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

Truth Table Homework: Equations and Solutions for T and F

  • Suyash Singh
  • · Replies 1 ·
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1

Rounding off to the correct number significant figures

  • Indranil
  • · Replies 3 ·
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3

Complex Analysis prerequisite material review

  • Terrell
  • · Replies 8 ·
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8

Converting a value material parameter

  • fred_91
  • · Replies 1 ·
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1

How can you simplify complex division with imaginary numbers?

  • alijan kk
  • · Replies 3 ·
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3

Equations for Circles and Ellipses: A Helpful Guide

  • Suyash Singh
  • · Replies 4 ·
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4

Sketch the following set of points in the xy plane

  • Rijad Hadzic
  • · Replies 10 ·
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10

How to find sec(theta) when sin(theta) and tan(theta) are given

  • Alice Shield
  • · Replies 3 ·
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3

Determinant Q54: Cofactor Expansion Solution

  • azzarooni88
  • · Replies 5 ·
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5

Statistics question: Adjusting staffing levels to match customer traffic

  • Physics Dad
  • · Replies 5 ·
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5

Two pencils of planes have a common plane

  • beglor
  • · Replies 3 ·
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3

Solving an algebraic identity with ellipses

  • opus
  • · Replies 8 ·
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8

Is the Shaded Region Outside the Circle in the W Plane?

  • trew
  • · Replies 3 ·
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3

Probability of getting a Four-of-a-kind?

  • musicgold
  • · Replies 7 ·
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7

Problem involving complex numbers

  • ubergewehr273
  • · Replies 5 ·
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5

Sum of (n+1) terms in exponential series

  • ssd
  • · Replies 7 ·
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7

Trig Identities -- example problem confusion

  • opus
  • · Replies 10 ·
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10

Population drop word problem -- help with the Algebra please

  • opus
  • · Replies 33 ·
2
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33

Probability of draw with replacement

  • Tajeshwar
  • · Replies 10 ·
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10

Angle between lines, with free variables in equations?

  • Oliviacarone
  • · Replies 6 ·
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6

Solving Simpson's Rule: Finding cos^2(1^2)

  • Jeviah
  • · Replies 2 ·
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2

Modular Equation Solving | x2 + 8x ≡ 0 (mod 56) | Step-by-Step Guide

  • Cheesycheese213
  • · Replies 1 ·
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1

What is the Sum of Angles a and b in This Trigonometry Problem?

  • Helly123
  • · Replies 4 ·
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4

Bayes' Theorem: Probability of 8 Heads in 10 Tosses?

  • Tajeshwar
  • · Replies 4 ·
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4

Intuitive explanation of fractional exponents?

  • musicgold
  • · Replies 8 ·
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8

GRE Question - What's wrong with my reasoning?

  • Tim67
  • · Replies 8 ·
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8

Rotating Vectors: Clockwise and Anti-clockwise

  • lioric
  • · Replies 5 ·
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5

General Mathematics Grade 9 -- Find the length of a diagonal of the cuboid

  • Physiona
  • · Replies 73 ·
3
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73

How Do You Calculate the Probability of Wanting to Watch a Football Game?

  • Tajeshwar
  • · Replies 9 ·
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9

Find the angle between 2 vectors

  • Helly123
  • · Replies 16 ·
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16

Are two coincident lines the same line?

  • tomwilliam2
  • · Replies 4 ·
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4

Elementary probability question: dice roll

  • Mathman2013
  • · Replies 4 ·
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4

Find the smallest value for the polynomial

  • Loststudent22
  • · Replies 4 ·
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4

Significant Figures: Counting on 5.400 and the Role of Zeroes

  • Muhammad Danish
  • · Replies 3 ·
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3

Setting up a matrix from a linear equation

  • Llewelyn
  • · Replies 6 ·
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6

When is a function linear and when is it affine?

  • tomwilliam2
  • · Replies 5 ·
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5

Probabilities and random variables

  • Mohamed BOUCHAKOUR
  • · Replies 5 ·
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5

Solving an oblique triangle. Looking for a correctness check

  • opus
  • · Replies 3 ·
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3

Find the value of the trigonometric sum

  • Amlan mihir
  • · Replies 4 ·
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4

What is the probability? Is it independent?

  • Amlan mihir
  • · Replies 1 ·
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1

What is the necessary and sufficient condition?

  • Helly123
  • · Replies 34 ·
2
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34

Calculating Probabilities of Coin Tosses

  • kent davidge
  • · Replies 16 ·
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16
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3

Vectors: Proving the value of a•(b x c)

  • Sandro Romualdez
  • · Replies 21 ·
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21

Solving Cosine of 330 Degrees: Conjugate Method vs. Alternative Method Explained

  • Hammad Shahid
  • · Replies 7 ·
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7
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12

2arctan(1/2)+arccos(-3/5)=x how to solve?

  • Wi_N
  • · Replies 4 ·
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4

How Do You Form and Expand a Cubic Equation from Given Intersections?

  • Physiona
  • · Replies 30 ·
2
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30

Understanding the ratio formula

  • Vital
  • · Replies 5 ·
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5

What is the algebraic proof for the remainder of 11 when dividing by 12?

  • Physiona
  • · Replies 5 ·
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5
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6

Geometric mean application in finance ratio question

  • Vital
  • · Replies 2 ·
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2

Probability of getting an odd number-conditional probability

  • Fatima Hasan
  • · Replies 6 ·
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6

What Is the Modulus of z When z=(x-iy)/(x+iy)?

  • alijan kk
  • · Replies 4 ·
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4

Shape of y = 3x +2 in r - \theta space

  • Pushoam
  • · Replies 45 ·
2
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45

How many different teams can be formed ...?

  • Fatima Hasan
  • · Replies 7 ·
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7

Basic probability, conditional probability

  • late347
  • · Replies 6 ·
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6

Equation involved complex number

  • alijan kk
  • · Replies 2 ·
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2

From a given basis, express a polynomial

  • Randell Julius
  • · Replies 7 ·
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7

Complex number multiple choice

  • alijan kk
  • · Replies 12 ·
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12

Vector components/coordinates question.

  • Physics345
  • · Replies 12 ·
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12

Sketching resultants using vector addition.

  • Physics345
  • · Replies 2 ·
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2

Finding a Vector in Cartesian form

  • Physics345
  • · Replies 2 ·
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2

Disassembling a product to it's factors

  • Karol
  • · Replies 6 ·
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6

Polar equation to rectangular equation

  • Poetria
  • · Replies 11 ·
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11

Conditions of a quarter-circle running through the origin

  • CSA
  • · Replies 12 ·
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12

Line passing through the origin (polar coordinates)

  • Poetria
  • · Replies 11 ·
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11
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1

Finding the exact value of cos(arcsin())

  • opus
  • · Replies 33 ·
2
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33

Using Power Reducing Formulas to rewrite Trig Expressions

  • opus
  • · Replies 7 ·
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7

Product of Missing Digits in a Number

  • doggydan42
  • · Replies 2 ·
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2

ZPQM is a parallelogram, express Vector OZ in terms of u and v

  • Richie Smash
  • · Replies 6 ·
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6

Circle Geometry with an Intersecting Line

  • Physiona
  • · Replies 14 ·
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14

Prove RS is parallel to KL using vector method

  • Richie Smash
  • · Replies 20 ·
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20

Set Notation Question: Converting to Set Builder Notation | Homework Help

  • Rijad Hadzic
  • · Replies 3 ·
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3

How Do You Solve for t When Point E Lies on Line CD?

  • Kolika28
  • · Replies 10 ·
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10

Mastering Double Angle Identities: Solving -2sin3θ+1=0

  • lioric
  • · Replies 10 ·
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10

Solve the Mystery: Three Non-Negative Integers & Perfect Powers of 2

  • arpitm08
  • · Replies 8 ·
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8

Find the scalar, vector, and parametric equations of a plane

  • Physics345
  • · Replies 10 ·
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10

Man needs to buy cars (combinatorics)

  • kent davidge
  • · Replies 25 ·
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25

Writing parallel vector equation

  • Physics345
  • · Replies 6 ·
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6

Find the limit as h --> 0 for this trigonometery equation

  • Helly123
  • · Replies 40 ·
2
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40

Probability Problem -- pulling colored balls from a box randomly

  • kent davidge
  • · Replies 25 ·
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25

Linear equation, point slope conversion

  • amerikantech
  • · Replies 12 ·
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12

Demonstrating set properties of a map

  • Baris Kalfa
  • · Replies 2 ·
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2

What Is the Limit of t Plus a Complex Fraction as t Approaches Infinity?

  • Aleolomorfo
  • · Replies 10 ·
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10

How many ways can you roll an 18 from 5 dice?

  • srfriggen
  • · Replies 14 ·
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14

Understanding Arccos and Its Undefined Value for π/2

  • opus
  • · Replies 12 ·
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12

Pre-calc related question for the interval of a solution

  • Rijad Hadzic
  • · Replies 11 ·
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11

Derive the equation of a line after x+(1/2)y =0 is mapped by T

  • Richie Smash
  • · Replies 15 ·
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15

Prove that 0.999.... = 1 is a contradiction

  • mustang19
  • · Replies 15 ·
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15

Domain and Range of a Function and Its Inverse- Polynomials

  • opus
  • · Replies 9 ·
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9
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11

Why are there two solutions for e in ln| (y-2)/(y+2) | = 4x + c_2?

  • Rijad Hadzic
  • · Replies 12 ·
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12

Values of sin and cos (rad and deg)

  • knockout_artist
  • · Replies 4 ·
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4

Manipulating an inequality in the bisection method

  • reed2100
  • · Replies 2 ·
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2

Graphing sinusoidal tangent functions

  • opus
  • · Replies 17 ·
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17

Derive an expression for the price of a pen in terms of p

  • Richie Smash
  • · Replies 6 ·
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6

(possible) Alternative solution to a difference equation

  • Nerd-ho
  • · Replies 6 ·
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6

Is there an explicit way to write the solution of nx = e^x?

  • Hiero
  • · Replies 3 ·
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