Mathematics, 16.07.2019 05:00, aredwolf2017
The function f(h)=m(1/2)^h gives the mass, m, of a radioactive substance remaining after h half-lives. iron has a half-life of 2.7 years. which equation gives the mass of a 200 mg iron sample remaining after y years, and approximately how many milligrams remain after 12 years? a) f(x) = 2.7(0.5)200; 1.7 mgb) f(x) = 200(0.5)12; 30.8 mgc )f(x) = 200(0.5)12; 30.8 mgd) f(x) = 200(0.185)12; 3.2 mg e)f(x) = 200(0.774)12; 9.2 mg
Answers: 2
Mathematics, 21.06.2019 17:40, challenggirl
Find the volume of the described solid. the solid lies between planes perpendicular to the x-axis at x = 0 and x=7. the cross sectionsperpendicular to the x-axis between these planes are squares whose bases run from the parabolay=-31x to the parabola y = 30/x. a) 441b) 147c) 864d) 882
Answers: 1
The function f(h)=m(1/2)^h gives the mass, m, of a radioactive substance remaining after h half-live...
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