40 points plzzz ! radium has a half-life of 1600 years. how much radium will be left from a 1000-gram sample after 1600 years?

Ending Amount = Beginning amount / 2^1

Ending Amount = 1,000 / 2

Ending Amount = 500 grams

Step-by-step explanation:

step-by-step explanation:

given that there are two triangles j'k'l' and jkl>

the former is got by dilating the second one.

when drawn on a grid, (graph paper) coordinates of vertices of first triangle is

(6,12)j, (9,6)k and (12,9)l

side jk has length = distance between j and k

=

side j'k'=distance between j' and k'

=

ie j'k'l' has sides 1/3 of that of corresponding sides of jkl.

hence scale factor of 1/3 is used to get j'k'l'from jkl

the answer is 48m^2!

step-by-step explanation: