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英語 高校生

問5の考え方を教えてください。 大学の過去問のため、解答を読んでも内容が薄すぎてわかりませんでした。

次の英文を読んで, 後の問いに答えなさい。 (35点) 1 Some of the best workers in America dont get paid. But these (jemployees aren't quitting or Complaining. In fact, they seem happy to work like, well, dogs. That, of course, is what thev are Professional dogs do a variety of jobS. They serVe as "eyes" for the blind and "ears" for the dear" A they bring joy to children in hospital, Dogs do many other jobs too. (2With)the right training, dogs make great workers. They're smart. and faithful. They're also very much reliable. 3 Lア has/ イ than/ ウ a dog's/ エtwenty/ オ ahuman's/ カ nose / キtimes / ク more smelling cells」: Dogs may learn to smell bombs, drugs, money, or even bananas. les, bananas. Fruits, vegetables, meat, and other food items sometimes carry nsects and diseases, Food-rom foreign_countries scould infect, crops or animals in the U.S> To prevent that, the U.S. Government trained a group() beagles,) who check wallets and bags at international airports. The beagle silegtty_ sits down next to A illegal items. But why beagles? They're friendly and attractive. So they don't scare people as they check through the crowds. More important, beagles have an amazing nose for food. They sense smells so Vague that machines can't measure them. acch mugy pae pauue 「smells Suspicious. The dog's human partner then checks for

未解決 回答数: 1
英語 高校生

ELEMENT2 lesson3のページです。Cのリスニングの解答わかる方、教えて欲しいです

B Reading for details : Fill in the blanks with the words in the box below, and then choo, To Comprehension, daLbaboan d Vocabulary Reading for main ideas: Choose the best answer. orfw tong 00g 1. What is the main idea of the passage? A Choose the correct SS a 1. The report he m space. mitaoo poY 2. I felt an overw ©A professor kindly agreed to let a promising teenager use his lab 2. Teenagers can make the world a better place by @ living up to their uncle's words bgetting a lab to carry out experiments working hard and going through many trials 3. Although there out his plans. 4.I am disappoir 5. It takes a lot c SS the correct title for each part. C d > Pancreatic cancer tends to be diagnosed too late due to poor detection (1. >A high school student named Jack Andraka decided to come up with a 1 way to detect it when his close friend (2.g1 ) the disease. Part 1 B Choose the c > Jack found a database of (3 Protelns number of proteins to be checked was no less than 8,000. S which are related to pancreatic cancer, but ih 1019o6 1. I'm sorry, Part 2 > He went through the list one by one and found a protein that can be used o. (4.moyke) to detect the cancer. 2. They were 3. Most peo > Jack wrote to 200 professors and asked them to let him use their lab space fr further experiments, but almost all of them (5k0eyhis request. Part 3 (よ) anterected. C Fill in the > One professor was (6. in his plans and invited him for an interview. > Jack managed to answer all the (7. 0esting 1. There w , Ther ) asked at the interview and gu space in a lab. > Several months later, he successfully came up witha new detection method which is faster, cheaper and more (8. new method. 一→ Part 4 dnie 2.I found →I ca ). He changed the world with the accurceと 3. It tool Titles → Itt Words 9 O Finding the Marker Protein D His Success and a Great Detection Method 4. I am interested / proteins / accurate got / questions / rejected marker / methods →I © Jack Andraka's Decision © Trying to Get Lab Space 5. She c Listening for details : Listen to the statements and answer T(true) or F(false).. Tips pa D Retelling the story : Look at the pictures on pages 48-49, and retell the story. 味で 52 A Teenager To Change the World 8-

回答募集中 回答数: 0
数学 高校生

(2)について 自力で求めたところ、2枚目の回答になったのですがこの答えは正解にはなりませんか? 間違っている場合、どこでつまづいているのか教えてください!

1次不定方程式の整数解(基本) 「次の方程式の整数解をすべて求めよ。 449 礎例題102 基礎例題101 発展例題108. 109 OO (1) 7x+13y=0 (2) 5x+9y=1 x 式 () CHABT GUIDE) 1次不定方程式 a●=b■(a, bは互いに素)の形にもち込む bが互いに素のとき,ac がbの倍数ならば,cは6の倍数である。 x, yに適当な値を代入して,整数解を1つ (x=p, y=q)見つける。 (a, b, cは整数) (2) (1 例えば、5x=1-9y とし、1-9yが5の倍数になるようなyの値をさがす。 2 5x+9y=1 と 5p+9q=1 の辺々を引いて5(xーb)+9(y-q)=0 3 を利用して,x-p, y-qをkの式で表す。 5章 田解答田 (1) 方程式を変形すると 7xは 13の倍数であるが,7と 13は互いに素であるから、 の格子点の座標が整数解 22 7x=-13y .o 直線 7x+13y==0 上 &を整数として 0に代入して ゆえに,すべての整数解は (2) x=2, y=-1 は 5x+9y=1 x=13k と表される。 となる。 ー -13y=7·13k (Sと。 よって :03 x=13k, y=-7k (kは整数) ソ=ー7k -7x+13y=0 ニー のの整数解の1つである。 13 26 ー26 -13 0LN 17 2 C+S+( 5-2+9·(-1)=1 5(x-2)+9(y+1)=0 ix よって の 頂 0-のから 5と9は互いに素であるから,③より -14 -5(x-2)=-9(y+1) x-2=9k, y+1=-5k (kは整数) 5(x-2)は9の倍数で、 5と9は互いに素より したがって,Oのすべての整数解は オ-2=9k(k よって Rは整数) x=9k+2, y=-5k-1(kは整数) の 5-9k=-9(y+1) 0=(S-)SI+(011)ゆえに y+1=-5k =7 1次不定方程式

未解決 回答数: 1