Acarpenter must cut a 10 foot board into two pieces to build a brace for a picnic table. if one piece is to be four times as long as the other piece how long should each piece be

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idk the answer i want to say 10 but then it would be equal so try 9 but then yeah so yeah we love edgen

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

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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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