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0 
Questions Answered

eva12:
Group Title
suppose v=<4,2,3>.Then
1) <0,2,1> is perpendicular to v
2) <5,5,1> is neither to v
…
 updated yesterday
 2 replies
 No Medals Yet
Mathematics

Oscars8911:
Group Title
If x = 3, then x^27x + 10 equals
 updated yesterday
 9 replies
 2 Medals
Mathematics

UsukiDoll:
Group Title
What is the least number of weights required to weight any integral number of pounds up to 63 pounds if one is allowed to put weights in onl…
 updated 2 days ago
 84 replies
 2 Medals
Mathematics

williamnz:
Group Title
Two planes have equations:
3xy+2z=9 & x+y4z=1
Find a vector equation of the line of intersection of the planes.…
 updated 2 days ago
 61 replies
 2 Medals
Mathematics

UsukiDoll:
Group Title
number theory proof problem regarding Euclid's Division Lemma
 updated 2 days ago
 107 replies
 4 Medals
Mathematics

Castiel:
Group Title
How to prove by induction that this is descending?
 updated 2 days ago
 42 replies
 2 Medals
Mathematics

math92130:
Group Title
can someone please check?
 updated 19 days ago
 5 replies
 1 Medal
Mathematics

rimmi234:
Group Title
Based on the graph below, what is the total number of solutions to the equation f(x) = g(x)?
graph of function f of x equals negative 2 m…
 updated 19 days ago
 10 replies
 No Medals Yet
Mathematics

math92130:
Group Title
i'll attach a photo
 updated 19 days ago
 7 replies
 1 Medal
Mathematics

A.K.C.15:
Group Title
n equation is shown below.
2x + y = 3
…
 updated 19 days ago
 7 replies
 2 Medals
Mathematics

elijah_van17:
Group Title
How do you solve by taking the square root?
4x^2 + 8x + 3 = 0
 updated 19 days ago
 23 replies
 3 Medals
Mathematics

elijah_van17:
Group Title
Solve the system by using elimination or elimination with multiplication.
3x  2y = 9 and 3x + 2y = 9
…
 updated 19 days ago
 25 replies
 2 Medals
Mathematics

dannyrod2000:
Group Title
http://prntscr.com/4cn9fd
 updated 19 days ago
 36 replies
 3 Medals
Mathematics

wagnermar:
Group Title
precalc help
 updated 19 days ago
 9 replies
 3 Medals
Mathematics

aaskashodrej:
Group Title
solve the system of equations x+y+z = 7
 updated 19 days ago
 2 replies
 No Medals Yet
Mathematics

UsukiDoll:
Group Title
http://math.stackexchange.com/questions/864114/findasolutiontoalinearsystemusingthedoperatorandmethodofeliminatio
 updated one month ago
 53 replies
 2 Medals
Mathematics

hartnn:
Group Title
Refreshing Differential Equations:
How do i solve …
 updated 2 months ago
 64 replies
 5 Medals
Mathematics

eric_d:
Group Title
Sketch graph of
…
 updated 2 months ago
 83 replies
 9 Medals
Mathematics

Miracrown:
Group Title
~Officially leaving OS forever~
…
 updated 2 months ago
 138 replies
 20 Medals
Mathematics

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 2 months ago
 34 replies
 5 Medals
Mathematics

Charlenetran:
Group Title
2xy=7 and x+2y=5 solve graphically
 updated 3 months ago
 1 reply
 No Medals Yet
Mathematics

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 3 months ago
 9 replies
 1 Medal
Mathematics

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 3 months ago
 18 replies
 2 Medals
Mathematics

TatMichael:
Group Title
Given the piecewise function shown below, select all of the statements that are true.
 updated 3 months ago
 6 replies
 No Medals Yet
Mathematics

melmel1234:
Group Title
really need help (Will give a medal)
 updated 3 months ago
 8 replies
 1 Medal
Mathematics

UsukiDoll:
Group Title
constant coefficient problem
y'''2y''y'+2y = 0
 updated 3 months ago
 10 replies
 2 Medals
Mathematics

UsukiDoll:
Group Title
separable equation 1/x dx + dy = 0
 updated 3 months ago
 11 replies
 1 Medal
Mathematics

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

quinmiley:
Group Title
is it a or d
 updated 3 months ago
 8 replies
 2 Medals
Mathematics

melmel1234:
Group Title
need help medal will be given
 updated 3 months ago
 10 replies
 2 Medals
Mathematics
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