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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Solving Odd Digit Divisibility by Five using Permutations
- hms.tech
- · Replies 8 ·
Find n where a_n = 1000^n/n! is maximum
- Saitama
- · Replies 29 ·
Solving for a fixed point on an interval
- ChickysPusss
- · Replies 13 ·
Is the Addition of These Three Binary Numbers Correct?
- kidi3
- · Replies 7 ·
Finding the Value of m in a Complex Number Equation
- Saitama
- · Replies 4 ·
Statistics Question - Find Standard Deviation of 5 numbers but only 4 given.
- JiHbE
- · Replies 4 ·
Show that if A ⊆ B then B^c ⊆ A^c
- GreenPrint
- · Replies 8 ·
Combinations of n objects taken r at a time
- Justin12005
- · Replies 1 ·
Cramer's method for linear equations
- lendav_rott
- · Replies 7 ·
When is A ∩ (A ∪ B)^c empty?
- GreenPrint
- · Replies 8 ·
Testing linear dependence of three vectors
- doctordiddy
- · Replies 2 ·
Algebra problem on final step
- Restless
- · Replies 8 ·
Calculating a Circle Through 3 Points - Equations and Confusion
- zmonk85
- · Replies 2 ·
Partial fractions with 2x^2/(1-x(1+x))
- trollcast
- · Replies 11 ·
Probability problem involving 4 Unions (inclusive OR)
- CoinToss
- · Replies 5 ·
Equation of an ellipse given c and eccentricity.
- bnosam
- · Replies 5 ·
Finding all 2x2 nilpotent matrices
- brownman
- · Replies 2 ·
Word Trig Problem on Health/Medicine topic
- Cold As Ice
- · Replies 15 ·
Is the Formula for the Probability of Symmetric Difference Accurate?
- GreenPrint
- · Replies 3 ·
Solve for x 5/3 = 1/2(x^-1)(y)
- 939
- · Replies 7 ·
Find range of k for k cos²x - k cos x + 1 ≥ 0 for all x
- Saitama
- · Replies 14 ·
Linear programming model for cutting pipes into 140cm, 95cm and 65cm lengths
- sigh1342
- · Replies 3 ·
AM-GM Inequality - Troubles with an example
- Kolmin
- · Replies 4 ·
Coin Combinations: Solving Part a) and Questions for Part b)
- Workout
- · Replies 3 ·
How does a clock with non-uniform hand motion work?
- hms.tech
- · Replies 9 ·
Mean and variance of bikes repaired before wheels run out
- t.war13
- · Replies 2 ·
Symmetries of graphs/Graph theory
- CAF123
- · Replies 9 ·
Rotating a square around a point using rotation matrices
- lendav_rott
- · Replies 3 ·
How did 7((45y+30)/14)+9y become 45y+30+18y?
- 939
- · Replies 6 ·
Find the value of x1^6 +x2^6 of this quadratic equation without solving it
- chloe1995
- · Replies 4 ·
Probability that bulb is defective questions
- schapman22
- · Replies 6 ·
Probability question regarding independent events, where am I wrong ?
- nishantve1
- · Replies 2 ·
Find the domain of this function
- calif2a8
- · Replies 3 ·
A rather straight forward function question.
- Dangshnizzle
- · Replies 4 ·
Logarithms in Systems of Equations
- Mandelbroth
- · Replies 1 ·
What is the Transposition Problem for Algebra?
- FaraDazed
- · Replies 17 ·
Logical Quantifiers: For all such that
- mliuzzolino
- · Replies 5 ·
Sequence of numbers divisible by 7.
- blunted
- · Replies 3 ·
How Do You Rearrange the Equation v = sqrt(2kt/m) to Solve for M?
- jim the duke
- · Replies 5 ·
How Do You Solve an Exponential Inequality with Different Bases?
- scientifico
- · Replies 5 ·
3 variables 3 equations (2 linear 1 quadratic)
- Appleton
- · Replies 4 ·
How to solve a quadratic equation with a negative value for the variable?
- peterpanhandle
- · Replies 3 ·
Possible Measures of Angle C in Triangle ABC with Given Equation
- utkarshakash
- · Replies 4 ·
How do you calculate the Grand Variance?
- nukeman
- · Replies 16 ·
Prove that the greatest angle is 120
- utkarshakash
- · Replies 6 ·
Solving a System of Equations: Understanding F_B
- jgreen520
- · Replies 6 ·
Angle Between Tangents Drawn to Ellipse 3x2+5y2=15 from (2,2)
- Saitama
- · Replies 7 ·
Calculating Radioactive Decay of 18F Isotope in PET Scanners
- hms.tech
- · Replies 6 ·
Solve Quadratic Equation for x1^2 + x2^2
- blunted
- · Replies 4 ·
How to solve equations with mod?
