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.

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7

Proof that (p^2)-4 is 3 almost-prime infinitely often?

  • tuttlerice
  • · Replies 13 ·
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13

Solving for a General Formula in Two Series of Numbers

  • bobie
  • · Replies 15 ·
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15

Can fractions with common factors be reduced to form neighbor fractions?

  • chemistry1
  • · Replies 6 ·
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6

Finding the sum of 1 + 2a + 3a² + ... to n terms

  • lionely
  • · Replies 11 ·
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11

Finding q when Barbara scores exactly 20 of 50 basketball shots

  • Panphobia
  • · Replies 11 ·
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11

Summation Problem: Find Sum of 3r - 2r to n Terms

  • lionely
  • · Replies 3 ·
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3

Square Of A Number Is Non-negative

  • Bashyboy
  • · Replies 9 ·
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9

Triangle inequality proof in Spivak's calculus

  • chemistry1
  • · Replies 3 ·
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3

Sum to infinity question (G.P.)

  • lionely
  • · Replies 4 ·
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4

Probability that determinant has 0 value

  • utkarshakash
  • · Replies 25 ·
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25

Is my trig identity proof correct?

  • Snoozems
  • · Replies 4 ·
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4

What is the Correct Notation for Logarithmic Equations?

  • ThatDude
  • · Replies 7 ·
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7

How do you find the coordinates flipped for Trig question 11 part c?

  • Coco12
  • · Replies 18 ·
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18

Optimal Coins for Exact Change Below $1?

  • WannabeFeynman
  • · Replies 6 ·
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6

Why it does not work with a negative (trig problem)

  • BOAS
  • · Replies 3 ·
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3

General solution to cos3θ = sin2θ

  • BOAS
  • · Replies 5 ·
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5

Solving af(x+y) + bf(x-y) = cf(x) + dy for f

  • DorelXD
  • · Replies 7 ·
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7

Middle Terms in an Arithmetic Series

  • lionely
  • · Replies 6 ·
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6

Finding acceleration and friction in a two-equation system

  • kwixson
  • · Replies 4 ·
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4

Find Type of Triangle Given r1-r2-r3

  • utkarshakash
  • · Replies 3 ·
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3

Determine which triangle is this

  • utkarshakash
  • · Replies 5 ·
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5

Ln(9/4) + ln (16/9) - ln (3/1)

  • 939
  • · Replies 3 ·
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3

Probability: what are the chances of shooting a target at least once?

  • ainster31
  • · Replies 7 ·
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7

Probabilty with random variable

  • DotKite
  • · Replies 8 ·
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8

Finding the greatest value of a function

  • shivam01anand
  • · Replies 19 ·
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19

Solve for the slope and length of a line segment

  • Husaaved
  • · Replies 2 ·
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2

Predicate logic - true or false formulae

  • sparta123
  • · Replies 1 ·
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1

How Do You Tackle a Quartic Equation Like This?

  • DorelXD
  • · Replies 13 ·
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13

What is the probability of winning with 5 tickets?

  • Qube
  • · Replies 5 ·
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5

Find the value of k in the equation

  • shivam01anand
  • · Replies 18 ·
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18

What is the value of the natural logarithm multiplied by two?

  • acelya
  • · Replies 3 ·
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3

Nature of the roots of the equations

  • shivam01anand
  • · Replies 9 ·
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9

Basic question on spivak's calculus

  • chemistry1
  • · Replies 4 ·
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4

Simplifying (x+y+2z)³−(y+2z−x)³−(2z+x−y)³−(x+y−2z)³

  • superduck
  • · Replies 4 ·
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4

Proof of Angles: Does it Seem Correct?

  • chemistry1
  • · Replies 3 ·
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3

What Determines the Domain of f(g(x)) for Given Functions?

  • Coco12
  • · Replies 1 ·
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1

Can Cardano's formula solve x³ - px + q = 0?

  • bobie
  • · Replies 24 ·
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24

Minimum radius for circular sprinkler to water square garden

  • shadowboy13
  • · Replies 6 ·
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6

How Do You Calculate Change in Elevation on a Railroad Incline?

  • Medgirl314
  • · Replies 16 ·
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16

Probability with a recursive definition

  • DotKite
  • · Replies 1 ·
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1

Trigonometry - Associated Acute Angles

  • BOAS
  • · Replies 8 ·
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8
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10

Is There a Mistake in Solving this Right Angle Triangle Problem?

  • chemistry1
  • · Replies 7 ·
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7

Finding positive integers where 1/a² + 1/b² = 1/c²

  • ThienNguyen
  • · Replies 11 ·
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11

How can Raju effectively allocate his study time for his upcoming exam?

  • dexterdev
  • · Replies 8 ·
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8

Use vectors to find coordinate of a point

  • mesa
  • · Replies 3 ·
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3

SImplifying logarithmic functions

  • j9mom
  • · Replies 2 ·
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2

Inputs and outputs of composite function

  • Coco12
  • · Replies 32 ·
2
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32

Question on how to calculate this probability.

  • steveryan
  • · Replies 21 ·
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21

How can I understand logarithms and mantissas without a calculator?

