Matthew has been observing 10 bacteria in a petri dish for his science class,If the bacteria population doubles every 12 hours, how many bacteria will be in the dish after 2 full days?A. 20 bacteria B. 40 bacteria C. 80 bacteria D. 160 bacteria
The element lawrencium has a half-life of 10 hours. What fraction of 1 ounce of lawrencium will remain after 4 days 4 hours? A.1/50 B.1/60 C.1/512 D.1/1024
Alexandre bought a car for $8,000 in 2005. The value of the car declines at a rate of 7.1% every year Alexandre owns it. If he sells the car in 2009, what will be the approximate value of the car
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so its 1/1024 oz
3. - 7.1% every year, so 0.929 x 8000 = 7432 year 2006
year 2007 0.929 x 7432 = 6904.32
year 2008 0.929 x 6904.32 = 6414
year 2009 0.929 x 6414 = 5958.72
1. two days would be 48 hours which means it would double 4 times
So the answer would be 2^4 (which is 16) times the original 10 - making a total of 160
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thanks do you thinks you can answer this one as well------------ Freddy was asked to write the following expression in simplest form: 3^12x3^/3^-3 What is the simplest form of the expression? A.3^19 B.3^13 C.3^-13 D.3^-16