Answer:
3 and 1/100
Step-by-step explanation:
Answer:
Given that,
The number of grams A of a certain radioactive substance present at time, in years
from the present, t is given by the formula
a) To find the initial amount of this substance
At t=0, we get
We know that e^0=1 ( anything to the power zero is 1)
we get,
The initial amount of the substance is 45 grams
b)To find thehalf-life of this substance
To find t when the substance becames half the amount.
A=45/2
Substitute this we get,
Taking natural logarithm on both sides we get,
Half-life of this substance is 154.02
c) To find the amount of substance will be present around in 2500 years
Put t=2500
we get,
The amount of substance will be present around in 2500 years is 0.000585 grams
Step-by-step explanation:
The answer is 27 but idk what kind of grouping
Equation: L=P*R*T
P=100
R=1.5%=0.015
T=5
Multiply and you get 7.5 as the interest.
Answer:
Company B
Step-by-step explanation:
Company B has staff who works for less than 30 hours per week since it is a software company which freelances various technicians. They are free to work on the time of availability and there is no restriction of work to be done. They are paid on the basis of tasks they complete and they work remotely. The interviewer should select an employee from Company B because they work less than 30 hours per week.