Mickey is asked to multiply four positive integers, but he adds them instead.Amazingly, his correct answer is equal to the correct answer for the multiplication problem.What is the sum of these four n...

IL

I lay my love on you

3 tháng 6 2018 - olm

Mickey is asked to multiply four positive integers, but he adds them instead.Amazingly, his correct answer is equal to the correct answer for the multiplication problem.What is the sum of these four numbers?

giúp mình với,mik cần gấp,toán tiếng anh,viết cả lời giải!

#Toán lớp 7

0

1M

1234thhc minhtoannmt

26 tháng 12 2017

Let a, b and c be positive integers. The sum of 160 and the square of a is equal the sum of 5 and the square of b. The sum of 320 and the square of a is equal to the sum of 5 and the square of c, a is

#Toán lớp 8

0

TM

Tran Minh

23 tháng 6 2016 - olm

Let a, b and c be positive integers. The sum of 160 and the square of a is equal the sum of 5 and
the square of b. The sum of 320 and the square of a is equal to the sum of 5 and the square of b.
Find a.

#Toán lớp 6

0

LQ

Lê Quỳnh Anh

23 tháng 10 2019

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questionsMy boss is going on vacation next month, ________ she’ll be away from the office for about four weeks A. in other words B. for instance C. on the other hand D. such...

Đọc tiếp

#Mẫu giáo

1

DH

Dương Hoàn Anh

23 tháng 10 2019

Đáp án A

In other words: nói cách khác

For instance = for example: ví dụ On the other hand: ngược lại

Such as: chẳng hạn như

Câu này dịch như sau: Sếp của tôi đự định đi nghỉ mát vào tháng tới, nói cách khác bà ấy sẽ đi xa khỏi văn phòng khoảng 4 tuần

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LQ

Lê Quỳnh Anh

31 tháng 5 2018

Mark the letter A, B, C or B on your answer sheet to indicate the correct answer to each of the following questions.

One of the four period of time in which a game of American football is divided is known as a _________.

A. part

B. half

C. quarter

D. stage

#Mẫu giáo

1

DH

Dương Hoàn Anh

31 tháng 5 2018

Chọn C

A. part(n): phần

B. half(n): nửa

C. quarter(n): phần tư

D. stage(n): sân khấu, màn

Dịch câu: Một trong 4 phần thời gian được chia của một trận bóng Mỹ được gọi là một phần tư trận.

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LQ

Lê Quỳnh Anh

21 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 36 to 42.Horace Pippin, as an African-American soldier during World War I, was wounded in his right arm. He discovered, however, that by keeping his right wrist steady with his left hand, he could paint and draw. Pippin was not trained, but his artistic sensitivity and intuitive feel for two-dimensional design and the arrangement of colour and patterns...

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#Mẫu giáo

1

DH

Dương Hoàn Anh

21 tháng 10 2019

Đáp án B

Tên quê ông được đề cập tại dòng 10:…. his hometown of West Chester, Pennsylvania.

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LQ

Lê Quỳnh Anh

12 tháng 1 2017

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 following questions. Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in...

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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 following questions.

Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in manmade particle accelerators and perhaps in extreme stellar events like supernovas. The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun. In reality, the structure of an atom is far more complex, because the laws of physics are fundamentally different at the atomic level than at the level of the observable word. The true nature of atomic structure can only be expressed accurately through complex mathematical formulas. This explanation, however, is of little use to most average people.

Protons and neutrons have nearly equal mass and size, but protons carry a positive electrical charge, while neutrons carry no charge at all. Protons and neutrons are bound together by the strong nuclear force, one of the four basic forces in the universe. Protons and neutrons give atoms some of their most basic properties. Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons. In most lighter atoms, the number of neutrons and protons is equal, and the element is stable. In heavier atoms, however, there are more neutrons than protons, and the element is unstable, eventually losing neutrons through radioactive decay until a neutral state is reached

The word "stable" in bold in paragraph 2 is closest in meaning to _____.

A. neutral

B. unchanging

C. equal

D. heavy

#Mẫu giáo

1

DH

Dương Hoàn Anh

12 tháng 1 2017

Chọn B

Kiến thức: Đọc hiểu

Giải thích:

Từ "stable" được in đậm trong đoạn 2 có nghĩa gần nhất với _____.

A. trung tính

B. không thay đổi

C. bằng

D. nặng

Thông tin: In most lighter atoms, the number of neutrons and protons is equal, and the element is stable.

Tạm dịch: Trong hầu hết các nguyên tử nhẹ hơn, số lượng nơtron và proton bằng nhau và nguyên tố này bền vững

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LQ

Lê Quỳnh Anh

9 tháng 8 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 following questions. Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in...

Đọc tiếp

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 following questions.

Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in manmade particle accelerators and perhaps in extreme stellar events like supernovas. The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun. In reality, the structure of an atom is far more complex, because the laws of physics are fundamentally different at the atomic level than at the level of the observable word. The true nature of atomic structure can only be expressed accurately through complex mathematical formulas. This explanation, however, is of little use to most average people.

