What is the area of the figure composed of a parallelogram, a square, and a rectangle? 10 in.
3.5 in.
4 in.
6 in.
12.5 in.

4038

step-by-step explanation:

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(w – 2.5)(w + 2.5)

(–4v – 9)(–4v + 9)

step-by-step explanation:

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: