放物線についての質問です。黒い丸で囲んだところがなぜ成り立つのかを教えて欲しいです。

9585b2f1981a9b1fc6895fb92a57852f.png 808x8957 Conic: Equation: Equation (Horizontal) Graph (Horizontal) Equation (Vertical) Graph (Vertical) Circle Center: (h, k) (x-h)²-(y-k)² = r Same Same To get r: Additional Information y==√√²-(x-h)² + k Parabola Vertex: (h, k) x= a(y-k)² +h or x-h=a(y-k)² or b(x-h)=(y-k)² (Positive Coefficient) D: x= V P P F y=a(x-h)² +k or y-k=a(x-h)² V 2p or b(y-k)=(x-h)² (Positive Coefficient) 2p D: y= For x-h=a(y-k): 1 1 a= p=40 4p For b(x-h)=(y-k)²: b b=4p; P=4 p=focal length Negative Coefficients: Flip parabola https://i.pinimg.com/originals/95/85/b2/9585b2f1981a9b1fc6895fb92a57852f.png Ellipse Center: (h, k) a always larger than b 今までの2次関数と同じ! y=2x² →x²=54 ?P=& (x-h)²(y-k)² +(x-k)² Horizontal: Focus (P/O) # y²4ex, XFP Vertral: focus (P₁0) (y=+x²) x²= Apy youp is directrix b² Co-V Co-V b C Co-V (x-h)²+(-k)=1 (x−h)²_(y-k)² a² C a directrix, a X V b =1 c²=a²-b² F Co-V Hyperbola Center: (h, k) a always before the "-" (x-h)²_(y-k)² a² (Diago) Asymptotes: Ty=-p 8/21/22 午後 5:24 q² y-k=±=(x-h) Co-V b² Co-V -=1 a Co-V (y-k)²_(x-h)² 6² Asymptotes: y-k=±(x-h) =1 c²=a² +6² Co-V 1/1ページ

45の(2)教えて頂けると助かります。よろしくお願いします🙇‍♀️

110 第1章 場合の数と確率 □ 44 男子4人, 女子4人が男女交互に1列に並ぶ方法は何通りあるか。 □ 45 equations という単語の文字をすべて使って順列を作るとき, 次の問いに えよ。 (1) 少なくとも一端に子音の文字がくるものは何通りあるか。 (2) e との間に文字が2つあるものは何通りあるか。 例題 8 A, B, C, D, E の5文字をすべて使ってできる順列を, ABCDE を 1番目として, 辞書式に並べるとき, 次の問いに答えよ。 (1) 15 番目の文字列を求めよ。 (2) CBEAD は何番目の文字列か。 指針 ABCDE, ABCED, ......, BACDE, BACED, ..... EDCBA と並ぶ。 適当なとこ ろで区切って個数を数える。 (1) ABOOO, AC○○○の形の文字列は,それぞれ 3!=6 (個ずつある。 よって, 15番目の文字列はADO○○の形の文字列の3番目である。 (2) CBEAD の前に並ぶ文字列は,次の形である。 CD

高校数学Aです 大問45の(2)、解説を見ると、式が　7P2✖️6！✖️2 となっているんですがなぜ✖️2するのですか？

45 equations という単語の文字をすべて使って順列を作るとき, 次の問いに 答えよ。 (1) 少なくとも一端に子音の文字がくるものは何通りあるか。 (2)eとaの間に文字が2つあるものは何通りあるか。 るから -7･6・5・4・3･2･1 (通り) 2,3,4の4通りの数字を 順列であるから それぞれ3通りある。 り) まとめにする。 生徒5人 方は6通り 人の並び方は 3! 通り -2.1×3.2.1 り) は 5P2通り び方は 6! 通り 3・2・1=14400 (通り) 45 (1)母音は5文字, 子音は4文字ある。 9 文字全部の順列は 9! 通り 両端に母音の文字を並べる方法は 5P2通りで, そのおのおのに対して, 残り 7文字の順列は 7! 通りあるから, 両端に母音の文字がくる順列 は5P2×7! 通り よって, 少なくとも一端に子音の文字がくる順 列は 9!-5P2×7!=9!-20-7! =7!(9.8-20) =5040.52 =262080 (通り) (2) まず, e○○の○○に2文字を並べる方法は 7P2通り そのおのおのに対して, e○○a をひとかたまり とみて、これと残りの5文字を並べる方法は 6! 通り a○○e の場合も同様に考えることができる。 よって, e との間に文字が2つある順列は 7Px6!×2=42x720x2 = 60480 (通り) 数学A A・B・C問題 の

170 なぜ②になるのでしょうか？ This is where という熟語ですか？

170 You are saying that everyone should be equal, and this is | disagree. ⓘ what ② where ③ which ④ whom <東邦 大〉 ② 訳だれもが平等であるべきだとあ なたは言っているが,ここが私の同 意できない部分だ。

