Elissa wants to set up a rectangular dog run in her backyard. she has 30 feet of fencing to work with and wants to use it all. if the dog run is to be x feet long, express the area of the dog run as a function of x.

a. a(x)=14x-x^2
b. a(x)=15x-x^2
c. a(x)=17x^2-x
d. a(x)=16x-x^2

step-by-step explanation:

left be aligning the decimal points is required to not required see the number of digits to the right

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