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

Need an formula/equation for this scenario

  • gwanun
  • · Replies 1 ·
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1

Can Every Integer Be Expressed as a Sum of Cubes?

  • Noo
  • · Replies 10 ·
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10

Solving (sin 2θ) tan²θ - tan θ + (sin 2θ)/2 = 0

  • Ed Aboud
  • · Replies 11 ·
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11

Combinatorics of the word RAKSH

  • ritwik06
  • · Replies 5 ·
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5

Solve Easy Math Problem: Remainder of 6x7^32 + 17x9^45 Divided By 5

  • dgentile
  • · Replies 1 ·
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1

How Does Caffeine Decrease in Your Bloodstream Over Time?

  • HelloMotto
  • · Replies 1 ·
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1

Solving tan²a = sin(2a) for a

  • ruthless
  • · Replies 7 ·
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7

Proving 3 Divides at Least One Integer

  • dgentile
  • · Replies 4 ·
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4
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1

How do I simplify function composition with fractions within fractions?

  • schlynn
  • · Replies 3 ·
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3

Prove Integer Expression: a(a^2 + a)/3 is an Integer

  • Ed Aboud
  • · Replies 5 ·
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5

Partial fractions without complex numbers for Laplace transforms

  • Nubcakes
  • · Replies 5 ·
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5

How to simplify f(E)q(-E) + f(-E)q(E) with variable substitution

  • koolmodee
  • · Replies 2 ·
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2

Radius of a Circle: Solving Negative Equations

  • chemic_23
  • · Replies 1 ·
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1

Find a sequence convering to sqrt(2)

  • kidsmoker
  • · Replies 2 ·
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2

Symmetric functions/odd even or neither

  • schlynn
  • · Replies 2 ·
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2

Making converses of number theory conjectures

  • choob
  • · Replies 7 ·
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7

Solving log(3-x) + log(3+x) = log(5)

  • Lancelot59
  • · Replies 13 ·
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13

Locus of Z for Z^2= (1+z)/(1-z) when |z|=1

  • Mentallic
  • · Replies 17 ·
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17

Can You Solve These Easy Algebra Problems?

  • SystemaNoob1
  • · Replies 6 ·
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6

Solving Probability Question: Coffee Dispensed in ML per Cup

  • thomas49th
  • · Replies 1 ·
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1

Solve Trig Identities: Match Function to Answer

  • Cephalopod
  • · Replies 2 ·
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2

Discrete mathematics (PMI, composition, onto)

  • Firestrider
  • · Replies 4 ·
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4

What is the formula for standard deviation?

  • experimental
  • · Replies 3 ·
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3

Locus of Midpoints of Chords in Circle x^2+y^2-2y-3=0

  • Mentallic
  • · Replies 4 ·
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4

Solving Limits that can't be rationalized (i think)

  • hoaver
  • · Replies 13 ·
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13

Easy Proportion, but not for me

  • SystemaNoob1
  • · Replies 3 ·
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3
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6

Simplify the following problem with exponents

  • TayTayDatDude
  • · Replies 13 ·
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13

Find Polynomial Roots: x^4+2x^3-8x^2-18x-9=0

  • Mentallic
  • · Replies 5 ·
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5

Finding Positive Roots for 2x3-12x2-3x+36=0

  • AdamNailor
  • · Replies 3 ·
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3

Finding the Locus of z for R: A Real Number

  • Mentallic
  • · Replies 2 ·
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2

Find remainder and value of a in polynomial division

  • Mentallic
  • · Replies 2 ·
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2

Finding coefficients a and b using polynomial factors and derivatives

  • Mentallic
  • · Replies 3 ·
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3
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2

Solving Pool Filling Problem with Jim, Sue and Tony

  • psmarz
  • · Replies 18 ·
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18

Edu - "How to Find Eigenvectors of a Matrix

  • roam
  • · Replies 3 ·
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3

Why is sqr(-4) not a real number again?

  • alpha372
  • · Replies 18 ·
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18

Finding inverse trigonometric values and shadow length

  • doodlebug003
  • · Replies 3 ·
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3

Isolating y in Equation: y^2 + 2y = -2x +2

  • ACE_99
  • · Replies 2 ·
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2

Can I Cancel Cubed Radicals with Division?

  • Mike_Winegar
  • · Replies 4 ·
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4

The period of the function f(x) = sinx * cosx is T = 2п.

  • Дьявол
  • · Replies 18 ·
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18

How do you determine if a number is rational or irrational?

  • temaire
  • · Replies 13 ·
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13

Does the series sum of n^n/(n+1)^(n+1) converge or diverge?

  • kidsmoker
  • · Replies 7 ·
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7

Finding the Locus of Z for |z|=1

  • Mentallic
  • · Replies 29 ·
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29

Marianne borrowed $10,000 from three sources at different rates

  • amd123
  • · Replies 2 ·
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2

Domain and range of exponential and logarithmic functions

  • austin1250
  • · Replies 1 ·
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1

Maybe stupid question - zero positive or negative ?

