答え4だったのですが何故ですか？

たo/@Ve/ YOの bee ]ast 200 years, people have begun to live longer and longer. This trend more_economnically developed countries。and for some time there Was a growng gap _between_the average_length of jife in rich countries and poor countries/Oyer the Dast few decades、however。 many Poor countries have also made improvements and they are now close to catching up with the wealthier ones. As a result every year there is a 8rowing number of older people in countries all over the world. It is a good thing that people are living longer, but it does have some diffcult aSpects. One of these is that more and more people are suffering from diseases aSsociated with getting older. The number of cases of high blood pressure, heart disease, cancer, and other inesses is increasing, In Australia, for instance。 a recent report said fhat people, on average, live 25 years longer than fhey did a hundred years ago.| Now, there are many more people suffering from serious illnessesOne consequence 3S that each year countries have to spend more and more on medical care foOr Older People. 4 IMany governments have begun to promote healthier lifestyles fo young people, such as losing weight and exercising regularly。as a Way to preventiSerious illnesses、 However as the body gets older, even people who haw have lived healthily are Hikely to become 井. Recentiy。research has begun 10 shoW that 了 this is the result of people's DNA gsetting older. When DNA breaks down, Important iR to control the body's functions is lost. Eventually, serious imesses mmay OCCUT However, David Sinclair,a researcher at the University oNew South Wales im Australia,、 is working on a way to keep DNA healthy。 He used a chemical called nicotinamide mononucleotide (NMN) to see 辻 he could reduce the efects of age on mice. Mice thaf were given NMN became stronger and healthier than they, had been Showing that the chemical was effective./He believes that one day this Lco both longer and make a medicine_for_hunaans. In this Way, Old people may be able to 1 healfhier lives.

30番が4番になるのが分かりません どこから分かりますか？

たo/@V@/ YOu/9 Over the 1ast 200 years, people have begun fo Hive longer. and longer. This trend began in the more economically developed countries。and for some time there was a growing gap_between the_average_length of life in rich countries and poor countries/Oyer the past few decades、 however, many Door countries have also made improvements and they are now close to catching up With the wealthier ones. As a result。 every year there js a growing number of older people in countries all over the World. It is a good thing that people are living longer, but it does have some df折cult aspects. One of these is that more and more people are suffering 所orn diseases aSSociated with getting older. The number of cases of high blood pressure, heart disease。 cancer。 and other illnesses is increasing/ m Australia, for instance, 2 Tecent rcpomt said fhat people, on average, live 25 years longer than they did a hundred ) ow。 there RY more people suffering from serious illnesses/One coi have to spend more and more on medical care for o Many governments have begun to promote as losing weight and exercising regularly, Sa as fhe body gets older, even people who have Recently, research has begun to show that 人 older. When DNA breaks down, inmportant inform lost. Eventually, serious illnesses may occuki 舞 However。 David Sinclair。a TeSe の Australia、is working on a way 0 nicotinamide mononucleotide (NMN) IMice that Were given NMNb that the chemical was effctive _make a medicine_for_hummans. healthier liVes.

画像1の丸で囲んだ式について 画像2…正答 画像3…自分の解答(間違っています) 解き方がわからないです。またどこが間違っているのかも教えてほしいです。 宜しくお願い致します🙇‍♂️💦

解き方が途中からわからなくなりました。教えて下さい。宜しくお願い致します🙇‍♂️💦

添削してほしいです。 174番です。 特に右辺の変形が合っているか不安です、宜しくお願い致します🙇‍♂️💦

画像1…問題 [172] 画像2…わからないけれど途中まで書いてみた自分の解答 解き方がわかりません。教えて欲しいです、宜しくお願いします🙇 正答は「定義域x<1、値域y≧－1」です

高2の数2の図形と方程式なのですが途中式,答えの2つとも教えてください！

高2の軌跡と領域の問題です 解き方がいまいちよく分からないので途中式,答えの2つとも教えて欲しいです！写真見にくくてすみません🙇

空欄をどのように埋めたらいいのですか？

ニューグローバル(不等式) 画像1…問題(23)、画像2…解説(23) 解説を何度読んでもよくわかりません。この問題のもっとわかりやすい解き方はないでしょうか。あれば教えて欲しいです、宜しくお願いします🙇

ん 26 るとき, これらの整数 昌還還 /アてら/C7ぐの 22" 5%の食塩水と 159 できる食塩水の濃周 以上何 g 以下混旨 23 | -2x十引記 ーー の最小値を求め訴議識 2イプ* 2 つの不等葉 2ァ一?