B) 1) If 21 and 22 form a linear pair of angles and mZ1 =mZ2, find the measures of the angles.
2) If the difference in the measures of a linear pair of angles is 42°, find the measures of the
angles.
3) Two angles form a linear pair. If the measure of one angle is five times the measure of
the other, what are the measures of the angles?

the answer is 375 miles

step-by-step explanation:

answer: -8.2562234e+13

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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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