I don’t understand question 8 a and b. Could someone please explain?

Mathematics

1 answer:

Dima020 [189]3 years ago

3 0

Answer:

The answer is totaly A bevause it says in the paper right there and exd

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Answer:

$area = 200.96 \: {units}^{2} \\ circumfrence = 50.24 \: units$

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topjm [15]

Answer:

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Step-by-step explanation:

The z score is used to determine the number of standard deviations by which the raw score is above or below the mean. If the z score is positive then the z score is above the mean while for a negative z score implies that it is below the mean. The z score is given by:

$z=\frac{x-\mu}{\sigma}$