four faces of the cuboid fish tanks are made of 72 dm2 of glass(the bottom and the top face are not included).find the area of the bottom face of the fish tank,given that it's height is 3 dm and the d...

PT

Phạm Thị Phương Trinh

6 tháng 3 2017

In order to increase the volume of a cuboid tank, people increase the length of the tank and keep the width and the height unchanged. The area of the base increases by 75 % and the tank can contain 1500 more liters of water. Find the volume of the tank before change ?

#Toán lớp 5

0

NT

Nguyễn Thị Hòa An

12 tháng 2 2017

In order to increase the volume of a cuboid tank , people increase the length of the tank and keep the width nd the height unchanged . The area of the base increase by 75% and the tank can contain 1500 more liters of water . Find the volume of the tank before change?

#Toán lớp 6

0

VV

vân vũ

29 tháng 10 2023

A lateral surface area for a cubooid is 390 cm² while the bottom area of the rectangle is 40 cm². Not only that , the perimeter of bottom is 26 cm. What is the volume of the cuboid ?

#Toán lớp 6

2

LN

Lưu Nguyễn Hà An

VIP

29 tháng 10 2023

Dịch: Diện tích xung quanh của hình lập phương là 390 cm ² trong khi diện tích đáy của hình chữ nhật là 40 cm ² . Không những vậy, chu vi đáy là 26 cm. Thể tích của hình lập phương là bao nhiêu?

LK

Lê Khánh Ngọc

29 tháng 10 2023

Dịch: Diện tích xung quanh của hình lập phương là 390 cm 2 trong khi diện tích đáy của hình chữ nhật là 40 cm 2 . Không những vậy, chu vi đáy là 26 cm. Thể tích của hình lập phương là bao nhiêu?

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions. As a result of pollution, Lake Erie, on the borders of the USA and Canada, is now without any living things. Pollutions in water are not simply a matter of “poisons” killing large numbers of fish overnight. Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or...

LQ

Lê Quỳnh Anh

9 tháng 12 2018

1

DH

Dương Hoàn Anh

9 tháng 12 2018

Đáp án D

Ô nhiễm chỉ được chú ý tới ______.
A. khi sinh vật đầu tiên bị ảnh hưởng.
B. ngay sau khi sự cân bằng tự nhiên bị phá hủy.
C. khi chất độc bị đổ xuống nguồn nước.
D. khi nhiều loài cá và chim bị chết.
Dẫn chứng câu 3-5 đoạn 1: “Very often the effects of pollution are not noticed for many months or years because the first organisms to be affected are either plants or plankton. But these organisms are the food of fish and birds and other creatures. When this food disappears, the fish and birds die in this way a whole food chain can be wiped out, and it is not until dead fish and water birds are seen at the river’s edge or on the sea shore that people realize what is happening” – (Những tác động thường xuyên của ô nhiễm không được chú ý tới trong vài tháng, thậm chí là vài năm bởi sinh vật đầu tiên bị ảnh hưởng chỉ là các loài thực vật hoặc các sinh vật phù du. Nhưng đối với những sinh vật làm thức ăn cho cá, chim hoặc và loài sinh vật khác. Khi chúng biến mất thì cá, chim cũng chết theo như cách mà 1 chuỗi thức ăn bị xóa sổ, và cho đến khi xác chết chim, cá được nhìn thấy trên mặt hồ hoặc bờ biển thì con người mới nhận thức được rằng điều gì đang xảy ra).

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions The Native American peoples of the north Pacific Coast created a highly complex maritime culture as they invented modes of production unique to their special environment. In addition to their sophisticated technical culture, they also attained one of the most complex social organizations of any nonagricultural people in the world. In a division of labor...

LQ

Lê Quỳnh Anh

17 tháng 11 2018

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions

The Native American peoples of the north Pacific Coast created a highly complex maritime culture as they invented modes of production unique to their special environment. In addition to their sophisticated technical culture, they also attained one of the most complex social organizations of any nonagricultural people in the world.

