Solve using the quadratic
02 + 3r +3= 0
Asnwer

r= -5/3

Step-by-step explanation:

:Simplify both sides of the equation.

2+3r+3=0

(3r)+(2+3)=0(Combine Like Terms)

3r+5=0

3r+5=0

Step 2: Subtract 5 from both sides.

3r+5−5=0−5

3r=−5

Step 3: Divide both sides by 3.

3r

3

=

−5

3

r=

−5

3

it is 10.6 according to my calculations

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