The box is a square. it's perimeter is 48 inches. the pizza has a circumference of 37.68 inches. what is the difference in the area of the pizza and the area of the pizza box? round to the nearest tenth

area of box:

48/4 = 12

12^2 = 144 square inches

area of pizza:

area = C^2/4π

37.68^2 = 1419.7824/12.56 = 113.04 square inches

difference : 144 - 113.04 = 30.96 inches, rounded to nearest tenth = 31.0 inches

plants store their excess carbohydrate in the form of starch so that it could be used as energy source later on. the excess carbohydrate is converted into starch in the plastid i.e. chloroplast & this process occurs in the presence of sunlight. it is an insoluble polymer of glucose which gets stored in cell organelles named as amyloplasts. in some plants, starch is also stored in roots and embryos.

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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step-by-step explanation: