Strontium 90 is a radioactive material that decays according to the function A(t)=A_{0} e^{-0.0244 t},A(t)=A
0 e −0.0244t, where A_{0}A 0 is the initial amount present and A is the amount present at time t (in years). Assume that a scientist has a sample of 800 grams of strontium 90. What is the decay rate of strontium 90?

answer: 800

step-by-step explanation:

answer: 4  

the square root of 16 is 4. it is a very simple mathematic concept. a square root when a number multiplied by itself will result in a number. here, the number 16 comes when 4 is multiplied by 4. hence the square root of 16 is 4. you can always figure out a square root by the inverse operation of squaring.  

i think the answer is b. i hope i !

same question do you know the answer