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.
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Using Power-of-a-Point Theorem in Geometric Proofs
- theJorge551
- · Replies 6 ·
What is the cross product of two 3D vectors?
- athrun200
- · Replies 9 ·
How many solutions does 10sin(x)=x have?
- Saitama
- · Replies 14 ·
[tex](ax+by)^2 \leq ax^2+by^2[/tex] for every a,b which satisfy
- estro
- · Replies 4 ·
How to Solve Exponential Equations with Different Bases?
- nae99
- · Replies 24 ·
Rectangular fence optimization with different material costs
- QuarkCharmer
- · Replies 2 ·
What is the solution for log equations with a base of 4 and a difference of 3?
- nae99
- · Replies 34 ·
Simplifying 2^3 / 2^0 - 2^-1 with exponent laws
- Nelo
- · Replies 9 ·
Using Ptolemy's Theorem to prove simple (yet unique) cases?
- theJorge551
- · Replies 4 ·
Solving 5^(2x) - 16^x + 3 = 0 with exponential substitution
- nae99
- · Replies 19 ·
Rewriting (2/y^(1/2))-8 with radicals
- Joe_K
- · Replies 3 ·
2log(x-1) + logx = logx + log4
- nae99
- · Replies 33 ·
Why is C(2n,n) always even?
- Mentallic
- · Replies 17 ·
Solving for the Inverse Function of a Quadratic Equation
- frozonecom
- · Replies 3 ·
Problem with expected value (Random Walk)
- { imp }
- · Replies 1 ·
Help with solving compound and rational inequalities
- Curd
- · Replies 18 ·
How to solve a Non-Square Matrix Equation?
- puki
- · Replies 1 ·
Expressing a decimal number in radians in terms of pi in a fraction
- JFonseka
- · Replies 10 ·
Determinants from any row or column
- Fan de Douze
- · Replies 2 ·
Solving cos θ = 1/2 in the range 0° to 360°
- infiniteking1
- · Replies 6 ·
Partial fraction decomposition for .
- itachi8
- · Replies 7 ·
What is the solution to this parabola word problem?
- NurseLaurie
- · Replies 3 ·
Normal distribution problem with package weight specifications
- Maybe_Memorie
- · Replies 9 ·
What Are the Chances of Water Rationing Over a Decade in Southland?
- vipertongn
- · Replies 3 ·
Identifying Triogonometric Identities - ?
- nukeman
- · Replies 6 ·
Finding the absolute value (modulus) and solving equation
- infiniteking1
- · Replies 5 ·
Calculate the confidence interval (Statistics problem)
- RedonYellow
- · Replies 1 ·
Find the X and Y point in the graph
- prasantha60
- · Replies 8 ·
Expectation of a random variable
- Maybe_Memorie
- · Replies 20 ·
Early repayment of a loan compounded daily
- ranileto
- · Replies 1 ·
Calculate the standard deviance (statistics)
- RedonYellow
- · Replies 2 ·
Converting binomial theorem sigma notation to expanded form
- Saitama
- · Replies 69 ·
Simplifying interval unions and intersections
- liquidnail
- · Replies 2 ·
Geometry with polygons formed within drawn stars
- Omega234
- · Replies 1 ·
Match the inequalities with the corresponding statements.
- name_ask17
- · Replies 7 ·
Having Trouble: Solving a Trigonometric Equation using Identities ?
- nukeman
- · Replies 11 ·
Finding the concentration of X
- MagicMarker
- · Replies 1 ·
Set Theory Symbols: Is A ∩ C ⊆ B Equal?
- BloodyFrozen
- · Replies 3 ·
How Many Local Maxima Does F(x) = (sin(Nx)^2)/(sin(x)^2) Have?
- zardiac
- · Replies 3 ·
Word Problem: Finding a Number with -5 and 2 in the Equation
- Cyrilshark
- · Replies 4 ·
Proof concerning infinite sets
- pc2-brazil
- · Replies 5 ·
Phase shift and sinusoidal curve fitting - Finding .
- nukeman
- · Replies 1 ·
Solving for interest rate in a financial equation with exponent 22
- cs23
- · Replies 7 ·
Is Matrix Multiplication Commutative?
- Peter G.
- · Replies 1 ·
Mathematical induction and arithmetic progression
- elitewarr
- · Replies 5 ·
Probability distribution, find constant
- Deathfish
- · Replies 5 ·
Solving |x^2 + 6x + 16| < 8 with absolute value cases
- flyingpig
- · Replies 20 ·
Pythagorean Identities - finding sin and cos ?
- nukeman
- · Replies 9 ·
Solve 2(sin(x))^2+3sin(x)=-1 on [0,2π)
- hcky16
- · Replies 4 ·
Dividing [0, 2π] into 4 subintervals to graph y = -4 sin x
- nukeman
- · Replies 7 ·
What is the remainder when 4101 is divided by 101?
