Acontainer holds a pure sample of a radioactive substance with a half-life of 2 hours. part awhich of the following statements are true? check all that apply. view available hint(s)check all that apply. after 1 hour, less than 50% of the original atoms in the container will have decayed. after 1 hour, more than 50% of the original atoms in the container will have decayed. after 2 hours, 50% of the original atoms in the container will have decayed. after 4 hours, 25% of the original atoms will have decayed. after 4 hours, the total number of atoms in the container will be reduced by 75%.part b complete previous part(s)

Step-by-step explanation: Half life period means half of the initial amount will be remaining after decay which is the same as half of the initial amount is decayed.  

Nt= N0 *1/2 ^ (t/th)  

After one hour Nt = N0 *√ 0.5 ^ (1/2) =0.7 N0 remaining or 0.3 has decayed  

Hence it is TRUE that  

After 1, less than 50 %of the original atoms in the container will have decayed  

But the statement  

After 1 hours, more than 50% of the original atoms in the container will have decayed is false.  

...  

After 2 hours  

Nt= *0.5 ^ (2/2) N0= 0.5 N0 is remaining and 0.5 of N0 has decayed.  

Hence it is TRUE that  

After 2 hours, 50% of the original atoms in the container will have decayed.  

...  

After 4 hours  

Nt= 0.5 ^ (4/2) N0= 0.5^2 N0 = 0.25 N0 is remaining or 0.75N0 has decayed.  

Hence it is false that  

After 4 hours, 25 %of the original atoms will have decayed and  

After 4 hours, 25 %of the original atoms will have decayed  

...

3< x< 5

step-by-step explanation:

|x - 4| < 1

there are two solutions, one positive and one negative.   remember to flip the inequality when taking the negative solution

x-4 < 1       x-4 > -1

add 4 to each side

x-4+4 < 1+4       x-4+4 > -1+4

x< 5                 x> 3

3< x< 5

i dont know

step-by-step explanation: