Answer:
Step-by-step explanation:
a. This is a decay function, since the final value (A) gets smaller and smaller as the days pass by.
b. The bacteria is decreasing by 75% per day exponentially.
c. In order to calculate the amount of bacteria in a week we simply substitute the variable t for 7 (7 days in a week) and solve for A
A = 200(0.75)^7
A = 26.7 bacteria after 1 week
d. In order to calculate this we need to substitute the variable A with 100 and solve for t
100 = 200(0.75)^t ... divide both side by 200
0.5 = 0.75^t
= t
2.4 = t
It will be half the initial amount after 2.4 days.
Answer:
4pi/15=θ - i think
Step-by-step explanation:
S = r*θ
r=9
s=12pi/5
12pi/5=9*θ
12pi/45=θ
4pi/15=θ
Given:
The polynomial function is
Yuri thinks that 
is a root of the given function.
To find:
Why cannot be a root?
Solution:
We have,
If is a root, then the value of the function at is 0.
Putting 
in the given function, we get
Taking LCM, we get
Since the value of the function at is not equal to 0, therefore, is not a root of the given function.
Answer:
505ft below the surface
Step-by-step explanation:
subtract 575 from 625 and then add 455 to get your final answer.
Answer: B) James Madison
Step-by-step explanation:
