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Tutor profile: Katie C.

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Katie C.
Tutor for CompSci, Math, Bio, French, English, or Piano!
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Questions

Subject: French

TutorMe
Question:

This question is useful to intermediate French learners. I am happy to work with students of any level! Mary is an American student learning French. She described a family vacation to her friend Béatrice, a student in France learning English. There are some grammatical errors in Mary’s paragraph that Béatrice will correct. Can you identify at least 5 errors? Il y a une mois, j’ai voyagé dans la ville où j'ai grandi. Ici, la nature est incroyable. Il y a le lac, les montagnes et même la cave où vivaient des amérindiens. Pendant cette voyage, je visitais mes parents, ma sœur (qui je ne vois pas très souvent) et ma grand-mère. Nous mangions beaucoup de la nourriture délicieux, par exemple de la viande au barbecue, de la soupe thaï (ma sœur adore cuisiner) et beaucoup de glaces ! En plus, nous faisions l’activité physique. Nous avons sauté sur un bateau sur le lac et sommes allés à montagne en milieu du lac. Nous avons fait une randonnée à la montagne et fait du ski nautique.

Inactive
Katie C.
Answer:

Il y a (1)*une* mois, j’ai voyagé dans la ville où j'ai grandi. Ici, la nature est incroyable. Il y a (2)*le* lac, *les* montagnes et même *la* cave où vivaient des amérindiens. Pendant cette voyage, je (3)*visitais* mes parents, ma sœur (qui je ne vois pas très souvent) et ma grand-mère. Nous avons mangé beaucoup de (4)*la* nourriture (5)*délicieux*, par exemple de la viande au barbecue, de la soupe thaï (ma sœur adore cuisiner) et beaucoup de glaces ! En plus, nous faisions l’activité physique. Nous avons sauté sur un bateau sur le lac et (6)*avons allé* à montagne en milieu du lac. Nous avons fait une randonnée à la montagne et fait du ski nautique. 1) un (mois is masculine) 2) Il y a un lac, des montagnes et même une cave (we should use indefinite articles here since the lake, mountains, and cave have not been mentioned before.) 3) j’ai visité (this take passé composé because the visiting happened and was completed in the past. It is not ongoing) 4) “la” should be deleted. Adverbs of quantity, like beaucoup, are nearly always followed by “de” with no article. 5) délicieuse (nourriture is feminine. The adjective should agree) 6) sommes allés (Aller behaves differently from other verbs in passé composé. It is one of the DR & MRS VANDERTRAMP verbs. They conjugate using être rather than avoir, and the past participle agrees with the subject of the verb.)

Subject: Java Programming

TutorMe
Question:

We have triangle made of blocks. The topmost row has 1 block, the next row down has 2 blocks, the next row has 3 blocks, and so on. Compute recursively (no loops or multiplication) the total number of blocks in such a triangle with the given number of rows. triangle(0) → 0 triangle(1) → 1 triangle(2) → 3

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Katie C.
Answer:

public int triangle(int rows) { if (rows>0){ return triangle(rows-1)+rows; }else{ return 0; } }

Subject: Biology

TutorMe
Question:

E. coli cells grown on $^{15}N$ medium are transferred to $^{14}N$ medium and allowed to grow for two more generations (two rounds of DNA replication). DNA extracted from these cells is centrifuged. What density distribution of DNA would you expect in this experiment? A) one high-density and one low-density band B) one intermediate-density band C) one high-density band and one intermediate-density band D) one low-density and one intermediate-density band Hint: What experiment was used to determine the semiconservative nature of DNA replication?

Inactive
Katie C.
Answer:

D Hint: Watson and Crick. Looking at a picture representing their experiment might help you answer this question!

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