Rachel123
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 Questions Asked
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 Questions Asked
 1
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 Questions Asked
 9
 Questions Answered
 6
 Medals Received
 2
Questions Answered

rebecca1233:
What is the perimeter of a square with a side of 13 in.?
26 in.
…
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Naterx7:
Simplify: (4x − 6) + (5x + 1)
 updated one year ago
 4 replies
 No Medals Yet
Mathematics

krissy7606:
Each marble bag sold by Ivanna's Marble Company contains 7 green marbles for every 5 red marbles. If a bag has 45 red marbles, how many gr…
 updated one year ago
 8 replies
 No Medals Yet
Mathematics

Rachel123:
How to find the sum of k^2/k! from 0 to infinity?
 updated one year ago
 10 replies
 2 Medals
Mathematics

xV1nc3nTx:
how am i supposed to do this if you can please help 2(x + 4) − (x + 1) = 10
 updated one year ago
 6 replies
 2 Medals
Mathematics

jenni4r:
100 stickers are evenly divided between 16 children. How many stickers will each child get?
…
 updated one year ago
 3 replies
 No Medals Yet
Mathematics

Rachel123:
How do I find the limit to a sequence an=r^n/n! ?
…
 updated one year ago
 3 replies
 1 Medal
Mathematics

0214:
If A = {1, 2, 3, 4, 5} and B = {3, 6, 9, 12, 15}, what is A union B?
 updated one year ago
 1 reply
 No Medals Yet
Mathematics

Rachel123:
Prove n^(1/n)>=1 for n=1,2.....?
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

Rachel123:
Does span(S1 intersect S2)=Span(S1) intersect Span(S2)?
 updated one year ago
 5 replies
 1 Medal
Mathematics

Rachel123:
If I've found all roots to the equation x^8=1, how does that help me to write x^8+1 as the product of four quadratic factors?
…
 updated one year ago
 2 replies
 No Medals Yet
Mathematics

Rachel123:
In linear algebra, if you have
Span(S1) = {(0,1,0), (1,2,3)}
Span(S2)={(1,0,0),(0,0,1)}…
 updated one year ago
 5 replies
 1 Medal
Mathematics

Rachel123:
Hi, could someone please explain the solution given to question 4 in here: https://docs.google.com/viewer?a=v&q=cache:hnmAe62b8gJ:www.bmoc.…
 updated one year ago
 5 replies
 1 Medal
Mathematics