Grade

Type of questions

English Senior High

Genius2のレッスン8 give it a try 大門1の(2)と、大門2の並び替えがわかりません、、わかる方お願い致します、

approaching. You may say it's not special because there seem to be some people who can fall asleep Choose the best words for the blank from “As a result, For example, In tree and the latter, on their trunk with the ground so that they can feel when enemies are Give If a Try addition, On the other hand". Many great scientific discoveries have happened by accident or from a mistake. Isaac Newton took a nap under an apple tree, which resulted in him being hit the head by a falling apple. It was this event that gave him the idea for the law of gravity. f Alexander Fleming hadn't left a sandwich by the window of his laboratory and forgotten about it, penicillin wouldnt have been discovered then. Having been in the right place at the right time or having madea mistake and having got an unexpected result, they made these important discoveries. penicillin-ペニシリン 2 Re-write the underlined part putting the best word in ( ). ) they ( )in the right place at the right time or ( 3 4 a mistake and ( ) got an unexpected result, they made those important discoveries. 6 (2) Put the words in the boxes in the right order to complete the sentences. standing on the train, holding on to a hand strap. The way people sleep seems somehow different from that of animals, are of really strange What is unique is the way some birds sleep upside Some which. It's well-known that animals in the down, foot holding on Wild such as giraffes or elephants sleep standing up. The former, neck on their resting with a one with to a branch. This would be impossible for us, but some birds any can't fall asleep other way. Ch C

Waiting for Answers Answers: 0
Mathematics Senior High

なぜ(3)は9C2なのです?

00000 (2) 求める確率は P(AUB)であるが, 2つの事象 A, Bは「互いに排反」ではない。 (3) C:1の番号札を取り出す, D:2の番号札を取り出す とすると,求める確率は 和事象の確率 366 基本 例題43 号札を一度に取り出す。 次の確率を求めよ。 (1) 最大の番号が7以下で, 最小の番号が3以上である確率 (2) 最大の番号が7以下であるか, または,最小の番号が3以上でま (類日本女子大 p.364 基本事項 4 (3) 1または2の番号札を取り出す確率 重要46, 指 指針> (1), (2) A:最大の番号が7以下, B:最小の番号が3以上とする 2つの事象 A, Bが排反でないときは,次の 和事象の確率 で考える 解答 MA, Bは同時に起こりうる から,A, Bは排反ではな A:最大の番号が7以下, B:最小の番号が3以上とする。 (1) 求める確率は P(ANB)であり, 3, 4, 5, 6, 7 の番号札の 1 い。 中から3枚を取り出す確率に等しいから 5C3 12 U 10C。 031 ) 1 , (1)から P(ANB)= A SC。 (2) P(A)=, P(B)= 10C3' 10C3 12 よって,求める確率は P(AUB)=P(A)+P(B)-P(ANB) C3 斜線部分の確率は 8C3 10Cs' 10C3 (3) C:1の番号札を取り出す, D:2の番号札を取り出す Ca 1 35 56 10 27 三 ニ 12 120 120 120 40 (3) 別解 1または2を取り 出す事象の余事象は、最か の番号が3以上になること であるから, 求める確率は、 (2)より とすると P(C)= , P(D)=2, P(CnD)=, 10C3' 8C」 P(CND)= 10C。 10C。 率 P(CUD)=P(C)+P(D)-P(CnD). よって,求める確率は C2 10C。 SC。 1-P(B)=1- 10C。 9C2 8C」 36 -×2- 120 8_8 三 三 10C。 と ドPopSI =1- 10C3 三 120 15 56 8 120 15 練習 2つの組A Dがセ

Waiting for Answers Answers: 0