giải giúp mik vs ạ!
giúp mik với ạ mik cần gấp. GIẢI CỤ THỂ GIÚP MIK vs ạ
`@` `\text {Ans}`
`\downarrow`
`4,`
Vì `\text {MN // BC}`
`=>` $\widehat {B} = \widehat {BMN} = 114^0 (\text {2 góc đối đỉnh})$
Ta có: \(\left\{{}\begin{matrix}\widehat{\text{BMN}}+\widehat{\text{AMN}}=180^0\left(\text{2 góc kề bù}\right)\\\widehat{\text{CNM}}+\widehat{\text{ANM}}=180^0\left(\text{2 góc kề bù}\right)\end{matrix}\right.\)
`=>`\(\left\{{}\begin{matrix}\widehat{\text{AMN}}=180^0-114^0=66^0\\\widehat{\text{ANM}}=180^0-130^0=50^0\end{matrix}\right.\)
Xét `\Delta AMN`:
\(\widehat{\text{A}}+\widehat{\text{M}}+\widehat{\text{N}}=180^0\left(\text{định lý tổng 3 góc trong 1 tgiac}\right)\)
`=>`\(\widehat{\text{A}}+66^0+50^0=180^0\)
`=>`\(\widehat{\text{A}}=180^0-66^0-50^0=64^0\)
Mà \(\widehat{\text{A}}=\widehat{\text{x}}\)
`=>`\(\widehat{\text{x}}=64^0\)
Vậy, số đo của góc `x = 64^0.`
MN ơi giúp mik vs mai mik thi í bạn nào biết giải giúp mik vs ạ :((
Giải giúp mik vs ạ (giải thik tùng câu giúp mik ,mik cảm ơn )♡♡
giúp mik vs giải rõ ra giúp mik vs ạ
3x(x – y) + x – y
\(3x\left(x-y\right)+x-y\)
\(=3x\left(x-y\right)+1\left(x-y\right)\)
\(=\left(x-y\right)\left(3x+1\right)\)
\(=\left(x-y\right)\left(3x+1\right)\)
Mik đang cần gấp giúp mik giải vs ạ! Mik cảm ơn ạ!
1 are
2 am
3 is
4 are
5 are
6 are
7 is
8 is
9 is
10 are
IV
1 is writing
2 are losing
3 is having
4 is staying
5 am not lying
6 is always using
7 are having
8 Are you playing
9 are not touching
10 Is - listening
11 Is- winning
12 am not staying
13 is not working
14 is not reading
15 isn't raining
16 am not listening
17 Are they making
18 Are you doing
19 Is - sitting
20 is - doing
21 are-putting
22 are-wearing
23 is-studying
2, am
3, is
4,are
5,are
6,are
7,is
8,is
9,is
10,are
IV
1,2,7 OK
3,is having
4,has stayed
5,am not lying
6,always uses
8,Are-playing
9,not to touch
10,Is-listening
11,Are-winning
12,am not staying
13,isn't working
14,isn't reading
15,isn't raining
16,am not listening
17,Are-making
18,Are-doing
19,Is-sitting
20,is-doing
21,do-putting
22,do-wear
23,is-studying
Giải gấp giúp mik vs ạ
Mik cảm ơn trước ạ
1)
\(4Fe+3O_{2\left(dư\right)}\xrightarrow[]{t^o}2Fe_2O_3\)
\(Fe_2O_3+6HCl\rightarrow2FeCl_3+3H_2O\)
\(FeCl_3+3KOH\rightarrow Fe\left(OH\right)_3\downarrow+3KCl\)
\(2Fe\left(OH\right)_3\xrightarrow[]{t^o}Fe_2O_3+3H_2O\)
\(Fe_2O_3+CO\xrightarrow[]{500-600^oC}2FeO+CO_2\)
/ 2x - 3 / = 3 - 2x
Các bạn ơi giải giúp mik bài này vs ạ! Đáp án của bài này là S = {x ∈ R / x =< 3/2} mà mik ko biết cách giải ạ! Ai biết giúp mik vs! Thanks nhiều!
\(\left|2x-3\right|=3-2x\)
\(ĐK:x\le\dfrac{3}{2}\)
\(\Leftrightarrow\left[{}\begin{matrix}2x-3=3-2x\\3-2x=3-2x\end{matrix}\right.\)
\(\Leftrightarrow\left[{}\begin{matrix}x=\dfrac{3}{2}\\0=0\left(đúng\right)\end{matrix}\right.\)
Vậy \(S=\left\{x\in R;x=\dfrac{3}{2}\right\}\)
Giải giúp mik vs ạ! Mik cảm ơn
2 do
3 usually buy
4 press
5 enjoy
6 has
7 goes
8 gets
9 eat
10 doesn't study
11 doesn't eat
12 doesn't water
13 don't go
14 doesn't eat - is
15 Do - go
16 Do - agree
17 Do you have
18 Do you often eat
19 Does - start
20 does he come
21 does - work
22 does
23 does - do
24 does- go
Giải giúp mik vs ạ mik cảm ơn
Giải giúp mik vs ạ mik cần gấp
My grandma often works in the garden in her free time.
What are you doing with the stove?
3. My grandma often works in the garden in her free time.
4. What are you doing with the stove?
3. My grandma often works in the garden in her free time.
4. What are you doing with the stove?