At Westonci.ca, we provide clear, reliable answers to all your questions. Join our vibrant community and get the solutions you need. Experience the ease of finding reliable answers to your questions from a vast community of knowledgeable experts. Experience the ease of finding precise answers to your questions from a knowledgeable community of experts.
Sagot :
Answer: is 84.78 mm^2
Explanation:
we will first find out their areas, the area to be found is of a circle [tex]\pi[/tex]R^2
for the first one,
R=radius
pi=3.14
so,=3.14*(3mm*)^2
=28.26mm^2
for the second one
=3.14*(6mm*)^2
=113.04mm^2
their differences are equal to 113.04 - 28.26
=84.78 mm^2
Given the values that are supplied in the question, the difference in the bacteria-free area between is 21.2 mm^2.
What is disinfection?
The term disinfection has to do with the ability of the substance to inhibit the growth of organisms as seen by the area of each concentric circle.
In this case, the difference in the bacteria-free area between disinfectant A and disinfectant B is;
3.142 * (6/2)^2 - 3.142 * (3/2)^2
= 28.3 - 7.1
=21.2 mm^2
Learn more about disinfection:https://brainly.com/question/14781146?
#SPJ2
We appreciate your time. Please revisit us for more reliable answers to any questions you may have. Thank you for your visit. We're committed to providing you with the best information available. Return anytime for more. We're dedicated to helping you find the answers you need at Westonci.ca. Don't hesitate to return for more.