解答お願いします 2枚目の画像を参考にします

cal 50 Work It Out Fill in the blanks with correlative conjunctions. 1 The child wants neither cheesecake 2 Benjamin can ice cream. play basketball and in-line skate well. Prague Square or Charles Bridge. 3 We'll go to 4) I like to watch both action movies romances. She has a desktop nor a laptop. B Read the passage and fill in the blanks with correlative conjunctions. she and I like to eat My best friend Janet and I have a lot in common. pasta. We eat a - pizza nor hamburgers. We like to either sing karaoke go to the movies in our leisure time. We always choose comedy or horror movie to see at the movie theater. We really want to go to Central Park and Times Square during our summer vacation. Because we have so much in common, we've decided to become roommates. Check the correct answers. 1 Either my father or my mother ( is/are ) going to the supermarket. 2 Neither the webcam nor the speakers ( is/are ) broken. 3 Neither Sarah nor 1 (want/ wants) to go shopping with them. Both Spanish and German ( are / is) taught in this high school. 5 Either Sam or his friend ( have / has ) eaten the cake. D Combine the sentences based on the hints given. 1 My roommate doesn't have a notebook. / I don't have a notebook. (neither ... nor ... ) 2 Tom Hanks may be the leading actor of the movie. / Tom Cruise may be the leading actor of the movie. (either ... or...) 3 Paul invited me out for dinner tonight. / Peter also invited me out for dinner tonight. (both ... and ...) UNIT 05 WHAT'S ON YOUR PLAYLIST?

このプリントの日本語訳を教えてください

未習長文D インフォメーションリスト |adopt medicine to start to deal with or think about something ina particular wav 1. a substance used for treating an illness, especially a liquid you drink the treatment and study of illnesses and injuries 2. to depend on someone to provide help, advice, etc. to think that you are better than someone else, for example because you are more sucessful, or of a higher social lass than they are fair and sensible look to look down on reasonable can/could afford people were better off using It would be better for people to use traditional traditional medicine rather than medicine rather than having no medicine. no medicine at all. establish to have enough money to buy or pay for something to start a company, organization, system, etc. that is intended to exist or continue for a long time 1.(n) the work of a doctor or lawyer, or the place where they work 2.(v) to use a particular method or custom the act of starting an organization, relationship, or system the process or fact of being received as adequate, valid, or suitable practice establishment acceptance a small creature such as a fly or ant, that has six legs, and sometimes wings anything that is living, such as an animal, fish, or insect, but not a plant a plant like a small onion, used in cooking to give a strong insect creature garlic taste bacteria very small living things, some of which causes illness or disease a chemical substance found in your blood. cholesterol in your blood may cause heart disease. to absorb something into the body, for example by breathing or swallowing a scientific test done to find out how something reacts under certain conditions, or to find out if a particular idea is true (v) to make something less dense or numerous look at something again closely if someone has a stroke, an artery (tube carrying blood) in their brain suddenly bursts or becomes blocked, so that they may not real or not made of natural things but made to be like something that is real or natural a substance used in chemistary or produced by achemical cholesterol Too much take in experiment thin take a second look at stroke die or be unable to use some muscles artificial chemical process to help to make something happen to help to make something happen Contribute think highly of o place Migh value on

因数分解です。 途中までは解けたのですが、この続きが分かりません 教えて欲しいです🙇‍♂️🙇‍♂️ 英語の意味は答えを出して、1番大きい答えと1番小さい答えを書け です。±を両方解くってことだと思います。

O and the larger answer in the space to the right. Round Determine the SOLUTIONSto the quadratic equation below.Type the smaller answer in the space to the left your answer to the nearest thousandth, if necessary. Answers may be typed asfractions as well. 0 = x? + 4x --8 2 Smaller Larger Answer Answer QUADRA,

この英文のit's only〜the arctic circle までの和訳がわかりません、特にor so that の部分の構造がよくわかりません、教えてください🙇‍♀️

The results, published in the journal Biology averaging 1,484 milliliters, were from Scandinavia, while the smallest brains, around 25 1,200 milliliters, came from Micronesia. The average eye size was 27 milliliters in Scandinavia and 22 milliliters in Micronesia. Professor Dunbar concluded that the increase in brain volume must have evolved relatively recently in human history. He added, "It's only within the last 10,000 years or so that modern humans have occupied Bif all latitudes right up to the Arctic Circle. So, this is probably this is probably a development that's 過去、最終 (3). (4) happened within the last 10,000 years." * latitude [ equator [Arctic Circle []

このマーカー部分の訳がわかりません、 theyは誰のことですか？asociatedとありますが何と何を結びつけたのですか？ 教えてください🙇‍♀️

Professor Robin Dunbar, also from Oxford University and a co-author of the study, said that people whose ancestors lived within the Arctic Circle* have eyeballs 20% bigger than people whose ancestors lived near the equator. They have an associated increase in the size of the visual part of the brain, which previous studies 20 have shown matches with the size of the eyeball. Brain volume increases with latitude: shown match people living at high latitudes north and south of the equator have bigger brains than people living near the equator. The results, published in the journal Biology Letters, showed that the biggest brains.

式を求める問題。 bの問題の、(60-3t)の3tがどこから来たのかが分かりません。出来るだけ、分かりやすい説明をお願いします。 海外在住のため問題が英語なので、問題を訳したものを下に貼っておきます。 よろしくお願いします☺️ ジャッキーは運動が好きで、1日... Read More

305. Jackie enjoys exercise and plans to walk, jog and cycle for a total of 60 minutes a day. Every minute Jackie jogs she uses 11 kilojoules of energy. She walks for twice as long as she jogs and uses 5 kilojoules per minute while walking. a) If Jackie spends t minutes jogging what is her total energy use jogging and walking? Encou = it+ 2tx5 The rest of the 60 minutes Jackie cycles and uses 8 kilojoules per minute of cycling. b) Form an equation in t showing the amount of energy Jackie uses on her 60minute exercise. t=10 Enegu- 2it 860-3E))