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

Graphics using Abstract Algebra

  • zak100
  • · Replies 4 ·
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4

Solving System of Equations: Understanding the Analytical Reasons

  • greg_rack
  • · Replies 2 ·
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2

Adding Vectors: E1 + E2 = Ep (Angle = 60°)

  • duchuy
  • · Replies 2 ·
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2

Using Euler's Formula to write a fraction in another form

  • WhiteWolf98
  • · Replies 12 ·
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12

Ratio (sharing an amount among 3 people)

  • Natasha1
  • · Replies 1 ·
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1

Quadratic equation with roots of opposite signs

  • brotherbobby
  • · Replies 6 ·
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6

Using Complex Conjugates to Decompose a Fraction

  • WhiteWolf98
  • · Replies 8 ·
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8

Distance between dates - in Balinese

  • BurtZ
  • · Replies 10 ·
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10

Quadratic equation with no rational roots

  • brotherbobby
  • · Replies 12 ·
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12

Cosine of Angles 120, 60, 30 - Math Solution

  • Terry Coates
  • · Replies 4 ·
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4

Continuously payable annuities with force of interest

  • Eclair_de_XII
  • · Replies 2 ·
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2

Transforming sinx to sinx + cosx

  • maxim07
  • · Replies 6 ·
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6

Finding the range of values of x where a curve has a negative gradient

  • Natasha1
  • · Replies 21 ·
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21

Set Notation: A x B Product of Powers of Prime Factors

  • Natasha1
  • · Replies 2 ·
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2

Median and mean when there are 2 variables

  • Natasha1
  • · Replies 10 ·
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10

Find the probability that this number is in set A but not in set B

  • Natasha1
  • · Replies 2 ·
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2

Cosine Rule: n=2,3-x,y,z Calculation

  • Terry Coates
  • · Replies 3 ·
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3

What is the domain of a trig function with y = 2sin(x)?

  • so_gr_lo
  • · Replies 3 ·
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3

To prove a trigonometric identity with tan() and cot()

  • brotherbobby
  • · Replies 2 ·
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2
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19

Optimum replacement policy calculation

  • Master1022
  • · Replies 1 ·
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1

Calculating the Mayan Date 0,2,3,5,10 Days Later from 8,10,193

  • BurtZ
  • · Replies 3 ·
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3

To prove that a given quadratic has integral roots

  • brotherbobby
  • · Replies 20 ·
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20

Three () distinct real roots of a quadratic equation

  • brotherbobby
  • · Replies 27 ·
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27

Complex numbers: Solve ##Z^2\bar{Z}=8i##

  • DottZakapa
  • · Replies 29 ·
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29

Combine two standard deviations?

  • Addez123
  • · Replies 3 ·
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3

A problem involving logarithms

  • sahilmm15
  • · Replies 9 ·
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9

Solving Math Problem with Crates: A Maximum Dividers Challenge

  • bamia
  • · Replies 5 ·
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5

How do I solve this polynomial limit?

  • greg_rack
  • · Replies 9 ·
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9

Doubt solving a polynomial inequality

  • greg_rack
  • · Replies 4 ·
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4

TI-83+ Graphing Calculator giving wrong answer? (Complex numbers)

  • Astro
  • · Replies 22 ·
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22

What is the Probability of Engine Failure for a Plane with Four Engines?

  • Addez123
  • · Replies 2 ·
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2

Number of choosing r non-consecutive numbers out of N natural numbers

  • kshitij
  • · Replies 20 ·
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20

Extraneous Solutions: Which step did it come from?

  • yucheng
  • · Replies 7 ·
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7

Points on a plane satisfying an equation

  • brotherbobby
  • · Replies 2 ·
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2

Find the middle terms of this binomial expansion

  • songoku
  • · Replies 4 ·
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4

Which points on the plane satisfy the given equation?

  • brotherbobby
  • · Replies 12 ·
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12

Confirm the frequency distribution table

  • chwala
  • · Replies 15 ·
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15

Solve for x in this index notation problem

  • chwala
  • · Replies 18 ·
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18
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2

Linear Equations: how to deduce this inequality is true?

  • yucheng
  • · Replies 1 ·
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1

How Should Compass Bearings Be Notated in Navigation Problems?

  • ajo1023
  • · Replies 9 ·
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9

How to Calculate the Complex Roots of x^5 = 10?

  • mardybum9182
  • · Replies 3 ·
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3

For z = x+iy find the relationship between x and y

  • mardybum9182
  • · Replies 2 ·
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2

Possible Permutations & Combinations

  • hello_math
  • · Replies 2 ·
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2

Finding the median in a bar graph problem

  • chwala
  • · Replies 17 ·
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17

Solving a modulus inequality in ##x##

  • brotherbobby
  • · Replies 16 ·
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16

What is the argument of 1+i in the complex number 1/(1+i)?

