Im pretty sure that the answer is D.
Answer:
1.28 minutes
Step-by-step explanation:
Given data
Speed= 7 meters per minute
Distance= 8.96 meters
We know that the expression for the Speed, Distance, and time is given as
Speed= Distance/Time
TIme= Distance/Speed
Substitute
Time= 8.96/7
Time= 1.28 minutes
The first answer, subtract 6 from 27, then divide by 3
Answer: 44g
Step-by-step explanation:
Half life refers to the length of time it takes for half of the atoms of the element in question to decay.
The half life here is 1 minute which means that in a minute, the amount of protactinium left would be:
= 352 / 2
= 176g
After the second minute:
= 176 / 2
= 88g
After the third minute:
= 88 / 2
= 44g
For the first one X = 472.25
second one X = 36