15. Determine the distance between the flagpole and the school building if the school building is 55m tall and the angle of depression from the top of the school
building to the base of the flagpole is 57°

step-by-step explanation:

493 would be the correct answer

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