Square panel has an area of 225 find the dimension of the piano

15 units by 15 units

Step-by-step explanation:

Recall that the formula for the area of a square is A = s^2, where s is the length of one side.

Here, A = s^2 = 225 units^2.

Taking the sqrt of both sides, we get s = +15 units.

Thus, the panel here is 15 units long and 15 units wide.

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