During a series of 100-meter races, the times of the runners are normally distributed with a mean of 12.5 seconds and a standard deviation of 0.3 seconds. Find the percent of runners that have a time between 11.6 seconds and 12.8 seconds. Explain how you got your answer. part 2. Find the probability that a randomly selected runner has a time greater than 12.8 seconds and less than 13.4 seconds

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Step-by-step explanation:

the answer is:

the lateral area is equal to

to find the lateral area of the square pyramid, first we need to find the perimeter of the base, and then, find the lateral area using the following formulas:

where,

s, is the base length

slant height, is the height of a the side of the pyramid

we are given:

now, calculating the perimeter of the base, we have:

then, calculating the lateral area:

hence, we have that the lateral area is equal to

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