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anonymous
 one year ago
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 halflife 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
anonymous
 one year ago
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 halflife 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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Janu16
 one year ago
Best ResponseYou've already chosen the best response.13.  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

Janu16
 one year ago
Best ResponseYou've already chosen the best response.11. 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

anonymous
 one year ago
Best ResponseYou've already chosen the best response.0thanks 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

Janu16
 one year ago
Best ResponseYou've already chosen the best response.1what does that up arrow mean?
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