g rectangular boxes with a volume of 8 ft3 are to be made of three materials. the material for the bottom of the box costs $12 per ft2 , the top of the box costs $4 per ft2 and the material for the sides costs $10 per ft2 . what are the dimensions of the box that minimizes the cost of the box

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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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step-by-step explanation:

this may not be at all, but i use the same website you're using for school, and if i'm stuck doing one of these i try to look for it on the section.

i’m sorry but i don’t know sorry

just keep asking questions until you have a better understanding.

step-by-step explanation: