anonymous 5 years ago 2) The population P in 1999 for a state is given along with r, its annual % rate of continuous growth P=10 Millions, r = 2.6% Estimate the population in 2019 = ?

1. anonymous

2. anonymous

yes still interested

3. anonymous

By the way, did you realize that the phrasing of yesterdays problems were not good, and I conceived something which was not correct

4. anonymous

For that problem on cumulative quadratic equation, .....

5. anonymous

It meant that the equation itself provided the cumulative result

6. anonymous

yes

7. anonymous

So our result would be f(5)-f(4)

8. anonymous

I am sorry, but the phrasing was too poor, and I didn't get it at all

9. anonymous

sorry.. ok can you help me with this one?

10. anonymous

2) The population P in 1999 for a state is given along with r, its annual % rate of continuous growth P=10 Millions, r = 2.6% Estimate the population in 2019 = ?

11. anonymous

Did you actually understand the problem ?

12. anonymous

I mean did you understand what its saying?

13. anonymous

no because i tried to use the formula 10e^.026(20) yet I get the wrong answer

14. anonymous

Before using the formula you must understand what its being said...

15. anonymous

What is the precise meaning of the term "given along with r"

16. anonymous

time

17. anonymous

?

18. anonymous

I don't know, but I feel that it could have been better phrased

19. anonymous

Is it from some book?

20. anonymous

2) The population P in 1999 for a state is given along with r, its annual % rate of continuous growth P=10 Millions, r = 2.6% Estimate the population in 2019 = ? r is the 2.6

21. anonymous

r is the decimal notation

22. anonymous

Hey! I have the feeling you are actually phrasing the problem, it can't be from some printed material. Am I right?

23. anonymous

thats what it says in the book, then it says write the formula PE^rx where r is the decimal notation

24. anonymous

and that models the population in millions of years x after 1999

25. anonymous

Listen the problem can't be solved if I don't understand the english. You see, I can't make out any thing from this part "its annual % rate of continuous growth P=10 Millions, r = 2.6% ". This is some kind of broken sentence. It makes no sense .

26. anonymous

then it says the population in 2019 will be?

27. anonymous

just a min I will write he whole thing and paste it correctly

28. anonymous
29. anonymous

2) The population P in 1999 for a state is given along with r, its annual % rate of continuous growth P=10 Millions, r = 2.6% - use the formula f(x) = PE^rx, where r is in decimal notation, that models the population in millions x years after 1999. The population in 2019 will be approximately ? million

30. anonymous

Tell me what you wanted to say

31. anonymous

I did it on the calc again

32. anonymous

I did it like this 10e^(.037(20) and it came out with 17

33. anonymous

I used extra parenthasis

34. anonymous

(.037(20))

35. anonymous

Yes, it is something around 16.8 ............

36. anonymous

So is that ok?

37. anonymous

I think so

38. anonymous

how did you get 16.8?

39. anonymous

So any more problem?

40. anonymous

I just calculated using the calculator, thats it

41. anonymous

how did you do it cause i got 17?

42. anonymous
43. anonymous

44. anonymous

$A=10\times e^{.026\times 20}=10 e^{.52}=16.82$ rounded. so 16.82 million