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

If it takes 17 seconds to blow up a balloon to 8 cm in diameter

  • some_letters
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Maximum distance a rabbit can venture if a fox runs twice as fast

  • some_letters
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4

Do you know what nC5 and nC4 represent?

  • dancing_math
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1

Negative Fractional Exponent problem

  • jdoyle
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3

How many bounces does it take for a ball to travel 1854.94320091 feet?

  • darshanpatel
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11

Decomposing Functions: Finding the Pattern

  • Bashyboy
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5

Rotation of Axes showing parabola

  • indio1
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3

Geometry: Finding The Representation For An Angle

  • Bashyboy
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5

Argument formula for z = i(1+is)/(1-is) with real parameter s

  • EdMel
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2
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9

Shouldn't these 2 equations be equal?

  • tamtam402
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2
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8

Understanding Phase Shift in Trigonometric Functions

  • smashbrohamme
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3

How can the square root be eliminated in this algebraic manipulation problem?

  • Nano-Passion
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13

Probability: Red ball being transfefred from bag m to n?

  • mirandab17
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8

Probability it came from Bag A

  • mirandab17
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2

Solving a Tricky Calculus Equation: 24 = 10(ex/20 + e-x/20)

  • Larsani
  • · Replies 5 ·
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5

Geometry Area of sections of a parallelogram

  • Wildcat
  • · Replies 4 ·
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4

Bayes Theorem for coins problem

  • Adyssa
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1

Solving a Rational exponent(simplify)

  • DPXJube
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4

Solving e^x and y for x & y: Why is it Wrong?

  • theBEAST
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3

Algebra II Simplifying Radicals Using Product and Quotient Properties

  • velox_xox
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5

Prove cross-section of elliptic paraboloid is a ellipse

  • chris_usyd
  • · Replies 26 ·
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26

Using power method to calculate dominant eigenvalue and eigenvectors

  • savva
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1

Verifying whether my working is correct in showing Linear Independence

  • savva
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2

Probability Involving AND and OR

  • Derivator
  • · Replies 3 ·
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3

Proving Induction from the Well-Ordering Principle

  • Adonis1
  • · Replies 16 ·
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16

Multiplying Polynomials to Find Values of 'k'

  • AnTiFreeze3
  • · Replies 12 ·
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12

Prove (u+v) x (u-v) = 2v x u (Cross product)

  • ohiggins
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1

Similar triangles with side length 10

  • xzibition8612
  • · Replies 6 ·
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6

Question on Probabilty Percentages

  • taskforce141
  • · Replies 3 ·
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3

Intro Independent Probability Question

  • caljuice
  • · Replies 2 ·
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2

Find radius of bowl at certain height

  • songoku
  • · Replies 2 ·
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2

Distribution in Algebra: Calculating 16(1+h)^2 - 16(1)^2/h

  • robertjford80
  • · Replies 2 ·
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2

Find the equation of cubic polynomial

  • songoku
  • · Replies 7 ·
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7

Problem needing trig identities to find exact value

  • Aaron H.
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4

Relation between coefficients and zeros of a quadratic polynomial

  • physics kiddy
  • · Replies 5 ·
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5

Express a complex number in the certesian form

  • HWU
  • · Replies 1 ·
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1

Spivak's Calculus (4ed) 1.19 Schwarz inequality

  • swevener
  • · Replies 7 ·
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7

Proving V1 is Not a Vector Space

  • hms.tech
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10

How many ways can you choose 3 cards so the total is 15?

  • Natasha1
  • · Replies 16 ·
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16

Verify that the the line lies wholly in the plane.

  • Alshia
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1
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3

Vector Problem finding a certain endpoint.

  • charmedbeauty
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2
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5
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2

Counting problem relatively hard I think.

  • charmedbeauty
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7

What is the formula for finding the altitude of a right triangle?

  • KiwiKid
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9

What is the number and position of real roots of x4+4x3-4x-13=0?

  • Saitama
  • · Replies 22 ·
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22

Probability problem, 10 ball are in an earn.

  • Whitebunny
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3

Binomial theorem problem on the terms of an expansion

  • agnibho
  • · Replies 3 ·
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3

Isolating x when it's an exponent in y = 50(5 - 0.67^x)

  • Hfuais
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2

How do I simplify cubed roots with multiple variables and coefficients?

