Select the correct answer.
when using the binomial formula, which of the following is a correct step in the expansion of (1+y)"?
ca 14 +1: 14 – 1)y + 464 - 1), (4 – 2) y2 + 4 (4 – 1)(4 – 2), (4 – 3),8 + 4(4 – 164 - 2)14 – 3), (4 – 4),4
04 + 114 – 1)y + 414 – 1), (4 – 2) y2 + 4 (4 - 1)(4 – 2), (4 – 3) y3 + 464 – 1)(4 – 2)(4 – ), (4 – 4)4
°c 4 + 4 : (4 – 1)y + 444 – – 2),y2 + 464 – 1)(4 – 2) (4 – 3),3 + 44 – 164. – 2)64 – ), (4 – 4),4
d. 14 + 1 (4 – 1), + 4(4 – 1) (4 – 2), (4 – 3),3 + 4(4 – 1)(4 – 2)(4 – 3), (4 - 4), 4
2

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)

answer: 33 ( approx)

step-by-step explanation:

since, in the linear regression formula, the slope is the a in the equation y = b + ax ( by comparing it with the general equation of line y = mx + c )

where,

here given table is,

price ($), x   :           18         23       25       29       30       33

pairs sold, y :         16         13         10       8         6       2

so, ,   ,   ,

and   ,

thus, slop of the given line is,

⇒  

⇒   ≈ 33