Answer:
m=-3
Step-by-step explanation:
10=7-m
m=7-10=-3
Answer:
Step-by-step explanation:
Half life is the time taken by a radioactive substance to reduce of half of its original size
If the half life of radium is 1600, this means that the original radioactive substance N0 have reduced to N0/2 after 1600 years
if we are given N0 = 1000grams
The amount of the substance that will remain after 1600 years will be N0/2 i.e 1000/2 = 500g
<em>Hence 500 grams of radium will be left after 600years</em>
Answer:
Answer is 3/4
Step-by-step explanation:
Answer:
its the first one. you're right.
A reflection over y-axis.
