Help me if you can🥺
9/23 + 53/3 + 2/69 + (-15)
K
Khách
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Những câu hỏi liên quan
13 tháng 1 2019
1.Pollution (increase) will increase if we (use) use more oil and coal
2 The climate (change) will change if more trees (die) die.
3.If we (try) try to control pollution, it (be) will be expensive
5.If we (not control ) don't control pollution soon, it (be) will be too late.
6.If you need any more money i will lend you some.(you some)
7.You can go if you want to.
8. If the weather if fine tomorrow we will go for a picnic
9. Just ask me if you need any help
10. If anyone phones for me while i am out tell them i'll be back at 4 o'clock
11. go to bed now if you are tired
DT
Đỗ Thanh Hải
CTVVIP
18 tháng 8 2021
Tham khảo
1. Hurry up or you will be late.
→→ If you don't hurry up, you will be late.
2. She is very busy, so she can't help me now.
→→ If she wasn't/weren't busy, she could help me now.
3. You're unfit because you don't take exercise regularly.
→→ If you took exercise regularly, you would be unfit.
4. Unless you are careful, you will cut yourself with that knife.
→→ If you aren't careful, you will cut yourself with that knife.
5 Unless I have time, I won't help you
6 Dick often causes accidents because he drives carelessly.
→→ If Dick didn't drive carelessly, Dick wouldn't cause accidents.
7 I can't apply for that job because I don't know English.
→→ If I knew English, I could apply for that job.
8 Susan is overweight because she eats too much chocolate.
→→ If Susan didn't eat too much chocolate, she wouldn't be overweight.
9 His father often punishes him for his laziness.
→→ If he didn't be lazy, his father wouldn't punish him.
10 Study harder or you'll fail in the next exam.
→→ If you don't study harder, you'll fail in the next exam.
E
1 tháng 9 2021
1. If I (be) were you, I wouldn't worry about going to university.
2. If the doctor can't help me, I (go)will go somewhere else.
3. Will you phone me if there (be) are any problems?
4. If you drove more carefully, you (not have) wouldn’t have so many accidents.
5. If he (get) got up earlier, he'd get to work on time.
6. If we (have).had.................more time, I could tell you more about it.
7. If this house costs too much, I (buy)..will buy.............a smaller one.
8. If you (sell).......sold ....... more products, you'd earn more money.
9. What would you do if you suddenly (win)won.........half a million pounds?
10. His car would be a lot safer if he (buy)bought..........some new tyres.
23 tháng 2 2020
Xếp lại câu giúp em với ạ
1. promotion / he / get / must / to / dedication / show / wants / his / James / hard / If / work / , / and.
If James wants to get promotion, he must show his dedication and work hard.
2. Will / time / you / afford / come / can / to / you / my / if / house ?
Will you come to my house if your time can afford?
3. if / job / he / do / to / What / change / can / he / wants / his ?
What job he wants to do if he can change his job?
4. trouble / , / you / in / help / can / are / call / you / me / If / for
If you are in trouble, you can call me for help.
JK
1
19 tháng 4 2020
\(2x^2-x-10=0\Leftrightarrow2x^2-5x+4x-10=0\)
\(\Leftrightarrow\left(2x-5\right)\left(x+2\right)=0\)
\(\Leftrightarrow\left[{}\begin{matrix}x=\frac{5}{2}\\x=-2\end{matrix}\right.\)
22 tháng 7 2017
. dùng máy tính là ra mà bạn =))
\(x^2-\left[6^2-\left(8^2-9.7\right)^3-7.5\right]^3=89-102\)
\(x^2\left[36-\left(64-63\right)^3-35\right]^3=-13\)
\(x^2-0^3=-13\)
\(x^2=-13\)( Vô lý)
=> x không xác định
\(\dfrac{9}{23}+\dfrac{53}{3}+\dfrac{2}{69}+\left(-15\right)\)
\(=\dfrac{9.3}{23.3}+\dfrac{53.23}{3.23}+\dfrac{2}{69}+\dfrac{-15.69}{1.69}\)
\(=\dfrac{27}{69}+\dfrac{1219}{69}+\dfrac{2}{69}+\dfrac{-345}{69}\)
\(=\dfrac{903}{69}\)
\(=\dfrac{301}{23}\).