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

When to use the formula (nCr x nCr)/nCr?

  • jasper10
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2

How Do You Calculate the Probability Density Function for Scheduled Visits?

  • Dollydaggerxo
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Solving Probability Problem: P(Z^3 > 1)

  • danniim
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1

Algebraic Properties of Matrix Operations

  • EV33
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2
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7

Converting units in scientific notation to other units.

  • CinderTwig
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5

Inverse of f(x): Is it a Function or Relation?

  • Monocerotis
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Blood types probabilities problem

  • Mspike6
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6

Find feild where 1 = 0 and show that it is the only one

  • rosh300
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3

Help with identities math problem?

  • shocklightnin
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1

Converting 4312 from Base 10 to Base 6: A Homework Solution

  • um0123
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2

How long will it take for polonium-218 to decay to 30%?

  • Edgar92
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6

Infinite Summation: Define Tn & Find x,a Relationship

  • krayzee
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(1.73 x 10^3) (2.0 x 10^3) = 3.5 x_______?

  • land_of_ice
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2

Geometric distribution problem

  • danniim
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4

How Can I Solve This Integral Using Trigonometric Substitution?

  • sania16
  • · Replies 4 ·
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4

Simplify \sum_{i=0}^{n}\binom{n}{i}2^{n-i} to 3^n

  • noblerare
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2

Finding specific heat with unknown Q

  • Kingbaldur
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14
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5

Prove that 0v = 0 for an arbitaryvector v belong to V

  • zeion
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5

Prove Power Set equation by Induction

  • Happyzor
  • · Replies 4 ·
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4

How do I make a compensation vector?

  • yamugushi
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2

Prove that the additive identity in a vector space is unique

  • zeion
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5

What Is the Domain of the Function h(x) = sqrt(4 - x) + sqrt(x^2 - 1)?

  • crono_
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8
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14

Develop Cubic equation with a few points

  • LSCupcake
  • · Replies 5 ·
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5

Why does shifting a function to the right require a smaller input variable?

  • greenneub
  • · Replies 3 ·
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3

Calculating Effect of Wind on Sprint Time: Why?

  • heraclius
  • · Replies 4 ·
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4

Normal Distribution: Hypothesis Testing

  • Draggu
  • · Replies 8 ·
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8

Limit of Function at (-1,3): Does it Exist?

  • Nope
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4
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5

Solving for Guy Wires using the Law of Cosines - 100ft Tower on a Hill

  • gabrielh
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8
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19

Solve the equation (sin and cos problems)

  • jegues
  • · Replies 16 ·
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16

How do you determine equation for this simple composite function?

  • Cuisine123
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2

Efficient Enumeration of Elements in a Group Defined by Generators

  • ethylparaben
  • · Replies 3 ·
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3

Econometric Notation: Understanding E (GPA|SAT) and Its Meaning

  • 60051
  • · Replies 1 ·
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1

Will someone correct my Trig homework?

  • Gringo123
  • · Replies 6 ·
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6

Derivative optimization trig functions, give it a try please grade 11 math

  • livelaughlove
  • · Replies 6 ·
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6

Log5(x) = 16logx(5) solve for x

  • TyErd
  • · Replies 12 ·
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12

Solving 12x^2 - 9 = 0: What to Do Next?

  • Jimmy84
  • · Replies 10 ·
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10

Questions: How Far from Point P is a Given Line?

  • golb0016
  • · Replies 5 ·
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5

How Do Composite Transformations Affect Coordinates?

  • golb0016
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1

Find center and radii of a circule

  • lucky strike
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1

Proving a=b=2: Simple yet Annoying Homework Equation Solution

  • Norway
  • · Replies 37 ·
2
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37

:trigonometric identity question

  • Edgar92
  • · Replies 4 ·
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4

Discover the Relationship Between Even Functions and Modulus of Continuity

  • matt_747
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2

How do I change the variable in this expression?

  • PolyFX
  • · Replies 3 ·
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3

Cubic Polynomials: Solving w/o Rational Roots

  • Jack Diamond
  • · Replies 3 ·
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3

Lateral Area and Volume of a Pyramid

  • golb0016
  • · Replies 1 ·
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1

Micrometer reading/area of wire calculation

  • Deliria
  • · Replies 4 ·
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4

Calculating Volume of a Cone: Need Help?

  • golb0016
  • · Replies 5 ·
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5

Prove Lebesgue Measure of f-g over [a,b]

  • matt_747
  • · Replies 1 ·
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1

What is the bearing of a ship sailing 120 km on a heading of 070 degrees?

