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27 tháng 2 2022

Cho tam giác ABC, AB<AC.Tia p/g của góc A cắt BC ở D, trên tia AC lấy điểm E sao cho AE=AB. Gọi tia M là giao điểm của AB va DE
Cmr:

a) tam giác ABD=tam giacd AED         b) tam giacd DBM=tam giác DEC

Nếu chuyển kho t2 sang t1 là 400 tấn thì kho t1 hơn kho t2 là :

                  400.2-200=600(tấn)

Thực tế kho t1 có :

                  600:3.8-400=1200(tấn)

Thực tế kho t2 có :

                 1200+200=1400(tấn)

HT

27 tháng 2 2022

1400 tấn ạ 

25 tháng 2 2022

= ( x^2+7x +10 )(x^2+7x+12)-24

= (x^2+7x)^2+22(x^2+7x)+96

=(x^2+7x+6)(x^2+7x+16)

=(x+1)(x+6)(x^2+7x+16)

k nha nếu sai k sai 

ht

25 tháng 2 2022

tui hơm ít

1 tháng 3 2022

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1 tháng 3 2022

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(2x+1)(3-x)(4-2x)=0

2x+1=0 hoặc 3-x=0 hoặc 4-2x=0

2x=-1                 x=3            2x=4

x=-1/2                                    x=2

Vậy \(x\in\left\{-\frac{1}{2};3;2\right\}\)

_HT_

24 tháng 2 2022

( 2x+1 ) ( 3-x ) ( 4-2x ) = 0

2x+1=0 hoặc 3-x=0 hoặc 4-2x=0

2x=-1              x=3                 2x=4

X=-1/2                                   x=2

Vậy \(X\in\left\{-\frac{1}{2}:3:2\right\}\)

_HT_

Giúp mik với. Mik cảm ơnExercise 4: Ordering the following words or phrases into the meaningful sentences.6. be doing / Will /she /at 10 P.M/ the housework/ tomorrow? .................................................................................................................................................................................7. tomorrow/ be going/ At this time/ shopping /I /will/ in...
Đọc tiếp

Giúp mik với. Mik cảm ơn

Exercise 4: Ordering the following words or phrases into the meaningful sentences.
6. be doing / Will /she /at 10 P.M/ the housework/ tomorrow? 
.................................................................................................................................................................................
7. tomorrow/ be going/ At this time/ shopping /I /will/ in Singapore.
.................................................................................................................................................................................
8. At/ tomorrow/ will/10 A.M /be cooking/ my mother/  lunch.
.................................................................................................................................................................................
9. next Saturday/ on the beach/ at this time /in Mexico/ will/ be/ we /relaxing
.................................................................................................................................................................................
10. climbing /We / be /at this/ on the mountain/ will /time /next Saturday.
.................................................................................................................................................................................
11. At 12/ my friends/ at school /I /will /o’clock tomorrow/ be/ and/ having lunch/.
.................................................................................................................................................................................
12. you /When/ come / tomorrow, playing/ they/  be /tennis /will.
.................................................................................................................................................................................
13. will be/ She / for me/ arrive /when/ I /waiting/ tomorrow.

0
Giúp mik với ạ, mik cảm ơn rất nhiềuExercise 4: Ordering the following words or phrases into the meaningful sentences.6. be doing / Will /she /at 10 P.M/ the housework/ tomorrow? .................................................................................................................................................................................7. tomorrow/ be going/ At this time/ shopping /I /will/ in...
Đọc tiếp

Giúp mik với ạ, mik cảm ơn rất nhiều
Exercise 4: Ordering the following words or phrases into the meaningful sentences.
6. be doing / Will /she /at 10 P.M/ the housework/ tomorrow? 
.................................................................................................................................................................................
7. tomorrow/ be going/ At this time/ shopping /I /will/ in Singapore.
.................................................................................................................................................................................
8. At/ tomorrow/ will/10 A.M /be cooking/ my mother/  lunch.
.................................................................................................................................................................................
9. next Saturday/ on the beach/ at this time /in Mexico/ will/ be/ we /relaxing
.................................................................................................................................................................................
10. climbing /We / be /at this/ on the mountain/ will /time /next Saturday.
.................................................................................................................................................................................
11. At 12/ my friends/ at school /I /will /o’clock tomorrow/ be/ and/ having lunch/.
.................................................................................................................................................................................
12. you /When/ come / tomorrow, playing/ they/  be /tennis /will.
.................................................................................................................................................................................
13. will be/ She / for me/ arrive /when/ I /waiting/ tomorrow.

0
1 tháng 3 2022

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1 tháng 3 2022

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