Answer:
a) 
b) 
So for this case the answer would be 13.347 years, the population will be 28.3 million and ye year would be 2000+13.347 and that would be approximately in 2014
Step-by-step explanation:
For this case we assume the following model:

Where t is the number of years after 2000/
Part a
For this case we want the population for 2000 and on this case the value of t=0 since we have 0 years after 2000. If we rpelace into the model we got:

So then the initial population at year 2000 is 23.1 million of people.
Part b
For this case we want to find the time t whn the population is 28.3 million.
So we need to solve this equation:

We can divide both sides by 23.1 and we got:

Now we can apply natural log on both sides and we got:

And then for t we got:

So for this case the answer would be 13.347 years, the population will be 28.3 million and ye year would be 2000+13.347 and that would be approximately in 2014
Answer:
6. 5x - 2
7. 13in
8. 3a + 20
9. 21 1/2
explanation:
6. add all of the values together
7. plug in 3 into the answer from #6 5(3) - 2 and you will get 13
8. add all values
9. plug in 1/2 into the answer from #8 3(1/2) + 20 and you will get 21 1/2
Answer:
5.5+7.25−5.5−7.25 = 0
Step-by-step explanation:
To be honest, you shouldn't have to show work for an equation like this. But this is the answer. Hope it helped.
Correct formula is y = kx, where k is the "constant of proportionality."
If y = 9 when x = 2, then 9 = k(2), or k = 9/2.
Then y = (9/2)x.
If x = 3, y = (9/2)(3) = 27/2 (answer)
It would be three feet. Hope this helps.