  • Gringo123
  • · Replies 4 ·
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4

Find the length of the adjacent

  • Gringo123
  • · Replies 2 ·
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2

Deck of Cards Probability Question

  • mr.physics
  • · Replies 12 ·
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12

Proving Divisibility of 'abba' & 'abbbba' by 11

  • um0123
  • · Replies 8 ·
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8

Proofing a Rhomb - Get the Answer Here

  • aRTx
  • · Replies 3 ·
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3

Continuity of Multivariable Functions

  • Chewy0087
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5
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3

Proving Sufficient Estimators for Gamma Distribution | Homework Solution

  • cse63146
  • · Replies 8 ·
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8

Unit vector perpendicular to two known vectors

  • cjwalle
  • · Replies 2 ·
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2

Rational Coefficients & Non-Rational Roots: A Puzzling Cubic Polynomial

  • Mentallic
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2

How do I factorise this cubic expression?

  • physicsfun_12
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3
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6

How Do You Calculate the Surface Integral of a Cylinder?

  • hhhmortal
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1

What is the solution for -42.2=-10.999x+-4.9x^2?

  • Shawn Garsed
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4

Mathematical Induction: Chapter 1, Example 4 from WiM? by Courant

  • DarrenM
  • · Replies 5 ·
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5

Help with finding the expectation

  • cse63146
  • · Replies 9 ·
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9
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4

Solving a Trigonometric Equation to Hit a Moving Target

  • peanut648
  • · Replies 1 ·
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1

Have I rearraged this formula correctly?

  • Gringo123
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2

Solving the Quadratic Equation: x^2 - 5x >= 0

  • Jordash
  • · Replies 2 ·
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2

Proving the Identity: cos(2x)-cos(4x)/sin(2x)+sin(4x)=tanx | Homework Help

  • Superstring
  • · Replies 9 ·
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9

Use x^2+2 in the Difference Quotient

  • Tonik
  • · Replies 3 ·
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3

Maximizing Revenue for Lakeside Amusement Park

  • rice1am
  • · Replies 3 ·
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3

Simplifying Algebraic Expressions

  • Jimmy84
  • · Replies 3 ·
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3

Applying a sinusoidal function to tidal patterns on the earth.

  • stripes
  • · Replies 4 ·
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4

Writing an equation in general form (circles)

  • kamo00800
  • · Replies 3 ·
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3

Help with Ratio: Mr Smith & Mr Jones 24:9

  • Gringo123
  • · Replies 1 ·
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1

Product of two consecutive integers

  • nobahar
  • · Replies 9 ·
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9

How do I solve for x in this logarithmic equation?

  • Cuisine123
  • · Replies 1 ·
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1

What is the next number in the sequence 25, 27, 30, 15, 5, 7, 10?

  • Drksilver163
  • · Replies 4 ·
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4
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12

Help I dont understand Geometry Proofs at all

  • _humanoid_
  • · Replies 1 ·
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1

Solve x: Trig Equation (4/3)sinXcosX-sin22X=0

  • Cuisine123
  • · Replies 8 ·
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8

Please solve for x in this logarithmic equation? 4^x + 2^(x+1) = 60

  • Cuisine123
  • · Replies 2 ·
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2

Factor Completely (PreCalculus)

  • GreenPrint
  • · Replies 6 ·
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6

Vector Addition: Finding Resultant and Direction - Easy Homework Solution

  • seizureboi
  • · Replies 1 ·
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1

How can I simplify this equation by substituting for Vf2?

  • jedr
  • · Replies 5 ·
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5

Binomial probability, similar to lottery problems.

  • alexburns1991
  • · Replies 1 ·
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1

Solve the Blue Angle in a Simple Geometry Problem

  • Apexny
  • · Replies 1 ·
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1

Using the Quadratic Formula to Solve y + 1/y = x

  • paridiso
  • · Replies 4 ·
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4

How do I solve for x in this equation?

  • Cuisine123
  • · Replies 5 ·
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5

Converting recurring decimals to fractions

  • Gringo123
  • · Replies 17 ·
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17

How do I evaluate this log expression?

  • Cuisine123
  • · Replies 2 ·
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2

How do I solve for x in this log equation?

  • Cuisine123
  • · Replies 2 ·
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2
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1

Proof question from How to Prove It

  • paridiso
  • · Replies 2 ·
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2