Ascientist conducted an experiment to determine whether an organic cleaner is as effective as a non-organic cleaner in killing germs that cause colds and the flu. to conduct the experiment, the scientist randomly selected 50 doorknobs in a hospital. he cleaned 25 of the door knobs with the organic cleaner, and he cleaned the remaining 25 door knobs with the non-organic cleaner. after cleaning and testing all of the doorknobs, the scientist reported that the organic cleaner killed 90% of germs that cause colds and the flu on the doorknobs, while the non-organic cleaner killed 95% of germs that cause colds and the flu on the doorknobs. what can be concluded from the scientist's report?

The sample taken is random and grouped. 50% doorknobs were cleaned with organic cleaner and 50% were cleaned with non organic cleaner.

It was reported that organic cleaner killed 90% of germs while the non-organic cleaner killed 95% of germs.

Therefore, the following conclusions can be made.

The organic cleaner is 90% effective  and the non-organic cleaner is 95% effective.

The non-organic cleaner is more effective in killing germs as compared to organic cleaner in killing germs that cause colds and the flu.

imma say 16%. sorry if its wrong. i'm doing the same stuff right now

step-by-step explanation:

the answer is c: divide the arc's degree measure by 360°, then multiply by the circumference of the circle.