中3の数学です。考え方を教えてほしいです!

07/N 次の4つの数 21. 2 ✓5 5 Now a NH 2 2 を小さい順に並べなさい。 20 Layaa 答

どういうふうにxを求めていますか？ 途中式が分からないです 普通にやろうとしても難しいです

表面積(2) 例 下の図のような円錐, 正四角錐の表面積を求めな 5cm 3cm '5cm 3cm (表面積)=(底面積)+(側面積) 側面のおうぎ形の中心角を求めると I 2×52×3 360 x=216°

教えてください🙇‍♀️ 答えは2枚目です

(2)x,yについての2つの連立方程式 31 521 y IC と 28 0 + + 3 y = ax + by = 2 -5 (g) が同じ解をもつとき,解 x, y 1 bx+ay=-22回を

答えはhow should we getなのですが、なぜですか?

2 On Friday, Aya, Haruki, and Dana are talking.) Aya : Haruki: i The Tanabata festival at Akebono University is tomorrow. We'll go there around ten. But should get / we /how] there? new I'll check it. Well.... look, there are two ways to get to the university. If we *get off at Akebono Station, we'll have to walk for about fifteen minutes. But if we get off at Sakura Station, we can take a bus to Akebono University. Dana: Sakura Station TRAIN BUS Akebono Station WALKING Hikari Station Akebono University Let's see... We can take a train at 9:36. From the I'm checking the time. station to the university, the bus is faster, of course, but we'll have to wait for Station

答えはdoes something likeです。 なぜですか?

3 Ms. Kato comes in and talks to the students.) Ms. Kato: Hi, how's your *meeting going? Mike Oh, hello, Ms. Kato. All three of these activities look good. Now we're going to read the ideas as in the answer, "Other." Ms. Kato I see. That's a good idea. And why don't you try *combining some of them? Then maybe you can *create better idea. For example, if you combine "Music" and "Sports," you can create "*Rhythm exercises." Satoshi Sounds great! My grandfather [something / like / does] that every day. He says it's better for his *health than doing hard sports. Mike: Ms. Kato: *Not at all. I think you can make a good plan. Thank you, Ms. Kato. We'll try combining some other activities, too. Riho: Look, Look, this student wrote, Now let's check the ideas in the "Other" answers. "Quiz." think we can use this with some other ideas. For example, we can make a quiz about both old and new music. Mike: That's a great idea, Riho! Let's see the other ideas and think some more! [注] meetingu

どうやったらこの途中式になってこの答えになるのかが分からないので説明お願いします🙏🏻

TEAS (S) 13,2つの関数y=-2x+7とy=x2 は, æがαからa+2まで増加するときの 変化の割合が等しくなります。 このとき, αの値を求めなさい。 | (a + a + 2) = -2 za+2=2 za=-4 a=2 24 (E) C

beforeあとの時制の区別はどのようにして出来ますか

有効数字についてですが、写真の問題の答えはなぜ、5.460×10^5となるのでしょうか？ 5.46000×10^5と表さないのはなぜなのでしょうか？ご回答お願いします。

* (2) ある重さの測定値546000g の有効数字が 5,460 のとき,この測定値を (整数部分が1けた)×(10の累乗)の形で表せ。 5,460×105g

なんでエンドウは自家受粉を繰り返すと純系になっていくんですか？

無性生殖の種類の分裂って体細胞分裂ですか？