Cesar, Carlos, David, and Edwin decided to have a push-up contest. The following table describes the push-up speeds of the four
boys. Which boy has the fastest speed?
1 answer:
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Answer:
The answer is
Step-by-step explanation:
Assuming the snowball is a perfect sphere, then if A denotes the surface area and D the diameter then:
Differentiating wrt r we have:
We are told that and we want to find
By the chain rule we have:
∴
∴
When D=10 then
The sign (-) shows that the D is decreasing.
Answer:
5% did not pass inspection
Step-by-step explanation:
Given
Required
Determine the percentage of parts that didn't pass inspection.
First, we need to calculate the number of those that didn't pass inspection.
Next, we calculate the percentage as follows:
The above formula is derived by dividing the number of parts that didn't pass inspection by the total machine inspected, then multiplied by 100%
So:
<em>5% did not pass inspection</em>