- Goldenwind
- · Replies 4 ·
Solving a Matrix with variables
- brownman
- · Replies 4 ·
How Do Volume and Surface Area Scale in Flying Objects?
- KEØM
- · Replies 2 ·
Inequalities with two different fractions which include x in the denominator.
- TheAbsoluTurk
- · Replies 19 ·
Basic algebra: find break-even point
- 939
- · Replies 4 ·
Cartesian equation of the plane
- yy205001
- · Replies 4 ·
Solve Exponential Equation: 5^(sqrt(x)) + (1/5)^(sqrt(x)) = 25
- scientifico
- · Replies 1 ·
How Do You Solve the Inequality 4x^4 + (√2y)^4 ≤ 64 with Respect to x?
- christian0710
- · Replies 9 ·
Convert algorithm to a formula
- mryoussef2012
- · Replies 2 ·
Solve for x logarithm question
- Ascleipus
- · Replies 7 ·
It doesn't make sense to get negative
- davedave
- · Replies 4 ·
Mother's age is twice the sum of her sons' ages
- blunted
- · Replies 11 ·
Finding Min Value: 2x^2-36x+175
- Taylor_1989
- · Replies 3 ·
Tricky maths question. Find base of equation given solutions.
- tigertan
- · Replies 10 ·
Finding Slope of a Tangent Line to a Parabola
- Cascadian
- · Replies 3 ·
Ferris Wheel Problem: Find r, ω, Times for 80ft Height
- Cascadian
- · Replies 5 ·
Solving a Quadratic Equation without the Standard Formula
- supernova1203
- · Replies 2 ·
Proving Equality of Cubed Complex Numbers with Graphical Representation
- redount2k9
- · Replies 29 ·
Vector Subtraction: Is it Commutative?
- odolwa99
- · Replies 3 ·
Finding the limit without L'Hôpital's rule
- Unredeemed
- · Replies 2 ·
Inverse trigonometry prove this
- utkarshakash
- · Replies 3 ·
Can Functions f and g Exist Such That f(x)g(y) = x + y for All Real x, y?
- thchian
- · Replies 6 ·
How Many Quadratic Equations Can Be Formed With Real Roots?
- e.pramudita
- · Replies 11 ·
Off by one in rationalizing a square root problem
- rajatgl16
- · Replies 8 ·
Finding intersection points of 3cos(6x) and 3sin(12x)
- bonfire09
- · Replies 2 ·
Harbour Tides: Calculating Safe Docking Time for Cruise Ships
- davedave
- · Replies 6 ·
How do I calculate DC motor speed for a given load?
- dzlan
- · Replies 1 ·
Find the sum to infinite series
- utkarshakash
- · Replies 3 ·
Inverse trigonometric equation
- utkarshakash
- · Replies 21 ·
Prove that the equation is an identity. State any restrictions.
- goracheski
- · Replies 2 ·
Prove: x\sqrt{1-x^2}+y\sqrt{1-y^2}+z\sqrt{1-z^2}=2xyz
- utkarshakash
- · Replies 4 ·
Solution set for [sin⁻¹ x] > [cos⁻¹ x] with greatest integer function
- utkarshakash
- · Replies 3 ·
Solving Complementary Sets: n(A U B)
- blunted
- · Replies 2 ·
Probabilities of archers A and B hitting the bull's eye
- jinhuit95
- · Replies 19 ·
Locus of midpoints of chords through (5, 0) on circle x² + y² = 25
- kurketom
- · Replies 3 ·
Calculating Passengers without Caps or Eye Glasses: 36 Bus Riders
- blunted
- · Replies 5 ·
To prove that vectors (a + b)(a - b) = a^2 + b^2 iff
- nishantve1
- · Replies 7 ·
First Chapter of Text: distance formula with unknowns (13x,-23x) (6x,x) x>0
- dubious9
- · Replies 8 ·
When is tan^{-1}|tan x| = |x| correct?
- utkarshakash
- · Replies 5 ·
Find the locus of center of circle
- utkarshakash
- · Replies 17 ·
What is the intersection of A and the union of B and C?
- blunted
- · Replies 3 ·
Is There a Software That Converts Drawings into Mathematical Functions?
- zaddyzad
- · Replies 4 ·
Summation question within complex numbers
- jj364
- · Replies 11 ·
Solving for Largest X in Three Vectors with Magnitude Resulting in 17
- MMCS
- · Replies 8 ·
Finding x component of three forces along given vectors
- MMCS
- · Replies 9 ·
Find the equation of hyperbola
- utkarshakash
- · Replies 3 ·
Find (3a + 3b)/(a - b) when a/b = 2/5
- blunted
- · Replies 4 ·
Finding length of 3 sides of a triangle
- mimi.janson
- · Replies 14 ·
Finding polygon diagonals given 70 interior intersection points
- sankalpmittal
- · Replies 7 ·
Finding the number of solutions to sin(x) = |x|/10
- utkarshakash
- · Replies 4 ·