It has been given that exactly 0.1 of the radioactive nuclei in a sample decay each hour. Thus, after n hours, the fraction of nuclei is given by the model expression: .
Now, to find the value of n equal to one half-life, all that we need to do is to equate the above expression to half or 0.500 (to the indicated places of decimal) and solve for n.
Thus, we will get:
Taking the log to the base 10 on both sides, we get: (Please note that we can take the log to any base)
Dividing both sides by log(0.900), we get:
hours
Therefore the value of n equal to one half-life is 6.579 hours.
Answer:
There are 23.1% probability of flights getting delayed.
Step-by-step explanation:
Given:
Number of samples of flights selected = 1000
Number of flights arrived on time = 769
We need to find the probability of flight being delayed.
Solution:
Now we will first find the number of flights which are delayed.
number of flights which are delayed can be calculated by subtracting Number of flights arrived on time from Number of samples of flights selected.
framing in equation form we get;
number of flights which are delayed =
Now we will find the probability of flight being delayed.
probability of flight being delayed can be calculated by dividing number of flights which are delayed from the Number of samples of flights selected and then multiply by 100.
framing in equation form we get;
probability of flight being delayed =
Hence There are 23.1% probability of flights getting delayed.
Answer:56 degrees
Step-by-step explanation: Using Base Angles Theorem, we can conclude that angle x is 180-62*2, which is 180-124, which is 56 degrees.
The right answer is 10√5..
please see the attached picture for full solution
Hope it helps
Good luck on your assignment
Answer:
13
Step-by-step explanation:
For 6 cups is 7.80
For 10 cups is??
7.80×10=78
78/6=13