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Found this (probably through your site lol) not long ago because I was stumped on how to help my dd with her algebra work. This site gave detailed, step-by-step solutions and it all made sense.
Thanks!!!
I use a product that I buy at 25% strength. I have been offered the same product (at a big discount) at 70% strength. I use this product in various formulations in different quantities.
Somehow I don’t think that this is a simple rule of dividing 25 by 70 and then use the result (35.7%). Eg if I currently use 80 kg of 25% strength, would I then use 80 x 35.7% = 28.5kg of the 70% strength? This does not look right. Maybe I cannot clarify the equation in my mind correctly!!
Your Help is appreciated
Soil pollution at a disused industrial site is assessed.
The probability the site is polluted with organo-phosphates is 0.12;
The probability the site is polluted with lead is 0.10.
The probability the site is polluted with organo-phosphates or lead is 0.20;
Find the probability of the following:
a) The site is polluted with organo-phosphates, but not with lead.
b) The site is polluted with lead, but not with organo–phosphates.
c) The site is polluted with both organo-phosphates and lead.
d) The site is not polluted with any of the two pollutants.
e) The site is polluted with lead given it is polluted with organo-phosphates.
f) Are the events “polluted with lead” and “polluted with organo-phosphates” independent? Explain.
Please help
Help !!
What is the package factor for spheres in a spherical container ? We assume that the spheres are microscopic compared to the container. It does NOT equal Kepler’s conjecture which is valid for tetrahedral containers only !!
Package factors for:
tetrahedral container = pi/sqr.18=0,78048…
rectangular container = pi/sqr.20,25=0,69813…
spherical container = ???
Who can answer this question ?
A basketball is dropped from a height of 32 feet. Each time it bounces is rebounds 60% of its original height on each bounce. How high will it bounce on the 8th bounce?