Posts by Jaya
Total # Posts: 15
Two simple of sizes 8&10 are drawn from two normally distributed population having variance 20 and 36 respectively. Find the probality that the variance of the first sample is more than twice the variance of the second sample
January 19, 2016
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1. Question : In a Presidential election, the candidate must Student Answer: win both the popular and electoral vote. win the Supreme Court vote. CORRECT win a minimum of 270 electoral votes. win majorities in ¾ of the states. Instructor Explanation: The answer can be ...
February 3, 2013
just distribute, then combine like terms: if it helps break it down: 4(7x),4(-1)=3(2x),3(1)=-4(x),-4(6) so then you have: 28x-4=6x+3-4x-24, then just combine like terms, you goal is to isolate the variable
June 11, 2011
You just use the equation vf=vi+at. Your initial velocity would be zero since it's starting from rest, your acceleration in this case would be 4.8 m/s^2, and your time would be 2.3 seconds. Your answer will be 11.04 m/s.
January 22, 2011
A: you can either look at the properties table or use -74.9kJ/mol= x + 92.3 kJ/mol and solve for x which is -167.16...... juse the equation deltaH= Sum deltaH of products - sum deltaH of reactants idk how to do B yet
November 1, 2010
if the mass of protons are halved and that of neutrons doubled to that of the actual values, what percentage change would have been found in the atomic mass of chromium whose actual atomic mass is 52.
May 5, 2010