Answer:
C. is the correct answer.
Answer:y=-1.6x+15.4
Step-by-step explanation:
Answer:
10
Step-by-step explanation:
The 3 different points form a right angle so we us Pythagoras theorem:-
If distance is d:-
d^2 = 1^2 + 1^2
d = sqrt 2 or 1.414 miles to nearest thousandth
Exponential Growth
Some real-life events grow in such a way that they can be modeled as an exponential function, given as:
Where C(t) is the future value of the measured variable, Co is its initial value, r is the growth rate and t is the time.
We are given the following data:
Initial amount: Co=40 bacteria
Growth rate: 1 + r = 3
The bacteria triples every 4 days, thus t is the number of periods of 4 days.
Thus the model is:
We can solve the equation
1 + r = 3
And get r = 2. Rewriting the equation:
We are required to find the number of bacteria after 20 days, that is, after 20/4 = 5 periods of 4 days. Substituting:
Calculating:
The colony would have 9,720 bacteria after 20 days