Choose the correct answer from the given four options: In an AP, if d = –4, n = 7, an = 4, then a is * 6

20

7

28​

The physical fitness of an athlete is often measured by how much oxygen the athlete takes in (which is recorded in milliliters per kilogram, ml/kg). the mean maximum oxygen uptake for elite athletes has been found to be 60 with a standard deviation of 7.2. assume that the distribution is approximately normal.

What’s the domain of this function? fast

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