Bích Phương Nguyễn
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Đã trả lời
Cho Tam giác ABC nhọn có hai đường cao AD và BE cắt nhau tại H .chứng minh
a)Tứ giác BHEC nội tiếp
(Giải giúp em với ạ em đang cần gấp)
a)Tứ giác BHEC nội tiếp
(Giải giúp em với ạ em đang cần gấp)
Trả lời (1)
21:03 06/07/2023
Rút gọn biểu thức căn 25(y-6) với y>6 được kết quả là
A.-5(y-6). B.5(y-6). C.25(y-6). D.25(y-6)
A.-5(y-6). B.5(y-6). C.25(y-6). D.25(y-6)
Trả lời (1)
20:03 04/07/2023
Bài 1
Cho đường thẳng d song song với đường thẳng d1 : y=3x+5 hệ số góc của đường thẳng d là
A.-5. B.5. C.-3. D.3
Bài 2
Cho Tam giác ABC vuông tại A,đường cao AH.Hệ thức nào sau đây là đúng?
a.AB^2=BH.BC b.AB^2=CH.BC. c.AH^2=HB.AC. d.AC^2=HC.AB
Cho đường thẳng d song song với đường thẳng d1 : y=3x+5 hệ số góc của đường thẳng d là
A.-5. B.5. C.-3. D.3
Bài 2
Cho Tam giác ABC vuông tại A,đường cao AH.Hệ thức nào sau đây là đúng?
a.AB^2=BH.BC b.AB^2=CH.BC. c.AH^2=HB.AC. d.AC^2=HC.AB
Trả lời (1)
19:28 04/07/2023
*Đề bài : Viết một đoạn văn ngắn khoảng 200 chữ trình bày suy nghĩ về hiện tượng miệt thị ngoại hình của giới trẻ hiện nay
Trả lời (2)
12:58 01/07/2023
a. |_2x-5y=-3
|
|_-4x+y=-3
B) 3x^4-9x^2=0
C) 3x^4-6x^2-9=0
|
|_-4x+y=-3
B) 3x^4-9x^2=0
C) 3x^4-6x^2-9=0
Trả lời (2)
14:51 29/06/2023
|_3x-5y=-4
|
|_-6x+y=-10
|
|_-6x+y=-10
Trả lời (1)
21:15 28/06/2023
In the future,paper books_____by books in electronic formats
A will replace B will be replaced
Trả lời (2)
16:01 28/06/2023
Fill in the correct from of the words
1.It was raining so_____that we spent the evening at home(HEAVY)
2.The____of the new art gallery is tomorrow (OPEN)
3.You should______thií skirt ; it’s too old-fashioned like that(SHORT)
4.the smiths____their son to get a university degree(COURAGE)
5JACK’s fans didn’t like her last CD.In fact,it was a complete_____(FAIL)
6.WE don’t understand why they do such____things(FOOL)
7.Can you____what you’ve said,please?(REPEETITION)
8.What I’ve just told you is____important;don’t forget it(EXTREME)
9.Passengers have to wait in the____lounge(DEPART)
10.What a____pasty you’ve had(LOVE)
11.The____didn’t accept the company’s offer(EMPLOY)
12.What do you think of Pete’s____to work with us?(REFUSE)
13.It’s___to book a table;it’s a popular restaurant(ADVISE)
14.Come here___,Mrs Jones!(IMMEDIATE)
15.The____of the congress want to thank both the speakers and the_____(OEGANIZE/PARTICIPATE)
16.The students were really____to know their exam results(PATIENT)
17. The first holiday with my friends was an____experience.I enjoyed all of it(FORGET)
18Don’t be so____!It’s impossible!(CHILD)
19 My favorite ______is Mozart(COMPOSE)
20 I’m sorry but I completely____with you.I think your opinion is not good enough(AGREE)
1.It was raining so_____that we spent the evening at home(HEAVY)
2.The____of the new art gallery is tomorrow (OPEN)
3.You should______thií skirt ; it’s too old-fashioned like that(SHORT)
4.the smiths____their son to get a university degree(COURAGE)
5JACK’s fans didn’t like her last CD.In fact,it was a complete_____(FAIL)
6.WE don’t understand why they do such____things(FOOL)
7.Can you____what you’ve said,please?(REPEETITION)
8.What I’ve just told you is____important;don’t forget it(EXTREME)
9.Passengers have to wait in the____lounge(DEPART)
10.What a____pasty you’ve had(LOVE)
11.The____didn’t accept the company’s offer(EMPLOY)
12.What do you think of Pete’s____to work with us?(REFUSE)
13.It’s___to book a table;it’s a popular restaurant(ADVISE)
14.Come here___,Mrs Jones!(IMMEDIATE)
15.The____of the congress want to thank both the speakers and the_____(OEGANIZE/PARTICIPATE)
16.The students were really____to know their exam results(PATIENT)
17. The first holiday with my friends was an____experience.I enjoyed all of it(FORGET)
18Don’t be so____!It’s impossible!(CHILD)
19 My favorite ______is Mozart(COMPOSE)
20 I’m sorry but I completely____with you.I think your opinion is not good enough(AGREE)
Trả lời (1)
18:02 01/06/2023
1.If he sun ( stop)_____shinning,there(be)____no light on earth
2.If I(be)____a millionaire, I (live)____on Mars
3.I wish I(be)____an astronaut in the future
4.I can’t swim.I wish I(cam)____swin
5.I wish I (meet)____her yesterday
6.she wishes she(be)____there last year
7.I wish you(not give)_______them my phone number yesterday
8.Tom wishes someone(give)_____him a job next month
9.If They(invite)______yesterday,I(be)____iss a good day tomorrow
10.We (go)___swimming if it(be)___a good day tomorrow
11. if the weather (be)____nice last day,I(go)____for a walk
12.My dog always barks if he(hear)___anything unusual
13.Iff he (not/do)____come soon , I’m not going to wait
14.If the phone(ring)____,can you answer it?
2.If I(be)____a millionaire, I (live)____on Mars
3.I wish I(be)____an astronaut in the future
4.I can’t swim.I wish I(cam)____swin
5.I wish I (meet)____her yesterday
6.she wishes she(be)____there last year
7.I wish you(not give)_______them my phone number yesterday
8.Tom wishes someone(give)_____him a job next month
9.If They(invite)______yesterday,I(be)____iss a good day tomorrow
10.We (go)___swimming if it(be)___a good day tomorrow
11. if the weather (be)____nice last day,I(go)____for a walk
12.My dog always barks if he(hear)___anything unusual
13.Iff he (not/do)____come soon , I’m not going to wait
14.If the phone(ring)____,can you answer it?
Trả lời (2)
13:09 30/05/2023
Bài 1:Vẽ đồ thị
y = 2x bình phương và y = -x+1
y = 2x bình phương và y = -x+1
Trả lời (3)
08:28 30/05/2023
Cho phương trình x^2-2(m+1)x+m^2=0 (m là tham số,x là ẩn số) tìm giá trị của m để phương trình đã cho có hai nghiệm dương phân biệt x1,x2
Trả lời (1)
15:50 29/05/2023
a)√ 4x-3 = 1
b) √ x+3 = 6
c) √ x+3/2 = 8
d) √ 4x-8 = 0
b) √ x+3 = 6
c) √ x+3/2 = 8
d) √ 4x-8 = 0
Trả lời (2)
21:58 28/05/2023