Write 2x - x2 = 1 in standard form.
An equation in standard form is

X^2-2X+1=0

Step-by-step explanation:

given,2X-X^2=1

or,-(X^2-2X)=1

or,X^2-2X=-1

or,X^2-2X+1=0 ,which is the req.equation in standard form.

a28=58

step-by-step explanation:

a1=a1+(n-1)d

a28= 4+ (28-1)2

a28=4+(27)(2)

a28=4+54

a28=58

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