The sphere has surface are of 900π m².
Step-by-step explanation:
Given,
Diameter = d = 30m
Radius = 
Surface area of sphere = 

The sphere has surface are of 900π m².
Keywords: Surface area, multiplication
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3/4 because it’s parallel so it has the same slope. It just doesn’t pass through the same line.
You have the formula already, just plug in 30 for s (speed) and solve for d (distance).
Answer:
B has a smaller initial population of 500
Step-by-step explanation:
Given
See attachment for complete question
Required
The bacteria with the smaller initial population
The initial population is at x = 0
For bacteria A;
when 
For bacteria B, we have:

Substitute 0 for x



So; when x = 0
and 
Because; 500 < 600
We can conclude that B has a smaller initial population of 500
Speed is computed by dividing total distance by total time.
Speed = Total Distance / total time
From the above formula, we can derive the formula of time and distance.
Time = Distance / Speed
Distance = Speed x time