Precalculus Mathematics Homework Help Forum

Post thread
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.
A Series of Even numbers squared
  • · Replies 2 ·
Replies
2
Views
2K
Probability of Independent Sets: A,B in Sample Space Z
  • · Replies 5 ·
Replies
5
Views
2K
How can I simplify this expression using index laws?
  • · Replies 7 ·
Replies
7
Views
2K
Can You Solve 0.221=sinθcosθ for θ Without a Calculator?
  • · Replies 1 ·
Replies
1
Views
2K
Random oceanography related mathematics
  • · Replies 4 ·
Replies
4
Views
2K
Solving a Quadratic Equation with Unknown X Coefficient: Homework Help
  • · Replies 9 ·
Replies
9
Views
2K
Trig, find tan A and tan B (no numbers given)
  • · Replies 5 ·
Replies
5
Views
2K
How do I solve goniometric inequations with cosine and tangent?
  • · Replies 6 ·
Replies
6
Views
2K
Is the Probability of Getting an Even Number of Heads 1/2 After 491 Coin Tosses?
  • · Replies 1 ·
Replies
1
Views
2K
How can I solve this Trigonometry equation in RxR?
  • · Replies 1 ·
Replies
1
Views
2K
Algebra problem using graphing calc
  • · Replies 11 ·
Replies
11
Views
3K
Find the missing length (trig)
  • · Replies 6 ·
Replies
6
Views
2K
Fermat's Last Theorem related question
  • · Replies 3 ·
Replies
3
Views
2K
Exponential growth word problem, pie.
  • · Replies 7 ·
Replies
7
Views
4K
Discrete math:Placing beads on a necklace
  • · Replies 4 ·
Replies
4
Views
2K
Isolating a variable in an exponent
  • · Replies 15 ·
Replies
15
Views
4K
Scatter plot, equation of exponential function
  • · Replies 8 ·
Replies
8
Views
4K
Algebraic conversion of LHS to RHS equation
  • · Replies 3 ·
Replies
3
Views
3K
Transformations of y = ab^k(x-4) + c
  • · Replies 3 ·
Replies
3
Views
2K
Vector Projections: A, B & C Explained
  • · Replies 10 ·
Replies
10
Views
6K
Simple formula for an exponential function. Please help i'm stuck
  • · Replies 28 ·
Replies
28
Views
4K
How do you simplify trig identities with cosθ + sinθ = √2 cos(θ-∏/4)?
  • · Replies 6 ·
Replies
6
Views
2K
Solve Logarithm Equations Using Log and Exponential Functions | Homework Help
  • · Replies 17 ·
Replies
17
Views
3K
Logorithm/Exponential bacteria growth? Quick yes or no question.
  • · Replies 8 ·
Replies
8
Views
2K
Comparing weighted means in two sets of data
  • · Replies 1 ·
Replies
1
Views
4K
Statistical Problem dealning with Probability
  • · Replies 8 ·
Replies
8
Views
3K
Convert Radians to Seconds - Solve f(t)=Rsin(ωt + θ)
  • · Replies 8 ·
Replies
8
Views
3K
Number Theory Problem: Finding an Integer n for 1+2+3+...+n to End in 13
  • · Replies 11 ·
Replies
11
Views
2K
Solving algebraic inequalities
  • · Replies 2 ·
Replies
2
Views
2K
Separating e^(xi) to form a-bi
  • · Replies 3 ·
Replies
3
Views
2K
How Do You Combine 3sin(ωt) and 2cos(ωt) into a Single Trigonometric Function?
  • · Replies 4 ·
Replies
4
Views
2K
Centre of a circle & complex numbers
  • · Replies 1 ·
Replies
1
Views
2K
Help with Trig Functions - min/max values and least + values of x
  • · Replies 7 ·
Replies
7
Views
8K
For Statics:Simple Systems of Equations to Solve Equilibrium Problems
  • · Replies 6 ·
Replies
6
Views
7K
Quadratic Equations: Homework on Non-Real Roots
  • · Replies 5 ·
Replies
5
Views
3K
How long will it take to sail across the bay to the harbor?
  • · Replies 6 ·
Replies
6
Views
2K
P-value Calculation for Water Filter Defect Experiment
  • · Replies 11 ·
Replies
11
Views
3K
Proving the Solution to a Recurrence Relation Using Mathematical Induction
  • · Replies 13 ·
Replies
13
Views
3K
How Do You Calculate the Mean and Its Standard Deviation in Error Analysis?
  • · Replies 1 ·
Replies
1
Views
2K
Proove that e^x is always positive
  • · Replies 9 ·
Replies
9
Views
15K
Find # Sequences for Increasing Sequence Problem
  • · Replies 6 ·
Replies
6
Views
2K
Help Evaluating Complex Numbers
  • · Replies 5 ·
Replies
5
Views
2K
Simple Question Regarding Quadratic Equations (pre-calc)
  • · Replies 4 ·
Replies
4
Views
2K
Prove that sequence is monotonic
  • · Replies 3 ·
Replies
3
Views
3K
Solving the Mystery of sinh(-3) ≥ -3 or sinh(-3) ≤ -3?
  • · Replies 2 ·
Replies
2
Views
1K
Explicit Formula for Onto/Non-One-to-One Function
  • · Replies 6 ·
Replies
6
Views
2K
Among the following sets, identify all pairs of equal sets?
