Scientists study 200 adults who have type 2 diabetes, and 200 adults who have similar characteristics but do not have the disease. for 18 months, the researchers collect lifestyle information on all the study participants. according to the study's findings, the adults with type 2 diabetes were 25% less physically active than their counterparts who did not have type 2 diabetes. this is an example of a(n) study.

Observational study

Step-by-step explanation:

Given that scientists study 200 adults who have type 2 diabetes, and 200 adults who have similar characteristics but do not have the disease.

For 18 months, the researchers collect lifestyle information on all the study participants

This is an observational study as actual effect of type II diabetes on 200 adults and those who do not have were observed.  There were no experiments conducted or any medicine external given.  As such they were studied and results recorded

Hence an observational study

so a parallelogram is just like a square base times height. multiply 40 and 39 to get 1560 inches.

a triangle is base times height divided by two. so multiply 7.9 and 5 and then divide it by 2 to get 19.75inches.

the kite can be split into two separate triangles and added together to get the total area. 30 x 4 /2 which equals 60. make sure to double it for the two triangles making 120.

you need to add a picture