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

Solve Probability Question #6: Find the Correct Answer Now!

  • Ronaldo95163
  • · Replies 6 ·
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6

Arithmetic progression sum and nth term

  • Suraj M
  • · Replies 11 ·
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11

Height of a spherical cap with known volume?

  • streeters
  • · Replies 2 ·
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2

Sum of a geometric series of complex numbers

  • whatisreality
  • · Replies 13 ·
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13
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7

Is w1/w2 = √r2/r1 the Correct Derivation for Circular Central Force?

  • SwedishFred
  • · Replies 21 ·
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21

Finding limitations for matrix

  • nuuskur
  • · Replies 4 ·
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4

Factorizing determinants and rules to simplify them

  • PcumP_Ravenclaw
  • · Replies 5 ·
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5

Proving Inequality $$4x^4 + 4y^3 + 5x^2 + y + 1 \ge 12xy$$

  • Vriska
  • · Replies 16 ·
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16

Probability of Non-Adjacent Zeros in 11-Digit Integer with 1 and 0 Digits

  • AdityaDev
  • · Replies 59 ·
2
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59

Solving R Homework: Sunspots Data

  • _N3WTON_
  • · Replies 15 ·
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15

Understanding Trigonometric Identities: Solving for -1

  • Marcus27
  • · Replies 3 ·
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3

How Many Unique 7-Digit Numbers Can Be Formed Using Specific Repeated Digits?

  • Mohd Taqi
  • · Replies 12 ·
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12

Normal distribution or Uniform distribution

  • Amol Musale
  • · Replies 4 ·
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4

Finding the equation to hyperbola

  • Niaboc67
  • · Replies 20 ·
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20

Find F(7) and F(a^2-2) (a≥2) -- Simplify .

  • Niaboc67
  • · Replies 2 ·
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2

Rate of Change for Ball Thrown: How to Use the Formula f(b)-f(a)/b-a

  • Niaboc67
  • · Replies 5 ·
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5

Probability question involving intersections

  • TheKracken
  • · Replies 3 ·
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3

Basic statistics/probability question

  • vanizorc
  • · Replies 6 ·
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6

Solving an equation, I have an incorrect solution

  • Alevelman
  • · Replies 5 ·
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5

I don't understand how parameters are eliminated

  • Eclair_de_XII
  • · Replies 11 ·
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11

What is the 2015th decimal number in the division 2015 by 7

  • Natasha1
  • · Replies 6 ·
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6

What is the real part of z when given 1/z = 1/R + 1/(iωL)?

  • whatisreality
  • · Replies 5 ·
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5

Product of Two Summations for Matrices and Vectors

  • PWiz
  • · Replies 11 ·
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11

Solve F(x,y) = 0 for y = 1: Solve Equation

  • Max0007
  • · Replies 4 ·
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4

How to find the vertex of G(t)=1/2(t^2-4t)

  • Niaboc67
  • · Replies 8 ·
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8

Calculating Easter Day in 2015

  • Natasha1
  • · Replies 6 ·
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6

Series, arithmatic progression.

  • psyclone
  • · Replies 2 ·
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2

Solving a Quadratic Equation: Finding the Minimum

  • Niaboc67
  • · Replies 1 ·
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1

Probability/Combinatorial Question

  • Rellek
  • · Replies 1 ·
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1

Can Sequence r_n Be Bounded by O(log2(log2 n))?

  • NATURE.M
  • · Replies 49 ·
2
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49

Finding the Bounded Region of x=0, y=0, y=x^2, y=4-x^2 and x=2

  • cloveryeah
  • · Replies 4 ·
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4

Finding the Axis of Symmetry in a Parabola: How to Solve the Problem

  • Niaboc67
  • · Replies 9 ·
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9

Ellipse Major Axis Determination

  • Niaboc67
  • · Replies 2 ·
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2

How can I solve this trigonometric equation using the given equations?

  • Suraj M
  • · Replies 5 ·
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5

Fixed point iteration, locally convergent

  • John Harris
  • · Replies 14 ·
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14

Marketing Research (Cost, Revenue, Etc.)

  • frownifdown
  • · Replies 11 ·
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11

Parametrization of Witch of Agnesi

  • PWiz
  • · Replies 2 ·
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2

Quadratic Inequality: Solve for 4/m-2/n Without a Calculator

  • LiHJ
  • · Replies 1 ·
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1

Math Algebra Problem: Empty Fuel Tank in 4.8 Hours

  • Max0007
  • · Replies 13 ·
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13

Finding the exact value of a summation.

  • NATURE.M
  • · Replies 6 ·
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6

Prove that a point in triangle is the centroid

  • Purplesquiggles
  • · Replies 6 ·
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6

System of linear and non-linear equations

  • abdo799
  • · Replies 2 ·
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2

Why does (p*q+2)-(p+q) always give a prime number?

  • John Harris
  • · Replies 9 ·
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9

I'm having trouble creating my own trig function

  • Adriane
  • · Replies 1 ·
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1

Weighted Least Squares Solution

  • samgrace
  • · Replies 5 ·
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5
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3

Probability of finding all 5 errors in a text with 3 people?

  • TheSodesa
  • · Replies 2 ·
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2
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3

Probability of At Least 1 Child Receiving 6 or 7 Candies

  • tony24810
  • · Replies 5 ·
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5

Segment of a circle (Exact form answer)

  • Matt
  • · Replies 12 ·
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12

Standard form, vertex form. Something isn't right here

  • Niaboc67
  • · Replies 12 ·
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12

Why Are My Composite Function Solutions Incorrect?

  • Niaboc67
  • · Replies 1 ·
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1

Finding 102 * 9.8/10^-4: Where Did I Go Wrong?

  • gracy
  • · Replies 16 ·
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16

Incircle Trig Problem: Proving a Triangle is Right-Angled | Homework Help

  • Appleton
  • · Replies 7 ·
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7

System of Equations (Matrices)

  • smashbrohamme
  • · Replies 2 ·
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2

Calculating Posterior Prob. of an Impurity's Presence

  • _N3WTON_
  • · Replies 8 ·
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8

Can someone check my solution to a trigonometric equation?

  • Eclair_de_XII
  • · Replies 5 ·
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5

Help with understanding a floor proof

  • Temp0
  • · Replies 3 ·
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3

-- cumulative distribution function, probability density

  • saulwizard1
  • · Replies 28 ·
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28

Average percent growth per year

  • gamow99
  • · Replies 13 ·
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13

What is geometric interpretation of this equality?

  • Shackleford
  • · Replies 26 ·
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26

DNA sequence modeled as 4 faced die

  • bowlbase
  • · Replies 11 ·
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11

Express a series in sigma notation

  • whatisreality
  • · Replies 10 ·
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10

Intersection between exponential models?

  • Capricorn1997
  • · Replies 11 ·
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11

Calculate A's Evolution Over 1000 Generations with Mutation Probability

  • bowlbase
  • · Replies 3 ·
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3

When magnitude of addition is equals to

  • H.D. M A K
  • · Replies 7 ·
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7

Trigonometry identities and equations

  • wei1006
  • · Replies 2 ·
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2

Equation for y to obtain an equation that represents circle

  • Niaboc67
  • · Replies 3 ·
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3

Precalculus -- determine the rate of change of the function

  • Niaboc67
  • · Replies 3 ·
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3

Filling in piecewise function from given graph

  • Niaboc67
  • · Replies 2 ·
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2

How do you graph the linear function f(x) = (x + p) + q?

  • lola2000
  • · Replies 4 ·
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4

Sequence Analysis (probability)

  • bowlbase
  • · Replies 15 ·
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15

Calculating Shoe Sales Probabilities: A Workbook Exercise

  • bnosam
  • · Replies 14 ·
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14

Solving equation involing radicals

  • issacnewton
  • · Replies 8 ·
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8

Maximum area of a triangle inscribed in another triangle?

  • Daveigh
  • · Replies 4 ·
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4

The plot of a linear relation given an equation

  • rwooduk
  • · Replies 2 ·
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2

Coin flip deal (stats/probability)

  • bowlbase
  • · Replies 14 ·
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14

Simple proof regarding integers

  • Yosty22
  • · Replies 5 ·
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5

Find Probability of Exactly One Event Occurring

  • NATURE.M
  • · Replies 12 ·
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12
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5

Expressing complex numbers in the x + iy form

  • Logan Land
  • · Replies 7 ·
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7

Calculating FFT for discrete values

  • electronic engineer
  • · Replies 5 ·
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5

Help with simplifying boolean expression

  • Extreme112
  • · Replies 2 ·
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2

Proofing My "Arithmetic?" Proof

  • mafagafo
  • · Replies 3 ·
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3

I want to prove the asymptotes for the inverse cotangent.

  • Eclair_de_XII
  • · Replies 1 ·
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1

Can a Graph Have m Times More Edges Than Vertices?

  • nuuskur
  • · Replies 1 ·
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1

How to Choose the Right Proof Method for Mathematical Propositions?

  • Saterial
  • · Replies 13 ·
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13

Sampling Frequencies: f1, f2, f3 with fs=1000Hz

  • electronic engineer
  • · Replies 2 ·
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2

Number of possibilities of words with limitations

  • nuuskur
  • · Replies 9 ·
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9
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2

Need some help with solving a logarithmic equation

  • Adir_Sh
  • · Replies 11 ·
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11

Proving Trig Identity: csin(A-B/2)=(a-b)cos(C/2)

  • Appleton
  • · Replies 10 ·
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10

Mathematical proof for non linear system

  • Jimmy Johnson
  • · Replies 2 ·
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2

How Many Girls Can Swim in a School of 2100 Pupils?

  • t3rom
  • · Replies 4 ·
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4

Compound Angles: Find Exact Value of cos(a+b)

  • xcortz
  • · Replies 10 ·
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10

Trig Function Help: Get Answers Now

  • Eric Manuel
  • · Replies 14 ·
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14

Identifying variables as quantitative or categorical

  • cashflow
  • · Replies 7 ·
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7

Further Trigonometry Identity (Proving question)

  • wei1006
  • · Replies 1 ·
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1

Trigonometric Identities and equations

  • wei1006
  • · Replies 4 ·
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4