In a division of labor similar to that of the hunting peoples in the interior and among foraging peoples throughout the world, the men did most of the fishing, and the women processed the catch. Women also specialized in the gathering of the abundant shellfish that lived closer to shore. They collected oysters, crabs, sea urchins, mussels, abalone, and clams, which they could gather while remaining close to their children. The maritime life harvested by the women not only provided food, but also supplied more of the raw materials for making tools than did fish gathered by the men. Of particular importance for the native tool than did the fish gathered by the men. Of particular made from the larger mussel shells, and a variety of cutting edges that could be made from other marine shells.

The women used their tools to process all of the fish and marine mammals brought in by the men. They cleaned the fish, and dried vast quantities of them for the winter. They sun-dried fish when practical, but in the rainy climate of the coastal area they also used smokehouses to preserve tons of fish and other seafood annually. Each product had its own peculiar characteristics that demanded a particular way of cutting or drying the meat, and each task required its own cutting blades and other utensils.

After drying the fish, the women pounded some of them into fish meal, which was an easily transported food used in soups, stews, or other dishes to provide protein and thickening in the absence of fresh fish or while on long trips. The women also made a cheese-like substance from a mixture of fish and roe by aging it in storehouses or by burying it in wooden boxes or pits lined with rocks and tree leaves.

All of the following are true of the north Pacific coast women EXCEPT that they

A. were more likely to catch shellfish than other kinds of fish

B. contributed more materials for tool making than the men did

C. sometimes searched for food far inland from the coast

D. prepared and preserved the fish

1

DH

Dương Hoàn Anh

17 tháng 11 2018

Đáp án C

Tất cả những điều sau đây đúng với phụ nữ bờ biển phía bắc Thái Bình Dương NGOẠI TRỪ rằng họ

A. có nhiều khả năng bắt động vật có vỏ hơn các loại cá khác

B. đóng góp nhiều vật liệu hơn cho việc chế tạo công cụ hơn là những người đàn ông đã làm

C. đôi khi tìm kiếm thức ăn xa nội địa từ bờ biển

D. chuẩn bị và bảo quản cá

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42. The Native American peoples of the north Pacific Coast created a highly complex maritime culture as they invented modes of production unique to their special environment. In addition to their sophisticated technical culture, they also attained one of the most complex social organizations of any nonagricultural people in the world....

LQ

Lê Quỳnh Anh

3 tháng 10 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

The Native American peoples of the north Pacific Coast created a highly complex maritime culture as they invented modes of production unique to their special environment. In addition to their sophisticated technical culture, they also attained one of the most complex social organizations of any nonagricultural people in the world.

In a division of labor similar to that of the hunting peoples in the interior and among foraging peoples throughout the world, the men did most of the fishing, and the women processed the catch. Women also specialized in the gathering of the abundant shellfish that lived closer to shore. They collected oysters, crabs, sea urchins, abalone, and clams, which they could gather while remaining close to their children. The maritime life harvested by the women not only provided food, but also supplied more of the raw materials for making tools than did fish gathered by the men. Of particular importance for the native tool than did the fish gathered by the men. Of particular made from the larger mussel shells, and a variety of cutting edges that could be made from other marine shells.

The women used their tools to process all of the fish and marine mammals brought in by the men. They cleaned the fish, and dried vast quantities of them for the winter. They sun - dried fish when practical, but in the rainy climate of the coastal area they also used smokehouses to preserve tons of fish and other seafood annually. Each product had its own peculiar characteristics that demanded a particular way of cutting or drying the meat, and each task required its own cutting blades and other utensils.

After drying the fish, the women pounded some of them into fish meal, which was an easily transported food used in soups, stews, or other dishes to provide protein and thickening in the absence of fresh fish or while on long trips. The women also made a cheese-like substance from a mixture of fish and roe by aging it in storehouses or by burying it in wooden boxes or pits lined with rocks and tree leaves.

