Which example illustrates the associative property of addition for polynomials? [(2x2 + 5x) + (4x2 – 4x)] + 5x3 =
(2x2 + 5x) + [(4x2 – 4x) + 5x3]

[(2x2 + 5x) + (4x2 – 4x)] + 5x3 =
[(4x2 – 4x) + (2x2 + 5x)] + 5x3

(2x2 + 5x) + [(4x2 – 4x) + 5x3] =
(2x2 + 5x) + [5x3 + (4x2 – 4x)]

[(2x2 + 5x) + (4x2 – 4x)] + 5x3 =
[(5x + 2x2) + (–4x + 4x2)] + 5x3

y=-2.5x+12.5

step-by-step explanation:

5y=2x+10

y=0.4x+2

slope=-2.5

5=-2.5*3+b

b=12.5

d. 145*2 is 290 than the total angle is 360 then minus 290 then divide by two

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

2*2=3

two times two is four

i dont understand what you mean so pls comment