Someone help me please An ABCDEFGH cube is considered.
We note K the middle of [CD]. Point I is also considered as vector FI=1/3FB(vector)
We're in the marker (A;AB, AD, AE).
l)Give the coordinates of all the points of the figure.
--> I answered: A(0,0,0); B(1,0,0); C(1,1,0); D(0,1,0); E(0,0,1); F(1,0,1); G(1,1,1); H(0,1,1).

2) The plan (EIK) is considered. J is noted at the intersection of plan with the right (BC). Show that J's coordinates are in shape (1;y;0) ​

28

step-by-step explanation:

8+8+6+6

i do not know this sorry : (

irst, find the z score of a score of 80. this is given by the formula z = (x-u)/o, where x is the score, u is the mean, and o is the standard deviation. this gives

z = (80-78)/12 = 1/6 = .1667

now, find what percentile a z score of 1/6 correlates to in the normal distribution.

a z score of 1/6 = .1667 is equivalent to the 56.36th percentile of the distribution. so the probability a score is over this is 1-.5636 = .4364

the mean of a sample mean is equal to the original mean. however, the standard deviation of a sample mean is equal to the original standard deviation divided by the square root of n (sample size). so the new standard deviation is 12/sqrt(16) = 3.

the new z score is 80-78/3 = 2/3 = .667. this is equivalent to the 74.86th percentile. so the probability that the mean will be greater than this score is 1-.7486 = .2514.

↓↓↓↓↓↓↓↓↓

step-by-step explanation:

this is a parabola.