Answer:
The population of city is 10 millions in year 2015 that is 5 years after 2010.
Step-by-step explanation:
We are given the following information in the question:
The population of a city, P, in millions, is a function of t.
where P is the population of city in millions and t is the number of years after 2010.
We have to interpret the meaning o the statement f(5) = 10.
Interpretation:
Comparing the relation we get,
It means that the population of city is 10 millions in year 2015 that is 5 years after 2010.
Using the given information we found that the equation of the parabola is:
y = (-4/9)*(x - 3)^2 + 5
And its graph is below.
<h3>
How to get the equation of the parabola?</h3>
For a parabola with vertex (h, k), the equation is:
y = a*(x - h)^2 + k
Here the vertex is (3, 5), so the equation is:
y = a*(x - 3)^2 + 5
And the y-intercept is y = 1, this means that:
1 = a*(0 - 3)^2 + 5
1 = a*9 + 5
1 - 5 = a*9
-4/9 = a
So the parabola is:
y = (-4/9)*(x - 3)^2 + 5
And its graph is below.
If you want to learn more about parabolas, you can read:
brainly.com/question/1480401
Answer:
5/9
Step-by-step explanation:
y2-y1/x2-x1 = 5/9
PH = - log [H+]
pH = - log (0.000316227)
pH = 3.5
Answer:
Three multiplied by X equals 42.
Also, not sure if you need this, but, X=14
