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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Finding the angle between two intersecting hallways
- D.Boxer
- · Replies 10 ·
Prove/Disprove: Inverse Function g(x)=x-\frac{1}{x},x>0
- haha1234
- · Replies 3 ·
Algebra and square root simplification
- smart_worker
- · Replies 7 ·
What is the effective interest rate per period for compounding semiannually?
- ainster31
- · Replies 5 ·
Points on a Circle: Find Value of 'a
- Panphobia
- · Replies 3 ·
What Is the Probability of Rolling Neither a Doublet Nor a Sum of 10?
- royalewithchz
- · Replies 6 ·
Why inclusion-exclusion fails for three independent decoders
- royalewithchz
- · Replies 5 ·
How to Prove a Sequence by Induction
- silina01
- · Replies 6 ·
Solving Quadratic Equation with Solutions x1 and x2: How to Calculate x1-3+x2-3?
- Matejxx1
- · Replies 6 ·
Finding p so (x² - x + p)(11y² - 4y + 2) = 9/2 has one solution
- utkarshakash
- · Replies 13 ·
Few propositional logic questions
- Panphobia
- · Replies 7 ·
Right inverse, left inverse, binary operations
- Panphobia
- · Replies 11 ·
Proving x=y when x^n=y^n for odd n
- Antonio94
- · Replies 3 ·
Prove x^4+x^3y+x^2y^2+xy^3+y^4 > 0 when x,y aren't both zero
- silina01
- · Replies 19 ·
Functions and Relations: Solving for f, g, and h
- nae99
- · Replies 2 ·
Percentage Error of Equilateral Triangle Perimeter
- chomool
- · Replies 4 ·
Why does sin(2x)=0.98 give 50 degrees as a second solution?
- xtrubambinoxpr
- · Replies 17 ·
Changing complex numbers in form a+bi
- ME_student
- · Replies 13 ·
Proving trigonometric identities in converse
- sooyong94
- · Replies 8 ·
What is the determinant of a 3x3 matrix?
- Panphobia
- · Replies 8 ·
Solving for x: Simple Algebraic Equation with Square Roots
- VictoriaV
- · Replies 4 ·
Determine Union of Sets Belonging to Interval
- knowLittle
- · Replies 3 ·
System of linear equations with fractions
- Chase
- · Replies 6 ·
Number of matrices having unique solution
- utkarshakash
- · Replies 4 ·
Using de Moivre's theorem to solve t³ - 3t² - 3t + 1 = 0
- sooyong94
- · Replies 33 ·
What is the Correct Value of X in the Histogram Study?
- shadowboy13
- · Replies 2 ·
The product of a vector and the length of a polar coordinate
- catsonmars
- · Replies 3 ·
How Do I Solve Linear Equations with Variables and Coefficients?
- I'm_Learning
- · Replies 36 ·
Solving System of Linear Equations: x_2 Free Variable?
- Panphobia
- · Replies 5 ·
Demonstration for Re(z), Im(z), Abs(z) and Arg(z)
- Jhenrique
- · Replies 7 ·
Is a square root function an exponential function?
- jdawg
- · Replies 9 ·
How many 5-digit numbers from digits 1,2,2,3,3,4,5,6,6,6,0?
- member 428835
- · Replies 3 ·
How Many Ways Can 11 People Be Seated at Two Round Tables?
- member 428835
- · Replies 7 ·
Simple conditional probability problem
- theBEAST
- · Replies 1 ·
Geometric series involving logarithms
- sooyong94
- · Replies 7 ·
Converting x+y+2z-3=2x+3y+4z-4=0 to standard form
- utkarshakash
- · Replies 8 ·
Graphing when section order causes different pass/fail outcomes
- jlittle13
- · Replies 9 ·
Conditional probability question. Can someone check my work?
- wahaj
- · Replies 7 ·
How Many Panels Need to Be Lifted for Security Cable Installation?
- AlfieD
- · Replies 11 ·
How Do You Sum a Series Using Sigma Notation and Identities?
- Liquidxlax
- · Replies 3 ·
Problem about relationships between interest factors
- s3a
- · Replies 4 ·
How can I find the rules for deriving a complex number without a complex root?
- bobie
- · Replies 30 ·
Finding fractions of water after pouring between glasses
- Natasha1
- · Replies 8 ·
Sequence of 3/4^(2k). Show is convergent, find sum
- 939
- · Replies 2 ·
What are the constants in the binomial series expansion for (1+mx)^-n?
- sooyong94
- · Replies 34 ·
How can ln be used to solve a sum to infinity problem?
- lionely
- · Replies 12 ·
Proving the Statement: (1+u^2)^2+(1+u)^2>0
- LagrangeEuler
- · Replies 6 ·
What Is the Probability of Hearing Counting Stars During a 30-Minute Drive?
- mjordan2nd
- · Replies 3 ·
Proving recurrence for power sums of polynomial roots
- ben9703
- · Replies 4 ·
Prove that the sum 1/1! + (1+2)/2! + (1+2+2²)/3! + ... equals e² - e
- lionely
- · Replies 23 ·
What does A^c notation represent in matrix theory?
