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

What is the minimum value of 'b' in the given equations?

  • utkarshakash
  • · Replies 9 ·
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9

Straight lines passing through fixed point

  • utkarshakash
  • · Replies 6 ·
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6

Applied Stochastic Processess?

  • ra_forever8
  • · Replies 1 ·
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1

Proving |x + y| ≥ |x| - |y| using Theorem 3 and the fact that |-y| = |y|

  • jimmyly
  • · Replies 21 ·
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21

Checking solutions - textbook wrong about roots?

  • BMW
  • · Replies 1 ·
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1

How to deal with INVERSE TANGENT?

  • bmed90
  • · Replies 3 ·
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3

Do Two Random Subsets of X Have the Same Number of Elements?

  • utkarshakash
  • · Replies 7 ·
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7

Probability question related to dice

  • utkarshakash
  • · Replies 13 ·
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13

Finding the Length of a Chord on a Circle

  • Dumbledore211
  • · Replies 9 ·
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9

What are the possible values of a for the least possible length of latus rectum?

  • utkarshakash
  • · Replies 4 ·
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4

Completing the Square Homework Statement

  • denjay
  • · Replies 2 ·
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2

How is the area under the arch of y=sinx related to the unit circle?

  • Trav44
  • · Replies 3 ·
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3

Solve 2^3x=7^(x+1): Logarithms Solution

  • AbsoluteZer0
  • · Replies 3 ·
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3

Understanding Units and Dimensions: Solving Confusion in Basic Math Homework

  • SherlockOhms
  • · Replies 13 ·
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13

Triangle problem - Evaluating the given expression

  • Saitama
  • · Replies 11 ·
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11

Selecting squares from chessboard

  • utkarshakash
  • · Replies 1 ·
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1

Trigonometry - Cosec summation

  • Saitama
  • · Replies 6 ·
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6

Determining dimensions of a rectangle

  • neuro.akn
  • · Replies 22 ·
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22

Prove cl(int(cl(int(A))))=cl(int(A))

  • ArcanaNoir
  • · Replies 4 ·
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4

Find Centroid of Region: No Integration Needed

  • Jbreezy
  • · Replies 7 ·
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7

Solving Trig Problems: Evaluate cos 300° and sin(-120°)

  • TheKracken
  • · Replies 3 ·
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3

Distance between two lines in R^3

  • SteveDC
  • · Replies 7 ·
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7

How to Find the Equation of a Circle with Given Points and Radius?

  • Dumbledore211
  • · Replies 3 ·
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3

How do these equations cancel?

  • noahsdev
  • · Replies 3 ·
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3

Trig Problem: Simplifying cot(θ)sin(-θ) - Homework Help

  • TheKracken
  • · Replies 9 ·
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9

Discriminant of cubic equation in terms of coefficients

  • Dowland
  • · Replies 35 ·
2
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35

How to calculate magnitude of this function ?

  • lazyaditya
  • · Replies 2 ·
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2

Minimum and maximum values of the objective quantity?

  • musicgold
  • · Replies 4 ·
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4

Period of sin(e*x) + sin(pi*x)

  • besulzbach
  • · Replies 20 ·
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20

Evaluating an Inverse Trigonometric Function

  • thatguythere
  • · Replies 14 ·
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14

Solve Log Law Problems Homework Statement

  • AbsoluteZer0
  • · Replies 8 ·
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8

Ratios for 10% Solution: How to Calculate for 4oz/1gal Ratio

  • YoderIII
  • · Replies 2 ·
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2

Determining the period of a trigonometric function

  • ainster31
  • · Replies 5 ·
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5

Questions about Linear Combinations of Random Variables

  • ken15ken15
  • · Replies 4 ·
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4
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8

Linear Algebra solution to a system of equations

  • csgirl504
  • · Replies 2 ·
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2

Logarithmic Derivative of 2^log2(x^2+1) with Base 2

  • huzzi.123
  • · Replies 7 ·
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7

Finding a Coefficient in an Expansion (n-j is negative?)

  • rakeru
  • · Replies 6 ·
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6

Understanding Factoring a Quadratic Equation: Common Mistakes and Solutions

  • ainster31
  • · Replies 15 ·
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15

If p is prime, then its square root is irrational

  • kaos
  • · Replies 7 ·
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7

Solving logarithmic and exponential equations

  • Mootjeuh
  • · Replies 8 ·
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8

Terminal Velocity of Ice Pellet: Homework Solutions

  • JJBlaze
  • · Replies 2 ·
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2

How to Find Positive Integer Ordered Pairs for Binomial Coefficient Equation?

  • juantheron
  • · Replies 7 ·
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7

Factorise 12x^2-27x^2: 3(4x^2-9x^2)

  • ryanuser
  • · Replies 11 ·
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11

Interpretation of an impulse graph

  • lovelyrwwr
  • · Replies 4 ·
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4

What Does Change in Gradient Mean for Road Design?

  • tomtomtom1
  • · Replies 2 ·
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2

Without solving the equation, find the value of the roots

  • BOAS
  • · Replies 3 ·
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3

Direct Proof of gcd(a,b) Corollary: ax+by=d

  • Miike012
  • · Replies 1 ·
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1

Completely expand as a sum/difference of logs

  • lolilovepie
  • · Replies 5 ·
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5

Binomial theorem to evaluate limits?