- Saitama
- · Replies 11 ·
Does moment affect the combined vector calculation?
- Femme_physics
- · Replies 5 ·
Calculate Crane Height from Angle Measurement
- Cbray
- · Replies 1 ·
Complex analysis and complex plane
- tsopatsopa
- · Replies 1 ·
Double quadratic equation 4n²+9m²-240n-720m+18000=0
- thereddevils
- · Replies 10 ·
Precal, Inequalities involving absolute value
- name_ask17
- · Replies 2 ·
Prove that 2n ≤ 2^n by induction.
- -Dragoon-
- · Replies 14 ·
How to start with cubic splines interpolation
- Nightmare_69
- · Replies 4 ·
Trig Question: Exact value of
- nukeman
- · Replies 9 ·
Perimeter of a sidewalk around a circular roundabout with 30m width
- Femme_physics
- · Replies 18 ·
Exam problem : solve exponential withh log? This one is killin me
- sixshot8
- · Replies 7 ·
Solving the missing data for this Traverse
- raiderUM
- · Replies 5 ·
Find zeros of quadratic equation
- Torshi
- · Replies 3 ·
What is the solution to (sinx)*(lnx)= 0 over [0, 2pi]?
- name_ask17
- · Replies 2 ·
Evaluating a piecewise function at x = 5
- name_ask17
- · Replies 1 ·
How Do Vectors Solve Real-World Problems?
- JLindsayLj
- · Replies 1 ·
Finding dimensions of a rectangle rotated inside another rectangle
- galneweinhaw
- · Replies 8 ·
Understanding Solutions to Quadratic Inequalities
- name_ask17
- · Replies 9 ·
When to use sin and cos for vector components?
- donniemsb_12
- · Replies 11 ·
Quadratic inequality-interval notation
- Torshi
- · Replies 1 ·
Factor 2e^3x - 5xe^3x and 4lnx - 3ylnx
- name_ask17
- · Replies 2 ·
Trigonometry, find the minimum of tan(a).tan(b).tan(c)
- Michael_Light
- · Replies 10 ·
Reproduce a solution set to a linear system with 2 equations and 8 variables
- Alex1812
- · Replies 5 ·
What is the name of this shape with unequal sides?
- Femme_physics
- · Replies 12 ·
What Is the Significance of the Number 495 in Digit Rearrangement?
- Cbray
- · Replies 3 ·
If xy^2 = ab^2 : Does xy = ab?
- Femme_physics
- · Replies 13 ·
Why do sin, cos, tan, and their reciprocals have different domains?
- name_ask17
- · Replies 5 ·
The probability that a new drug will cure a skin rash is 0.82.
- Mspike6
- · Replies 3 ·
How do I write this interesting piecewise function?
- JosephK
- · Replies 5 ·
Finding limits with conjugate and L'Hôpital's rule
- BloodyFrozen
- · Replies 4 ·
FInding domains of ln problems
- name_ask17
- · Replies 2 ·
Graphical and numerical solutions of equation
- stupif
- · Replies 3 ·
Kinematics problem, ball drop.
- AlchemistK
- · Replies 3 ·
Trig proof with two angles and many functions
- stevensen
- · Replies 2 ·
How Do You Calculate cos(a-b) from Given Sine and Cosine Values?
- Michael_Light
- · Replies 5 ·
Two trigometric functions intersect point
- likeachild
- · Replies 5 ·
Solve for y in 16y2 -24xy -300y +x2 + 400x = 0
- vanmaiden
- · Replies 6 ·
Why does moving sinx and lnx to different sides give different solutions?
- name_ask17
- · Replies 8 ·
When does a polynomial graph cross vs touch the x-axis?
- Buddah
- · Replies 7 ·
Why do sine and cosine have different x intercept patterns?
- mr.me
- · Replies 13 ·
Counting Surjective Maps from a Finite Set to Itself
- battousai
- · Replies 4 ·
Solving sin(x)/sin(x+215) = ab/cd
- tony873004
- · Replies 2 ·
Proving cos(x)² = 1/(1+tan(x)²)
- MatheusMkalo
- · Replies 14 ·
Proving Trig Equation: cosx + cos3x +cos5x = sin6x/2sinx
- es801
- · Replies 4 ·
Show that x is a square expression
- Shawn Garsed
- · Replies 8 ·
Two unknowns in trigonometric calculation?
- Ricaoma
- · Replies 1 ·
Prove cos θ/(1-tan θ) + sin θ/(1-cot θ) = sin θ + cos θ
- blondie1125
- · Replies 2 ·
Showing stability under scaling and additivity of distriubtions
- stukbv
- · Replies 5 ·
Finding the Smallest n for Real z^n in Complex Numbers
- nayfie
- · Replies 3 ·
Creating a list from 0 to 2π in 0.1 radian increments
- GreenPrint
- · Replies 8 ·