Amedical researcher has two petri dishes containing viruses. dish a has a population density of 1.2 viruses per square millimeter. dish a has an area of about 2,826 square millimeters. if both petri dishes have the same population density, approximately how many viruses are in dish a?

= 3,391 viruses

Therefore; for an area of 2,826 square millimeters, there will be;

  = 2,826 multiplied by 1.2 viruses

 = 2,826 × 1.2

 = 3391.2 viruses,

and since we can have a fraction or decimal virus then the population would be 3391 viruses

There are 3391.2 viruses in petri dish A.

Step-by-step explanation:

Given statements : The population density is 1.2 viruses per square millimeter.

each square millimeter is representing  population of 1.2 viruses.

There is a directly proportional relation between the area and the population  .

Let x be the population of virus in perti dish A.

Therefore,

Hence, there are 3391.2 viruses in petri dish A.

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