どうやって解くか教えてもらいたいです！🙇🏼‍♀️

■結果■ (7) 滴定の結果と滴下量の平均値を、次の表にまとめよ。 回数 1 2 3 滴定前〔mL] (a) 1.32 12.23 23,17 12,23 34.13 10.96 滴定後[mL] (6) 滴下量[mL] (b)(a) 110.91 23.17 10.94 4 5 平均値 10.95 2回目と 3回目 T ■考察■■ (i) (7) の滴定の滴下量の平均値より, (2) で希釈したレモン果汁に含まれるクエン酸のモル濃度, および希釈前のレモン果汁に含まれるクエン酸のモル濃度をそれぞれ求めよ。 ENNEN (ii) クエン酸 CHO, の分子量を 192, レモン果汁の密度を1.0g/cm² とする。 レモン果汁に含まれ る酸をすべてクエン酸と仮定して, レモン果汁 10mL中に含まれるクエン酸の質量を求めよ。 ANTRO ( ) レモン果汁のパッケージに記載されている量をもとに, レモン果汁 10 mL中に含まれるクエン 酸の質量を予想してみよ。 (ii) の結果がその値よりも小さくなった場合あるいは大きくなった場 合,どのような理由が考えられるか。 UDARA DESAST Plot) Im 10.0 5 HONEY ■探究課題■ 中和滴定を利用すると、食品などに含まれる酸を定量することができる。 前回使った万能pH試験紙 で今回のレモン果汁(原液、 10 倍希釈液)を測った結果と今回の結果を比較し、 気づいたことを書い てみよう。

69. なぜこの解き方では答えが求まらないのでしょうか？？ （指針ではOH･AB=0,OH･AC=0だと書いていますがOH･BC=0も成り立つと考えこれを用いて求めようとしました。）

基本例題 69 平面に下ろした垂線 (1) 00000 空間において, 3点A(5, 0, 1),B(4,20, 0, 1,5) を頂点とする三角形 ABCがある。 原点O(0, 0, 0) から平面ABCに垂線を下ろし, 平面ABCとの 交点をHとするとき, Hの座標を求めよ。 MOKE LAANE 指針点 0 から平面ABCに下ろした垂線の足Hに対して, 点Hは平面ABC上にあり,かつ,直線OH は平面ABC に垂直である ととらえて考える。 ... HOX- 外直線OH は平面ABCに垂直であるから、直線 OH は平面ABC 上のすべての直線と垂直である。 ただよって、OHA, OHAC ゆえに OH・AB = 0, OH・AC=0 する単位べク |解答 AB=(-1,2,-1), AC = (-5, 1,4)×0+0×S+(I−)×(1 ①点Hは平面ABC 上にあるから, AH=sAB+tAC (s, tは実 CHONDRAL 114 60 数) (*) とおける。 ゆえに OH=OA+AH $1-01x6 =OA+sAB+tAC =(5,0,1)+s(-1, 2, -1)+t(-5, 1,4) ①00× =(5-s-5t, 2s+t, 1-s+4t)・ OH (平面ABC) であるから OH⊥AB から OH･AB=0 よって ゆえに OHACから 2s+t=2 -(5-s-5t)+2(2s+t)−(1¬s+4t)=0 OH･AC=0 よって ゆえに ② ③ を解いて よって, ① から ...... -5(5-s-5t)+1・(2s+t)+4(1-s+4t) = 0 s+14t=7 OHLAB, OHLAČ S= 7 9' 9 H(2, 2, 2) A t= - (801) A C x TEL ZA HA4 C OH B HO 重要 71 ****** CA SCORT! B (8)=(2004)+(A)+¹(SADA) A (*) OH =LOA+mOB+nOC, l+m+n=1として考えても よい｡ (0) 487 2章 9 位置ベクトル、ベクトルと図形

生物の食物連鎖とかの問題だと思うんですけど誰かわかる方いますか？？？ 英語すみません💦

hhmi Biolnteractive Some Animals Are More Equal than Others: Trophic Cascades and Keystone Species Mean Leaf Area per Plant Over 18 Months without beetle with beetle Leaf Area per Plant (cm²) Control Ecology 2400 2200 2000 1800 1600 1400 1200 1000 800 Experimental 0 T 2 www.BioInteractive.org 8 10 12 14 16 Months After Start of Experiment 4 6 Refer to the figure to answer questions 12 through 17. 12. For both the plots with the beetles added and the control plots, state the mean tree leaf area per plot that the scientists recorded after running the experiment for 18 months. The mean tree leaf area per plot that the Scientist recorded after running the experiment for 18 months wit the beetles added is 1.7m², S 2.2m² 13. Compare the trends in mean tree leaf area per plot for both the plots with the beetles added and the control plots over the 18 months of the experiment. The area of the control plat for thinoceros beetles has d has increased at a nearly constant rate, the other is a gradua decrease at first, then a sudden decrease, and finally a dradua 18 Figure 2. Mean leaf area per tree. Initial measurements were taken before (0 to 2 months) and after (7 to 18 months) beetles were added to 40 of 80 plants. The light gray round markers represent measurements taken of the control plots, to which beetles were not added. The black square markers represent measurements taken of the experimental plots, to which beetles were added. Measurements were made on all leaves to calculate the mean leaf area per plant. Error bars represent standard error of the mean. 14. Draw two diagrams that show the food chains for both the experimental and control plots. Include increase. interactions among predatory beetles (if present), ants, caterpillars, and piper plants. Revised January 2018 Page 4 of 5

英検準一級です Should people trust information on the internet? でライティングしました。 添削お願いいたします。

