-F0,0244t where An is the initial amount present and A is the amount present at time tin yearsStrontium-90 is a radioactive material that decays according to the function A(t)= Ag eAssume that a scientist has a sample of 500 grams of strontium-90.(a) What is the decay rate of strontium-90?(b) How much strontium-90 is left after 40 years?(c) When will only 300 grams of strontium-90 be left(d) What is the half-life of strontium-90?Question Viewer(a) The decay rate of strontium-90 is %.(Type an integer or a decimal. Include the negative sign for the decay rate.)(b) Approximately grams of strontium-90 is left after 40 years.(Do not round until the final answer. Then round to the nearest whole number as needed.)(c) Only 300 grams of strontium-90 will be left in about(Do not round until the final answer. Then round to the nearest tenth as needed.)years.(d) The half-life of strontium-90 is approximately years,(Do not round until the final answer. Then round to the nearest tenth as needed.)

Given that---- initial amount of material A0 = 500 g. Radioactive material decay function-----…

Strontium-90 is a radioactive material that decays according to the function A(t) = An e -0.0244t where An is the initial amount present and A is the amount present at time t in years Assume that a scientist has a sample of 500 grams of strontium-90. (a) What is the decay rate of strontium-90? (b) How much strontium-90 is left after 40 years? (c) When will only 300 grams of strontium-90 be left (d) What is the half-life of strontium-90? Question Viewer