Given:
The growth of a sample of bacteria can be modeled by the function

where, b is the number of bacteria and t is time in hours.
To find:
The number of total bacteria after 3 hours.
Solution:
We have,

Here, b(t) number of total bacteria after t hours.
Substitute t=3 in the given function, to find the number of total bacteria after 3 hours.



Therefore, the number of total bacteria after 3 hours is 119.1016.
Answer:
12-3 lily has 9 cats
Step-by-step explanation:
Answer:
1.7 units
Explanation:
The length of an arc is calculated using the formula below:

Substitute the given values of θ and r:

The length of the arc is 1.7 units.
Answer:
Radius: 8.5 inches
Area ≈ 226.98
Circumference ≈ 53.42
Step-by-step explanation:
2πr = formula for circumference of a circle
πr² = formula for area of a circle
radius of a circle = (1/2)d
50 is tens and 150 is hundreds