  • JPC
  • · Replies 8 ·
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8

Finding the center and radius of circles given an equation

  • Jim4592
  • · Replies 4 ·
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4

Basic Mathematical Induction w/ n In the Exponent

  • DDNow
  • · Replies 4 ·
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4

Unsolvable limit of trigonometric function

  • cuthecheese
  • · Replies 3 ·
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3

Unable to understnd the question

  • archita
  • · Replies 4 ·
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4
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1

2 story problems for algebra 2/trig

  • shemer77
  • · Replies 6 ·
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6

Can Euler's formula accurately calculate arcsine?

  • Marie Cury
  • · Replies 4 ·
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4

Stats, to simplify the expression

  • yamuna
  • · Replies 4 ·
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4

How do I solve a quadratic trigonometric equation with unusual terms?

  • db1uover
  • · Replies 2 ·
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2

What mistakes were made in solving for the equation of the ellipse?

  • louie3006
  • · Replies 2 ·
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2

Find the focus and directrix of the parabola

  • louie3006
  • · Replies 4 ·
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4

Probability Involving Combinations of Classroom Seating

  • v_bledsoe
  • · Replies 1 ·
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1

Solving for all values of x including imaginary numbers

  • shemer77
  • · Replies 6 ·
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6

[prove] monotonicity of function

  • Дьявол
  • · Replies 5 ·
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5

How to solve homework equations

  • chemic_23
  • · Replies 4 ·
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4

How do i find the basis of subspace U

  • subopolois
  • · Replies 2 ·
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2

Calculating Doubling Time of Bacteria in Beaker

  • stegz
  • · Replies 2 ·
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2

What Is the First Step in Writing the General Form of a Conic Section?

  • lucifer_x
  • · Replies 2 ·
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2

Using radicals in trig, and their conversions

  • moe11
  • · Replies 10 ·
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10

Checking hyperbola homework

  • chemic_23
  • · Replies 2 ·
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2

What makes a set well-defined and why does it matter?

  • Kristinanne
  • · Replies 1 ·
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1
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4

Binomial experiment for 10C5(0.2)^5(0.8)^5

  • yamuna
  • · Replies 1 ·
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1

Express Trigonometric Identities of Terms of Variables

  • TheShehanigan
  • · Replies 2 ·
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2

Rod on verge of tilting: finding particle position using moments

  • tweety1234
  • · Replies 8 ·
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8

Expected Time for Miner to Reach Safety: A Probability Question

  • toni
  • · Replies 9 ·
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9

Solve Logarithm: Find n if P=76%, k=-5668, P=2^{-kn}

  • icystrike
  • · Replies 4 ·
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4

Messing up my algebra seriously i need to re-learn my algebra

  • camboguy
  • · Replies 2 ·
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2

Bit foggy on this trig question

  • yoleven
  • · Replies 4 ·
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4

Properties of Logs: What is the Relationship Between ln(x) and ex?

  • icystrike
  • · Replies 22 ·
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22

Probability that exactly one of two random draw winners is an adult

  • icystrike
  • · Replies 3 ·
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3

How do i determine if U is a subspace of R3

  • subopolois
  • · Replies 8 ·
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8

Triangle ABC with A=50°, b=15, c=11 gives two solutions

  • asura
  • · Replies 8 ·
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8

Probability and statistics material too easy for distance learning

  • Gr!dl0cK
  • · Replies 3 ·
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3
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5

Function Problem: Area of Rectangle with 100ft Perimeter

  • Arreat
  • · Replies 2 ·
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2

Proving Logarithm Equations: 1/log3a + 1/log4a = 1/log12a

  • ElementUser
  • · Replies 2 ·
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2

Finding Value of k for Tangent to y=\frac{3x}{\sqrt{1+x}} at x=3

  • icystrike
  • · Replies 1 ·
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1

Radius and coord of center of a circle

  • lucifer_x
  • · Replies 6 ·
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6

Finding A, B, C, D in tide depth model d = A + B cos(Ct + D)

  • Paulo2014
  • · Replies 1 ·
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1

Find all real values of k for which A is diagonalizable

  • war485
  • · Replies 4 ·
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4

Vectors Question (Orthogonality)

  • haux
  • · Replies 1 ·
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1

Can the Alternating Series Test Determine Divergence?

  • kidsmoker
  • · Replies 2 ·
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2

Sin t = a+b, cos t = a-b, find tan t

  • icystrike
  • · Replies 1 ·
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1

Proving angle ABC is congruent to angle DEF from given angle pairs

  • ccmath
  • · Replies 1 ·
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1

Simplifying 6j - 5j² × √-63 with complex numbers

  • POLISH_Soldier
  • · Replies 3 ·
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3

What Does the Area Under a Position vs. Time Graph Represent?

  • Rock32
  • · Replies 1 ·
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1

Find perpendicular vectors and angles

  • thomas49th
  • · Replies 5 ·
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5
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3

Finding the Value of a in a Complex Number Equation

  • thomas49th
  • · Replies 11 ·
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11

Solving Second Order Differential Equations with Constant Coefficients

  • thomas49th
  • · Replies 12 ·
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12

Find cos(arcsin u + arccos v)

  • JoshB645
  • · Replies 3 ·
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3