Answer:
C. R90
Step-by-step explanation:
Hope this helps
The work is on the picture attached, but a = 1
Hope this helps!!
Step-by-step explanation:
many things are possible.
the only thing we must not do is mixing the addition elements with the multiplication elements.
but we could change the expression to
3×(3×8) + 5
or
5 + (3×3)×8
or
5 + (3×8)×3
and so on, and it would always be the same result.
Your question is incomplete. The complete question is attached down
Answer:
JM = 20 units
Step-by-step explanation:
∵ Hexagon RSTUVW is similar to hexagon JKLMNP
∴ The corresponding sides and diagonals have a constant ratio
∴
∵ ST = 6 units
∵ KL = 10
∴ 
- Simplify it by dividing up and down by 2
∴
∵ 
∵ RU = 12 units
∴ 
- By using cross multiplication
∴ JM × 3 = 5 × 12
∴ 3 JM = 60
- Divide both sides by 3
∴ JM = 20 units
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]