Which table has a constant of proportionality between yyy and xxx of \dfrac{1}{6} 6 1 start fraction, 1, divided by, 6, end fraction? Choose 1 Choose 1 (Choice A) A xxx yyy 151515 555 19\dfrac1219 2 1 19, start fraction, 1, divided by, 2, end fraction 6\dfrac126 2 1 6, start fraction, 1, divided by, 2, end fraction 363636 121212 (Choice B) B xxx yyy 121212 222 13\dfrac1213 2 1 13, start fraction, 1, divided by, 2, end fraction 3\dfrac123 2 1 3, start fraction, 1, divided by, 2, end fraction 242424 141414 (Choice C) C xxx yyy 181818 333 272727 4\dfrac124 2 1 4, start fraction, 1, divided by, 2, end fraction 333333 5\dfrac125 2 1 5, start fraction, 1, divided by, 2, end fraction

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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:

11.2

step-by-step explanation:

when doing tangent the tangent of the angle is equal to the opposite side from the angle over the adjacent side to the angle.

tan43 = x / 12

move 12 over by multiplying each side by 12

12tan43 = x

x = about 11.2

12.4, 12.387, 12.26, 12.252, 6.241, 6.2, 6.015, 6.009, 1.411, 1.2, 1.056, 1.007, 0.31,   0.13, 0.5, 0.04

step-by-step explanation:

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