Scientists can estimate the number of bacteria in a refrigerated food using the formula 0.2b=t^2/20 where b is the number of bacteria and t is the time in seconds. what was the approximate time a food was in the refrigerator if there were 625 bacteria?

a. 30 seconds
b. 40 seconds
c. 50 seconds
d. 60 seconds

Which geologic feature would most likely be represented by contour lines john far apart from one another? a cliff a hill a plain a valley

Time remaini 02: 50: 5 in the farewell speech, queen elizabeth's use of first-person point of view her to appear to be impartial and objective prevents her from addressing the audience directly allows her to share her personal thoughts and ideas, makes it seem as though she's observing from the outside, mack this and return save and evit

Cpr, or cardiopulmonary resuscitation, is a first-aid technique to save lives. it involves compressions of the patient's chest cavity. which description is the best description of the functions of chest compressions in cpr? chest compressions are done to pump the heart. chest compressions are done to strengthen the rib bones. chest compressions increase carbon dioxide inhalation. chest compressions allow the patient's muscles to wake up.