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

Problem with calculating eigen vector for 2*2 Matrix

  • zak100
  • · Replies 5 ·
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5

Why am I getting a negative age in this age problem?

  • Natasha1
  • · Replies 5 ·
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5

Is (3/4)*(a^2/c) less than a with multiple inequalities?

  • monsmatglad
  • · Replies 3 ·
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3

Partial Fraction Expansion - Repeated Roots Case

  • JohnSmith0909
  • · Replies 1 ·
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1

Find the coefficient from the expansion (Explanation request

  • Rijad Hadzic
  • · Replies 1 ·
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1

How Do You Find Eigenvectors of a 2x2 Matrix?

  • zak100
  • · Replies 6 ·
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6

Find the factors of an equation

  • zak100
  • · Replies 4 ·
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4

Adding air resistance to bungee jump depth formula

  • Jess3
  • · Replies 2 ·
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2

Overall heat transfer coefficient with fouling factor in tubes

  • Tiberious
  • · Replies 23 ·
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23
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6

Continuous random Var range and example

  • zak100
  • · Replies 11 ·
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11

Can Bayes Theorem Predict the Next Winner in a Team Matchup?

  • zak100
  • · Replies 10 ·
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10

3 cans to be handed out to three people

  • Rijad Hadzic
  • · Replies 4 ·
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4

Showing transformations from y=x² to f(x)=-(3+x)²+1

  • Faith S
  • · Replies 2 ·
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2

Axioms of Probability: Cell Phone Factory

  • noreturn2
  • · Replies 4 ·
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4

Why is the normalized vector in this projection matrix solution incorrect?

  • UOAMCBURGER
  • · Replies 3 ·
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3

Matrix Solutions: Find Linearly Independent Solutions

  • UOAMCBURGER
  • · Replies 4 ·
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4
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6

How do you solve in terms of y 4x^2-2xy+3y^2=2

  • JKCB
  • · Replies 5 ·
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5

Finding b in point-slope form

  • theb2
  • · Replies 10 ·
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10

Deriving the triangle area formula from scratch

  • subhradeep mahata
  • · Replies 9 ·
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9

Finding circle center passing through A(1,1) and tangent to y=2x-3 at B(3,3)

  • NormanJaden12
  • · Replies 2 ·
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2

Finding b for quadratic x²-2bx+7 with minimum value 6

  • YoungPhysicist
  • · Replies 6 ·
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6

Complex numbers: adding two fractions and solving for z

  • lamefeed
  • · Replies 5 ·
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5

Triangle determined by arithmetic and geometric sequences

  • Robin04
  • · Replies 7 ·
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7

Can I Use Vector Notation for Graph Translations?

  • R_Sarav
  • · Replies 4 ·
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4

Understanding Complex Numbers in Equations

  • lamefeed
  • · Replies 20 ·
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20

Absolute value equality solution

  • marksyncm
  • · Replies 18 ·
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18

Finding x when f(-3)=5 and f^-1(5)=3x-1

  • Faith S
  • · Replies 1 ·
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1

How can I find the value of n when given a polynomial equation?

  • lioric
  • · Replies 8 ·
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8

Partial fraction decomposition of 1/(x²-1)²

  • opus
  • · Replies 3 ·
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3

Finding the range of x/(x^2+x+1)

  • navneet9431
  • · Replies 2 ·
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2

If f is injective and |A| = |B|, prove f is surjective

  • UOAMCBURGER
  • · Replies 3 ·
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3

Why Must n Equal 4q or 4q+2 If It Isn't 4q+1 or 4q+3?

  • UOAMCBURGER
  • · Replies 10 ·
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10

Proof by Contradiction: Converse of A(n) Holds for All n ∈ Z

  • UOAMCBURGER
  • · Replies 5 ·
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5

Solving absolute values of trigonometry

  • Physics53
  • · Replies 1 ·
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1

Proof via mathematical induction

  • UOAMCBURGER
  • · Replies 17 ·
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17

Error bar calculation (statistics)

  • roam
  • · Replies 15 ·
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15

Is the Relation Defined by 5 Dividing (2x + 3y) an Equivalence Relation on Z?

  • UOAMCBURGER
  • · Replies 7 ·
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7

What is the meaning of the bond's yield to maturity?

  • ussername
  • · Replies 2 ·
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2

Proof of an inverse trigonometric identity

  • Krushnaraj Pandya
  • · Replies 6 ·
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6

A non-intersecting family of circles

  • rajeshmarndi
  • · Replies 3 ·
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3

How do I find the minimum of 5a + b?

  • baldbrain
  • · Replies 46 ·
2
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46

Finding height and area of trapezoid from its legs and bases

  • ISamson
  • · Replies 12 ·
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12

Power as a function of current from voltage and resistance

  • Zacko282
  • · Replies 18 ·
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18

Calculating the value of determinant by using row-column tri

  • navneet9431
  • · Replies 2 ·
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2

Geometry question (sketch included)

  • member 428835
  • · Replies 8 ·
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8

Proving A=B ∪ (A ∩ B) with Distributive Law

  • senobim
  • · Replies 7 ·
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7

Finding ages from ratio conditions: what percentage is asked for?

  • alijan kk
  • · Replies 5 ·
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5

Area of Rectangle: Find Number of Tiles Needed

  • alijan kk
  • · Replies 4 ·
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4

Find the next number in sequence 83 80 84 83 88 95

  • dirk_mec1
  • · Replies 24 ·
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24

Parallelism of Time-varying Vectors

  • baldbrain
  • · Replies 5 ·
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5

Finding rational or irrational roots of x^5 + x = 5

  • Subrahmanyan
  • · Replies 4 ·
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4

Geometric Sequence: Find X, 5th Term

  • alijan kk
  • · Replies 6 ·
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6

Maximum area of a fenced-in half a circle

  • Mathman2013
  • · Replies 2 ·
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2

Solution check for Logarithmic equation

  • opus
  • · Replies 13 ·
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13

Finding x in Parallel Lines Geometry Problem

  • david3305
  • · Replies 5 ·
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5

Simple trigonometric simplification

  • Krushnaraj Pandya
  • · Replies 2 ·
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2

Problem in finding a general solution

  • navneet9431
  • · Replies 4 ·
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4

Trouble developing trig expression

  • frkCarl
  • · Replies 5 ·
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5

Factoring -2x³ - 3 with irrational or complex zeros

  • opus
  • · Replies 14 ·
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14

How Can You Solve for x When L1 and L2 are Parallel?

  • david3305
  • · Replies 4 ·
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4

How Do You Solve a System with Variables and Constants?

  • JaZZyCooL
  • · Replies 7 ·
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7

Angles inscribed in circles part 1

  • grimTesseract
  • · Replies 6 ·
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6

How Do You Solve sin^2(x) + tan^2(x) = √2?

  • ForceBoy
  • · Replies 2 ·
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2

Today, in our class, we received a trigonometric equation

  • Bobs
  • · Replies 4 ·
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4

Constructing accurate diagrams of word problem- Trig

  • opus
  • · Replies 8 ·
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8

Random walk - why is the STD equal sqrt(n)

  • gony rosenman
  • · Replies 9 ·
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9

Find the height of each right cylinder

  • Meadow Delorto
  • · Replies 5 ·
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5

Proving (tan φ + sec φ - 1)/(tan φ - sec φ + 1) = (1 + sin φ)/cos φ

  • chwala
  • · Replies 12 ·
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12

What is the proper way to present mathematical problems on online forums?

  • Muhammad Danish
  • · Replies 13 ·
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13

Solving for time in an exponential equation

  • ForceBoy
  • · Replies 12 ·
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12

Probability of winning 10 times in 12 matches

  • FranzDiCoccio
  • · Replies 17 ·
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17

Conics - How to identify figures in the plane?

  • José Ricardo
  • · Replies 28 ·
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28

Combining fractions with radicals and negative signs

  • opus
  • · Replies 8 ·
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8

How do we solve this cubic equation

  • chwala
  • · Replies 13 ·
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13

Find the third coordinate of a vertex of an equilateral triangle

  • parshyaa
  • · Replies 11 ·
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11

How to calculate total interest from annuity-immediate?

  • Eclair_de_XII
  • · Replies 4 ·
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4

Finding the radius of small circles inscribed with a square

  • HAF
  • · Replies 18 ·
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18

Determine the standard deviation of these results

  • Tiberious
  • · Replies 10 ·
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10

Maximize product within given ranges

  • opus
  • · Replies 11 ·
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11

A+b=236, What numbers to get a maximum product ab?

  • opus
  • · Replies 21 ·
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21

Comparing enthalpy and internal energy change with signs

  • subhradeep mahata
  • · Replies 15 ·
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15
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14

How Do You Solve Matrix Equations with a Calculator?

  • KF33
  • · Replies 4 ·
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4

How Do You Solve a Circle's Radius Problem Using the Quadratic Formula?

  • Saracen Rue
  • · Replies 11 ·
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11

What is the dual concept in truth tables?

  • Suyash Singh
  • · Replies 5 ·
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5

Simplifying sin²(x)+sin²(x)tan²(x)

  • opus
  • · Replies 10 ·
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10

What is the Correct Method for Finding Height Using Geometry?

  • Coderhk
  • · Replies 13 ·
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13

Find the Area of the Shaded Section in a Circle

  • M. M. Fahad Joy
  • · Replies 12 ·
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12

Spivak's "Calculus": AM-GM inequality problem.

  • Adgorn
  • · Replies 6 ·
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6

Finding amplitude, period, phase shift on uglier functions

  • opus
  • · Replies 9 ·
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9

Inverse Trig Functions and Reciprocals

  • opus
  • · Replies 15 ·
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15

Isolating the Y variable in a Trigonometric Equation

  • opus
  • · Replies 9 ·
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9

Constructing g(f(x)) Equation for f(x) = A/(x^2) with Given Conditions"

  • sha1000
  • · Replies 2 ·
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2

Why do only denominators of the form 2^n5^m give terminating decimals?

  • Natasha1
  • · Replies 6 ·
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6

Find All Possible Values of x When 3 Vectors are Linearly Dependent

  • fiksx
  • · Replies 56 ·
2
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56

Designing a Multimodal Learning Preference Test Using VARK Model

  • Zayn
  • · Replies 1 ·
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1

Power set elements with cardinality 4 from a 3-element set

  • Rijad Hadzic
  • · Replies 13 ·
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13