All of the following are true of the north Pacific coast women EXCEPT that they

A. were more likely to catch shellfish than other kinds of fish

B. contributed more materials for tool making than the men did

C. sometimes searched for food far inland from the coast

D. prepared and preserved the fish

1

DH

Dương Hoàn Anh

3 tháng 10 2019

Chọn đáp án C

Tất cả những điều sau đây đúng về ngưởi phụ nữ ở bở biển phía Bắc Thái Bình Dương NGOẠI TRỪ việc họ _________ .

A. có khả năng bắt các loại giáp xác hơn các loại cá khác

B. đóng góp nhiều nguyên liệu để chế tạo công cụ hơn ngưởi đàn ông

C. thỉnh thoảng đi kiếm thức ăn xa bở biển

D. chuẩn bị và bảo quản cá

Dẫn chứng: - Women also specialized in the gathering of the abundant shellfish that lived closer to shore. They collected oysters, crabs, sea urchins, abalone, and clams, which they could gather while remaining close to their children... (Ngưởi phụ nữ cũng chuyên về việc thu lượm các loài giáp xác dồi dào sống gần bở biển. Họ thu lượm các loại hàu, cua, nhím biển, bào ngư, và con trai trong khi họ vẫn ở gần bên các con của mình.) => A đúng, C sai

- The maritime life harvested by the women not only provided food, but also supplied more of the raw materials for making tools than did fish gathered by the men. (Việc thu hoạch của ngưởi phụ nữ ở bở biển không chỉ giúp cung cấp thực phẩm mà còn cung cấp nhiêu nguyên liệu thô để giúp chế tạo công cụ hơn việc ngưởi đàn ông đánh bắt cá.) => B đúng

- The women used their tools to process all of the fish and marine mammals brought in by the men. They cleaned the fish, and dried vast quantities of them for the winter... (Những ngưởi phụ nữ sử dụng các công cụ để xử lý tất cả các loài cá và động vật có vú ở biển được ngưởi đàn ông mang về. Họ làm sạch cá và sấy khô số lượng lớn để dành cho mùa đông ...) => D đúng

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions The Native American peoples of the north Pacific Coast created a highly complex maritime culture as they invented modes of production unique to their special environment. In addition to their sophisticated technical culture, they also attained one of the most complex social organizations of any nonagricultural people in the world. In a division of labor...

LQ

Lê Quỳnh Anh

7 tháng 6 2018

Read the following passage and mark the letter A, B, C or D on your answer sheet to indicate the correct answer to each of the questions

The Native American peoples of the north Pacific Coast created a highly complex maritime culture as they invented modes of production unique to their special environment. In addition to their sophisticated technical culture, they also attained one of the most complex social organizations of any nonagricultural people in the world.

In a division of labor similar to that of the hunting peoples in the interior and among foraging peoples throughout the world, the men did most of the fishing, and the women processed the catch. Women also specialized in the gathering of the abundant shellfish that lived closer to shore. They collected oysters, crabs, sea urchins, mussels, abalone, and clams, which they could gather while remaining close to their children. The maritime life harvested by the women not only provided food, but also supplied more of the raw materials for making tools than did fish gathered by the men. Of particular importance for the native tool than did the fish gathered by the men. Of particular made from the larger mussel shells, and a variety of cutting edges that could be made from other marine shells.

The women used their tools to process all of the fish and marine mammals brought in by the men. They cleaned the fish, and dried vast quantities of them for the winter. They sun-dried fish when practical, but in the rainy climate of the coastal area they also used smokehouses to preserve tons of fish and other seafood annually. Each product had its own peculiar characteristics that demanded a particular way of cutting or drying the meat, and each task required its own cutting blades and other utensils.

After drying the fish, the women pounded some of them into fish meal, which was an easily transported food used in soups, stews, or other dishes to provide protein and thickening in the absence of fresh fish or while on long trips. The women also made a cheese-like substance from a mixture of fish and roe by aging it in storehouses or by burying it in wooden boxes or pits lined with rocks and tree leaves.

All of following are true of the cheese-like substance mentioned in paragraph 4 EXCEPT that it was___________.

