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

alberto847:
3A2e)
Is there an error in the solutions for this problem?
 updated 7 months ago
 6 replies
 No Medals Yet
Mathematics

sammaraq60:
Which scenario starts with a linear pattern that eventually becomes nonlinear?
Scenario 1: Jasper reads for 45 minutes every day.
…
 updated 8 months ago
 1 reply
 No Medals Yet
Mathematics

Gabylovesyou:
simplify 12f^6g / 9f^3
 updated 11 months ago
 14 replies
 1 Medal
Mathematics

TheHero:
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 11 months ago
 25 replies
 2 Medals
Mathematics

d_loparsaie:
The Montgomery Park officials plan to construct a concession stand beside an access road. They will also construct asphalt pathways from the…
 updated 11 months ago
 4 replies
 No Medals Yet
Mathematics

Boushra:
2x^3+7x^28*x21 = 0 .. the answer is x=3/2, please show the working.
 updated 11 months ago
 36 replies
 No Medals Yet
Mathematics

d_loparsaie:
For the vectors, write the resultant as an ordered pair. *attachment below*
 updated 11 months ago
 24 replies
 2 Medals
Mathematics

Shannon20150:
If x is the probability of an event happening, then which of the following represents x?
…
 updated 11 months ago
 7 replies
 1 Medal
Mathematics

Danny_Boy:
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 11 months ago
 5 replies
 No Medals Yet
Mathematics

Harikrish:
According to genetic theory, every plant of a particular species has a 25% chance of being redflowering, independently of all other plants.…
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

taiga_aisaka:
Can I get a step by step instructions on how I can solve a definite integral? Like this one for example:
 updated 11 months ago
 4 replies
 1 Medal
Mathematics

MSMR:
Find the equation of a curve that is four more units away from (10, 0) than (10,0)
 updated 11 months ago
 4 replies
 1 Medal
Mathematics

Msjones:
find the vertex of y=x^28x+19
 updated 11 months ago
 3 replies
 1 Medal
Mathematics

MarcLeclair:
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 11 months ago
 1 reply
 1 Medal
Mathematics

alysha:
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 11 months ago
 1 reply
 No Medals Yet
Mathematics

vivianrush:
Algebra 2 help please
 updated 11 months ago
 6 replies
 No Medals Yet
Mathematics

Shannon20150:
Simplify.
 updated 11 months ago
 23 replies
 No Medals Yet
Mathematics

krlg11:
Find increasing and decreasing intervals of f(x)
f(x)=5x^240x28
 updated 11 months ago
 18 replies
 No Medals Yet
Mathematics

91004775:
f(x)=x^3−5x^2+5x−3
when is the function concave up and when is it concave down
…
 updated 11 months ago
 3 replies
 2 Medals
Mathematics

nanis092:
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 11 months ago
 1 reply
 No Medals Yet
Mathematics

farahj1:
Can you check and correct my algebra anwers
1 A
2 C
…
 updated 11 months ago
 12 replies
 No Medals Yet
Mathematics

vivianrush:
tan 2pi/3
square root of three
…
 updated 11 months ago
 3 replies
 No Medals Yet
Mathematics

heyheyhelpme:
Every function pairs __________ output value with one input value
more than one
at least one
…
 updated 11 months ago
 12 replies
 1 Medal
Mathematics

farahj1:
Can you check and correct my answers for Algebra?!
1 8n/8
2 2x2/10
…
 updated 11 months ago
 44 replies
 1 Medal
Mathematics

Mendicant_Bias:
Integral problem regarding finding the area of a solid via the shell method, the rotational axis being the yaxis. (Posting below, one momen…
 updated 11 months ago
 44 replies
 1 Medal
Mathematics

TessaMarie08181997:
trail and error?!?
n^2  16n + 48
 updated 11 months ago
 7 replies
 1 Medal
Mathematics

Laken:
How Do You Write 1/8 As A Percent ?
@dmezzullo
 updated 11 months ago
 10 replies
 3 Medals
Mathematics

heyheyhelpme:
Which function table is correct for the rule
1.) Input (x) Output (y)
…
 updated 11 months ago
 26 replies
 No Medals Yet
Mathematics

Kaila_111697:
Do sound waves travel better through hot or cold gases?
 updated 11 months ago
 1 reply
 No Medals Yet
Mathematics

heyheyhelpme:
Which function table is correct for the rule y = –2x?
1.)Input (x) Output (y)
…
 updated 11 months ago
 20 replies
 No Medals Yet
Mathematics
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