Answer:
≈ 12.57 units squared
Step-by-step explanation:
The area of a circle is denoted by: 
, where r is the radius.
Remember that diameter is twice the radius, so since the diameter equals 4, we know that the radius r = 4/2 = 2.
Now, plug this in: 
We can round 4pi to 12.57 units squared.
Hope this helps!
The exponential function that represents the number of cells present at x hours is y = 100(2)ˣ
<h3>What is an
exponential function?</h3>
An exponential function is in the form:
y = abˣ
Where a is the initial value and b is the multiplication factor.
Let y represent the number of cells after x hours.
From the table, at point (0, 100):
100 = ab⁰
a = 100
At point (1, 200):
200 = 100b
b = 2
The exponential function is y = 100(2)ˣ
Find out more on exponential function at: brainly.com/question/12940982
Im pretty sure it would be $60. If im wrong im sorryyyyy
We have two points:
The point slope form of the line:
Substitute
Answer:
