MelindaR
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 Melinda Rodrigues
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Questions Asked

MelindaR:
Group Title
Can somebody help me solve this one?
sinx*cos³x + sin³x*cosx = 1/2
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 updated one year ago
 41 replies
 1 Medal
Mathematics

MelindaR:
Group Title
Please someone help me!!
The inflation accumulated in the past 5 years was of 28%, and in this same period the price of a kilogram of bean…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

MelindaR:
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I know this might involve many things, but can someone give me a brief explanation on why are there more irrational numbers than real number…
 updated one year ago
 44 replies
 5 Medals
Mathematics

MelindaR:
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Does anyone know what books should I read for SAT exam, books that maybe would help me improve my language skills?
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

MelindaR:
Group Title
Please help, I'm stuck with this. The points A(2,1) and B(1,5) are consecutive vertexes of a rectangle ABCD, find the other vertexes knowin…
 updated 2 years ago
 15 replies
 4 Medals
Mathematics

MelindaR:
Group Title
Can someone help me here, please?
Consider a triangle ABC. Given the vertex A=(4,1), the AB midpoint M=(2, 1) and the barycentre G=(2,0…
 updated 2 years ago
 12 replies
 1 Medal
Mathematics

MelindaR:
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Question is in the comments
 updated 2 years ago
 12 replies
 1 Medal
Mathematics

MelindaR:
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I need to prove this is a natural number, but don't say the answer please, I just want the first step.
 updated 2 years ago
 12 replies
 No Medals Yet
Mathematics

MelindaR:
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Can someone please check my work?
Find the sum of the roots of sin2x = sin x in the interval [0, 2pi].
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 updated 2 years ago
 7 replies
 3 Medals
Mathematics

MelindaR:
Group Title
How can I solve sin 70 cos 50 + sin 50 cos 70 without using a calculator?
 updated 2 years ago
 2 replies
 1 Medal
Mathematics

MelindaR:
Group Title
What's the sum of the roots of sin x (2sin x  1) = 2sin x  1? Can someone check my work and help me find out where I'm making mistakes?
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 updated 2 years ago
 7 replies
 1 Medal
Mathematics

MelindaR:
Group Title
Can someone help me, please? I'm getting nowhere with this...
Consider sin x = 2/3 and 0 < x < pi/2, what's the value of (sec x + cosec x…
 updated 2 years ago
 34 replies
 2 Medals
Mathematics

MelindaR:
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Can someone help me understand this concept by
Karl Marx?
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 updated 2 years ago
 2 replies
 No Medals Yet
Mathematics

MelindaR:
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Personal opinions on Adam Smith?
 updated 2 years ago
 1 reply
 1 Medal
Mathematics

MelindaR:
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Consider f(x) = 5f(x1) and f(1) = 2. I'm having trouble trying to find f(1), please help!
 updated 2 years ago
 4 replies
 2 Medals
Mathematics

MelindaR:
Group Title
xf(x) + 2f(2/x) = x + 1 (x isn't 0)
I need to find f(x), answer is 1/x. I've tried everything but I just don't get it, can someone help me …
 updated 2 years ago
 20 replies
 2 Medals
Mathematics

MelindaR:
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what harm does carbon dioxide cause to health?
 updated 2 years ago
 5 replies
 1 Medal
Mathematics

MelindaR:
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I need help in understanding this
A carpenter painted of blue all the faces of a solid block of wood and then cut it into small cubes wit…
 updated 2 years ago
 21 replies
 2 Medals
Mathematics

MelindaR:
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what happens if someone is working on a laptop and spills water on it? The person's hands start to shake, how bad is it?
 updated 2 years ago
 13 replies
 No Medals Yet
Mathematics

MelindaR:
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What's the molecular form of this? http://www.fisicainteressante.com/imagefiles/cubo4.jpg
 updated 2 years ago
 12 replies
 2 Medals
Mathematics

MelindaR:
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what's the most important thing in organic Chemistry?
 updated 2 years ago
 40 replies
 2 Medals
Mathematics

MelindaR:
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Can someone help me draw a convex polyhedron with 6 vertices, 9 edges and 5 faces?
 updated 2 years ago
 8 replies
 4 Medals
Mathematics

MelindaR:
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I have a really silly question, why is the perimeter of this figure p=(6+8)*2?
 updated 2 years ago
 9 replies
 1 Medal
Mathematics

MelindaR:
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A convex polyhedron is formed by square sides and four triangular faces. The sum of the angles of all the faces is equal to 12 right angles.…
 updated 2 years ago
 13 replies
 2 Medals
Mathematics

MelindaR:
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There are four phases of the capitalism, can anyone describe the first three in a quick understanble way? Please
 updated 2 years ago
 No Medals Yet
Mathematics

MelindaR:
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Do you know anybody that suffers from Klinefelter's Syndrome? How should society act towards them?
 updated 2 years ago
 8 replies
 2 Medals
Mathematics

MelindaR:
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A literature test with 5 alternatives and only one correct, referring to the birthdate of a famous writer, has the following options: A) XIX…
 updated 2 years ago
 5 replies
 No Medals Yet
Mathematics

MelindaR:
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Four identical metallic spheres (A, B, C and D) are isolated from each other. A, B and C are neutral and D has a Q charge. What are the fina…
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics

MelindaR:
Group Title
How would you write a recommendation letter for a student? Help
 updated 2 years ago
 8 replies
 1 Medal
Mathematics

MelindaR:
Group Title
I'm writing a paper about this documentary called The Corporation. It is about the origin of the greatest companies in the world and how the…
 updated 2 years ago
 1 reply
 No Medals Yet
Mathematics
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