests on one side: why is 9C4·4!·9C3·3!·11! wrong?
- Crystal037
- · Replies 24 ·
Why is the middle binomial coefficient the largest combination?
- Crystal037
- · Replies 27 ·
A tricky question with complex numbers
- Physics lover
- · Replies 29 ·
Maximum area of semicircle and square with 8 m perimeter
- Mathman2013
- · Replies 11 ·
Sum of a series that tends to infinity
- Physics lover
- · Replies 16 ·
Complex number roots and exponential equations with arguments
- jisbon
- · Replies 39 ·
Calculate the phase angle between two sinusoids
- DryRun
- · Replies 2 ·
Stats: Normal distribution, std dev, mean z score -- find x
- GiTS
- · Replies 2 ·
How to solve summation equations with different indices
- musicgold
- · Replies 9 ·
Field axioms - is there an axiom for multiplication with zero?
- musicgold
- · Replies 6 ·
How should I simplify this product expression?
- musicgold
- · Replies 12 ·
Where Do Chords of Circles Through A(3,7) and B(6,5) Intersect?
- Saitama
- · Replies 13 ·
Question on Probability - been way too long since college
- ckirmser
- · Replies 12 ·
Why are these two angles equal (x=z)?,
- Kamalesh
- · Replies 3 ·
Cube root long division method
- xzibition8612
- · Replies 2 ·
How to prove that line segment BF=tan x.tan y?
- Kamalesh
- · Replies 4 ·
How do i answer this permutation question?
- Biochemgirl2002
- · Replies 1 ·
Solve polynomial using complex number
- songoku
- · Replies 2 ·
What Is the Probability of Drawing a Specific Marble Color Sequence?
- Tajeshwar
- · Replies 8 ·
How to Find the Slope of Points A and B and Compare to Point C?
- Rabinow23
- · Replies 1 ·
Finding the value of a fraction
- songoku
- · Replies 8 ·