Aplayground is to be built in the shape of a rectangle with a length that is 5 feet less than twice its width. one of the shortest sides of the playground is next to a wall. the plan is to use 440 ft. of fencing around the playground. what are the dimensions of the playground? (write and solve an equation).

There is 3 dimension of each object.

The 3 dimensions are: width, length, and depth

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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: