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

Solving Simultaneous Equations: x^2 + y^2 = 10 and y = 2x - 5

  • Haroldingo
  • · Replies 3 ·
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3

How many pieces of paper will fit under the string?

  • november1992
  • · Replies 8 ·
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8

Expanding x^n-a^n without Binomial Theroem ?

  • gaganspidey
  • · Replies 7 ·
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7

How to Solve x3+3x/3x2+1 using Componendo and Dividendo?

  • physics kiddy
  • · Replies 10 ·
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10
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2

A problem on algebric expansion and indices.

  • sankalpmittal
  • · Replies 23 ·
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23

How Do You Solve for 'a' in the Equation s = v0t + .5at^2?

  • BuhRock
  • · Replies 2 ·
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2

Find the at which value does the 1/(1-6sinx) is discontinous

  • kougou
  • · Replies 3 ·
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3

Express cos^6(x) without Powers of Trig Functions

  • patton_223
  • · Replies 1 ·
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1

Null-space proof for square matrix

  • VitaminC
  • · Replies 1 ·
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1

Finding a scalar such that vectors p and q are parallel

  • aero_zeppelin
  • · Replies 8 ·
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8

Finding all zeros of a Polynomial

  • ninjamonke
  • · Replies 11 ·
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11

Variance and Expected Value Problem

  • dspampi
  • · Replies 1 ·
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1

Use that relationship to answer the question.

  • stonecoldgen
  • · Replies 1 ·
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1

Roots of a Cubic Function: Solving for x

  • trivk96
  • · Replies 12 ·
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12

Geometric Distribution Coin Flip

  • dspampi
  • · Replies 1 ·
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1
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3

Solve Determinate Question Homework: 2x2 Matrix

  • ElliottG
  • · Replies 12 ·
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12

Prove the diagonals of a kite are perpendicular.

  • MklStar
  • · Replies 5 ·
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5

Separating real and complex parts of a number

  • KarolisK
  • · Replies 6 ·
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6

Probability Problem: Find Probability of 2nd White Ball

  • crina26
  • · Replies 19 ·
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19

Find the height of any triangle?

  • moonman239
  • · Replies 6 ·
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6

Vertical distance between two parabola

  • icosane
  • · Replies 4 ·
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4

Exam : find the minimum value of this function and constrant

  • ~Scott~
  • · Replies 6 ·
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6

Gaussian Elimination, is this method OK?

  • NewtonianAlch
  • · Replies 2 ·
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2

(Trig) Rewriting using power-reducing formula?

  • yue_
  • · Replies 1 ·
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1

Help with two logarithms question

  • NightFire
  • · Replies 2 ·
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2

Circles in an equilateral triangle.

  • Synxervious
  • · Replies 2 ·
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2

Help with coordinate transformations

  • frogster
  • · Replies 3 ·
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3

Calculating Missing Angles and Sides in Right Triangle Using Trigonometry

  • Haroldingo
  • · Replies 7 ·
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7

Solving trigonometric equations

  • davidp92
  • · Replies 3 ·
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3

Solving Probability w/in 1 STD: Stats Problem Homework

  • rbailey5
  • · Replies 1 ·
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1

Do intersecting circles always have equal angles at the circumference?

  • mattg443
  • · Replies 4 ·
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4

I have a test and need some desperate help on functions

  • nando94
  • · Replies 3 ·
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3

Limit of sin2x/sin3x | Find the Solution

  • Nano-Passion
  • · Replies 10 ·
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10
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10

Vector Subspaces: Understanding Closure Properties

  • nayfie
  • · Replies 2 ·
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2

Is There a Trick to Rewrite This Equation in Terms of t?

  • SUDOnym
  • · Replies 7 ·
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7
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7

Area between Triangle and Rectangle

  • orchidthief
  • · Replies 6 ·
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6

What represents the vector: 2a-5b

  • imy786
  • · Replies 7 ·
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7

Solving Rational Inequalities: How to Find the Solution Set?

  • Nelo
  • · Replies 7 ·
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7

Problems on Integers: Q1-Q3 - Solutions Needed

  • steve357
  • · Replies 8 ·
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8

Evaluate Limx->1? I cant figure this out

  • Stevo11
  • · Replies 11 ·
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11

Calculate the Angle (a + b) Makes with the x-axis for Vector (a + b)

  • imy786
  • · Replies 8 ·
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8

What is the Limit of a Rational Function at a Removable Singularity?

  • davie08
  • · Replies 4 ·
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4

Find Unit Vector for 3-D Orthogonal RH System

  • ibysaiyan
  • · Replies 1 ·
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1

Negating a Statement in Mathematics

  • jumbogala
  • · Replies 8 ·
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8

Calculating Ant Population Growth Over 10 Days

  • BobJones
  • · Replies 4 ·
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4
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14

Math test question I just did.

