59,485 Answered Questions for the topic Math

Math

04/15/24

Do you know what is the answer?
Miko has three pieces of string with lengths of 140 cm, 168 cm and 210 cm.She wants to cut all three pieces of string into smaller pieces of equal length such that there is no leftover string.(a)... more
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Math

04/15/24

Do you know what is the answer?
Miko has three pieces of string with lengths of 140 cm, 168 cm and 210 cm.She wants to cut all three pieces of string into smaller pieces of equal length such that there is no leftover string.(a)... more
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Expert Answers •1
Math Algebra 1

04/15/24

What is equation for translated 1 unit right and 5 units down?
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04/15/24

Doppler-effect problem
Please help.I found this interesting problem on the internet, but I don't know how to start it:These are the questions:At what frequency do astronauts hear the hum?What frequency should the radio... more
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Math

04/14/24

Please help with this problem
The point (19,4) is on the graph of y=f(x) a) A point on the graph of y=g(x), where g(x)=f(x−1) is      b) A point on the graph of y=g(x) , where g(x)=f(x)−4 is      c) A point on the... more
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Math

04/14/24

Please I need some help
Given that f(x)=−3x^2+2x and g(x)=2x−1, determine each of the following. Make sure to fully simplify your answer.(a) (f∘g)(x)=   (b) (g∘f)(x)=   (c) (f∘f)(x)=   (d) (g∘g)(x)= 
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Math

04/14/24

Can some please help with this one
Find two nontrivial functions f(x) and g(x) so f(g(x))=(−5−7x)^3=f(x) =   g(x) =   
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04/14/24

Linear Algebra Differential Equations
Consider the following differential systemy′1 = y1 − 3y2 + 4y3 − 5y4 + y5y′2 = −y1 + 2y2 + y4y′3 = y2 + y3 + y4 − y5y′4 = y1 − 4y2 + 4y3 − 3y4 − y5y'5 = −3y2 + 4y3 − 5y4 +... more
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04/14/24

Linear Algebra Diagonalization & Probability

There are 3 telecommunication service providers in a certain country, namely telco A,B, and C. Every year,• about 4% of the subscribers of telco A will change to telco B, and 4% of subscribersof... more
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04/14/24

Linear Algebra Orthonormal Sets
Let a1 = (0 1 -1 0 1), a2 = (-1 0 1 -1 1), a3 = (1 1 1 1 0), a4 = (1 1 1 -1 0)(a) Find an orthonormal set {q1, q2, q3, q4} such that span{a1,...,ai} = span{q1,...,qi} for i = 1, 2, 3, 4. Give exact... more
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Math

04/14/24

Can some please help me hear
Consider the functions f(x)=−4x+9 and g(x)=√−x . Determine each of the following. f∘g(x)=  Give the domain of f∘g(x).    g∘f(x)=   Give the domain of g∘f(x).  
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04/14/24

Math/pre-calc Decay Rate Question
Radioactive substance: Polonium Decay Rate, k: ___% per minute Half life, T: 44.6 Minutes
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04/14/24

Math/Pre-calc, Doubling Time Question
Complete the following table. Population Growth​ Rate, k Doubling​ Time, T Country A 1.61.6​% x Country B x 3232
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04/14/24

Math, Pre-calculus
In​ 2012, the population of a city was 5.27 million. The exponential growth rate was 1.95% per year.​a) Find the exponential growth function.​b) Estimate the population of the city in 2018.​c) When... more
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04/14/24

Simplification of unity cube root
If given that ω is a cube root of unity and using the properties ω, how can I simplify (1 + 2ω + 3ω2)(3 + 2ω + ω2)?
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Expert Answers •2

04/14/24

Finding the roots of a given equation
How can I show that the three roots of the equation z3 = 1 are:ω = (-1+ i√(3))/2,ω2 = (-1- i√(3))/2ω3 = 1
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Math

04/13/24

how to factor with a gcf
i don't know how to do this problem x2-6x+36
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04/13/24

Solve the system by elimination

Solve the system of equations by elimination. Write as an ordered triple x+y+z=102x-5y+7z=243x-7y=-15
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Math

04/12/24

what is the an expression that is equivalent to 5(x-3)
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Math

04/12/24

what is[ 2,-4] and 6 units up equal two
Jason is drawing a line segment on a coordinate grid. He starts at the point (2, –4) and ends at a point 6 units up. At what point does Jason end the line segment?
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Math

04/12/24

This number is nine more than seven squared, minus thirty.
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Math

04/12/24

Math help don't understand it
For the function f(x)=−3x^2+2x+2, evaluate and fully simplify each of the following.f(x+h)−f(x)/h
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Math

04/12/24

Help please don't understand it
If f(x)=x^3+4,g(x)=x−5,h(x)=√x, then (f∘g∘h)(x)=    .You do not need to simplify your answer
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Math

04/12/24

Math help don't understand it can someone please help me with it explain it and show me how to do it
Function Composition Given the function f(x)=2/3x−3 and the function g(x)=9x^2+2x+8 determine each of the following.Give your answer as an integer or a simplified fraction.Evaluate f(g(7))... more
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Math

04/12/24

Help with this problem I don't understand it go someone please show me how to do and explain it
Can someone please help me with is this problem I don't understand itAnswer the following questions for the function, g(x)=2x−12/x^2+3x−4A) Is the point (-6,0) on the graph of y=g(x)? yes no B)... more
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