  • applestrudle
  • · Replies 4 ·
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4

F(f(x))= (x^4)-4(x^2)+2, find f(x).

  • GreenTea09
  • · Replies 4 ·
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4

Why Are 0 and 4 Excluded from the Range in This Function?

  • coconut62
  • · Replies 1 ·
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1

Finding inverse functions when there is X^2+x

  • applestrudle
  • · Replies 5 ·
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5

Solving log_a(y)^n Homework Problem

  • Pharrahnox
  • · Replies 7 ·
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7

Limits when there is a sine function?

  • applestrudle
  • · Replies 5 ·
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5

System of Equations: Unique Solution Conditions

  • emilieloops
  • · Replies 3 ·
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3

What is the proof for a^n > n for all natural numbers n and a >= 2?

  • synkk
  • · Replies 3 ·
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3

Determining the least possible degree of a polynomial function

  • fakecop
  • · Replies 16 ·
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16

Simplify Fraction with same term in Num and Dem, but.

  • zKarp
  • · Replies 5 ·
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5

Determine Big O of a function (Discrete math)

  • Miike012
  • · Replies 2 ·
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2

Finding Real Solutions for Trigonometric Equations

  • FaraDazed
  • · Replies 11 ·
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11

Linear algebra question about subspaces

  • csgirl504
  • · Replies 3 ·
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3

Algebraic Solution to a Puzzle

  • fishtail
  • · Replies 7 ·
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7

Vertically Stretched Spring w/ Hanging Mass.

  • rmiller70015
  • · Replies 1 ·
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1

Help Solving for X (Easy I think)

  • Magnawolf
  • · Replies 2 ·
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2

Solve x in Terms of c: 3x+cos 2x = c

  • GreenTea09
  • · Replies 3 ·
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3

No idea - solve log_a(x) defined only for 0<a<1 and a>1

  • Luxm
  • · Replies 4 ·
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4

Let a and b be real numbers with a < b.

  • setsofvectors
  • · Replies 14 ·
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14

How Many Unique 5 White and 5 Black Bead Necklaces Can Be Made?

  • jameshaley
  • · Replies 2 ·
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2

Nonlinear Equation: Solve x,y,z

  • dirk_mec1
  • · Replies 3 ·
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3

Distance from a point to line problem in need of some help

  • Wats
  • · Replies 3 ·
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3

GRE Problem - What am I doing wrong>

  • doubled
  • · Replies 3 ·
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3

Remainder Theorem Thinking Question

  • fakecop
  • · Replies 3 ·
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3
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14

Area of a plane enclosed within a cube

  • ViolentCorpse
  • · Replies 6 ·
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6

Proof: Infinitely Many Rational Square Roots of Natural Numbers

  • kaos
  • · Replies 7 ·
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7

Boolean algebra prrof question

  • hallerman
  • · Replies 2 ·
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2

Efficiently Solving a Cubic Equation Using Synthetic Division

  • FaraDazed
  • · Replies 2 ·
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2

Proving Inequality using Arithmetic and Order Axioms

  • synkk
  • · Replies 4 ·
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4

Show that these numbers are irrational

  • kaos
  • · Replies 11 ·
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11

Prove Rational Numbers Have Midpoint: x,y ∈ Q

  • kaos
  • · Replies 5 ·
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5

Need help with number of equiprobable outcomes

  • controlswhiz
  • · Replies 2 ·
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2

Summation problem (first N positive integers)

  • GeorgeCostanz
  • · Replies 4 ·
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4

What Is the Probability the Letter Came from London If 'ON' Is Visible?

  • utkarshakash
  • · Replies 6 ·
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6

Chance of B and C After Accident: 2/5, 3/5

  • utkarshakash
  • · Replies 1 ·
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1

Showing if f and g are bijective then so is g o f

  • bonfire09
  • · Replies 7 ·
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7

Inequality absolute value help

  • converting1
  • · Replies 5 ·
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5

Can a Natural Number Indivisible by 3 Have a Square Divisible by 3?

  • zoxee
  • · Replies 3 ·
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3
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10

How Many Nickels, Dimes, and Quarters Add Up to $15.85 from 100 Coins?

  • physics=world
  • · Replies 11 ·
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11

Solve log5(x-1) + log5(x-2) - log5(x+6) = 0

  • Acnhduy
  • · Replies 9 ·
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9

Solve log52 (x-3) = x | Tips and Tricks to Graphing Equations

  • Acnhduy
  • · Replies 12 ·
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12

Help concerning a simple operation

  • help please!
  • · Replies 5 ·
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5

Average Speed to and From a Place: Solved Equation

  • Tyrion101
  • · Replies 5 ·
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5

Spherical Coordinate System Interpretation

  • Zatman
  • · Replies 3 ·
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3

Can we calculate probabilities without assuming independence?

  • phospho
  • · Replies 2 ·
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2
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6

Two Solutions for Trig Functions: An Intuitive Way

  • 462chevelle
  • · Replies 9 ·
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9

Solving Exponential Equations with Fractions and Addition

  • OPSEC
  • · Replies 20 ·
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20

How Do You Solve the Equation 4^x + 6(4^-x) = 5?

  • Acnhduy
  • · Replies 4 ·
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4