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.
Find the value of ##a, b## and ##k## in the problem involving graphs
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6
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864
Find the ##r^{th}## term from beginning and end of ##(a+2x)^n##
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13
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740
Choose 6 pieces of candy from three flavors
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12
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758
Trying to resolve a volume calculation
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2
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660
Finding a conditional probability from joint p.d.f
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4
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604
A gardener collected 17 apples...
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32
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952
Prove that terms cyclic in ##a,b,c##, are in ##\text{AP}##
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7
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1K
Rounding Errors to nearest 10cm
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26
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2K
Solve the given inequality Q. 21
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2
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604
Question about the property of PDF
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8
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867
Show that these equations are linearly dependent using Mathematica
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6
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700
Quantitative reasoning problem
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5
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636
Find the sum of the coefficients of ##(x+y)^{16}##
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5
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597
Why is ##^{2m}C_m## equivalent to ##\dfrac{2m!}{m!m!}##?
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6
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728
Help please with De Moivre's Theorem (raising a complex number to a power)
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16
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1K
In the expansion of ##(1+x)^n##, the coefficients of terms equidistant from the beginning and the end are equal
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3
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708
Find the smallest integer ## a>2 ## such that ## 2\mid a ##
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3
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962
Optimizing Null Space Solutions: How to Remove Zeros in Rank Deficient Matrices
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10
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671
Complex mapping z ↦ ω = (z − a)/(z − b)
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5
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584
Partial Permutation, Combination question for buying dogs at the pet store
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19
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900
How can we fairly distribute food among four people with different appetites?
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27
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652
What is a point of using complex numbers here?
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3
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556
Statistics and Probabilities: How many type A pigs from the farm's herd of 1,000 pigs have 3 DYL blood?
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21
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707
Combination, partial permutation
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1
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478
Drawing marked balls from an urn
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10
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881
Basic counting methods — integers between 1 and 100 that are divisible by 7
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19
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1K
Inequalities With negative numbers and switching x -- therefore switching the sign
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8
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523
S=u*t+a*t^2/2 VS ratio 1:2:3:5... t1/t10= ...
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8
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871
Find an integer having the remainders ## 1, 2, 5, 5 ##
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7
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1K
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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27
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1K
A railway carriage will accommodate 5 passengers on each side
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4
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694
MHB Volume and surface area of "One World Trade Center"
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6
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2K
Probability related to cumulative distribution function
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4
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690
Two link planar robot elbow errors in textbook (Inverse kinematics)
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3
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577
Poisson Probability Distribution Problem
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19
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12K
Find the value of ##k^2## in the problem involving trigonometry
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7
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1K
Prove that ## 4\tan^{-1}\left[\dfrac{1}{5}\right]- \tan^{-1}\left[\dfrac{1}{239}\right]= \dfrac{π}{4}##
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13
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792
Ratio of the sum of ##n## terms of two AP series
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9
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602
Decompose 4x4 determinant into 24 determinants -- How many are zero?
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1
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592
Solve ## 4x+51y=9: x=15+51t, y=-1-4t ##
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2
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1K
Solve the equation: ##\tan x ⋅\tan 4x = 1##
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4
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881
Is My Proof That ab<a Correct Given 0<a<1 and 0<b<1?
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4
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613
Understanding Cubic Factorization: Solving for Roots with a and -2a
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6
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638
Identifying matrices as REF, RREF, or neither
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1
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830
Limit to Infinity of Quotient with Square Root - Reducing the Equation
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8
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656
Proving a trigonometric identity with ##\sin^4## s and ##\cos^4## s
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12
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775
Binomial Theorem - determine the term with...
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18
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1K
Roots of a polynomial mixed with a trigonometric function
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14
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879
Difference between -3² and (-3)² ?
2
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53
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3K
Matrices: if AB=A and BA=B, then B^2 is equal to?
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18
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2K
Are the following statements true? (1) a∈{{a},{a,b}} and (2) b∈{{a},{a,b}} true?
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8
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826
Find the smallest value of angle ##α + β ##
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11
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764
An inequality involving ##x## on both sides: ##\sqrt{x+2}\ge x##
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3
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1K
Solve the problem that involves ##\cos^{-1} x + \cos^{-1}y##
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3
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671
Solve the given problem involving: ##\tan^{-1} (2x+1)+ \tan^{-1} (2x-1)##
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10
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625
Solve the problem that involves diameter of the Bullseye
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2
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524
Partial Fraction Decomposition
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4
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848
Prove that the given inverse trigonometry equation is correct
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5
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608
Show that the ratio ##x+y:x-y## is increased by subtracting ##y##
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4
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709
I don't get a step with this quadratic question
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12
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735
Solve these simultaneous equations
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6
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631
Solve the given simultaneous equations
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8
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650
Is ##9\sqrt[3]{-3}## Equivalent to ##-9\sqrt[3]{3}##?
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4
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594
Solve for ##u## and ##v## in the given equations
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2
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469
Solve the given simultaneous equations in x^2, x and y
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1
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563
Solve the simultaneous equations involving x, y, and their squares
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2
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555
Simplifying (b-a)/(a-b): A Scientific Approach
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10
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728
Question about this technique for solving simultaneous equations
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4
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675
Number of ways to partition n persons and probability to form n groups
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10
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1K
Applications of algebraic expressions
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6
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621
Probability using combinations or alternatives
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12
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1K
How many positive integers x satisfy this logarithmic inequality?
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2
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629
Basic probability question (1 boy + 2 girls of a group of 7)
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6
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808
Find the total number of ways of coloring the eight regions
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7
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940
Question about permutation formula -- How to use the formula when r = 0 ?
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6
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758
Discover Circle Theorem Help for Triangle PST: PSR Angle = 77 Degrees
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1
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560
Find the area of the quadrilateral OCBAO
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8
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622
Calculating Cable Turns for a Job
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5
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1K
Solve the problem that involves iteration
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21
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1K
Solve the given problem involving functions: f(x)=|ax-b| and y=f(x)+c
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19
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962
Solve the given problem involving logarithms
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18
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1K
Prove this variation: If a+b ∝ a-b, prove that a^2+b^2 ∝ ab
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11
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968
Proving trig identities -- Is the method related to the unit circle?
2
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54
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2K
Derivative of a piecewise function
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6
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589
Solving for a, b, and c in this equation for $ revenue for a circus
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4
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632
Solve the given problem that involves binomial theorem
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2
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623
Ideal Straight Line Fit for a Temperature Sensor Output
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2
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561
How Did 1886 Dutch Students Solve This Complex Math Problem?
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34
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2K
Finding compound interest formula
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2
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669
Solve the given problem that involves Trigonometry
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7
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670
Find the possible values of angle ##∠ADB##
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2
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587
Determine the position vector of ##C##
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1
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521
Prove that these three ratios are equivalent
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11
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901
Adding square roots of ##i## leading to different answers!
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21
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818
How Did the Author Derive the Perfect Square from the Algebraic Equation?
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5
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791
Vector addition and subtraction
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13
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956
Calculating Radius & Water Depth of a Spherical Bowl
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7
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2K
Evaluating the angle theta using inverse sin
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4
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762
Finding the solution to system of 3 equations with 3 unknowns
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2
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571
Complex numbers confusion (how they got this expression in orange to become -1)
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25
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1K

Precalculus Homework Help

Precalculus Homework Help involves providing support to students working on assignments related to precalculus, a preparatory course that covers mathematical concepts essential for calculus.

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