A petri dish is simply a circle; thus, we use the formula of the area of the circle which is <span>πr^2.
Given r = 40 mm
A = </span>π(40)^2 = <span>5026.55 sq. mm
</span>
Population density = bacteria count / area
PD = 2,100 / <span>5026.55
PD = </span><span>0.417782 bacteria / mm sq.
Therefore, the answer is approximately 0.418 </span><span>bacteria per square millimeter.</span>
Answer:
There are 5 faces, 5 vertices, and 8 edges, so all of that together is 18
Answer:
New York
Step-by-step explanation:
Y=1x because if you draw it on the line you’ll see the linear variation
Answer:
35.19
Step-by-step explanation:
6.23+7.45=13.68
13.68+8.3=21.98
21.98+8=29.98
29.98+5.21=35.19
