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Mathematics Junior High

数学の学力テストの問題です。助けて下さい。 ⑶で (x+8)(x-12)=0 までは分かるのですがそこからが分かりません。 なぜ急に  x=12 となるのですか?

6 同じ形の立方体を,たて,横に個ずつ、水平な床の上に3段に積み上げて直方体を作る。この 立体に対して,次の操作を2回行う。 【操作】 積み上げられた立方体のうち,2つ以上の面がまわりから見えている立方体を,すべて 同時に取り除く。 ただし、床と接している面はまわりから見えないものとし,立方体を取り除いても立体はくずれな いものとする。例えばx=6のとき、直方体にこの操作を2回行うと,下の(図1)→(図2)→(図3) のように立体は変化する。 (図1) 次の(1)~(3)の問いに答えなさい。 1回目の 操作 Hadsand ↑ (図2) (1) x=6のとき, 2回目の操作後に残る立方体の個数を求めなさい。 一番上の段にある立方体の個数は 真ん中の段にある立方体の個数は 一番下の段にある立方体の個数は 2回目の 操作 ア Ji 101 gnilool quote bloode toY Syllss di best of new ode 1 ellsS > wo of ti evig oals IT soa aral (2) 2回目の操作後に残る立方体の個数について, ア~ウにxを使った式を,それぞれ当てはまるよ うに書きなさい。ただし, カッコがつくときはカッコをはずし、最も簡単な形にしなさい。 また, rol abson) ni boste sus? ... asw aanbo otrovst esmalse x≧5とする。 イ ウ aby (図3) 16. 個, 個となる。 「 T (8) ixon sisniH diw aus (3)2回目の操作後に残る立方体の個数が296個であった。 xの値を求めなさい。 doodbe je mradi te gabloof ani Duy ( nato le zote ni bolasini ei oY ( muw dub sonone oth gini of answ ONLY I

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English Junior High

英検準2級 2020年1月23日実施の英検です。 どなたか答えを教えてください💦🙏

)に入れるのに最も適切なものを 1, 2. Grade Pre-2 次の(1) から(20) までの( 1 3,4 の中から一つ選び,その番号を解答用紙の所定欄にマークしなさい。 When Julie began to take swimming lessons, she used the steps to slowly get into the pool. But her teacher taught her how to ( a much quicker way to get in. 1 ) into the pool. It is (1 4 build 3 fill melt 2 dive ) for Monday at (1 (2)A:Hello. I'd like to see the dentist. Can I make an ( 2 p.m., please? B:I'm sorry, but we are not open on Mondays. 1 envelope 4 hono 2 image 3 appointment ) about During the meeting, the presidents of the countries had a ( the environment. They talked about different ways to reduce air pollution. 1 4 discussion 2 material 3 population career ) he would get a good After Adam finished his math test, he felt ( grade. He thought he had done very well. 1 similar 2 hopeful 3 tiny 4 pure A:Where's Samantha? The movie will start in 15 minutes. I hope she isn't late. B:She told me that she will arrive in 10 minutes, so ( in time. ) she'll be here 1 endlessly 2 surely 3 rapidly 4 gradually (6)A:Ken, can I hold your puppy? B:Yes, but ( 1 join ) him gently. He's only five weeks old. 2 handle 3 spell 4 escape Kathy often watches a cooking show on TV to learn how to make new dishes. She always writes down the ( later. ) so that she can make the dishes 1 recipes 2 harbors 3 surfaces 4 policies Playing the trumpet looks easy, but it actually needs a lot of ( You have to practice hard to become really good. 1 skill 2 theme 3 planet 4 climate Yesterday, all of Kana's friends went home after school, but she ( in the classroom to talk to her teacher. 1 hired 2 attracted 3 remained 4 divided (10) 4:Angela, are you OK? There's blood on your face. B:Oh, don't worry. It's just a ( my cat. 1 ) that I got when I was playing with term 2 reward 3 factor 4 Scratch

Solved Answers: 1
English Junior High

答えを教えていただきたいです

eupons u 1ot boau ors nqe To ebmrd owa9T 1Tsleog adt ts lno. |2 次の1,2の問いに答えなさい。 ed a lni of beau ai oa0 Mib 1 次の英文中の から に入る語として,下の(1)から(6)のア,イ,ウ,エのうち, それぞれ最も適切なものはどれか。 A Today, people use a lot of *passwords they use computers and *smartphones. making your passwords, you should think about them a lot. You should this - Some people always try to *find out your passwords. If other people know your passwords, they can get your *information. By using your information, they can things with your *money. So, your passwords should not be too You should use big *letters like A, B, or C, small letters like a, b, or c, like 1, 2, or 3, and even “&”, “!", or “?" together. If you make a short password like “1234”, other people will find out your password in two or three *seconds. 09g bosusum vllnaiy *smartphone(s) =スマートフォン *information =情報 [注) *password(s) =Dパスワード vig Stenlaldegran *money =金 *letter(s) =文字 STadi hnd out =見つけ出す *second(s) =秒 101 ordt yaia ウ when ウ During (1) ア what イ that エ but ア Before イ After adエ Because (3) ア leave イremember ウ forget エ change ndT Sll,on .dO nedu anmyolitpgt 2o dol n oee uoy deoroni bine-Fol エ buy mbib gw.e difficult (4) ア rescue catch write vnd olidl oyom ovsd bloodavoilTodtet vm easy Jpuods Tmsqet ai yarvBq olidon node ウ sports イ exciting Bo ウ エ 9T エ animals (5) ア important 1 ned b 6) ア seasons 2W イ numbers .bius boti J日 00t IshY haon snoso 2 次の(1),(2),(3)の( )内の語句を意味が通るように並べかえて,(1)と(2)はア, イ、ウ, エ, (3)はア,イ, ウ, エ, オの記号を用いて答えなさい。l evI Jneg oeln ai nobt aid a laida 1 dan (1) This room (ア by イ cleaned ウ my mother エ is) every day. ウ my friend aiェ see) tomorowaV adai the station 1.blugda イ practice ウ doesn't (2) Ill go to (ア to Bab mi enalg vasqi, ji,iv od Jmew I t エ the piano オ have) today. (3) Lisa (アto ロ ーutveg afitoar" () aotnib attqaue (abe) る bingani yliaaiy"

Solved Answers: 1