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

How to factor 6w^2 - 5wt - 4t^2

  • zeion
  • · Replies 3 ·
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3

Solving an equation in 4th degree

  • zorro
  • · Replies 7 ·
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7

What is the polar form of -2^i?

  • KyleS4562
  • · Replies 3 ·
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3

Complex numbers ordering: Is there a consistent order for complex numbers?

  • ashraf.yusoff
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4
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46

(algebra) Proving subspaces- functions

  • natalie:)
  • · Replies 7 ·
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7

Quaternion Rotations: Show R2∘R1 Is a Rotation

  • Lightf
  • · Replies 3 ·
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3

Show that for every quaternion z we have

  • Lightf
  • · Replies 4 ·
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4

Proving Circle-Parabola Intersection: a>b>1 | x2 + y2 = 1, y = ax2 - b

  • zorro
  • · Replies 1 ·
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1

Cos x vs Cos-1: What's the Difference?

  • Acuben
  • · Replies 2 ·
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2

Triangle inscribed within a circle

  • BrownianMan
  • · Replies 4 ·
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4

Cross product ,why doesnt this work

  • madah12
  • · Replies 8 ·
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8

Perpendicular bisector question and general checking

  • greener1993
  • · Replies 3 ·
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3

Solving Algebraic Relations of Reciprocal Lattice Vectors

  • dingo_d
  • · Replies 5 ·
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5

Evaluating ln(x + sqrt[1+x2]) - sin(x) at x=.001

  • psyklon
  • · Replies 1 ·
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1

Stats: Multiplication Rule & Counting Rule Confusion

  • shawnz1102
  • · Replies 1 ·
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1

Why Is My Integration Approach Not Working?

  • Chewy0087
  • · Replies 1 ·
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1

Can This Trigonometric Identity Be Verified?

  • louie3006
  • · Replies 5 ·
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5

Verifying Identity: tan^2(x/2)=(sec x-1)/(sec x+1)

  • dexlex2001
  • · Replies 1 ·
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1

Help with cumulative distributions

  • sneaky666
  • · Replies 3 ·
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3

What is the Image of a Plane Under a Linear Transformation?

  • TsAmE
  • · Replies 8 ·
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8

Permutations and transpositions contradiction

  • morrowcosom
  • · Replies 5 ·
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5

Circle Geom: Show Line Tangent & Find Point of Contact

  • Andy21
  • · Replies 1 ·
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1

Combinatorics and alternating series

  • QuantumP7
  • · Replies 6 ·
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6

Cumulative distribution function question

  • sneaky666
  • · Replies 2 ·
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2

Stats: Help With Multiplication Rule

  • shawnz1102
  • · Replies 4 ·
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4

How to prove the law of cosines for all types of triangles?

  • vortex193
  • · Replies 4 ·
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4

Probability question, Very hard

  • shezleng
  • · Replies 45 ·
2
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45

For what value of x does (1/x) + (1/(1-x)) > 0

  • zeion
  • · Replies 4 ·
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4

Solving an Impossible Problem - Find Probability of Breakdown

  • Ch3st3r
  • · Replies 17 ·
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17

Verifying Trigonometric Identities

  • misssue
  • · Replies 2 ·
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2

How do you convert from one line equation to another?

  • Andy21
  • · Replies 5 ·
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5

How to Solve Rate of Return Analysis Problems

  • MHrtz
  • · Replies 2 ·
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2

Infinite number of perpendicular vectors?

  • Maybe_Memorie
  • · Replies 1 ·
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1

Introductory Level Calculus Question

  • Wormaldson
  • · Replies 10 ·
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10

Prove that ME=MC in a Circle Geometry ABCD

  • Lukybear
  • · Replies 2 ·
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2

Summing 4-Digit Numbers with 1,2,3,4

  • The legend
  • · Replies 9 ·
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9

What values of x satisfy the inequality x + 3^x < 4?

  • zeion
  • · Replies 2 ·
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2

Gemotry of circle and right angle

  • quantum_enhan
  • · Replies 3 ·
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3
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9

Deriving Formula for Radius of Conical Section at Height h

  • zorro
  • · Replies 11 ·
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11

Finding Points in the Third Quadrant Using the Distance Formula

  • adillhoff
  • · Replies 3 ·
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3

Deceptively Simple Integer Problem

  • chillfactor
  • · Replies 3 ·
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3

Problems with permutations and transpositions

  • morrowcosom
  • · Replies 2 ·
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2

Cos(x)+sin(x) = 0, Find all values?

  • DrummingAtom
  • · Replies 1 ·
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1

How can I reduce this expression to e^{mx}?