  • davie08
  • · Replies 4 ·
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4

Proof by Induction - Inequalities

  • odolwa99
  • · Replies 4 ·
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4

How High Is the Top Sphere When Four Spheres Form a Square Base?

  • LovePhys
  • · Replies 5 ·
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5

Optimization (I believe it's called) word problems

  • UltimateSomni
  • · Replies 10 ·
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10

How do I expand this probability union thing

  • zeion
  • · Replies 21 ·
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21

Calculating the final speed using Force/Time Graph

  • Nizzeh
  • · Replies 12 ·
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12

Calulate chance to get x heads in y flips

  • zeion
  • · Replies 4 ·
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4

Finding the maximum or minimum value of a funtion to the nth degree?

  • Painguy
  • · Replies 4 ·
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4
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3
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17

Solve Circle Puzzle: 18 Math, 19 History, 16 Art

  • Jadaav
  • · Replies 10 ·
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10

4x^2 = 7y How do they get the following for the focus and directix?

  • Jurrasic
  • · Replies 2 ·
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2

Linear algebra matrices multiplication (transpose)

  • dmoney123
  • · Replies 2 ·
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2
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9

What does it mean first 2 flips are heads

  • zeion
  • · Replies 12 ·
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12

Complicated probability question with urns and balls

  • zeion
  • · Replies 4 ·
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4

Find exact value of composite trig function.

  • veganazi
  • · Replies 2 ·
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2

Bayes Probability HIV Word Problem

  • dspampi
  • · Replies 1 ·
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1

Exponential function and Geometric progression

  • schan11
  • · Replies 1 ·
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1

Prove continuity by first principle

  • chocolatefrog
  • · Replies 3 ·
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3

Show that T preserves scalar multiplication - Linear Transformations

  • NewtonianAlch
  • · Replies 1 ·
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1

Lottery Combinations Homework: Solving for Guaranteed Matches

  • jumbogala
  • · Replies 1 ·
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1

Mensuration Q: Right Triangle, xy=a^2?

  • Cromptu
  • · Replies 1 ·
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1

Matrix Algebra; Linear Dependece; 3 Vectors; In R^4

  • bmed90
  • · Replies 4 ·
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4

Can You Prove This Trigonometry Equation?

  • Mr.Krypton
  • · Replies 9 ·
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9

Are There Really 256 Ways to Order a Hamburger at Wendy's?

  • Zee88
  • · Replies 12 ·
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12

Finding the Equation for a Line: y=mx+b

  • BeachofBrasil
  • · Replies 3 ·
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3
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5

How to Find C Coordinates if OA + BA + CA is Perpendicular to OB

  • Michael_Light
  • · Replies 5 ·
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5

Why are my answers for Linear Algebra homework incorrect?

  • ElliottG
  • · Replies 3 ·
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3

How do I determine whether a set of polynomials form a basis?

  • NewtonianAlch
  • · Replies 6 ·
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6

Short easy question, what does this sort of plus minus symbol mean?

  • aschulz90
  • · Replies 6 ·
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6

Modeling a power as sum of combination

  • johnhaddad
  • · Replies 1 ·
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1

Distance & Bearing Calculations for Towns A, B, C & D | Easy Guide"

  • lionely
  • · Replies 9 ·
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9

How Can We Minimize Prediction Errors in Binary Variable Analysis?

  • Luksdoc
  • · Replies 2 ·
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2

How Do You Solve Complex Ratio Problems in Chemistry?

  • roger12
  • · Replies 4 ·
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4

Completing the Square: Why and When?

  • Painguy
  • · Replies 5 ·
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5

Find exact value of cosecant function

  • veganazi
  • · Replies 2 ·
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2

Show that this inequality is true for all x, y ε R

  • tomcruisex
  • · Replies 8 ·
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8

System of Linear Equations - Proving

  • lkh1986
  • · Replies 2 ·
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2

Negative Binomial random variable

  • sam_0017
  • · Replies 1 ·
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1

Why Is This Trig Equation So Challenging to Solve?

  • BluePhone
  • · Replies 2 ·
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2

R^2 = 8/(2-sin^2 θ) Convert to rectangular form?

  • Jurrasic
  • · Replies 2 ·
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2

Ans: Understanding Direction of a Parametric Equation

  • Jurrasic
  • · Replies 1 ·
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1

Proving i=sqr(-1): Homework Equations & Solution

  • Tusike
  • · Replies 6 ·
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6

Proving if a subset is a subspace

  • nayfie
  • · Replies 4 ·
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4
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1

R=2cosθ Convert to rectangular form?

  • Jurrasic
  • · Replies 1 ·
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1

It says convert (-1, pi/8 ) from polar to rectangular coordinate?

  • Jurrasic
  • · Replies 6 ·
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6

Solving for Theta: Homework Help

  • slapshot151
  • · Replies 12 ·
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12