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.
Prove that terms cyclic in ##a,b,c##, are in ##\text{AP}##
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Rounding Errors to nearest 10cm
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Solve the given inequality Q. 21
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Question about the property of PDF
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Show that these equations are linearly dependent using Mathematica
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Quantitative reasoning problem
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Find the sum of the coefficients of ##(x+y)^{16}##
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Why is ##^{2m}C_m## equivalent to ##\dfrac{2m!}{m!m!}##?
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Help please with De Moivre's Theorem (raising a complex number to a power)
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Where Did ##(n−r+1)^{th}## Come From in Binomial Expansion?
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Find the smallest integer ## a>2 ## such that ## 2\mid a ##
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Optimizing Null Space Solutions: How to Remove Zeros in Rank Deficient Matrices
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Complex mapping z ↦ ω = (z − a)/(z − b)
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Partial Permutation, Combination question for buying dogs at the pet store
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How can we fairly distribute food among four people with different appetites?
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What is a point of using complex numbers here?
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How Many Type A Pigs Have 3 DYL Blood in a Herd of 1,000?
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Combination, partial permutation
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Drawing marked balls from an urn
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Basic counting methods — integers between 1 and 100 that are divisible by 7
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Where Did I Go Wrong When Solving Inequalities With Negative Numbers?
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S=u*t+a*t^2/2 VS ratio 1:2:3:5... t1/t10= ...
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Find an integer having the remainders ## 1, 2, 5, 5 ##
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Basic combinatorics: How many ways can 4 boys and 4 girls sit in a row such that no 2 girls sit together?
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A railway carriage will accommodate 5 passengers on each side
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MHB Volume and surface area of "One World Trade Center"
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Probability related to cumulative distribution function
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Two link planar robot elbow errors in textbook (Inverse kinematics)
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Poisson Probability Distribution Problem
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Find the value of ##k^2## in the problem involving trigonometry
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Prove that ## 4\tan^{-1}\left[\dfrac{1}{5}\right]- \tan^{-1}\left[\dfrac{1}{239}\right]= \dfrac{π}{4}##
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Ratio of the sum of ##n## terms of two AP series
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Decompose 4x4 determinant into 24 determinants -- How many are zero?
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Solve ## 4x+51y=9: x=15+51t, y=-1-4t ##
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Solve the equation: ##\tan x ⋅\tan 4x = 1##
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Is My Proof That ab<a Correct Given 0<a<1 and 0<b<1?
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Understanding Cubic Factorization: Solving for Roots with a and -2a
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Identifying matrices as REF, RREF, or neither
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Limit to Infinity of Quotient with Square Root - Reducing the Equation
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Proving a trigonometric identity with ##\sin^4## s and ##\cos^4## s
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Binomial Theorem - determine the term with...
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Roots of a polynomial mixed with a trigonometric function
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Difference between -3² and (-3)² ?
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Matrices: if AB=A and BA=B, then B^2 is equal to?
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Are the following statements true? (1) a∈{{a},{a,b}} and (2) b∈{{a},{a,b}} true?
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Find the smallest value of angle ##α + β ##
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An inequality involving ##x## on both sides: ##\sqrt{x+2}\ge x##
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Solve the problem that involves ##\cos^{-1} x + \cos^{-1}y##
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Solve the given problem involving: ##\tan^{-1} (2x+1)+ \tan^{-1} (2x-1)##
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Solve the problem that involves diameter of the Bullseye
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Partial Fraction Decomposition
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Prove that the given inverse trigonometry equation is correct
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Show that the ratio ##x+y:x-y## is increased by subtracting ##y##
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I don't get a step with this quadratic question
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Solve these simultaneous equations
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Solve the given simultaneous equations
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Is ##9\sqrt[3]{-3}## Equivalent to ##-9\sqrt[3]{3}##?
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Solve the given simultaneous equations in x^2, x and y
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Solve the simultaneous equations involving x, y, and their squares
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Simplifying (b-a)/(a-b): A Scientific Approach
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Question about this technique for solving simultaneous equations
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Number of ways to partition n persons and probability to form n groups
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Applications of algebraic expressions
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Probability using combinations or alternatives
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Basic probability question (1 boy + 2 girls of a group of 7)
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Find the total number of ways of coloring the eight regions
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Question about permutation formula -- How to use the formula when r = 0 ?
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Discover Circle Theorem Help for Triangle PST: PSR Angle = 77 Degrees
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Find the area of the quadrilateral OCBAO
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Calculating Cable Turns for a Job
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Solve the problem that involves iteration
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Solve the given problem involving functions: f(x)=|ax-b| and y=f(x)+c
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Solve the given problem involving logarithms
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Prove this variation: If a+b ∝ a-b, prove that a^2+b^2 ∝ ab
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Proving trig identities -- Is the method related to the unit circle?
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Derivative of a piecewise function
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Solving for a, b, and c in this equation for $ revenue for a circus
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Solve the given problem that involves binomial theorem
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Ideal Straight Line Fit for a Temperature Sensor Output
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How Did 1886 Dutch Students Solve This Complex Math Problem?
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Finding compound interest formula
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Solve the given problem that involves Trigonometry
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Find the possible values of angle ##∠ADB##
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Determine the position vector of ##C##
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Prove that these three ratios are equivalent
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Adding square roots of ##i## leading to different answers!
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How Did the Author Derive the Perfect Square from the Algebraic Equation?
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Vector addition and subtraction
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Calculating Radius & Water Depth of a Spherical Bowl
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Evaluating the angle theta using inverse sin
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Finding the solution to system of 3 equations with 3 unknowns
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Complex numbers confusion (how they got this expression in orange to become -1)
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Conceptual question on equations of the form ##x=ay^2+by+c##
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How Do You Form a Linear Equation for the Equipment's Value Over 10 Years?
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Is it possible to find a number x such that 5 < x < 1?
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If 1=5, 2=25, 3=125,4=1880, 5=?
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Number of lines equidistant from four points on a plane
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Chance of Selecting Twins from Group of 30 [Solved!]
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Plotting points in three-dimensional space
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Trying to understand the property of absolute value inequality
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