  • Saladsamurai
  • · Replies 3 ·
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3

Simplifying Fractions: Tips and Techniques for Combining Fractions

  • wocket92
  • · Replies 2 ·
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2

* Easy Linear Question. Slope and y intercept. Thanks

  • nukeman
  • · Replies 14 ·
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14

Prove x^3 - y^3 = (x - y)(x^2 +xy + y^2)

  • zeion
  • · Replies 26 ·
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26

Find all value of x where 5 - x^2 < 8

  • zeion
  • · Replies 3 ·
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3

Solving Geochemistry Homework: Log([Na+]/[H+])

  • orangepipe
  • · Replies 1 ·
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1

Proving Determinant(AB)=det(A)det(B)

  • touch the sky
  • · Replies 4 ·
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4

Solutions of Homogeneous System

  • zohapmkoftid
  • · Replies 9 ·
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9

Trigonometry Proof: Proving cos C in Triangle ABC

  • harimakenji
  • · Replies 11 ·
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11

Ordered Pair Solutions for a2 + 2ab + b2 = a + 4b | Non-Negative Integers

  • The legend
  • · Replies 7 ·
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7

Efficient Boolean Minimization Techniques: Simplifying Y = \bar{X}_1+\bar{X}_0

  • CentreShifter
  • · Replies 2 ·
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2

Solving a Degree/Radian Function: f(t) = 42cos(2t + 93°)

  • mwhowell
  • · Replies 4 ·
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4

Prove that this is an ideal of a commutative ring

  • annoymage
  • · Replies 2 ·
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2

A probability question about expected value

  • dmatador
  • · Replies 1 ·
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1

Solve 2x2 Matrix in 30 Mins: An Attempt

  • nicknaq
  • · Replies 1 ·
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1

Proving AM GM Inequality & Solving for Integers | Homework Help

  • The legend
  • · Replies 2 ·
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2

Trig solve for x [ Attempt Included ]

  • lovemake1
  • · Replies 3 ·
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3
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1

How Do You Solve Complex Fraction Equations?

  • The_big_dill
  • · Replies 9 ·
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9

Solve Slope & Y-Intercept for Cliff Height & Time to Top

  • 044
  • · Replies 1 ·
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1

How Many Unique 4-Letter Codes Can Be Created from Six Different Letters?

  • wvcaudill2
  • · Replies 14 ·
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14

* Need help with Finding the point of Intersection - Thanks

  • nukeman
  • · Replies 9 ·
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9

Geometry Proofs Help - Get Ready For Monday Exam!

  • ccseagle
  • · Replies 42 ·
2
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42

Probability: Given the Mean and Standard deviation

  • Nikki10
  • · Replies 2 ·
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2
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3
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9

Calculating Mean, Median or Mode for Ace-Inhibitor Patients

  • Nikki10
  • · Replies 2 ·
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2

Proof of logarithmic properties.

  • pollytree
  • · Replies 4 ·
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4

Inequalities (trig) + Attempted

  • lovemake1
  • · Replies 9 ·
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9

Trig #3 (Part solutions included)

  • lovemake1
  • · Replies 5 ·
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5

What Is the Probability That Only One Household Speaks Spanish?

  • glass.shards
  • · Replies 1 ·
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1

Solving Orthogonal Circles Problem

  • zorro
  • · Replies 4 ·
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4

Easy probability (venn diagrams/conditional pr)

  • t_n_p
  • · Replies 2 ·
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2

Statistics probability help needed (permutation?)

  • redfalcon
  • · Replies 13 ·
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13

Finding the a circle's tangent line which intersects a given point

  • jla2125
  • · Replies 4 ·
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4

Finding the Cross Product in R2: How is it Different from R3?

  • Radfire
  • · Replies 5 ·
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5

Proving the Centroid Theorem in Euclidean Geometry using Vector Techniques

  • Christina The
  • · Replies 1 ·
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1

Can You Prove This Infinite Series Inequality?

  • The legend
  • · Replies 15 ·
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15

Help with discrete random variables

  • sneaky666
  • · Replies 1 ·
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1

Help with my 2 easy but hard probability questions

  • sneaky666
  • · Replies 1 ·
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1

Maximizing Area of Norman Window

  • macbowes
  • · Replies 1 ·
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1

Determining angles and the 6 trig functions? D:

  • toyotadude
  • · Replies 2 ·
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2

Area of a non-right angled triangle with information missing

  • tinky
  • · Replies 4 ·
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4

Fundamental Principle of Counting Problem

  • LisaL
  • · Replies 2 ·
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2

Calculating Surface Area to Volume Ratio for Emulsified Droplets

  • Searchme
  • · Replies 18 ·
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18

Converting 24min to Hours: True or False?

  • roza-chan
  • · Replies 5 ·
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5

Are Events A and B Independent Based on Given Probabilities?

  • frankfjf
  • · Replies 4 ·
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4

Proof: Coordinate Rotation Around (0,0)

  • Maybe_Memorie
  • · Replies 5 ·
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5

Find the equation of the circle

  • zorro
  • · Replies 3 ·
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3
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2

Help and explain to me how to solve it ?(new question )

  • kingboy
  • · Replies 1 ·
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1

Solve Econ Math Problem: Price & Quantity of Apples

  • Error Prone
  • · Replies 2 ·
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2

Need help on setting up an equation of population

  • Vintageflow
  • · Replies 1 ·
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1

Discover the Derivation of Closed Form Summation | Step-by-Step Explanation

  • mohabitar
  • · Replies 15 ·
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15

Linear Equations dealing with motion

  • kazuchan
  • · Replies 3 ·
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3