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

Ways to put letters in postboxes

  • fireflies
  • · Replies 28 ·
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28

{Combinatorics} Coins distributed among people.

  • youngstudent16
  • · Replies 3 ·
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3

Solving Polynomials: Factoring

  • Mary1910
  • · Replies 12 ·
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12

How Can I Solve tan(a)=-1 for Multiple Solutions?

  • Rectifier
  • · Replies 20 ·
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20

Proof of the logarithm product rule

  • josephgerth
  • · Replies 14 ·
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14

Understanding the Distributive Property: (n+1)^n(n+1)+1=n(n+1)^n+(n+1)^n+1

  • Fabrizio
  • · Replies 2 ·
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2

Geometry Problem - Sum of distances

  • franceboy
  • · Replies 1 ·
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1

{Geometry} Find length of the equilateral triangle

  • youngstudent16
  • · Replies 7 ·
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7

{Geometry} Find the Area of the quadrilateral

  • youngstudent16
  • · Replies 6 ·
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6

Tan() -- calculate the exact value w/o a calculator

  • Rectifier
  • · Replies 6 ·
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6

Calculate the Unknown Angle of a Right Triangle

  • Rectifier
  • · Replies 2 ·
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2

The problemFind side length using trig

  • caters
  • · Replies 6 ·
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6

Probability density function of uniform distribution

  • diracdelta
  • · Replies 5 ·
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5

Is ± Present When Taking 4th Root?

  • Destroxia
  • · Replies 5 ·
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5

How Do Three Tangents Form an Equilateral Triangle Around a Circle?

  • Saracen Rue
  • · Replies 7 ·
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7

Survey Results: 100 Respondents, 5 Colors - Mean, Median & Mode?

  • dimasalang
  • · Replies 5 ·
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5

Calculate Binomial Coefficient: {-3 \choose 0}, {-3 \choose 1}, {-3 \choose 2}

  • LagrangeEuler
  • · Replies 6 ·
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6

Show smaller circle lie inside bigger circle

  • goldfish9776
  • · Replies 5 ·
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5

How Do You Transform Trigonometric Expressions and Find Their Extremes?

  • Theodore Hodson
  • · Replies 4 ·
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4

Conditional Probability Problem

  • BigFlorida
  • · Replies 12 ·
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12

Combination or probability question

  • rajeshmarndi
  • · Replies 9 ·
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9

Solving using permutation and combination

  • rajeshmarndi
  • · Replies 5 ·
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5

Prove by method of contradiction

  • agent1594
  • · Replies 4 ·
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4

4 balls and 4 cells probabillity

  • diracdelta
  • · Replies 14 ·
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14

Choose President & 2-Person Committee from 8 People - 168 Ways

  • caters
  • · Replies 2 ·
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2

Finding the equation of a parabola with 1 point

  • Jaco Viljoen
  • · Replies 26 ·
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26

Arrangement of letters in a word

  • rajeshmarndi
  • · Replies 11 ·
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11

Different types of exponential growth equations?

  • NanaToru
  • · Replies 5 ·
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5

Quick Limit Question (Pictures Included)

  • Yawzheek
  • · Replies 4 ·
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4

Factoring a quadratic: strange issues

  • ducmod
  • · Replies 6 ·
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6

Logarithm problem that I'm stuck on

  • Rectifier
  • · Replies 4 ·
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4

What is the Complex Tangent Formula Proof for Homework?

  • allamid06
  • · Replies 3 ·
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3

What is the name of this function?

  • Rectifier
  • · Replies 3 ·
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3

Limit does not exist but function exist

  • funlord
  • · Replies 6 ·
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6

Prove of number of subsets of a set

  • rajeshmarndi
  • · Replies 3 ·
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3

Check my work on these proofs? (basic set theory)

  • Ryanodie
  • · Replies 10 ·
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10

Can Consecutive Powers Be Expressed as Polynomial Formulas?

  • Keen94
  • · Replies 23 ·
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23

Solving a Trigonometry Problem with a Missing 90-Degree Angle

  • Keith
  • · Replies 4 ·
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4

Solving an Equation with g(x) and h(x)

  • Jaco Viljoen
  • · Replies 25 ·
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25

What is the Domain of l/g Without first calculating (l/g)(x)

  • Jaco Viljoen
  • · Replies 9 ·
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9

Rational and irrational numbers

  • Curieuse
  • · Replies 29 ·
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29

Conditional probability problem - good solution?

  • diracdelta
  • · Replies 5 ·
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5

Geometric sum - Alfred & interest-rate

  • Rectifier
  • · Replies 8 ·
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8

Suppose the function f is defined as follows: f(x)=4x^2-5x+1

  • Jaco Viljoen
  • · Replies 10 ·
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10

Suppose function g is defined as follows: g(x)=-(1/2)x-3

  • Jaco Viljoen
  • · Replies 9 ·
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9

What is the magnitude of the aftershock

  • gatita0225
  • · Replies 1 ·
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1

Cos(A-B) vs sin(A+B) [acos(x) + bsin(x) question]

  • lionely
  • · Replies 6 ·
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6

A difficult problem on functions

  • spaghetti3451
  • · Replies 11 ·
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11

Rotation of Vectors: Comparing Matrices

  • ahmed markhoos
  • · Replies 4 ·
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4

Use proof by induction to show that 2^n > n^3 for n>9

  • PcumP_Ravenclaw
  • · Replies 8 ·
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8
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7

Solutions to Cos 2x Homework: 32 Answers

  • takando12
  • · Replies 10 ·
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10

The Probability Density of X^2?