- utkarshakash
- · Replies 7 ·
How Does a Drunk's Random Walk Between Lamp Posts Model a Binomial Distribution?
- CAF123
- · Replies 7 ·
Why does 2x-1/1-2x equal -1?
- xsgx
- · Replies 5 ·
How to write proofs when solving absolute value equations for set theory
- Panphobia
- · Replies 2 ·
Simple probability question on combinatorics
- kougou
- · Replies 1 ·
What is the solution to the infinite series involving factorials and pi?
- lionely
- · Replies 9 ·
What is the solution to finding d(x) without using trigonometry?
- 1MileCrash
- · Replies 2 ·
Poisson vs Binomial approaches yield different results
- DocZaius
- · Replies 2 ·
Is the median from a cumulative frequency graph accurate?
- adjacent
- · Replies 2 ·
Cancelling the Signs in Algebra
- adjacent
- · Replies 2 ·
Is the Point (-1/2, -2) Equidistant from Two Perpendicular Lines?
- Dumbledore211
- · Replies 7 ·
Finding A1/B1 for perpendicular lines in terms of A2 and B2
- eXmag
- · Replies 3 ·
Effect of matrix transformation on area and orientation
- 12base
- · Replies 1 ·
Finding the nth term and sum of the series 12, 23, 60, 169, 494
- hav0c
- · Replies 1 ·
Graph {(x, y) ∈ R+² : X ≥ X’ >0, Y ≥ Y’ > 0}
- 939
- · Replies 4 ·
What is a number raised to an imaginary power?
- Radarithm
- · Replies 2 ·
How to quickly check if a number is in sequence A109598
- tuttlerice
- · Replies 12 ·
Geometric Sequence (Only 4 terms and their sums are given)
- CrimsonKnight
- · Replies 5 ·
Set Theory: Is {a} a Subset of {S}?
- Panphobia
- · Replies 2 ·
Factorising S² + 6S + 13 to find A and B
- anthonyk2013
- · Replies 27 ·
Sin theta= sin theta tan theta
- Coco12
- · Replies 3 ·
Proving y= 10^x Using Logarithms to Base e
- lionely
- · Replies 6 ·
Solving "What Matrix is This?" MCQ
- JonNash
- · Replies 2 ·
Correct my simple error (property of scalar multiplication)
- iScience
- · Replies 4 ·
Solving equations with exponentials and polynomial terms
- uml
- · Replies 5 ·
Proof of ax=a: A Simple Proposition in Spivak's Calculus
- chemistry1
- · Replies 3 ·
Perpendicular distance problem
- Dumbledore211
- · Replies 2 ·
Finding a and b in cos⁶(x)+sin⁶(x)+a(cos⁴(x)+sin⁴(x))+b=0
- subzero0137
- · Replies 5 ·
Probability involving a three card hand.
- Monstrous Math
- · Replies 5 ·
Summation of 1/f(x) where f(x)=√x+√(x+1) from 1 to 24
- sooyong94
- · Replies 4 ·
Algebra basic equations. r-2[1-3(2r+4)] = 61
- Hierophant
- · Replies 1 ·
Solving for y in an equation with exponential and linear terms
- examorph
- · Replies 3 ·
Factoring 2^15 - 1 and finding a divisor of 2^32767 - 1
- Hivoyer
- · Replies 2 ·
Inertial forces, relative strength, basic q.
- pepsimaxisgood
- · Replies 1 ·
How Do You Derive the Common Ratio in a Geometric Series?
- sooyong94
- · Replies 12 ·
Why does the average equal the midpoint between two numbers?
- adjacent
- · Replies 9 ·
Limit of a function with a radical in numerator
- Tyrannosaurus_
- · Replies 2 ·
What is the value of M when |x|≤ 3 in the inequality (x^2+2x+1)/(x^2+3) ≤ M?
- altwiz
- · Replies 4 ·
Why is 73√30+93 the standard form instead of 93+73√30?
- Illuvitar
- · Replies 5 ·
Solving for x in Equation (1375sin(x)+794cos(x)=1500)
- Xenix
- · Replies 4 ·
Confidence Interval Calculation
- MMCS
- · Replies 3 ·
Solving |x²-5|=4|x|
- MSG100
- · Replies 18 ·
Solving "tanθ + cotθ = 2": Is it Wrong?
- BOAS
- · Replies 8 ·
Determine domain for a trig ratio and the general solution of angle me
- Coco12
- · Replies 11 ·
How to Find the Interval of Convergence for this Series?
- alnix
- · Replies 4 ·
Why is my computer giving different answers for logarithmic laws?
- alingy1
- · Replies 3 ·
Complex roots of a quartic polynomial
- subzero0137
- · Replies 7 ·
Proof by contradiction for simple inequality
- tomwilliam2
- · Replies 6 ·
Validity of proof that e is irrational using series decomposition
- Calu
- · Replies 7 ·
How can I simplify finding positive odd solutions to the equation 17x+11y=1000?
- MSG100
- · Replies 2 ·