I don't agree that people should truse information on the Internet. This essay will explain the two main reasons for my opinion Th Terms of News and online shopping The first reason is that we cante lonow that the news 75 correct. Although we are able to obtain a variery of Information, the news may have a hias. A tending may suffer to us such as There fore, I found that A tending information the big earthquake in Kumamoto. don't have to rely to everything. we For example, when The second reason is the online shopping is likely to send we buy the dress through internet, goods which we down requine. we can't know whom this dress sell by. If it were not for buying clothing ac online store, it could not have such a opportunity to purchaseing different clothing. For these reasons, I don't believe people ought not to trust information. on the Internet.

tanのグラフでこの1のときの座標を座標をもとめる理由がわかりません。教えて下さい。

y ↑ 13 √√3 π 6 π 12 π 3 LOTO 4 3 7 T33 11 6 HCEN T 17 6 T 10 23 6 TU 0

英文の並べ替えの答え教えてほしいです

Ⅳ. (1) から (5) の各問いにおいて, 1. ~ 6. の語句を並べ替えて空所を補い, 最も適当な英文 を完成させなさい。 解答は解答用紙2枚目 記述式) の所定の解答欄に(A)と ( B ) に入る語句の番号を記入すること。 (1) I like English because I feel like a different person when I am speaking it. Although it is difficult to speak well, I enjoy the challenge. Someday I hope ( ) ( A ) ( ) ( ) (B) ( ) in English. 1. even dream 5. the level 1. young people 2. acquire 5. provide 2. where 6. I can (2) Volunteering is a good thing because it teaches young adults valuable lessons about life. For one, it teaches them that charity is an investment. By helping others you also help yourself. Volunteering can also ( ) (A) ( ) (B) ) ( ( ) practical experience. 1. health 5. to 6. an opportunity 1. lacking 5. found of what roles physical activity, exercise and nutrition play. neither prevent nor manage disease. (3) There are at least four kinds of education people should get when they are young: physical education, moral education, intellectual education and nutrition education. Those ( ) (A) ( ) ( ) (B) ( ) have an understanding Without them we can 3. reach 2. in 6. interested 1. wear 5. we 3. with 2. and 6. more 3. need (4) E-mail and other SNS applications are now the primary means of communication in much of the world. While this is certainly one form of socialization, it seems to be replacing social interaction in person. As a result, more ( ) (A) ( ) ) (B) ( ) in the social skills and values that are essential to their integration into a group or community. 2. clothes 6. to (5) Presumably fashion reflects our personalities. The ( (B) ( 4. to 3. are 4. to 3. like 4. mental or physical ) ( A ) ( ) who and what we are. Many people wear clothes to try and fit in, some to impress others, and some just wear the clothes they own. Your clothing is a reflection of who you are one way or another. 4. people 4. show Basic Elements for Communication (t, 2019), 7, 35, 59, 71, 87 ( 改変)

教えて欲しいです

15 子大) (大) 大) () =) AYO 3 意味の通る英文になるように,( )内の語句を並べかえ, 全文を書きなさい。 (1) I spilled water on my computer, and it (a lot / cost/have/me/to) it repaired. (2) Would you (the test results / know / mind / me / letting) as soon as possible? (3) Beth (the documents/her assistant/put/ watched) into the safe. (4) Her pride would not (to / mistakes/her/admit/any/allow). (5) Let me use (to/help/understand / an illustration / you) my explanation. (2) こんな非常事態の最中では,食料品を手に入れるのも高くつくだろう。 (get / it / a lot / will / to / cost) food in the midst of this emergency. しているので 通りを歩いていたら、 誰かに肩をたたかれた。 As I walked along the street, I felt (shoulder/ on / pat/the / me / someone). (津田塾大) (大阪医科薬科大 ) (5) この問題に取り組もうという試みはなされていない (2) ( has / no / to / made / attempt / been) tackle this issue. 4 日本語の意味になるように,( )内の語句を並べかえ, 全文を書きなさい。 (1) 私の通っていた大学のキャンパスは大きくて、教室から教室まで歩いて15分かかりました。 (成蹊大) The campus of my university was so large that it (fifteen / me / to / took / minutes) walk from one classroom to another. (津田塾大) (6) ジェット機のおかげで、私たちはより速く長い距離を旅することができるようになりました。 Jets (enabled/ have / to / travel / us / long distances) faster. なりました。 binig siy (青山学院大 ) (獨協医科大) (3) ビジネススーツを着ると、自分をプロのように見せることもできますし、そう感じさせてくれます。 Wearing a business suit can (both/professional / feel / look / you / make/and) (神戸学院大) 日本語に合うように (拓殖大) (北海道医療大) (専修大) (武庫川女子大) (7) 生徒たちは答案を書き終えたら提出することが要求されている。 VT (東北学院大) The students (are/ hand / in / required / their / to) papers when they have finished writing them. 53

この問題が分かりません😭熱膨張の公式の使い方がよく分からなくて💦教えて下さい🙇‍♀️

136 128 熱膨張 0℃のとき, 長さ20mであった鉄製レールが, 50℃のときは, 長さ が1.2cm 伸びた。 鉄の線膨張率α [1/K] を求めよ。 ➡134

①②答えお願いします。

10 Ms. Sato: Fashion is changing. Big companies produce more clothes more quickly with less money. This has the greatest STUDY IT! impact on the environment and people. Moe: But if clothes are cheaper, it's better. Ms. Sato: No, it's not. That's the most difficult STUDY IT! CORBID p.95 problem. Take T-shirts made from cotton. In some countries, a lot of chemicals are used in cotton fields and many children have to work there.

clothes are always interesting to study このto studyって何用法ですか？