  • Qube
  • · Replies 16 ·
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16

How are P1-P3 used to justify subtracting a from both sides in Spivak?

  • chemistry1
  • · Replies 2 ·
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2

Why Does the Order of Drawing Marbles Affect the Probability Calculation?

  • DotKite
  • · Replies 6 ·
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6

Finding domain and ranges for composition function

  • Coco12
  • · Replies 10 ·
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10

Domain and ranges of composition function

  • Coco12
  • · Replies 8 ·
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8

Compound bar chart - to round or not round percentages?

  • 3vo
  • · Replies 1 ·
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1

Finding f(g(x)) with f(x)=1/(1+x) and g(x)=1/(2+x)

  • Coco12
  • · Replies 14 ·
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14

Problem regarding complex numbers

  • sankalpmittal
  • · Replies 3 ·
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3

Optimal Itinerary Planning for a Business Trip to Six Major Cities

  • DotKite
  • · Replies 2 ·
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2

Convert Angles from Sexagecimal to Centesimal System

  • chemistry1
  • · Replies 1 ·
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1

System of Equations Involving a Quadratic: Have Answer <> Understand

  • kwixson
  • · Replies 2 ·
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2

8 letter words with 3 vowels and non-repeating consonants

  • Miike012
  • · Replies 9 ·
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9

Some questions in Queueing Theory

  • sigh1342
  • · Replies 2 ·
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2

Identifying Exponential Growth or Decay in (e^4-x) + 2

  • j9mom
  • · Replies 4 ·
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4

Why does proving a+b=a+c implies b=c also prove zero is unique?

  • citea
  • · Replies 5 ·
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5

Is a Sliced Circle Segment Equivalent to Half an Ellipse?

  • bananabandana
  • · Replies 2 ·
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2

Find the value of trigonometry

  • songoku
  • · Replies 6 ·
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6

Logarithmic and exponential equations

  • j9mom
  • · Replies 5 ·
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5

Maximum value of |√(x⁴−3x²−6x+13)−√(x⁴+5x²+4)|

  • utkarshakash
  • · Replies 9 ·
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9

How should I intepret P(X<Y<Z)?

  • Sandbo
  • · Replies 11 ·
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11
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3

Difference between codomain and range with examples

  • Miike012
  • · Replies 1 ·
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1

How Does Ito's Lemma Simplify the Stochastic Integral of W^n?

  • ra_forever8
  • · Replies 4 ·
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4

Solve for t in 1/2 + π/4 = (9.8/4)cos(2t) + sin(2t)

  • mesa
  • · Replies 3 ·
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3
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5

How do I find the equation of this parabola?

  • Jarfi
  • · Replies 2 ·
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2

Max Area of Triangle with Sides (0,1], [1,2], [2,3]

  • Vineeth T
  • · Replies 6 ·
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6

Questioning Recurrence Relation: 3n-1 - an-1

  • Miike012
  • · Replies 3 ·
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3
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5

Is Increasing Eggs in an Apples/Egg Ratio a Reduction?

  • Physicist3
  • · Replies 2 ·
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2

How do I convert a repeating decimal from one base to another?

  • srfriggen
  • · Replies 12 ·
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12

Finding Orthogonal Vectors in R4 with Norm 1

  • sevag00
  • · Replies 22 ·
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22

Finding Recurrence Relation for Bit Strings with Consecutive Zeros

  • Miike012
  • · Replies 1 ·
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1

Trigonometry problem involving cylinders.

  • coderot
  • · Replies 3 ·
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3

Finding Prime numbers using Euler's formula

  • ex81
  • · Replies 10 ·
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10

On calculation weighted average of two positive numbers

  • drittel_regel
  • · Replies 1 ·
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1

Write rational function equation given graph

  • Coco12
  • · Replies 12 ·
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12

How to solve 2sin(3a)=√2 symbolically

  • chemistry1
  • · Replies 6 ·
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6

What is the minimum distance between a tangent and normal of a parabola?

  • utkarshakash
  • · Replies 15 ·
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15

Is the Dart Throwing Data a Gaussian Distribution?

  • Dgray101
  • · Replies 2 ·
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2
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4

Triangle with median and altitude

  • utkarshakash
  • · Replies 2 ·
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2

How to Calculate the Factorial of Avogadro Number?

  • ananthu017
  • · Replies 5 ·
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5

How Do I Express Vector PA as a Linear Combination of Vectors a and b?

  • MSG100
  • · Replies 16 ·
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16

What is the minimum length chord of a circle passing through a specific point?

  • utkarshakash
  • · Replies 3 ·
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3

Proving an Inequality with Elementary Methods

  • DorelXD
  • · Replies 16 ·
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16

Solving for base angles in a congruent triangle

  • tomtomtom1
  • · Replies 5 ·
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5

Finding triangle areas using Heron's formula and ratios

  • Jet1045
  • · Replies 2 ·
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2

How can I solve for x in the equation z = y/x * 1/(x-y)?

  • onequestion321
  • · Replies 2 ·
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2

Reflecting an ellipse over the line x-y-2=0

  • utkarshakash
  • · Replies 1 ·
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1