Answer:
3x-10=x+4
Step-by-step explanation:
Answer : The substances half life in days is, 5.6 days.
Step-by-step explanation :
Half life : It is defined as the amount of time taken by a radioactive material to decay to half of its original value.
All radioactive decays follow first order kinetics.
The relation between the half-life and rate constant is:

where,
k = rate constant = 0.1235 per days
= half-life
Now put all the given values in the above formula, we get:


Thus, the substances half life in days is, 5.6 days.
Rounded to the nearest cent, the answer is 1.19
////// The answer is: 4x+2
Answer:
2 x 2 x 3 x 7
Step-by-step explanation:
2x2=4
4x3=12
12x7=84