A community for students.
Here's the question you clicked on:
 0 viewing
mariadelia27
 one year 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
mariadelia27
 one year 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

This Question is Open

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1you shoud try to ask it in chemistry section

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0ok thanks it scause i really need this answer

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1do you have the formula?

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0i need to round to the nearest hundreds too

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1what is the unity of k?

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.0What does k represent?

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0a positive constant that depends on the substance itself and on the units used to measure time

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.15=10*e^(Kt), but what unity of time? seconds^1?

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0there a picture of the question

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1and probally the formula is e^(kt)

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0did you see the picture

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.0ya its a diff question :)

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0my bad ill got teh wrong one

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

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0but i dont know how to solve it either .

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0can you help me please i really need it

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1dw:1372309018511:dw

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0so the answer is 0,5

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0its exponoential decay thats the section were doing

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1i use that k

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0it said its wrong .

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1we have to know thr unity of k

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.0What did you put the answer as?

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.0sorry I am not making sense. What did you enter as your answer?

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.0Its to the hundredths place so it should be 5.12

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1try 1871.15 days

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.1im supposing k is in years

swissgirl
 one year ago
Best ResponseYou've already chosen the best response.0Ohhhh yaaaaa that makes more sense actually

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0just that its 53% not 51 %

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0this is another question can you guys help with this one

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0you guys help me i really did to passs this class tomorrow is my last day

mariadelia27
 one year ago
Best ResponseYou've already chosen the best response.0are you guys there ?

RaphaelFilgueiras
 one year ago
Best ResponseYou've already chosen the best response.16733.44 years
Ask your own question
Sign UpFind more explanations on OpenStudy
Your question is ready. Sign up for free to start getting answers.
spraguer
(Moderator)
5
→ View Detailed Profile
is replying to Can someone tell me what button the professor is hitting...
23
 Teamwork 19 Teammate
 Problem Solving 19 Hero
 Engagement 19 Mad Hatter
 You have blocked this person.
 ✔ You're a fan Checking fan status...
Thanks for being so helpful in mathematics. If you are getting quality help, make sure you spread the word about OpenStudy.