The answer is the first one <3
Answer:7881 years
Step-by-step explanation:
You can use the equation
fraction remaining = 0.5n where n is # of half lives elapsed
n = ?
fraction remaining = 1 - 0.612 = 0.388
0.388 = 0.5n
n = 1.37 = the # of half lives
1.37 x 5750 yrs = 7881 years
Answer:
8 hours
Step-by-step explanation:
20÷5 = 4
4×2 = 8
Hope this Helps!
:)
Answer: 20%??? I don't know Honestly
Step-by-step explanation:
Answer:
B. -t+8
Step-by-step explanation:
add t to -2t and add 3 and 5