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

Interval Notation: f(x) > 36 for x < 21

  • shoook
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3

Need help on understanding cone geometry

  • chyo
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1

Is the Analysis of H(x)=4 as a Linear Function Correct?

  • shoook
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2

Sine, Cosine and Tangent Trig Help

  • Inkcoder
  • · Replies 7 ·
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7

What Are Some Challenging Applications of Complex Numbers in Mathematics?

  • Morchelloo
  • · Replies 10 ·
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10

What is the angular velocity of the front wheels in rpm?

  • tiger21
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1
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4

How Do You Calculate the Height of a Building Using Trigonometry?

  • illmatic899
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1

Proving trigonometric equation?

  • skateza
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11

What does sinxcosx equal?

  • Ascending One
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2

Measures of Central Tendency & t-86

  • kuahji
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2

Is Polynomial Division by x^2-4 Solvable for Given Coefficients?

  • nirvana1990
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6

How to Rationalize the Denominator of a Complex Fraction?

  • Trail_Builder
  • · Replies 9 ·
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9

Find all the different limits in + infinity

  • JPC
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5

Elimination Math Problem: Solving x and y Equations

  • nirvana1990
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4

Probability: arrangements with identical elements

  • kingwinner
  • · Replies 19 ·
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19

How Do You Solve a Pre Calculus Problem with Congruent Sides and Diagonals?

  • shawonna23
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4

How do I solve simultaneous equations with squared terms and fractions?

  • nirvana1990
  • · Replies 11 ·
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11

Converting from Cartesian to Parametric form

  • JFonseka
  • · Replies 5 ·
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5

What Value of c Makes the Cubic Equation Have a Double Root?

  • TbbZz
  • · Replies 7 ·
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7

Factoring Problem a^2 - b^2 + 2bc - c^2

  • A_Moose
  • · Replies 6 ·
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6

Find the zeros: Includes a cube

  • Bo_
  • · Replies 6 ·
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6

Proofs of Convolution Properties: Step-by-Step Guide

  • ky2168
  • · Replies 3 ·
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3
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14

Prove x^2 = y^2 if x = y or x = -y

  • DavidSnider
  • · Replies 5 ·
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5

What is the Fuel Consumption of a Motor After 7 Minutes?

  • steve 99
  • · Replies 2 ·
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2

Qucik help with transformation matrices

  • rock.freak667
  • · Replies 3 ·
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3

Find Possible Values of k in Co-ordinate Geometry Question

  • Trail_Builder
  • · Replies 5 ·
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5

Solving Natural Logarithm Equation ln(x^2 + 1 ) -3lnx=ln2

  • physstudent1
  • · Replies 14 ·
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14

Is My Algebraic Simplification Correct?

  • tigerd12
  • · Replies 17 ·
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17

Trigonometric sequence - Find Un out of Un+1 - hard

  • JPC
  • · Replies 2 ·
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2

Do Parametric Equations x=t^2 and y=t^2 Describe a Line?

  • teffy3001
  • · Replies 2 ·
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2

Solving Recursive Sequence Homework

  • HallsofIvy
  • · Replies 3 ·
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3

What is the exact value of b when arg z = 60 degrees?

  • matadorqk
  • · Replies 5 ·
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5

Proving Cosine Identity: Is cos(t+2π) the Same as cos(t)?

  • Saladsamurai
  • · Replies 2 ·
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2

How do I convert 1.13 x 10^5 km/h^2 to m/s^2?

  • Champ07
  • · Replies 3 ·
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3

Line from origin with elevation theta in polar form?

  • BlackWyvern
  • · Replies 3 ·
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3

Area of Norman Window: Function of Width x

  • starchild75
  • · Replies 19 ·
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19

Phase Difference: Q&A | Find the Angle between V & I

  • FrogPad
  • · Replies 4 ·
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4

How do I stretch the graph of y=x^3 horizontally by a factor of 3?

  • shoook
  • · Replies 11 ·
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11

Optimizing with Derivatives I think

  • michaeldw
  • · Replies 1 ·
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1

Vector Cubed: Understanding the Expansion of (a_x + a_y + a_z)^3

  • MadMax
  • · Replies 11 ·
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11

Find Projections of b onto a Vector

  • roadrunner
  • · Replies 5 ·
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5

Algebraic Question: e(e*a) - e x (e x a) = 3a?

  • KleZMeR
  • · Replies 4 ·
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4

2 Different answers given the same point and slope

  • fk378
  • · Replies 5 ·
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5

How can I create equal probability of rolling specific sums with two dice?

  • Mainewriter
  • · Replies 10 ·
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10

Finding a Trig Identity to Show a Relation

  • indigojoker
  • · Replies 7 ·
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7

What Is the Equation of Line L Intersecting the Graph y=x+2/x?

  • tigerd12
  • · Replies 5 ·
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5

Solving Simultaneous Equations: x^2+y^2=5, 1/x^2+1/y^2=5/4

  • Rach123
  • · Replies 4 ·
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4

Solving Linear Equations: 6th Q, System of 3, Choosing Options, Wrong Answer

  • ThomasHW
  • · Replies 14 ·
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14

Can Linear Algebra Proofs Be Mastered with the Right Strategies?

