The amount of the substance (At) at any time t is calculated through the equation,
At = (A0)(e^-kt)
where A0 is the initial amount and k is constant.
For the half-life,
ln (At / A0) = ln 0.5 = -k(5270 years)
The value of k is 1.3153x10^-4 / year.
Substituting this value to the same equation, where At = 0.25A0
ln 0.25 = -(1.3153 x 10^-4)(t)
The value of t from this equation is 10540 years. The closest value to this is letter A.
Step-by-step explanation:
Yes, it is Arithmetic sequence
Because
1/2 - 1 = 0 - 1/2=-1/2-0= - 1/2
Common Difference d = - 1/2
Multiply 1.6 by 12 and it will give u your answer
Answer:
Step-by-step explanation:
As per diagram, the distance AB + BC is same as AD + DC
Since the distance is same for both, the friend will win due to running at greater speed
1. -35k+28
2. ?
3. 5n+35
4. 12r-32
5. -90x+-10
6. 15x+15
