1) I hurt my leg yesterday, and I had to go to the doctor. 2) I asked my mother to write an excuse for me to get back in school. 3) She wrote that I had twisted my ankle doing exxercise. 4) She also wrote that I had been prescribed some medicine that could make me sleepy. 5) Finally, she wrote that she wanted to exttend her apologies for my absence. 7. Which of the first four sentences contains an error in spelling? Sentence 1 Sentence 2 Sentence 3 Sentence 4

This problem has been solved! see the answeran evil king has a cellar containing n bottles of expensive wine, and his guards have just caught a spy trying to poison the king’s wine. fortunately, the guards caught the spy after he succeeded in poisoning only one bottle. unfortunately, they don’t know which one. to make matters worse, the poison the spy used was very deadly; just one drop diluted even a billion to one will still kill someone. even so, the poison works slowly; it takes a full month for the person to die. design a scheme that allows the evil king to determine exactly which one of his wine bottles was poisoned in just one month’s time while expending at most o(logn) of his taste testers.you are not allowed to use n testers, one for each bottle, and see which one tester dies after 30 days.(no pseudocode needed. just answer in words, how many testers you use, how you use them and why you correctly identify the poisoned bottle in 30 days)

1. which of the following is a search engine? a) mozilla firefox b)internet explorer c)google d)safari 2. which of the following statements is true? a) all search engines will provide the same results when you enter the same query. b) all search engines use the same amount of advertisements. c) some search engines are also browsers. d) search engines often provide different results, even when you enter the same query.

What is one reason why indoor air pollution has become an increasing problem.