  • AnTiFreeze3
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2

Finding balcony height from two angles of elevation 100m apart

  • fdajkffk
  • · Replies 12 ·
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12

Calculating credit card debt using a geometric series

  • rosemary1234
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2
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2

Solution related to certain condition in quadratic equation

  • songoku
  • · Replies 27 ·
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27

How do I solve the summation of a sequence for my homework?

  • S.R
  • · Replies 24 ·
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24

Simplifying the Equation for a Circle: r2 = 20 - 4θ + 10θ2

  • Lurid
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1

Some Confusion with an Exponential Equation

  • M83
  • · Replies 7 ·
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7
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4

Why am I getting the wrong angle with the law of sines?

  • USN2ENG
  • · Replies 3 ·
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3

Simplify Radicals: √3 + √2 - √5

  • AnTiFreeze3
  • · Replies 3 ·
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3

Vector proof - four points in space

  • nc01
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2

Solve 5sinx +12cosx=6.5: 0-180 Degrees

  • fan_boy17
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5

Finding the ellipse equation from a vector and two foci

  • Lurid
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1

Rearranging the equation into the following form.

  • Hfuais
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2

What is the Nature of the Solution to x^2 = 1?

  • robertjford80
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3

How do i find the range of this function?

  • jd12345
  • · Replies 4 ·
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4

Geometric Sequences: Find 1st Term Exceeding 500

  • thornluke
  • · Replies 4 ·
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4

What is considered most simple

  • GreenPrint
  • · Replies 7 ·
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7

How can I simplify e^(2n ln sin(pi/3))?

  • tamtam402
  • · Replies 1 ·
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1

Solve 3(6x-1) = 1 + 4/6x for x = a - log6b

  • thornluke
  • · Replies 6 ·
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6

Integers, rationals and divisibility

  • Kartik.
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2

A very formulaic trig word problem (find an angle)

  • solve
  • · Replies 9 ·
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9

Fitting a Gauss curve to lab data

  • sunrah
  • · Replies 8 ·
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8

Using probability paper for a normal distribution

  • sunrah
  • · Replies 1 ·
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1

Solve for 3 variables with 2 equations

  • staples
  • · Replies 21 ·
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21

What is value of integral |x|/x?

  • vkash
  • · Replies 2 ·
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2

Does probability have a specific order in determining outcomes?

  • kenny1999
  • · Replies 5 ·
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5

Finding xy coordinates of obtuse and acute triangle

  • amit25
  • · Replies 1 ·
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1

Finding the cut-out square size for a box with 9 cubic foot volume

  • Lurid
  • · Replies 5 ·
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5

Proving \neg x \vee x in Hilbert System: A Logical Dilemma

  • hamsterman
  • · Replies 4 ·
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4

Big-Oh algebra with logarithms that I don't get?

  • Nishiura_high
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1

Simplify F(s) = X1(m1 s^2 + k) - KX2

  • hamadee
  • · Replies 3 ·
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3

Computing probabilities of specific poker hands with combinations

  • daleklama
  • · Replies 4 ·
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4

Why doesn't repeated 10% increase equal 100e^0.4?

  • robertjford80
  • · Replies 6 ·
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6

Systems of Nonlinear Equations

  • Lurid
  • · Replies 4 ·
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4

Proving inequality by mathematical induction

  • dustbin
  • · Replies 3 ·
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3

Necessary and sufficient condition for equation and inequality

  • songoku
  • · Replies 4 ·
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4

Convert Equation to Linear form of y=mx+c

  • kmmaran
  • · Replies 2 ·
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2

Proving that a limit is non-existent

  • Mathoholic!
  • · Replies 2 ·
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2

Grade 12 Math - Trigonometry Question.

  • lily.123
  • · Replies 7 ·
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7

If tan x = k(where k is a positive constant),How is tan( pie/2 − x)=1/k

  • mutineer123
  • · Replies 13 ·
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13

Using mathematical induction to prove 2^n for higher dimensions

  • PTiger
  • · Replies 3 ·
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3

Point on line1 which is closest to line2

  • ronho1234
  • · Replies 11 ·
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11

Is f(x,y) = x³/(x² + y²) continuous at the origin?

  • Mathoholic!
  • · Replies 4 ·
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4

Why Does the Polynomial Remainder Theorem Yield All Real Numbers for b?

  • thornluke
  • · Replies 3 ·
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3

Calculate Litres of Water Through Pipe in 1 Hour

  • Chapman2233
  • · Replies 3 ·
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3

Number Theory Problem (sums of consecutive squares)

  • evansmiley
  • · Replies 4 ·
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4