  • Kior
  • · Replies 5 ·
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5

How Do You Solve These Delegation Selection Problems in Combinatorics?

  • diracdelta
  • · Replies 9 ·
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9

True/False : Stationary process In stochastic process

  • hojoon yang
  • · Replies 1 ·
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1

Transforming Functions: Solving g(x) = 2f(-x+(3/2))

  • AAAA
  • · Replies 4 ·
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4

Matrix Equation: Finding Non-Zero Solution for AX + XA = 0

  • Appleton
  • · Replies 9 ·
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9

Statistics problem using cumulative from mean

  • MarcL
  • · Replies 5 ·
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5

Prove that the rationals are dense

  • PcumP_Ravenclaw
  • · Replies 10 ·
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10

(euclidean geometry) Euclid's elements proposition 13 book

  • astrololo
  • · Replies 1 ·
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1
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1

Solving Homework Problem #16ii: Log([x+y]/sqrt5)

  • lionely
  • · Replies 14 ·
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14

Logarithim Problem I been stuck on for a day

  • lionely
  • · Replies 16 ·
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16

About stochastic process....Help please

  • hojoon yang
  • · Replies 2 ·
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2

Find linear equation based on given costs

  • ducmod
  • · Replies 8 ·
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8

Solving trigonometric equations using compound angle formula

  • Tangeton
  • · Replies 7 ·
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7

Would anyone explain the solution a little bit to me?

  • Kior
  • · Replies 2 ·
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2

Is the argument sound? Yes, the argument is sound.

  • Keen94
  • · Replies 4 ·
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4

Trigonometric Equation solving

  • bnosam
  • · Replies 36 ·
2
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36

Point of Intersection involving logarithms

  • Potatochip911
  • · Replies 4 ·
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4

Probably a geometric series question

  • mpx86
  • · Replies 1 ·
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1

Proofs using the binomial theorem

  • Keen94
  • · Replies 1 ·
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1

Induction Proofs Homework: Prove ∑nj=0 n C r = 2n

  • Keen94
  • · Replies 3 ·
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3
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2

Mathematical Modelling, Vectors and Parametric Equations

  • Nile Anderson
  • · Replies 8 ·
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8

Is x=0 a solution to the inequality above?

  • Rectifier
  • · Replies 21 ·
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21

Square root of complex number on a calculator

  • Gremlin
  • · Replies 28 ·
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28

Trying to Find Coords of a Local Maximum and Minimum

  • cmkluza
  • · Replies 7 ·
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7

What Values of \( p \) Ensure \( p(x^2+2) < 2x^2+6x+1 \) for All \( x \)?

  • Theodore Hodson
  • · Replies 16 ·
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16

Find λ for Non-Uniform Scale & Shear Transformation

  • Appleton
  • · Replies 7 ·
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7

Let f, g and h be functions defined below:

  • Jaco Viljoen
  • · Replies 14 ·
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14

Which of the following is/are true?

  • Jaco Viljoen
  • · Replies 3 ·
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3

Which of the following is/are true?

  • Jaco Viljoen
  • · Replies 6 ·
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6

Which of the following represent a function

  • Jaco Viljoen
  • · Replies 25 ·
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25

Prove that 33 divides 2^55 + 1

  • jack476
  • · Replies 3 ·
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3

Let f, g and h be functions defined as follows:

  • Jaco Viljoen
  • · Replies 2 ·
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2

The circle with the equation x^2+y^2-2x+4y=0

  • Jaco Viljoen
  • · Replies 14 ·
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14

Diameter of a circle endpoints P(0,0) Q(8,-4) what equation:

  • Jaco Viljoen
  • · Replies 3 ·
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3

Combination with repeatation formula

  • rajeshmarndi
  • · Replies 1 ·
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1

How to find the argument of a function?

  • znaya
  • · Replies 5 ·
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5

What Are the Effects of Different Transformations on the Function y=e^x?

  • Samurai44
  • · Replies 10 ·
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10

Proving the Axiom of Quantifiers: A Simple Algebraic Approach

  • amilapsn
  • · Replies 7 ·
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7

Calculate Volume of a Cone: Formulas & Steps

  • Ruturaj Vaidya
  • · Replies 8 ·
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8

The discriminant of a quadratic and real solutions

  • Keen94
  • · Replies 2 ·
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2

Basic Proof Writing Help continued.

  • Keen94
  • · Replies 7 ·
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7

Distribution function primitive

  • cham
  • · Replies 2 ·
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2

Basic Proof Writing: Prove Sum of 3 Odd Ints is Odd

  • Keen94
  • · Replies 6 ·
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6

Truth Set for the given Equivalence

  • Keen94
  • · Replies 10 ·
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10

Probability question -- A test to see if a coin is fair....

  • Mr Davis 97
  • · Replies 2 ·
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2
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3