Line AB has the endpoints A(−6,−7)and B(−8,−16)What are the x- and y-coordinates of point C that partitions AB at a 1:5 ratio. Where is point C? A. (−1.5,−9.5)
B. (−8,−11.3)
C. (−11.3,−2.3)
D. (−6.3,−8.5)

the discriminant is 64 + 4*1*12 = 112

this is prime.

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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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