Questions Answered

UsukiDoll:
Group Title
http://math.stackexchange.com/questions/864114/findasolutiontoalinearsystemusingthedoperatorandmethodofeliminatio
 updated 16 days ago
 53 replies
 2 Medals

hartnn:
Group Title
Refreshing Differential Equations:
How do i solve …
 updated 29 days ago
 64 replies
 5 Medals

eric_d:
Group Title
Sketch graph of
…
 updated 29 days ago
 83 replies
 9 Medals

Miracrown:
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~Officially leaving OS forever~
…
 updated 29 days ago
 138 replies
 20 Medals

baseballer2014:
Group Title
In a room full of 30 people, what is the probability that at least 2 of them have the same birthday?
 updated one month ago
 34 replies
 5 Medals

Charlenetran:
Group Title
2xy=7 and x+2y=5 solve graphically
 updated 2 months ago
 1 reply
 No Medals Yet

golden_bullets:
Group Title
Select the pair of equations whose graphs are perpendicular. A. y = 2x – 7 x + 3y = 3 B. 2y = –3x + 5 2x – 3y = 4 C. 3x + 6y = 8 y…
 updated 2 months ago
 9 replies
 1 Medal

vshiroky:
Group Title
Math common core place values... what kids are doing now is way different then what I know.. please help attachment in comments
 updated 2 months ago
 18 replies
 2 Medals

TatMichael:
Group Title
Given the piecewise function shown below, select all of the statements that are true.
 updated 2 months ago
 6 replies
 No Medals Yet

melmel1234:
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really need help (Will give a medal)
 updated 2 months ago
 8 replies
 1 Medal

UsukiDoll:
Group Title
constant coefficient problem
y'''2y''y'+2y = 0
 updated 2 months ago
 10 replies
 2 Medals

UsukiDoll:
Group Title
separable equation 1/x dx + dy = 0
 updated 2 months ago
 11 replies
 1 Medal

UsukiDoll:
Group Title
dy/dx = x+1 / y separable equation
 updated 2 months ago
 9 replies
 3 Medals

quinmiley:
Group Title
is it a or d
 updated 2 months ago
 8 replies
 2 Medals

melmel1234:
Group Title
need help medal will be given
 updated 2 months ago
 10 replies
 2 Medals

UsukiDoll:
Group Title
another separable equation
xdx+ydy = 0
 updated 2 months ago
 15 replies
 4 Medals

UsukiDoll:
Group Title
separable equation see drawing
 updated 2 months ago
 29 replies
 3 Medals

Tyndall25:
Group Title
let sinA = 3/5 in QI find cosA and tanA
 updated 2 months ago
 6 replies
 2 Medals

Tyndall25:
Group Title
Prove the following
 updated 2 months ago
 13 replies
 1 Medal

xuvaze:
Group Title
Find tan (A  B) for sin A = 12/13 with 0 < A < π/2 and cos B = 8/17 with 0 < B < π/2
 updated 2 months ago
 8 replies
 No Medals Yet

HappiestJake:
Group Title
x^3+2x^29x18
The answer is x=2,3i,3i
have to show work but I don't know how he got that answer
 updated 2 months ago
 13 replies
 4 Medals

melacho:
Group Title
Find an equation for the nth term of the sequence.
4, 16, 64, 256, ...
 updated 2 months ago
 22 replies
 2 Medals

jtryon:
Group Title
The 1906 San Francisco earthquake had a magnitude of 7.9 on the MMS scale. At the same time there was an earthquake with magnitude 5 that ca…
 updated 2 months ago
 38 replies
 2 Medals

grinnell.12:
Group Title
Take the derivative of y=sin^5 3x
 updated 2 months ago
 44 replies
 6 Medals

VintageTypewriter:
Group Title
Find dy/dx .... xy^2 = cos x
 updated 2 months ago
 65 replies
 7 Medals

UsukiDoll:
Group Title
http://math.stackexchange.com/questions/751410/provefinftyainftyrightarrowbinftyisabijection
 updated 2 months ago
 50 replies
 No Medals Yet

swift_13:
Group Title
Which function(s) have this graph?
y = sin(x)
y = cos(x  π/2)
…
 updated 2 months ago
 20 replies
 1 Medal

Frostbitten:
Group Title
Really confused, please help
1. sqrt 64y^10h^5/sqrt 16 y^12h^3
a) sqrt 4h^2/sqrt y^2
…
 updated 2 months ago
 52 replies
 1 Medal

chikoisme:
Group Title
solve this.
 updated 2 months ago
 4 replies
 No Medals Yet

UsukiDoll:
Group Title
http://math.stackexchange.com/questions/776815/letaabcfgibbfhandcaklmshowthatbackslashis
 updated 2 months ago
 2 replies
 No Medals Yet
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