Protons and neutrons have nearly equal mass and size, but protons carry a positive electrical charge, while neutrons carry no charge at all. Protons and neutrons are bound together by the strong nuclear force, one of the four basic forces in the universe. Protons and neutrons give atoms some of their most basic properties. Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons. In most lighter atoms, the number of neutrons and protons is equal, and the element is stable. In heavier atoms, however, there are more neutrons than protons, and the element is unstable, eventually losing neutrons through radioactive decay until a neutral state is reached.

According to paragraph 2, an atom's atomic number is determined by __________.

A. the sum of its protons and electrons

B. the difference in the mass of its neutrons and protons

C. the strength of the bond between its protons and neutrons

D. the total number of protons it has

#Mẫu giáo

1

DH

Dương Hoàn Anh

9 tháng 8 2018

Chọn D

Kiến thức: Đọc hiểu

Giải thích:

Theo đoạn 2, số lượng nguyên tử của một nguyên tố được xác định bởi __________.

A. tổng số proton và electron của nó

B. sự khác biệt về khối lượng giữa nơtron và proton của nó

C. sức mạnh của liên kết giữa các proton và nơtron của nó

D. tổng số proton nó có

Thông tin: Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons.

Tạm dịch: Các nguyên tố được xác định bởi hai con số: số lượng nguyên tử, bằng số lượng proton mà chúng có và trọng lượng nguyên tử, bằng tổng số nơtron và proton.

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LQ

Lê Quỳnh Anh

21 tháng 4 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 following questions. Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in...

Đọc tiếp

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 following questions.

Atomic were once thought to be fundamental pieces of matter, but they are in turn made of smaller subatomic particles There are three major subatomic particles neutrons, protons, and electronic. Protons and neutrons can be broken into even smaller units, but these smaller units not occur naturally in nature and are thought to only be produced in manmade particle accelerators and perhaps in extreme stellar events like supernovas. The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun. In reality, the structure of an atom is far more complex, because the laws of physics are fundamentally different at the atomic level than at the level of the observable word. The true nature of atomic structure can only be expressed accurately through complex mathematical formulas. This explanation, however, is of little use to most average people.

Protons and neutrons have nearly equal mass and size, but protons carry a positive electrical charge, while neutrons carry no charge at all. Protons and neutrons are bound together by the strong nuclear force, one of the four basic forces in the universe. Protons and neutrons give atoms some of their most basic properties. Elements are defined by two numbers: their atomic number, which is equal to the number of protons they have, and their atomic weight, which is equal to total number of their neutrons and protons. In most lighter atoms, the number of neutrons and protons is equal, and the element is stable. In heavier atoms, however, there are more neutrons than protons, and the element is unstable, eventually losing neutrons through radioactive decay until a neutral state is reached.

In paragraph 1, why does the author compare the structure of an atom to a solar system?

A. To provide an explanation of atomic structure that will be easily understood

B. To show the influence of atomic structure on the world at the observable level

C. To show that the complex mathematical formulas used to explain atomic structure are inaccurate

D. To contrast the size of atoms with the size of objects at the observable level

#Mẫu giáo

1

DH

Dương Hoàn Anh

21 tháng 4 2018

Chọn A

Kiến thức: Đọc hiểu

Giải thích:

Trong đoạn 1, tại sao tác giả lại so sánh cấu trúc của một nguyên tử với hệ Mặt Trời?

A. Để đưa ra một lời giải thích về cấu trúc nguyên tử một cách dễ hiểu.

B. Để chỉ ra ảnh hưởng của cấu trúc nguyên tử đến thế giới ở cấp độ quan sát được.

C. Để chỉ ra rằng các công thức toán học phức tạp được sử dụng để giải thích cấu trúc nguyên tử là không chính xác.

D. Để tương phản kích thước của các nguyên tử với kích thước của các vật thể ở mức có thể quan sát được.

Thông tin: The structure of an atom can best be described as a small solar system, with the neutrons at the center and the electrons circling them in various orbits, just as the planets circle the sun.

Tạm dịch: Cấu trúc của một nguyên tử có thể được mô tả chính xác nhất giống như một hệ mặt trời nhỏ, với các nơtron ở trung tâm và các electron quay quanh chúng theo các quỹ đạo khác nhau, giống như các hành tinh quay quanh Mặt Trời

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LQ

Lê Quỳnh Anh

26 tháng 2 2018

Mark the letter A, B, C, or D on your answer sheet to indicate the correct answer to each of the following questions.

He would have been excused had he chosen to blow his ____ a little, but that is not his style.

A. trumpet

B. flute

C. drums

D. harp

#Mẫu giáo

1

DH

Dương Hoàn Anh

26 tháng 2 2018

Chọn A.

Đáp án A.

Ta có: blow one’s trumpet (idm): bốc phét, khoác lác

Dịch: Anh ta sẽ được bào chữa nếu anh ta chọn nói khoác một chút, nhưng đó không phải là phong cách của anh ta.

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