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Questions Answered

LifeEngineer:
Find the radius of the largest sphere centered at the origin that could be inscribed by the ellipsoid:
2(x+1)^2 + y^2 + 2(z1)^2 = 8
 updated 16 hours ago
 5 replies
 2 Medals
Mathematics

mathslover:
Limits question.. Got stuck in between :(
The question is :
…
 updated 18 hours ago
 22 replies
 5 Medals
Mathematics

sourwing:
what is the difference between image and range?
 updated 18 hours ago
 4 replies
 No Medals Yet
Mathematics

YanaSidlinskiy:
Combinations/Permutations.
 updated 18 hours ago
 23 replies
 4 Medals
Mathematics

suzi20:
"if f is differentiable then f is continuous"
the converse:
"if f is continuous then f is differentiable"
…
 updated 19 hours ago
 11 replies
 3 Medals
Mathematics

Agent_A:
Question on ln and Derivatives. (Hold on. Still typing the equations)
 updated 19 hours ago
 3 replies
 1 Medal
Mathematics

UsukiDoll:
prove that gcd(a,m) = 1 and gcd(b,m) = 1 if and only if gcd(ab,m) = 1
Just If gcd(ab,m) = 1, then gcd(a,m) = 1 and gcd(b,m) = 1 only
 updated 19 hours ago
 12 replies
 2 Medals
Mathematics

UsukiDoll:
@satellite73 need your help figuring this out.... going to type in details in the comments
 updated 16 hours ago
 25 replies
 No Medals Yet
Mathematics

QueenBee232:
how do you find voltage of one light bulb in a series of bulbs?
 updated yesterday
 15 replies
 No Medals Yet
Mathematics

Maria195:
Simplify 15C3
A. 182
…
 updated yesterday
 12 replies
 2 Medals
Mathematics

sourwing:
If f:A>B and g: B>A. Is this enough to say f and g are onto?
 updated yesterday
 4 replies
 1 Medal
Mathematics

henryarias5:
help please! sum of a geometric series!! word problem
 updated yesterday
 100 replies
 No Medals Yet
Mathematics

josiahh:
Anybody understands NP complete problems? Especially the ones related to Bonnie and Clyde?
 updated yesterday
 31 replies
 2 Medals
Mathematics

Maria195:
15. Simplify 6P2
A. 30
…
 updated yesterday
 2 replies
 1 Medal
Mathematics

shelbydy:
verify 1sin^2(2x)=(12sin^2(x))^2
 updated 2 days ago
 2 replies
 2 Medals
Mathematics

Kainui:
When is this true?
4 = 4
 updated 2 days ago
 10 replies
 4 Medals
Mathematics

sharon_penn:
find the volume of the composite solid round your answer to the nearest tenth looks like a cylinder with half a sphere connected on each en…
 updated 2 days ago
 14 replies
 1 Medal
Mathematics

Chikhen:
3cos^2 x2 cos x2=0
 updated 2 days ago
 1 reply
 1 Medal
Mathematics

smurfy14:
limit as n goes to infinity of log2(n) / log2(n2+1) HELP!
 updated 2 days ago
 6 replies
 2 Medals
Mathematics

QueenBee232:

 updated 3 days ago
 9 replies
 1 Medal
Mathematics

silvia189st:
A player rolls a fair die and receives a number of dollars equal to the number of dots appearing on the face of the die. What is the least t…
 updated 3 days ago
 8 replies
 No Medals Yet
Mathematics

ajralejandro:
cos^4(2u)sin^4(2u)
 updated 3 days ago
 1 reply
 No Medals Yet
Mathematics

malihe:
implementing peer to peer network
 updated 3 days ago
 4 replies
 No Medals Yet
Mathematics

RaphaelE:
http://screencast.com/t/O8m7DROeSk3v
Not sure how to do this. Does it involve using the radius formula? x^2+y^2=r? Not even sure where t…
 updated 3 days ago
 3 replies
 No Medals Yet
Mathematics

silvia189st:
Find the probability of the complement ā of the event a if P(a)=.23
 updated 3 days ago
 2 replies
 2 Medals
Mathematics

MathsStar:
a force of 6N is applied on a box of mass 2kg, in the diagram. if the angle of inclination is 30 degrees, and the distance the box can trave…
 updated 3 days ago
 11 replies
 No Medals Yet
Mathematics

sourwing:
If it says "proves that f∪g : (A∪B)>B". Is it asking to prove the so called "f∪g" relation is a function from (A∪B) to C?
 updated 4 days ago
 5 replies
 No Medals Yet
Mathematics

pdd21:
Help please! (:
Integral Problem attached below.
 updated 4 days ago
 11 replies
 No Medals Yet
Mathematics

UnkleRhaukus:
pset3/find, i need some help
 updated 2 days ago
 8 replies
 1 Medal
Mathematics

sourwing:
how is ∀x (~P(x) or ∃y (P(y) and x ≠ y)) equivalent to
∀x ~P(x) or ∃x ∃y (P(x) and P(y) and x ≠ y)
 updated 4 days ago
 29 replies
 1 Medal
Mathematics
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