Iwill give brainliest! create an equation in slope-intercept form with a slope of 3 and y-intercept of -25

slope intercept form

y=mx+b

m=slope

b=y-intercept

given that slope is 3 and y intercept is -25

m=3 and b=-25

y=mx+b

y=3x+(-25)

y=3x-25 is answer

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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: