Precalculus Mathematics Homework Help Forum

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

Replies
1

Solve Problem with Proof by Induction

  • smh745
  • · Replies 5 ·
Replies
5
Replies
1

Multiplying/Dividing Rational Expressions(Playing with AlgebraII Fractions)

  • SETHOSCOTT
  • · Replies 7 ·
Replies
7

How many ways can 7 distinct flags be arranged with 2 separated?

  • chrisyuen
  • · Replies 12 ·
Replies
12

Binomial Expansion long division

  • chrisyuen
  • · Replies 2 ·
Replies
2

Solving an inverse trig equation

  • Kaylee!
  • · Replies 1 ·
Replies
1

Solving Equations by Factoring - Find the length of the hypotenuse

  • Raizy
  • · Replies 4 ·
Replies
4

System of Equations with Unknown Variables

  • Je m'appelle
  • · Replies 2 ·
Replies
2

Understanding and Solving Functions to Solving Complex Equations

  • melvinator
  • · Replies 5 ·
Replies
5

Solving 4^x + 4^-x = 8 - 2x - x^2

  • kurvmax
  • · Replies 7 ·
Replies
7

The curious case of 50x^2 - 72

  • Bavariadude
  • · Replies 3 ·
Replies
3

Finding Coordinates on a Circle: Solving for Points After Rotation

  • macarino
  • · Replies 3 ·
Replies
3

Expectation of 2 random variable, E(|X-Y|^a)

  • Micle
  • · Replies 4 ·
Replies
4

Finding the nth Term of an Arithmetic Sequence

  • demonelite123
  • · Replies 6 ·
Replies
6

How Many Empty Seats Maximize Profit on a Ski Trip Minibus?

  • hallowon
  • · Replies 1 ·
Replies
1
Replies
1

Quadratic Function Word Problem

  • TrueStar
  • · Replies 3 ·
Replies
3

Four Fours Challenge: Get 44 with ONLY 4s!

  • UNknown 2010
  • · Replies 3 ·
Replies
3

Finding a and b for y = ax^2 + bx Passing Through (2,4) with Gradient 8

  • tweety1234
  • · Replies 10 ·
Replies
10

How Can I Solve a Determinant Problem Using Induction?

  • kidsmoker
  • · Replies 1 ·
Replies
1

Probability problem, central limit theorm/binomial

  • subopolois
  • · Replies 1 ·
Replies
1

How Do You Prove (ab)^-1 Equals a^-1b^-1?

  • jgens
  • · Replies 1 ·
Replies
1

What Is the Probability of Having Enough Seats on an Overbooked Flight?

  • subopolois
  • · Replies 3 ·
Replies
3

Solve "cos(15)+sin(15)" Without Calculator

  • RoryP
  • · Replies 1 ·
Replies
1

Trigonometry, find solutions between [0/2pi]

  • synergix
  • · Replies 3 ·
Replies
3

Solving x^2-6 = sqrt(x+6)Is there an easier way to solve this question?

  • rafehi
  • · Replies 5 ·
Replies
5

Help with arithmetic sequence problem

  • demonelite123
  • · Replies 2 ·
Replies
2

Normally distributed probability problem

  • subopolois
  • · Replies 5 ·
Replies
5

Finding the nth Exponent: Solving for n in 2^2^n = 36 trillion

  • MrAnderson
  • · Replies 4 ·
Replies
4

Word problems : quadratic functions

  • someguy37
  • · Replies 11 ·
Replies
11

Calculating Sin of Angle Between Two Vectors in 3D Space

  • touqra
  • · Replies 1 ·
Replies
1

Directed Line Segment Joining (1,1,1) to (1,3,1)

  • cse63146
  • · Replies 6 ·
Replies
6

Trig Identities for Refraction

  • GrahamCU
  • · Replies 6 ·
Replies
6

Finding the Degree of of triangle.

  • anto3232
  • · Replies 4 ·
Replies
4

Solving Probability Question: R1, R2, B2 & G3

  • crays
  • · Replies 3 ·
Replies
3

Coordinate geometry of the circle question

  • Ed Aboud
  • · Replies 5 ·
Replies
5

Find Equation for a Cubic Function with Zeros -2 and 3 and Y-Intercept 9

  • jessica.so
  • · Replies 1 ·
Replies
1

How to simplify sqrt(2)/(sqrt(2) - 1) to 2 + sqrt(2)

  • negatifzeo
  • · Replies 1 ·
Replies
1

How do I solve for the solutions of sin 2θ = sin θ in degrees?

  • patriots1049
  • · Replies 2 ·
Replies
2

How Do You Isolate sin a in a Quadratic Trigonometric Equation?

  • ditto_299
  • · Replies 1 ·
Replies
1

For All Positive Numbers: Is y the Solution?

  • soopo
  • · Replies 2 ·
Replies
2

Settlement of Multiple Obligations with Varying Interest Rates

  • banana_banana
  • · Replies 10 ·
Replies
10

Problem involving mortgage and rate

  • teamrocket
  • · Replies 1 ·
Replies
1

Solve Algebra: (0.97)(1+ Beta gas (-Ti)) = (1 + Beta steel (-Ti))

  • chantalprince
  • · Replies 2 ·
Replies
2

Simplifying fractions with roots

  • username12345
  • · Replies 5 ·
Replies
5

Is there a network with 50 arcs annnd one vertex?

