The sides of a triangle are 5.2 cm, 6.3 cm and 9.4cm, each correct to the nearest millimetre. Calculate the lower bound of the perimeter of the triangle.

1.30

step-by-step explanation:

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

it is a horizontal line.

3xy cannot be combined with the others

2x, -5x and x are like terms