Mathematics, 26.05.2021 17:00, khambay
Element X is a radioactive isotope such that every 23 years, its mass decreases by half. Given that the initial mass of a sample of Element X is 80 grams, how much of the element would remain after 21 years, to the nearest whole number?
Answers: 2
Mathematics, 21.06.2019 18:30, mauralawson
Aball is thrown from a height of 139 feet with an initial downward velocity of 15 ft/s. the ball's height h (in feet) after t seconds is given by the following. h=139-15t-16t^2 how long after the ball is thrown does it hit the ground? round your answer(s) to the nearest hundredth. (if there is more than one answer, use the "or" button.) t =
Answers: 1
Mathematics, 21.06.2019 23:40, malikapooh124
Klmn and pqrs are similar trapezoids. which side of pqrs corresponds to lm
Answers: 1
Element X is a radioactive isotope such that every 23 years, its mass decreases by half. Given that...
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