  • soopo
  • · Replies 2 ·
Replies
2

Simplifying a Sigma Sequence Problem

  • UNknown 2010
  • · Replies 5 ·
Replies
5

Finding the equation of a graph with asymptotes (help please)

  • jenni2010
  • · Replies 4 ·
Replies
4

Success Rate of an Event with 20% Chance & 5 Tries

  • Zinic
  • · Replies 9 ·
Replies
9

Proving y' = 2ax + b is a Bijection

  • soopo
  • · Replies 3 ·
Replies
3

Permutations & Pascal's Triangle

  • Sweeneykill
  • · Replies 4 ·
Replies
4

Fractions in Einstein Relativity Theory

  • Norway
  • · Replies 3 ·
Replies
3

Triangle Circumscribed by a Circle (Geometry Problem)

  • Saladsamurai
  • · Replies 5 ·
Replies
5

Solve Logarithmic Problem: Evaluate & Simplify

  • lucky_star
  • · Replies 5 ·
Replies
5

Solving Trigonometric Identities: Tips and Examples

  • enibaraliu
  • · Replies 5 ·
Replies
5

Is x^fraction one-to-one or not

  • intenzxboi
  • · Replies 3 ·
Replies
3

Interesting word problem posed

  • twinhairdryer
  • · Replies 3 ·
Replies
3

What this mathematical symbol means?

  • R A V E N
  • · Replies 7 ·
Replies
7

Data Generation with Requirement

  • awaludin
  • · Replies 2 ·
Replies
2

Did I Simplify This Trigonometric Expression Correctly?

  • jimbo71
  • · Replies 3 ·
Replies
3

Population Modelling Homework: Immigration, Growth & Recovery

  • missbooty87
  • · Replies 2 ·
Replies
2

Linear Algebra: Vector Subspaces

  • war485
  • · Replies 3 ·
Replies
3

Completing the Square/Finding Center & Radius of Circle

  • TrueStar
  • · Replies 7 ·
Replies
7

Solving a TI-83/84 Calculator Exam Question: 771 vs. 1,059

  • jfhorns7853
  • · Replies 3 ·
Replies
3

Proving Logarithmic Rule: log_a(x^k)=klog_ax

  • Hypochondriac
  • · Replies 3 ·
Replies
3

Domain of g(x): [-1,2) | Calc Homework Question

  • George3
  • · Replies 2 ·
Replies
2

Area of a parallelogram using determinants

  • cse63146
  • · Replies 3 ·
Replies
3

Find Magnitude & Direction of Resultant of Forces - Vector Questions

  • halb
  • · Replies 1 ·
Replies
1

Tricky complex numbers problem

  • andrew.c
  • · Replies 5 ·
Replies
5

Trigonometric functions and the unit circle

  • Niles
  • · Replies 4 ·
Replies
4

Finding the Angle Using Arcsec in Trigonometry

  • Firestrider
  • · Replies 3 ·
Replies
3

Solve for X: ln(x) + ln(x+1) = 1

  • r_swayze
  • · Replies 3 ·
Replies
3

What Are the Solutions to bx^2 + cx + a = 0 for Any Constants a, b, and c?

  • imdapolak
  • · Replies 2 ·
Replies
2

3d vectors. Does a point lie on the line?

  • Anyone
  • · Replies 2 ·
Replies
2

Here's a theorem about the tangent function

  • imdapolak
  • · Replies 2 ·
Replies
2

Coordinate Geometry(Right Triangle)

  • ritwik06
  • · Replies 7 ·
Replies
7

Long Division isn't working for me

  • WadeS
  • · Replies 7 ·
Replies
7

What is the Sum of the First 110 Terms in This Arithmetic Progression?

  • demonelite123
  • · Replies 1 ·
Replies
1

What is the solution to the equation tan²x + cos2x = 1 - cos2xtan²x?

  • synergix
  • · Replies 6 ·
Replies
6

Solving Fractions in Linear Equations: Help Needed!

  • Raizy
  • · Replies 5 ·
Replies
5

Prove Identity: csc2@= 1/(1-(sin@-cos@)^2

  • synergix
  • · Replies 3 ·
Replies
3

Find exact value difference identity

  • synergix
  • · Replies 4 ·
Replies
4

Solve Combination Problem: C(n,3) = C(n,8)

  • DecayProduct
  • · Replies 3 ·
Replies
3

Discover the Inverse Function of f(x)=-2/3(x+5)^2 - 5/3

  • jeahomgrajan
  • · Replies 6 ·
Replies
6

Finding nth term of a sequence (explicit formula)

  • demonelite123
  • · Replies 3 ·
Replies
3

Question about a particular equivalence relation.

  • frankfjf
  • · Replies 12 ·
Replies
12

Functions of Several Variables

  • affirmative
  • · Replies 2 ·
Replies
2

Expert Help for Upcoming Test | Step-by-Step Tutoring & Tips"

  • Eshmael
  • · Replies 5 ·
Replies
5
Replies
4

Plese i in this exam,its a challenge.

  • shishi4
  • · Replies 1 ·
Replies
1

Probability of flipping a biased coin k times

  • mcnkevin
  • · Replies 8 ·
Replies
8

Help with Series: Solving ∞ ∑ (n/2^(n-1)) n=1

  • djuiceholder
  • · Replies 6 ·
Replies
6

Find the max angle for the resultant of two vectors

  • Teddy6299
  • · Replies 4 ·
Replies
4

Solving 3D Equilibrium: Finding FBA & Alpha

  • jimbo71
  • · Replies 3 ·
Replies
3
Replies
6

Algebra 2 Descartes' Rule of Signs

  • Loonygirl
  • · Replies 3 ·
Replies
3

Averaging Errors: Calculating Error for 2 Values

  • tom717
  • · Replies 4 ·
Replies
4

Two trig questions (Triangles and Trapezoid)

  • rought
  • · Replies 10 ·
Replies
10

How can I solve a polynomial with a constant term equal to zero?

  • Niles
  • · Replies 2 ·
Replies
2