Wednesday
April 23, 2014

Posts by pk


Total # Posts: 14

math
0.1818

Math
268

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)

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

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 .  .  ...

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?

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

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

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?

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

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

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

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

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

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