Multiply everything by 50/50 to cancel the fractions on the bottom to give you m/121
Answer:
It will take 60 days for half of the Iodine-125 to decay
Step-by-step explanation:
The amount of iodine-125 after t days is given by the following equation:
In which Q(0) is the initial amount and r is decay rate, as a decimal.
Decay rate of 1.15% per day.
This means that
So
To the nearest day, how long will it take for half of the Iodine-125 to decay?
This is t for which
So
To the nearest day
It will take 60 days for half of the Iodine-125 to decay
The answer would be the bottom right one. This is because first, we know that to get the 2 into the one's place to convert it into scientific notation, you move it 3 places which give us 10^-3. Then when multiplying you add the exponents and multiply the other number. -3+4=1 and 2x4=8
Hope this helped!
Answer:
I dont know this
Step-by-step explanation:
Step-by-step explanation:
start with 390 000x 5.6 x 6