Precalculus Mathematics Homework Help Forum

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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.
Two roads meeting a river at different angles (heights and distances)
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Why is this result different? (calculating the sides of a triangle)
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6
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1K
Make ##x## the subject of the formula
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15
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916
Find the Area of the shaded region in the given problem
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1
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882
I don't understand this step in turning this negative into a positive
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6
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895
A formula involving the sum of cosines of the angles of a triangle
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1K
Algorithm problem involving 3 points and 3 lines in the x,y plane
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1K
Simplifying this complicated fraction
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941
Finding the domain of a composite function
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1K
Prove that there are infinitely many primes of the form ## 6k+1 ##?
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12
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2K
How can I simplify 1/cuberoot(2)?
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13
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1K
Geometry: prove that point M is touched by 4 circles
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1K
Justifying Equilateral Triangle AEF in ABCD
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Exploring Equation of a Straight Line in 3D Space
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Solving a⁻¹ - b⁻¹ = b - a /(ab)
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Calculating Left Hand Limit: ##\sqrt 6##
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1K
Find an equivalent equation involving trig functions
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814
MHB Find this unknown angle in the triangle
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25
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What Is the Next Step in Solving This Logarithmic Equation?
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805
Find angle B in the trigonometry problem
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Solve the given trigonometry problem
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7
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Solve the given equation that involves fractional indices
2
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39
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3K
Finding the angle between two vectors
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2
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988
Solving an absolute value quadratic inequality
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9
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1K
How to find z^n of a complex number
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12
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2K
Probability of not getting a prize
2
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36
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3K
What are the implied domain and range of cos(arctan(x))?
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3
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2K
Area of Quadrilateral inside a rectangle
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2
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1K
Are both sample spaces the same or do they mean different things?
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5
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1K
Geometry problem with arcs in a triangle
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16
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1K
Writing a logarithm in a form not involving logarithms
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4
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1K
Solve the given vector problem
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1
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848
Understanding Negative Velocity and Displacement on a Velocity-Time Graph
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7
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816
Quadratic inequalities with absolute values
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1K
Triangle formed by straight lines
2
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43
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3K
Need Aid On This Problem Set (Combinations of Month Numbers in 10 Years)
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17
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1K
Formula for Xo and Yo for graph of quadratic function
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2
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2K
Prove that ##AE=2BC## -Deductive Geometry
2
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52
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3K
Is it possible to find the range of this function?
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22
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1K
Limit question to be done without using derivatives
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25
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1K
Find the values of a and b in the given polynomial
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15
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1K
Show that ##P(X=2)=\dfrac{2}{15}##
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7
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1K
Choose a ball at random from a randomly selected box - alternative way
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10
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2K
Do We Need Boundaries for Fraction Equations?
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21
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1K
Quadratic equation: Which way is correct? pic1 or pic2?
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32
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1K
Complex numbers problem |z| - iz = 1-2i
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20
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2K
Logarithm Questions - Solve Now!
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3
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1K
How do you find the LCM and HCF?
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14
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3K
A problem related to divisibility
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3
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927
Changing the base of a logarithm
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7
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1K
How to apply BODMAS correctly in the given problem
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11
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981
Stopping the Bus in 100m - Can it be done?
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4
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1K
Laws of Logarithms: Definition & Examples
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8
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1K
Calculating Probability Using Bayes' Formula: Solving for P(urn III | silver)
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6
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1K
Prove that ## g(x)=f(x)\log {x}-\int_{2}^{x}t^{-1}f(t)dt ##.
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7
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1K
How Can I Solve a System of Equations With Complex Numbers?
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19
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Solve for ##x## in the Given Problem
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1K
How Can I Solve ##1+i^3+i^5+...+i^{553}+i^{555}\ ?##
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4
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811
InWhat Situations Do We Enounter the Golden Ratio?
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10
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How to prove this using Abel's summation formula?
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9
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1K
Estimating the Gradient of a Graph: Student's Attempt
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11
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1K
Proof about two disjoint non-empty sets ## S ## and ## T ##
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11
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2K
Divisibility Test: Determine if a Number is Divisible by 6, 8, 4
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1K
Proving the result of the following limit
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10
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1K
Express the given matrix in the form ##L_1DU_1##
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9
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1K
Finding square root of number i.e. ##\sqrt{\dfrac{16}{64}}##
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17
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1K
Finding the nth term of a sequence
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12
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2K
Without evaluating the Legendre symbols, prove the following....
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14
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Prove that there are infinitely many primes of the form ## 8k-1 ##
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4
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2K
Prove relation between the group of integers and a subgroup
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6
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915
Solving Simultaneous Equations: 4x + 5y =12 and -8x + 4y =32
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4
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1K
How many birds of each kind did I buy?
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5
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1K
How do we get from one step to another in these factorial equations?
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25
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Solve the given trigonometry problem
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Determine the set of odd primes ## p ##?
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14
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Binary operation on equivalence classes
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3
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Find all possible solutions of x^3 + 2 = 0
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9
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Find all the solutions of the congruence
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6
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Show that ## p ## divides ## 2^{(p-1)/2}-1 ##
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1
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1K
Proof of Inequality: Induction & Derivation Help
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12
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1K
Evaluate the Legendre symbol ## (999|823) ##
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3
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985
Finding the Distance to a Building with Trigonometry
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4
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2K
Finding the Volume of a Slightly non-Rectangular Box
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19
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What does the identity mean here?
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Verify that ## A(225)\geq 1 ##
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F(x)=(x+1)^0.5, h(x)=x^2+3, what is the range of f(h(x))?
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4
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1K
Verify that ## L(1, \chi)\neq 0 ##
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4
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Evaluating several powers of ##x## from a given equation
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6
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1K
Analysis of the mechanics of skydiving
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1
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1K
How to construct a table of values for Dirichlet characters?
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18
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1K
Show that (a-b) + (c-d) = -(b+d) - (-a-c)
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6
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997
What is the formula for finding the nth partial sum?
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15
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1K
Master Factorization with Step-by-Step Guide for x^4 - 3x^2 - 4
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19
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2K
How Do You Calculate Angles AEC and ADC in Geometry?
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8
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2K
Find the remainder when ## 823^{823} ## is divided by ## 11 ##
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14
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2K
Solve the given simultaneous equations that involves hyperbolas
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4
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1K
Calculate the position vector for 3di
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1
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1K
Question about vector coordinates
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4
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1K
Inequality involving a reciprocal - where's the mistake?
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12
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2K
Solve the simultaneous linear congruences
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4
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1K

Precalculus Homework Help

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