ivanmlerner
 Name:
 Ivan Lerner
 School:
 University of São Paulo
 About:
 Physics student
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Questions Answered

alberto847:
Group Title
3A2e)
Is there an error in the solutions for this problem?
 updated 11 months ago
 6 replies
 No Medals Yet
Mathematics

sammaraq60:
Group Title
Which scenario starts with a linear pattern that eventually becomes nonlinear?
Scenario 1: Jasper reads for 45 minutes every day.
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Gabylovesyou:
Group Title
simplify 12f^6g / 9f^3
 updated one year ago
 14 replies
 1 Medal
Mathematics

TheHero:
Group Title
Tia photocopied the image of a design for a monorail track system. The figure below shows the design and its photocopy.
The ratio of DA …
 updated one year ago
 25 replies
 2 Medals
Mathematics

d_loparsaie:
Group Title
The Montgomery Park officials plan to construct a concession stand beside an access road. They will also construct asphalt pathways from the…
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

Boushra:
Group Title
2x^3+7x^28*x21 = 0 .. the answer is x=3/2, please show the working.
 updated one year ago
 36 replies
 No Medals Yet
Mathematics

d_loparsaie:
Group Title
For the vectors, write the resultant as an ordered pair. *attachment below*
 updated one year ago
 24 replies
 2 Medals
Mathematics

Shannon20150:
Group Title
If x is the probability of an event happening, then which of the following represents x?
…
 updated one year ago
 7 replies
 1 Medal
Mathematics

Danny_Boy:
Group Title
What is the area of the shaded region below? Assume the hexagon is regular. Use your calculator and round your final answer to the nearest h…
 updated one year ago
 5 replies
 No Medals Yet
Mathematics

Harikrish:
Group Title
According to genetic theory, every plant of a particular species has a 25% chance of being redflowering, independently of all other plants.…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

taiga_aisaka:
Group Title
Can I get a step by step instructions on how I can solve a definite integral? Like this one for example:
 updated one year ago
 4 replies
 1 Medal
Mathematics

MSMR:
Group Title
Find the equation of a curve that is four more units away from (10, 0) than (10,0)
 updated one year ago
 4 replies
 1 Medal
Mathematics

Msjones:
Group Title
find the vertex of y=x^28x+19
 updated one year ago
 3 replies
 1 Medal
Mathematics

MarcLeclair:
Group Title
Relativity question: A meter stick in frame S makes an angle of 30° with the x axis. If that frame moves parallel to the x axis of frame S…
 updated one year ago
 1 reply
 1 Medal
Mathematics

alysha:
Group Title
find the equation of the cosine function ith an amplitude of 2/3, 3 pi, phase shift of 2 pi, and vertical shift of 1/3 units down
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

vivianrush:
Group Title
Algebra 2 help please
 updated one year ago
 6 replies
 No Medals Yet
Mathematics

Shannon20150:
Group Title
Simplify.
 updated one year ago
 23 replies
 No Medals Yet
Mathematics

krlg11:
Group Title
Find increasing and decreasing intervals of f(x)
f(x)=5x^240x28
 updated one year ago
 18 replies
 No Medals Yet
Mathematics

91004775:
Group Title
f(x)=x^3−5x^2+5x−3
when is the function concave up and when is it concave down
…
 updated one year ago
 3 replies
 2 Medals
Mathematics

nanis092:
Group Title
suppose f(u,v) is a differentiable fucntion of two variables, and w=xyf(xz,yz). Show that x(dw/dx)+y(dw/dy)z(dw/dz) = 2w
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

farahj1:
Group Title
Can you check and correct my algebra anwers
1 A
2 C
…
 updated one year ago
 12 replies
 No Medals Yet
Mathematics

vivianrush:
Group Title
tan 2pi/3
square root of three
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

heyheyhelpme:
Group Title
Every function pairs __________ output value with one input value
more than one
at least one
…
 updated one year ago
 12 replies
 1 Medal
Mathematics

farahj1:
Group Title
Can you check and correct my answers for Algebra?!
1 8n/8
2 2x2/10
…
 updated one year ago
 44 replies
 1 Medal
Mathematics

Mendicant_Bias:
Group Title
Integral problem regarding finding the area of a solid via the shell method, the rotational axis being the yaxis. (Posting below, one momen…
 updated one year ago
 44 replies
 1 Medal
Mathematics

TessaMarie08181997:
Group Title
trail and error?!?
n^2  16n + 48
 updated one year ago
 7 replies
 1 Medal
Mathematics

Laken:
Group Title
How Do You Write 1/8 As A Percent ?
@dmezzullo
 updated one year ago
 10 replies
 3 Medals
Mathematics

heyheyhelpme:
Group Title
Which function table is correct for the rule
1.) Input (x) Output (y)
…
 updated one year ago
 26 replies
 No Medals Yet
Mathematics

Kaila_111697:
Group Title
Do sound waves travel better through hot or cold gases?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

heyheyhelpme:
Group Title
Which function table is correct for the rule y = –2x?
1.)Input (x) Output (y)
…
 updated one year ago
 20 replies
 No Medals Yet
Mathematics
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