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.
Answer:
Yes
Step-by-step explanation:
It has a 45 degree angle
Answer:
0
Step-by-step explanation:
Substitute x = 3 into the rational expression

= 
= 
= 0
Answer:
-8.
Step-by-step explanation:
The difference quotient for ax^n = anx^(n-1) so here we have
Difference quotient of -8x + 1
= -8x(1-1) + 0 (the difference quotient of any constant is 0).
= -8x^0
= -8 * 1
= -8 (answer).
Remember the median is the middle number!