Friday
October 24, 2014

Posts by pk


Total # Posts: 14

math
0.1818
May 19, 2013

Math
268
May 5, 2013

Algebra2
Square both side first 2x)^1/2^2=(x-4)^2 2x=x^2-8x+16 subtract 2x from both sides x^2-10x+16 now FOIL (x-8)(x-2)
March 13, 2012

math magic box
8 1 6 3 5 7 4 9 2
March 1, 2012

statistics
The population standard deviation (σ) for a standardized achievement test that is normally distributed is 8.    a.) Calculate the standard error of the mean if you draw a random sample of 50 test scores.  Show your work for full credit .  . ...
February 21, 2012

Math - Expected Value
If you select a chip at random from a jar with 7 red, 2 green and 1 blue chip. If the chip you pick is red, you win $10,000, if it is green, you wil $20,000 and if it is blue, you lost $100,000. What is your expected value of this game?
January 9, 2012

school
determine the final concentration of a 20.ml 5.M NaCl solution if 30Mml of water has is added to the solution?
December 11, 2011

Chemistry
determine the final concentration of a 20.ml 5.M NaCl solution if 30Mml of water has is added to the solution?
December 11, 2011

science
Describe the plant life, animal life, and geology of the ecosystem in the area in which you live. I live in Northern Illinois. What populations and communities are present? How dependent is your community on this ecosystem? What are the limiting factors of the ecosystem?
June 29, 2011

English
looks good and sounds great, not bad for not being good with writing and English.
March 24, 2011

11th grade
what does the value of G=6.67e-11 tell us about the force of gravity
October 17, 2010

physics
actually, 0.25 with sig figs is 0.3 m/s^2, which is the correct answer.
March 20, 2009

physics
since acceleration = Net force/ mass, plug in 25 N for force and 100 kg for mass you will get 0.25 m/s^2
March 20, 2009

Health
Can you name healthy snacks that start with Q, U and X? Thanks. quick milk uberlicious milk x-ray milk
August 30, 2006

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