  • Übermensch
  • · Replies 3 ·
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3

What Are the Visual Representations of These Mathematical Subsets?

  • mmathew23
  • · Replies 1 ·
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1

How Do You Prove Trigonometric Identities in Complex Number Equations?

  • chaoseverlasting
  • · Replies 4 ·
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4

Braille code probabilities homework

  • roadrunner
  • · Replies 5 ·
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5

Solving for Smallest Value: Completing the Square for x and y

  • Hypochondriac
  • · Replies 4 ·
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4

Alternate ways to show a line is a tangent to a curve

  • rock.freak667
  • · Replies 4 ·
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4

Matrix Invariance: T:X->Y Explained

  • indigojoker
  • · Replies 1 ·
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1

Permutations/combinations with Braille dots

  • roadrunner
  • · Replies 3 ·
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3

How Do You Calculate Log Base 2 on a Scientific Calculator?

  • starchild75
  • · Replies 5 ·
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5

Help do this simple simple question

  • rock.freak667
  • · Replies 5 ·
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5

Minimum Score on 4th Test for 80 Average in Linear Algebra Course

  • Canadian
  • · Replies 5 ·
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5

Find h⁻¹(x): Expression for x in terms of y

  • nirvana1990
  • · Replies 11 ·
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11

Tuna or a Kingfish probability

  • danago
  • · Replies 3 ·
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3

Bernoulli, Poisson &amp; Normal Probability

  • t_n_p
  • · Replies 10 ·
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10

Find the Slope of the Secant Line PQ for x-values .5 to 1.001

  • Destrio
  • · Replies 4 ·
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4

Calculating Magnitude and Direction Cosines of a Vector in Physics

  • tdusffx
  • · Replies 8 ·
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8

Find angle between vectors with cosine law

  • drillman9
  • · Replies 2 ·
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2

Solving Surds: A Level Maths Struggles

  • RMHAZARD
  • · Replies 5 ·
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5

Average Rate of Change (word problem)

  • xCanx
  • · Replies 5 ·
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5

Is the Provided Solution Correct for the Partial Fractions Decomposition?

  • Hypochondriac
  • · Replies 3 ·
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3

How do I represent this relationship

  • frasifrasi
  • · Replies 4 ·
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4

Proving the Theorem If m divides n, then m <= n Using Different Methods

  • SurferStrobe
  • · Replies 5 ·
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5

Finding the Center and Radius of a Sphere in R^3

  • RyanSchw
  • · Replies 8 ·
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8

SHOW: x(at) is a periodic signal with period T/a (a>0)

  • VinnyCee
  • · Replies 3 ·
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3
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4

What is the Equation for a Set of Points with a Geometric Description?

  • physstudent1
  • · Replies 22 ·
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22
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1

Interesting probability question

  • t_n_p
  • · Replies 10 ·
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10

Solving for x in 10 (1-cos^2 x) = 1 - 3 sinx

  • Cugglebear
  • · Replies 1 ·
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1

Least distance from a point to a parabola

  • Sleek
  • · Replies 3 ·
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3

How do I determine the class size for creating a histogram in statistics?

  • Saladsamurai
  • · Replies 1 ·
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1

Understanding Simple Trig Questions: sin(pi)/2 and 1/(1-cos(2*pi)) Explained

  • 3.141592654
  • · Replies 2 ·
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2

Variable Homework: Solving for m1 in Gm1m2/r^2

  • honphysics12
  • · Replies 5 ·
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5

Convergence of Infinite Series

  • Vagrant
  • · Replies 3 ·
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3

Equation of Circle Homework: Find Length of Radius & Equation

  • atavistic
  • · Replies 2 ·
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2

Calculating moments in MS Excel

  • loom91
  • · Replies 1 ·
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1

Locating Position of Point P(x,y): Lines, Quadrilaterals & Triangles

  • atavistic
  • · Replies 4 ·
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4

Discrete Mathematics - Problems with Languages

  • prevail
  • · Replies 2 ·
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2

Solving large #s raised to a large # with the mod function

  • Fresh4Christ
  • · Replies 1 ·
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1

Comparing industrailized countries vs. less-developed

  • six789
  • · Replies 1 ·
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1

A quick question on Spearman's rank correlation coefficient

  • Just some guy
  • · Replies 1 ·
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1

What is the absolute value of the t statistic for the one-sided test?

  • student007
  • · Replies 1 ·
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1

Proving Symmetry of (A)(A^T) Matrix w/ Tensor Notation

  • neelakash
  • · Replies 1 ·
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1
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1

Statistics 101 problem. Using confidence values and z scores?

  • famtrecrew
  • · Replies 1 ·
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1

How Is the Number of Tennis Sets Distributed in a Match?

  • Benny
  • · Replies 1 ·
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1

Solving Chi-Square Method w/ Poisson Distribution

  • Erikve
  • · Replies 1 ·
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1

How do I solve the equation cos^2(x) - 4*cos(x) + (7 / 4 ) < 0?

  • JPC
  • · Replies 5 ·
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5
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8

Rank of a Matrix and Solving Linear Equations with Vectors

  • rock.freak667
  • · Replies 9 ·
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9