  • mcastillo356
  • · Replies 11 ·
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11

Help me with this Algebra problem please (quotient of complex numbers)

  • Math100
  • · Replies 13 ·
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13

Maximizing Your Chance of Winning a Number Guessing Game

  • derekderek123
  • · Replies 1 ·
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1

Iterative root finding for the cube root of 17

  • AN630078
  • · Replies 3 ·
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3

How to Solve Arithmetic Sequence Problems

  • Purpleshinyrock
  • · Replies 1 ·
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1
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4

A math problem related to circles

  • STEM_nerd
  • · Replies 11 ·
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11

Powers with fractional exponents that have an even denominator

  • Astro
  • · Replies 13 ·
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13

Angle between the hands of a clock (IWTSE)

  • TomK
  • · Replies 2 ·
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2

How to simplify this complex expression?

  • yamata1
  • · Replies 21 ·
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21

Problem solving an exponential limit

  • greg_rack
  • · Replies 27 ·
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27

How do two random variables correlate and remain independent?

  • archaic
  • · Replies 5 ·
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5

Find minimum value of f(x) in terms of variable a

  • songoku
  • · Replies 21 ·
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21

Stating logarithm in variables

  • songoku
  • · Replies 19 ·
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19

Linear combination of random variables

  • archaic
  • · Replies 8 ·
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8

Elementary algebra: find the value of x

  • chwala
  • · Replies 6 ·
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6

Graphing to find the intersections of lines and a parabola in this limit

  • Jalal_khan
  • · Replies 2 ·
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2

How to Determine Whether to Accept or Reject a Hypothesis?

  • physicslady123
  • · Replies 2 ·
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2

Understanding the Trajectory Equation: X^2+Y^2=5

  • Andrei0408
  • · Replies 7 ·
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7

Inverse trigonometric functions

  • MartynaJ
  • · Replies 6 ·
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6

Multiple Questions — Evaluating the graph of this polynomial

  • Marso
  • · Replies 13 ·
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13

Analytic geometry easy but tricky problem

  • greg_rack
  • · Replies 2 ·
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2
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7

Horizontal asymptote of a parametric function

  • greg_rack
  • · Replies 18 ·
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18

Determining a parameter so that it's a removable singularity

  • greg_rack
  • · Replies 15 ·
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15

Understanding the Concept of Sum in Physics: A Beginner's Guide

  • chocopop
  • · Replies 3 ·
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3

Where Do the Graphs of |3x-2| and 1/x Intersect and Diverge?

  • AN630078
  • · Replies 4 ·
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4

Win the 3-Digit Lottery: Jackpots & Deuces!

  • musicgold
  • · Replies 11 ·
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11

How Do I Solve Polynomial Problem #19?

  • yungman
  • · Replies 22 ·
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22

Remainder of polynomial division

  • songoku
  • · Replies 2 ·
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2

How Do You Formulate and Solve Rational Inequalities?

  • MartynaJ
  • · Replies 6 ·
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6

Solving Reciprocal Trigonometric Equation cot^2θ+5cosecθ=4

  • AN630078
  • · Replies 13 ·
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13

Why do fractional exponents result in the square root operator?

  • hackedagainanda
  • · Replies 2 ·
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2

Composite and Inverse Functions Problem

  • AN630078
  • · Replies 3 ·
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3
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6

Advanced functions (precalculus)

  • MartynaJ
  • · Replies 3 ·
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3

Graphical Transformations and Finding the Equation of a Curve

  • AN630078
  • · Replies 3 ·
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3

Stem and Leaf Plot for a Dependent Children-Homework Question

  • cbarker1
  • · Replies 1 ·
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1

Geometric Sequence and the Limiting Value

  • AN630078
  • · Replies 4 ·
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4

Geometric Sequence to solve an Interest Problem

  • AN630078
  • · Replies 2 ·
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2

Find the third side of a Triangle

  • TytoAlba95
  • · Replies 10 ·
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10
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5

Factor Theorem and Trigonometric Equations Help

  • AN630078
  • · Replies 1 ·
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1

Find the images of the following function

  • angela107
  • · Replies 3 ·
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3

Finding the determinant of a matrix using determinant properties

  • Bolter
  • · Replies 13 ·
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13

Prove that if a is even & b is any positive integer, then ab is even

  • sonadoramante
  • · Replies 9 ·
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9

Prove that if a & b are odd then a+b is even

  • sonadoramante
  • · Replies 4 ·
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4

Do you know a mnemonic to remember Prosthaphaeresis formulas?

  • LCSphysicist
  • · Replies 1 ·
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1

Radius of circumference circumscribed to a triangle

  • greg_rack
  • · Replies 1 ·
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1

Two variables in one equation....

  • greg_rack
  • · Replies 5 ·
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5

Hey I have a question about inequalities

  • MartynaJ
  • · Replies 5 ·
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5

I am having trouble solving this equation

  • billllib
  • · Replies 14 ·
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14

Binomial Expansion: Evaluating Coefficient from two binomials

  • AN630078
  • · Replies 7 ·
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7