The distribution of SAT scores of all college-bound seniors taking the SAT in 2014 was approximately normal
with mean u = 1497 and standard deviation o = 322.
A certain test-retake preparation course is designed for
students whose SAT scores are in the lower 25% of those
who take the test in a given year.
What is the maximum SAT score in 2014 that meets
the course requirements?

step-by-step explanation:

given that ab is divided into equal parts as

ac, cd, de, ef, fg, gh, hi, ib.

from this we find that f is the midpoint of ab.

so using mid point formula we find

f = (3,7)

similarly considering fb, we get

h = mid point of fb = ((6,6) and g, mid point of fh is

g = (9/2, 13/2)

i is mid point of hb

so i =(15/2,11/2)

180°

step-by-step explanation:

sum of equilateral triangle=180°

< n=60°

< m=120°°[angle supplementary of equilateral angle]

< m+< r+< x=360°(sum of exterior angle of triangle)