A 78 gram sample of Uranium has a half-life of one year. This means that it loses half of
its mass each year. What is the exponential equation for this situation?

my apex says that it is false

to be honest i don't know but i need points so

answer: the correct option is d.

explanation:

it is given that the triangle j'k'l' shown on the grid below is a dilation of triangle jkl using the origin as the center of dilation.

from the given graph it is noticed that k(4,8) and k'(2,4). let origin is defined by o and scale factor is defined by k, then

    (1)

distance formula,

put these values in equation (1).

therefore scale factor is     and option d is correct.