Answer:
Answer:1.5*10^9 years
Step-by-step explanation:
The half life of the substance is given i.e 4.5B years. You can change it into seconds by multiplying it with 365 and 86400.
The current no of particles is given 78.88% which will be equal to 78.88 if you assume the substance had 100 no of particle initially.
Determine the decay constant by dividing 0.69 by half life
use these values in the equation for the answer.
[ln and e are inverse functions to eachother]
You can x 6 by all the number like 5x6 then 9x6 than 1x6 and and your numbers Carried
1.c
2.a
c because they are on the inside and on alternate sides, and a because they are corresponding angles.
Answer:
A solid formed is described when its resistance is tightly secured, and when it refuses to change shapes. It is one of the four fundamental elements. The best answer would be: The atoms are packed together and cannot move around.
Answer:
110
Step-by-step explanation:
A bump is 180 degrees as well as a triangle. So 90+20=110 and 180-110=70. Meaning 180-70 =110