A. made from fish

B. not actually cheese

C. useful on long journeys

D. made in a short period of time

1

DH

Dương Hoàn Anh

7 tháng 6 2018

Đáp án D

Tất cả những điều sau đây đều đúng với chất giống như phô mai được đề cập trong đoạn 4 ngoài trừ việc nó

The women also made a cheese-like substance from a mixture of fish and roe by aging it in storehouses or by burying it in wooden boxes or pits lined with rocks and tree leaves.

A. làm từ cá

B. không thực sự phô mai

C. hữu ích trên các chuyến đi dài

D. được thực hiện trong một khoảng thời gian ngắn

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42. The Native American peoples of the north Pacific Coast created a highly complex maritime culture as they invented modes of production unique to their special environment. In addition to their sophisticated technical culture, they also attained one of the most complex social organizations of any nonagricultural people in the world....

LQ

Lê Quỳnh Anh

3 tháng 3 2019

Read the following passage and mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the questions from 35 to 42.

The Native American peoples of the north Pacific Coast created a highly complex maritime culture as they invented modes of production unique to their special environment. In addition to their sophisticated technical culture, they also attained one of the most complex social organizations of any nonagricultural people in the world.

In a division of labor similar to that of the hunting peoples in the interior and among foraging peoples throughout the world, the men did most of the fishing, and the women processed the catch. Women also specialized in the gathering of the abundant shellfish that lived closer to shore. They collected oysters, crabs, sea urchins, abalone, and clams, which they could gather while remaining close to their children. The maritime life harvested by the women not only provided food, but also supplied more of the raw materials for making tools than did fish gathered by the men. Of particular importance for the native tool than did the fish gathered by the men. Of particular made from the larger mussel shells, and a variety of cutting edges that could be made from other marine shells.

The women used their tools to process all of the fish and marine mammals brought in by the men. They cleaned the fish, and dried vast quantities of them for the winter. They sun - dried fish when practical, but in the rainy climate of the coastal area they also used smokehouses to preserve tons of fish and other seafood annually. Each product had its own peculiar characteristics that demanded a particular way of cutting or drying the meat, and each task required its own cutting blades and other utensils.

After drying the fish, the women pounded some of them into fish meal, which was an easily transported food used in soups, stews, or other dishes to provide protein and thickening in the absence of fresh fish or while on long trips. The women also made a cheese-like substance from a mixture of fish and roe by aging it in storehouses or by burying it in wooden boxes or pits lined with rocks and tree leaves.

All of following are true of the cheese-like substance mentioned in paragraph 4 EXCEPT that it was _________ .

A. made from fish

B. not actually cheese

C. useful on long journeys

D. made in a short period of time

1

DH

Dương Hoàn Anh

3 tháng 3 2019

Chọn đáp án D

Tất cả những điều sau đúng về chất giống như pho mát được đề cập trong đoạn 4 NGOẠI TRỪ nó _________.

A. được làm từ cá

B. không thực sự là pho mát

C. hữu ích trong các chuyến đi dài

D. được làm trong thời gian ngắn

Dẫn chứng: After drying the fish, the women pounded some of them into fish meal, which was an easily transported food used in soups, stews, or other dishes to provide protein and thickening in the absence of fresh fish or while on long trips. The women also made a cheese-like substance from a mixture of fish and roe by aging it in storehouses or bv burying it in wooden boxes or pits lined with rocks and tree leaves. (Sau khi sấy cá, phụ nữ đã giã một ít cá làm bột cá, một loại thực phẩm dễ dàng được vận chuyển dùng trong các món súp, món hầm, hoặc các món khác để cung cấp protein khi không có cá tươi hoặc trong những chuyến đi dài. Những người phụ nữ này cũng tạo ra một chất giống pho mát từ hỗn hợp cá và trứng cá bằng cách ủ nó lâu trong kho hoặc bằng cách chôn cất nó trong các hộp gỗ hoặc hố lót đá và lá cây.)