Abcd is a rectangle.

use the diagram to answer the questions.
the length of ab is .
the length of bc is .
the length of ac is .

The length of AB is 12.

The length of BC is 5.

The length of AC is 13.

Hence, the correct answers are:

- 12

- 5

- 13

Step-by-step explanation:

Edge2020 ^_^

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:

my dear correct answer is option number 3