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A 10 gram sample of a substance that's used to detect explosives has a kvalue of 0.1353.
Find the subtance's halflife, in days.round to the nearest hundreds
 10 months ago
 10 months ago
A 10 gram sample of a substance that's used to detect explosives has a kvalue of 0.1353. Find the subtance's halflife, in days.round to the nearest hundreds
 10 months ago
 10 months ago

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RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
you shoud try to ask it in chemistry section
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
ok thanks it scause i really need this answer
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
do you have the formula?
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
n is moles?
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
i need to round to the nearest hundreds too
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
what is the unity of k?
 10 months ago

swissgirlBest ResponseYou've already chosen the best response.0
What does k represent?
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
a positive constant that depends on the substance itself and on the units used to measure time
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
5=10*e^(Kt), but what unity of time? seconds^1?
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
there a picture of the question
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
and probally the formula is e^(kt)
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
did you see the picture
 10 months ago

swissgirlBest ResponseYou've already chosen the best response.0
ya its a diff question :)
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
my bad ill got teh wrong one
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
if k is in days^1 just solve 5=10*e^(kt), and you will find t
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
but i dont know how to solve it either .
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
can you help me please i really need it
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
dw:1372309018511:dw
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
so the answer is 0,5
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
its exponoential decay thats the section were doing
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
i use that k
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
it said its wrong .
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
we have to know thr unity of k
 10 months ago

swissgirlBest ResponseYou've already chosen the best response.0
What did you put the answer as?
 10 months ago

swissgirlBest ResponseYou've already chosen the best response.0
sorry I am not making sense. What did you enter as your answer?
 10 months ago

swissgirlBest ResponseYou've already chosen the best response.0
Its to the hundredths place so it should be 5.12
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
try 1871.15 days
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
im supposing k is in years
 10 months ago

swissgirlBest ResponseYou've already chosen the best response.0
Ohhhh yaaaaa that makes more sense actually
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
just that its 53% not 51 %
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
this is another question can you guys help with this one
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
you guys help me i really did to passs this class tomorrow is my last day
 10 months ago

mariadelia27Best ResponseYou've already chosen the best response.0
are you guys there ?
 10 months ago

RaphaelFilgueirasBest ResponseYou've already chosen the best response.1
6733.44 years
 10 months ago
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