Need on 3

1) what is the slope of a line parallel to the line 2x-3y=6?
a) 2/3
b) 1
c) 4/3
d) 1/5

2) which answer is in slope-intercept form for 4x-9y= -36?
a) 9y=-4x-36
b) 9y=4x+36
c) y=4/9x+4
d) y= -4/9x-4

3) which point-slope form passes through the point (-2,1) and has slope 3?
a) (y-1)=3(x+2)
b) (x-2)=3(y-1)
c) (x+2)=3(y-1)
d) (y+1)=3(x-2)

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.

click to let others know, how is it

0.0

0 votes

1

report

read more on -

step-by-step explanation:

570, the answer is 570, hope it