By definition, a business letter is used by employees and clients of different companies as a form of communication with regards to their agenda. In addition, it mainly comprises of tones having a much formal use of language. Proper formats must be observed in making these kind of letter such as avoid indenting when using a block format.
Answer:
He is a teacher
Mr. Surendra is a math teacher
Explanation:
If you're in doubt, say it out loud. It could also be 'the'.
Part A: The author describes the dangerous situation that the characters in the story are facing.
Throughout the passage the speaker reminds the reader of the danger the characters are facing. This creates suspense. A flashback does not create suspense. The background and training adds to how dangerous the situation is since only a person that well-trained can complete the rescue but it doesn't add to the suspense: the danger does. A is also wrong for the same reason.
Part B: “I shouldn’t think of this as easy. I know what I need to do here, but I could lose one these men if just one thing goes wrong.”
This quote best shows the danger that the speaker and the characters are in. It shows that the situation is life and death. One wrong move and it's all over for someone.
Answer: 0.9765
Explanation:
The cumulative distribution function for exponential distribution for random variable x is given by :-
, where 
is the mean of the distribution .
Given : On average, 5 customers arrive at the drive-up window of a fast-food restaurant every 4 minutes during the lunch hour.
Then 
Now, the probability that the next customer will arrive within three minutes :-
Hence, the probability that the next customer will arrive within three minutes = 0.9765
