A radio-active isotope used in medical imaging has an exponential decay that can be modeled as:
A = A0e-0.25t where A is the amount of the isotope at the end of t hours,
A0 is initial does of isotope given, and t is time (in hours).
How many hours will it take for the ½ of the isotope to decay? Round
answer to the nearest hour.

d

gimmee one of those gold crowns!

~coco

step-by-step explanation:

because 1/3 is a fraction. we can tell because there is a divisor symbol between the 1 and the 3. if we were to add 2 fractions together, we would add the numerators, which is the number on top, but not the denominators, which is the number on the bottom

1/3+1/3=2/3

hope this !

p

step-by-step explanation: