# Posts by Nima

Total # Posts: 19

Riddle
Mirror or Reflection

Service

Probability
The answer can be calculated by Central Limit Theorem. You need to find P(sn=>3) where sn= x1+x2+....+xn. So, to approximate this sum, we just need to calculate P(zn=>z) where zn=sn/(n^1/2)*standard deviation, and z= 3/2.0364. Finally, because we are dealing with the CDF...

Probability
Solution of question 2: (15*((2^6)-2))/(6^6)=0.0199 Hints: See this problem as a binary string. For example, fix a set {1,2}, then consider them as binary string {0,1}. So we know that 2^6 possible outcomes exist, which 2 out of them are {000000} and {111111}. Finally, (2^6)-2...

math
Now, I understand, thank you,thank you very much, Ms. Sue.

math
I'm trying to solve these equations but it seems I didn't get the correct one. please help if you still can. to solve the equations: 1. 0.4 =32z 2. 8n - 2 = 14 3. 2 (x + 3) = 4 Thanks a lot.

algebra
thank you very much, Steve, Ms. Sue.

algebra

math
thank you Graham.

math

algebra
How do I translate this to an equation? "A number added to -11 amounts to -22. Thanks for your help.

college algebra
Thank you so much Steve.

college algebra
Please help. Merina is moving out of her mom's house to her new house which is 14 miles away to reach her new house. Truck A offers a flat fee of \$25 and \$.40 per mile. What is the proper equation to solve the problem.

algebra
Thank you so much, Ms. Sue. appreciate it very much.

algebra

pretty sure it is 5.6 meters

math
lol u think i care

math
There are 100 runners, each given a distinct bib labeled 1 to 100. What is the most number of runners that we could arrange in a circle, such that the product of the numbers on the bibs of any 2 neighboring runners, is less than 1000?

Math 6
Perimetetr

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