Someone help please I’m confused
...
Answers: 2
Mathematics, 21.06.2019 14:00
Initially 100 milligrams of a radioactive substance was present. after 6 hours the mass had decreased by 4%. if the rate of decay is proportional to the amount of the substance present at time t, find the amount remaining after 24 hours. (round your answer to one decimal place.)
Answers: 3
Mathematics, 21.06.2019 15:00
Which sum or difference identity would you use to verify that cos (180° - ∅) = -cos ∅? a. sin (α -β) = sin α cos β – cos α sin β b. cos (α -β) = cos α cos β – sin α sin β c. cos (α -β) = cos α cos β + sin α sin β d. sin (α + β) = sin α cos β + cos α sin β
Answers: 2
Mathematics, 21.06.2019 17:00
Two planes leave an airport at the same time, one flying east, the other flying west. the eastbound plane travels 20 mph slower. they are 1600 mi apart after 2 hr. find the speed of each plane.
Answers: 1
Mathematics, 21.06.2019 23:00
Find the rate at which the water is now flowing from the tap give your answer cubic centimetres per second
Answers: 1
Mathematics, 24.08.2019 20:30
Chemistry, 24.08.2019 20:30
Chemistry, 24.08.2019 20:30
Chemistry, 24.08.2019 20:30
Health, 24.08.2019 20:30
Biology, 24.08.2019 20:30
History, 24.08.2019 20:30
Social Studies, 24.08.2019 20:30
Mathematics, 24.08.2019 20:30
Arts, 24.08.2019 20:30