A community for students. Sign up today!
Here's the question you clicked on:
 0 viewing
 2 years ago
The formula P=0.64x^20.049+2 models the approx population P, in thousands, for a species of fish in a local pond, x yrs after 1997. During what yr will the population reach 42,568???
2004,2005,2006, or 2007
 2 years ago
The formula P=0.64x^20.049+2 models the approx population P, in thousands, for a species of fish in a local pond, x yrs after 1997. During what yr will the population reach 42,568??? 2004,2005,2006, or 2007

This Question is Closed

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.2put P=42,568 and solve for x, and then add x to 1997 to find the answer

Courtney.soden
 2 years ago
Best ResponseYou've already chosen the best response.0So solve for P first than add x to 42,568?

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.2noo, the population is equalto 42,568 in a certain year, that's what we want to find... that year. to get that year, we know that x is the number of years after 1997 for which the population will be equal to 42,568... so we find x and add it to 1997 and voila, we know the year. :) is that making any sense so far?

Courtney.soden
 2 years ago
Best ResponseYou've already chosen the best response.0so 42,568=0.64x^20.049x+2 is the equation right? I think thats what I understood by what you just wrote

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.2exactly... then we find x

Courtney.soden
 2 years ago
Best ResponseYou've already chosen the best response.0I got x as 42,29,and 29

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1no that is not the right equation i don't think, because it gives the population in thousands

Courtney.soden
 2 years ago
Best ResponseYou've already chosen the best response.0Well Mr. Satellite73 help plz [=

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1try this one \[ 42.568 = 0.64 x^20.049+2\]

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1http://www.wolframalpha.com/input/?i=42.568%3D0.64x%5E20.049%2B2

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1looks like the answer is closest to x = 8 so 8 years after 1997

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.2I think she missed the x after the 0.049 in her original question cos i noticed she wrote that in her reply.... so that makes it a quadratic, but i could be wrong

Courtney.soden
 2 years ago
Best ResponseYou've already chosen the best response.0Yeah I missed the x after 0.049x

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.2and btw why did u write 42.568 <<< and not 42,568 ?

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1because it says it gives the answer in thousands so if you get P = 4 that means 4,000

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1the answer appears to be 8 i redid it http://www.wolframalpha.com/input/?i=42.568%3D0.64x%5E20.049x%2B2

sasogeek
 2 years ago
Best ResponseYou've already chosen the best response.2yeah it is, i solved it and it's approximately 8 so yeah :)

satellite73
 2 years ago
Best ResponseYou've already chosen the best response.1wolfram says 8 when i redid it

Courtney.soden
 2 years ago
Best ResponseYou've already chosen the best response.0Gracias you guys I loved the help
Ask your own question
Ask a QuestionFind 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.