For a certain experiment the available experimental units are 8 people; four females (f) and four males(m). use (1f,2f,3f,4f) to denote the females and (1m,2m3,m,4m) to denote the males. there are to be four treatment groups: A, B,C, and D. if a randomized block design is used with the experimental units blocked by gender, which assignment of treatments is correct A: A(1f, 3m), B(2f,2m), C(3f,1m), D(4f,4m)
B: A(2m,1m), B(1f,2m), C(3f,3m), D(4f,4m)
C: A(3m,1m), B(2f,4f), C(3f, 1f), D(4m,2m)
D: A(1f,3f), B(2f, 2m), C(4f,1m), D(4m,3m)

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step-by-step explanation:

distance formula is d=√(x2-x1)^2   +   (y2-y1)^2

hiking down a winding trail.

step-by-step explanation:

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

step-by-step explanation:

formula

x = x1 + p/w(x2 - x1)

let the line segment ab with a(x1,y1) and b(x2,y2)

a point(x,y) divide ab in the ratio, 2: 3 the x coordinate can be written as

x = x1 + p/w(x2 - x1)

here p=2 and w = 2+3

therefore,

x coordinate can be written by using the formula, x= x1 + 2/5(x2 - x1)

similarly y coordinate y = y1 + 2/5(y2 - y1)