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.
Determine the validity of the number problem
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Table Height: Solving for the Perfect Fit with Cat and Tortoise Heights
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Find the surface area of the water in the given prism
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3
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Solving for x using 1 - tan(theta) in a Trigonometric Equation
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Show that ##2 {\cos \theta} +(1- \tan \theta)^2≈ 3 - 2\theta##
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Prove trigonometric equality: 1 - cosx = 2(sin^2)*(x/2)
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Tan ##2 \theta=4 /(1-1)##. This means ##2 \theta=90^{\circ}## Why?
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I know ##tan 2\theta## but what is ##sin \theta##
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Why does [sin(θ/2)-cos(θ/2)]^2 not always equal 1?
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Proving three angles are equal if they satisfy two conditions
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Which of these logarithms has the biggest value?
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Find the value of ##r## and ##s## in the given quadratic equation
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920
Solve the quadratic equation involving sum and product
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Finding the length of this side of similar figures
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Solve the given quadratic equation that involves sum and product
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973
Show that ##(x-a)(x-b)=b^2## has real roots- Quadratics
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Show that ##(b-c)x^2+(c-a)x+a-b=0## has rational roots
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How to Efficiently Handle Set Operations Without Inbuilt Functions?
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Help Solving a Trigonometric Equation
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Tracking significant figures through a complicated problem
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Find the volume of the given prism
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30
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Calculate ways to form a committee of 3 from 8, without division?
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3
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892
Calculating coordinates of intercepts from field of view to target
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Find the nth term of the given sequence
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7
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False. The statement does not logically follow from the given information.
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Find z^n+ 1/z^n: Why Consider Only One Argument?
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Multiple angles : Reducing the sum
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11
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Define a Dedekind cut and show the given set is(n't) a Dedekind cut
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548
Does there exist a surjection from the integers to the naturals?
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828
Does there exist a surjection from the natural numbers to the reals?
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Find the probability of different scenarios
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909
Trigonometric ratios of angles above 90 degrees
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5
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Find the area of the quadrilateral
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The given function is an even or an odd function?
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11
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Can double masking increase efficacy by 126% against particles?
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Write the contrapositive and negation of the statement
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16
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Prove by induction the inequality
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13
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Show that gcd(a,b) is the smallest positive element in the set {ma+nb}
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2
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Show that square root of 3 is an irrational number
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Prove that the statement is true or false
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Find the maximum value of the product of two real numbers
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Find the equation of the straight line
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764
Find the values of a and b in the given straight line equation
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2
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911
Can Logarithms Be Used to Solve a Tricky Exponential Problem?
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5
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Solve the proof in problem involving logarithms
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3
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988
Find the value of ##N## in the logarithm problem
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3
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953
How can the logarithm problem be solved?
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5
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Find the car's speed at point when deceleration is increased - Mechanics
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26
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Finding argument of complex number
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10
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Solving an equation for ##x## involving inverse circular functions
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15
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How to Solve a Trigonometry Equation Using Identities and Alternative Methods?
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7
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Finding the horizontal shift of a function
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Proving one equation, cyclic in variables ##a,b,c##, to another
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937
Solve the Modulus equation
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Solve these simultaneous equations that involve vectors
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913
Find the velocity of the airplane if there was no wind
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2
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693
At what time will bike and car be side by side again - Mechanics
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10
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How long must the timetable allow for the whole train journey
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8
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Find the distance between the car and the truck- Mechanics
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Find how fast is the train travelling at the end of the fourth minute?
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9
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950
Imaginary Can We Find the Least Time?
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930
Reducing an algebraic fraction, cyclic in three variables, to another
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1
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Find the time taken to travel from top of slope to base - Mechanics
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2
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706
Find speed of the racing car as it crosses finish line - Mechanics
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2
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1K
How Do You Simplify Complex Algebraic Fractions?
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Reducing one algebraic fraction to another
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I have a real simple question about the Pythagoras theorem
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A complex probability question
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Straight line intersects geometric sequence
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Waiting for a train in a subway
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Continuous joint random variable
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The joint probability - two coins
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How much would you pay to play this fair coin flipping game?
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Trying to find an easier way to compute the double sum
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7
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Solving these Simultaneous Equations
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Find the expected value of a coin flipping game
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7
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Check that the polynomials form a basis of R3[x]
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8
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Line of regression substitution
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Number of ways to make delegations
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825
Probability of getting 5 consecutive heads before 2 consecutive tails
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12
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Strategies for Solving Polynomial Equations: An Engineer's Approach
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Trouble with a double summation
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How to graph by hand: y=log((x/(x+2))
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3
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762
Cannot understand what this proposition is saying
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Interesting Problem I Found (a set obtained by asymmetric scaling)
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Proofing Calculus 1: Prove (-1)*a=-a
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16
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I think the book is wrong about this trig equation
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Sketching a graph of contaminants after a train crash
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800
Simple geometry problem -- Find the perimeter of the triangle ABC
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Easy geometry problem, please give me a hint....
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Probability/Combinatorics: # ways of picking 5 from 3 groups of 6
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Coupon Collection Problem Variation
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Solve cos(a+θ)=0: Exploring Solutions & Understanding Results
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21
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Is this equation involving the acceleration of gravity correct?
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Find the domain of the inverse of a function
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Find the coordinates of a point C from the given line, point and circle
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Sinusoidal Functions: Niagara Falls Skywheel....
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Combinatorics: Seating Problem
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Express logarithm in another variable
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4
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Distance from a point on a circle to an arbitrary axis
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Precalculus Homework Help

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