Amy glued purple ribbon around the edge of her circular mirror. She used 63 inches of ribbon. This was just enough to go once around the mirror. What
is the approximate diameter of her mirror?

according to egenuity the answer is

step-by-step explanation:

d. 344.22

hello,

b) 62.47% of the students are between 14 and 18 years old.

step-by-step explanation:

mean = 15 and standard deviation = 2

student between 14 to 18

formula used z-score

for age 14 , z score

using z-table , p(z> -0.5)=0.3085

for age 18 , z score

using z-table , p(z< 1.5)=0.9332

p(-0.5< z< 1.5)=0.9332-0.3085 = 0.6247

thus, 62.47% of the students are between 14 and 18 years old.

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answer: i dont know but if you try hard you will get it right : )

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