  • · Replies 3 ·
Replies
3
Views
2K
Probabilty of one tail followed by three heads with a biased coin
  • · Replies 4 ·
Replies
4
Views
2K
Want to solve a quadratic equation
  • · Replies 21 ·
Replies
21
Views
3K
Binomial probability with TI-84 binomcdf function
  • · Replies 2 ·
Replies
2
Views
2K
Stats-crv-exponential distribution
  • · Replies 1 ·
Replies
1
Views
2K
How Do I Find the Y-int of a Curved Waveform?
  • · Replies 5 ·
Replies
5
Views
2K
Calculating Vectors: A, B, and C
  • · Replies 2 ·
Replies
2
Views
2K
Boolean algebra: Logical equivalence
  • · Replies 1 ·
Replies
1
Views
2K
Equation with logarithmic and polynomial terms
  • · Replies 6 ·
Replies
6
Views
3K
Multiplication Rule in Probability
  • · Replies 4 ·
Replies
4
Views
2K
Summation of Series Homework: Find Sn
  • · Replies 6 ·
Replies
6
Views
2K
One 3rd degree equation with two variables. Can it be a solution?
  • · Replies 3 ·
Replies
3
Views
2K
How Accurate is a Medical Test for Gingivitis?
  • · Replies 10 ·
Replies
10
Views
3K
Least Squares Method- What is the Measured mean value of y ?
  • · Replies 25 ·
Replies
25
Views
9K
Proof regarding distances from a point in a grid
  • · Replies 3 ·
Replies
3
Views
2K
What is the Correct Way to Determine Percentages from Ratios?
  • · Replies 3 ·
Replies
3
Views
3K
Matrix and inverse matrix question?
  • · Replies 3 ·
Replies
3
Views
2K
Symmetry of a graph. SymmT(A)?
  • · Replies 6 ·
Replies
6
Views
2K
Algebra step confusion and unnatural completing the square
  • · Replies 7 ·
Replies
7
Views
3K
How many ways can you arrange the letters from 'GREEN' with at least one 'E'?
  • · Replies 3 ·
Replies
3
Views
2K
What is the connection between sine and cosine and geometry?
  • · Replies 4 ·
Replies
4
Views
3K
Solving for the Height of a Rectangular Hyperbola
  • · Replies 3 ·
Replies
3
Views
3K
Presumably simple logarithm equationt
  • · Replies 1 ·
Replies
1
Views
2K
Logarithm Inequality: Solving 3(1-3^x) < 5^x(1-3^x)
  • · Replies 1 ·
Replies
1
Views
2K
Confusing Algebra based question
  • · Replies 10 ·
Replies
10
Views
7K
Solve Logarithm Equation: 3x + 3x+1 = 4x
  • · Replies 8 ·
Replies
8
Views
2K
Probability Question - colored balls in 2 bowls - Baye's formula?
  • · Replies 7 ·
Replies
7
Views
3K
Complex Numbers: Solutions for z^n=a+bi , where |a+bi|= 1.
  • · Replies 12 ·
Replies
12
Views
6K
Probability Question - using the combinations counting form C(n,k)
  • · Replies 6 ·
Replies
6
Views
2K
Probability Q: Show A & B Independent
  • · Replies 5 ·
Replies
5
Views
2K
What is the probability of exactly one tall student out of two students?
  • · Replies 4 ·
Replies
4
Views
2K
I can't understand this linear equation at all
  • · Replies 5 ·
Replies
5
Views
2K
Probability Question - Prove Formula
  • · Replies 1 ·
Replies
1
Views
1K
Markov Chains and absorption probabilites
  • · Replies 3 ·
Replies
3
Views
2K
Simple relationship equation major headache
  • · Replies 2 ·
Replies
2
Views
2K
Break even on cell phone plans
  • · Replies 1 ·
Replies
1
Views
3K
Combinations Question ; I must be missing something
  • · Replies 2 ·
Replies
2
Views
2K
Conditional Probability Question
  • · Replies 6 ·
Replies
6
Views
2K
Sketching {(x,y)∈R^2:(y-x)(y+x)=0}: Understanding Negative Values in R^2
  • · Replies 2 ·
Replies
2
Views
2K
Rational Completeing the Square
  • · Replies 3 ·
Replies
3
Views
2K
Having a problem with inverse proportion
  • · Replies 3 ·
Replies
3
Views
2K
Cross Product of a Constant Vector
  • · Replies 3 ·
Replies
3
Views
15K
Finding the Capacity of a Jug Using Basic Algebra
  • · Replies 6 ·
Replies
6
Views
3K
Is Your Vector Part of the Matrix's Solution Space?
  • · Replies 1 ·
Replies
1
Views
2K
Deriving addition of sines from Euler's formula
  • · Replies 1 ·
Replies
1
Views
2K
Probability of Getting Blue M&M from Mini Bag of 20
  • · Replies 7 ·
Replies
7
Views
3K
What is the correct expression for \vec{OP}?
  • · Replies 4 ·
Replies
4
Views
2K
Setting up an inequality with absolute value
  • · Replies 7 ·
Replies
7
Views
2K
Basic set theory question about complement
  • · Replies 1 ·
Replies
1
Views
3K
Solving Odd Digit Divisibility by Five using Permutations
  • · Replies 8 ·
Replies
8
Views
2K
Max Value of a_n: Find n for Maximum Value
  • · Replies 29 ·
Replies
29
Views
3K
Solving for a fixed point on an interval
  • · Replies 13 ·
Replies
13
Views
6K
Is the Addition of These Three Binary Numbers Correct?
  • · Replies 7 ·
Replies
7
Views
2K
Finding the Value of m in a Complex Number Equation
  • · Replies 4 ·
Replies
4
Views
2K