RaphaelFilgueiras
 Name:
 Raphael Filgueiras
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 Wake Up Brazil!!!
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Questions Answered

redplanet2001:
Group Title
Best answer gets fan and medal from me!!!
…
 updated 4 months ago
 2 replies
 No Medals Yet
Mathematics

Abhisar:
Group Title
two weights w1 and w2 are connected by a light thread which passes over a light smooth pulley if the pulley is raised upwards with an accele…
 updated 4 months ago
 82 replies
 3 Medals
Mathematics

RaphaelFilgueiras:
Group Title
I have
F(theta)=[cos(pi.cos(theta)+n*pi/4)+(1)^n.cos(3pi.cos(theta)+n*pi/4)]²
…
 updated 4 months ago
 7 replies
 No Medals Yet
Mathematics

undeadknight26:
Group Title
Please help: The Martians ask you to explain one last thing, Ultimate Math Ambassador. They ask you to create a new function, h(x). Then as…
 updated 4 months ago
 17 replies
 1 Medal
Mathematics

chariety101:
Group Title
What are the solutions of 2x2  6x = 8?
 updated 4 months ago
 20 replies
 2 Medals
Mathematics

CourtSport7/11:
Group Title
Help please! Will give metal!
The volume of a cube is 36 cubic feet. What is the volume of a pyramid that fits exactly inside the cube? Pr…
 updated 4 months ago
 4 replies
 1 Medal
Mathematics

chariety101:
Group Title
What are the solutions of 2x2 + 8x = 26?
A) 2 ± 3 i
…
 updated 4 months ago
 17 replies
 3 Medals
Mathematics

JerryCharles:
Group Title
2. How many numbers are three units from 0 on the real number line? Explain your answer
 updated 4 months ago
 2 replies
 No Medals Yet
Mathematics

eric_d:
Group Title
Chap 5
4)
 updated 4 months ago
 20 replies
 1 Medal
Mathematics

Avenged7x:
Group Title
The probability that a train leaves on time is 0.7. The probability that the train arrives on time and leaves on time is 0.56. What is the p…
 updated 4 months ago
 5 replies
 1 Medal
Mathematics

mondona:
Group Title
last question ! @RaphaelFilgueiras
 updated 4 months ago
 33 replies
 1 Medal
Mathematics

mondona:
Group Title
@RaphaelFilgueiras
 updated 4 months ago
 8 replies
 1 Medal
Mathematics

mondona:
Group Title
@RaphaelFilgueiras
 updated 4 months ago
 8 replies
 1 Medal
Mathematics

KellySund:
Group Title
(Find one counter example to show that each conjecture is false.)
The sum of two numbers is greater than either number.
 updated 4 months ago
 1 reply
 2 Medals
Mathematics

mondona:
Group Title
@mrdoldum
 updated 4 months ago
 7 replies
 1 Medal
Mathematics

mondona:
Group Title
@mrdoldum
 updated 4 months ago
 9 replies
 1 Medal
Mathematics

angelica_nguyen14:
Group Title
of the first 8 questions on a test, a student must answer 6. of the next 7 questions, 4 must be answered. in how many ways can this be done?
 updated 4 months ago
 2 replies
 No Medals Yet
Mathematics

Stella_l:
Group Title
Let f(x) = 1/sqrt(x+1) , find (f(x+h)f(x))/h .
Simplify as much as possible.
 updated 4 months ago
 45 replies
 3 Medals
Mathematics

melanielovee4:
Group Title
Using the following equation, find the center and radius of the circle. You must show all work and calculations to receive credit.
x^2 + …
 updated 4 months ago
 40 replies
 2 Medals
Mathematics

eagleboy4:
Group Title
Without using (10), show directly that\[\left( 17.6^{1} \right)^{8} = \left( 17.6^{8} \right)\]
 updated 4 months ago
 6 replies
 No Medals Yet
Mathematics

johnson2000:
Group Title
Find the intercepts and relative extrema of
f(x)=(1/4)(x+2)(x1)^2
 updated 4 months ago
 1 reply
 No Medals Yet
Mathematics

johnson2000:
Group Title
Please help, I will fan+medal
Are these expressions Polynomials?
f(x)=3x+(4/3)x^3 7
…
 updated 4 months ago
 3 replies
 No Medals Yet
Mathematics

eagleboy4:
Group Title
I will give a medal
…
 updated 4 months ago
 9 replies
 1 Medal
Mathematics

Shantija:
Group Title
Solve for B: A= 1/2h(b1+b2)
 updated 4 months ago
 3 replies
 1 Medal
Mathematics

csa_hoelife:
Group Title
whats the midpoint of 2,9
 updated 4 months ago
 2 replies
 No Medals Yet
Mathematics

milan_tiffany:
Group Title
please help 3i(63i)
 updated 4 months ago
 2 replies
 1 Medal
Mathematics

kekeray:
Group Title
If the function 200308040000_files/i0060000.jpg were graphed, which of the following would be true?
…
 updated 4 months ago
 2 replies
 No Medals Yet
Mathematics

CountryGal81:
Group Title
Identify the solution(s) of the system of equations, if any.
x + 3y = 7
5x  6y = 0…
 updated 4 months ago
 9 replies
 2 Medals
Mathematics

master50777:
Group Title
Check my answer please. Find the rate of change of f on the interval [pi/2 , 3pi/2]
f(x) = sin(x) / x
 updated 4 months ago
 3 replies
 No Medals Yet
Mathematics

math92130:
Group Title
multiple choice
 updated 4 months ago
 8 replies
 No Medals Yet
Mathematics
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