Lines s, t, and u are perpendicular bisectors of the sides of fgh and meet at j. if jg = 2x + 2, jh = 2y - 4, jf = 8 and hi = 3z - 3, find x, y, and z.

question 1 options:

a) x = 5, y = 2, z = 2

b) x = 2, y = 7, z = 2

c) x = 3, y = 6, z = 4

d) x = 6, y = 3, z = 4

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:

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