X = x + x = x * x = x-x / X can only fill in 1 to 8, and each number can only be used once

X = x + x = x * x = x-x / X can only fill in 1 to 8, and each number can only be used once


There is no solution to this problem, because the first number can be the product of two numbers, and each number can only be used once, so the first number can only be 6 or 8, because there is x-x / X behind it
So the first number is not 8, it can only be 6
6=2*3
6=1+5
There are four, seven and eight numbers left, which can't satisfy x-x / x = 6
So there is no solution



Use three zeros and three nines to make six digits
1. I don't read any of them. This number is ()
2. Read only a 0, the number is ()
3. Read out two zeros. This number is ()
4. Of the six digits, the largest is () and the smallest is ()


1. I don't read any of them. This number is (999000 or 909900)
2. Read only a 0, this number is (909009 or 909090 or 990009 or 990090 or 990900)
3. Read out two zeros, this number is (900909)
4. Of the six digits, the largest is (999000) and the smallest is (900099)



From 0 to 9, how many changes do these ten numbers have in 7 digits


The number is not repeated: 9x9x8x7x6x5x4, a total of 7 digits. If the first digit takes 0, it is meaningless, so there are 9 ways to take the first digit; because the second digit takes a number in front, but it can take 0 at this time, there are still 9 kinds; and so on
The number can be repeated: at this time, the maximum number is 999999, and 0-9 already contains all the factors that constitute the natural number; but the meaning of the question is limited to 7 digits, so there are 999999-1000000 (this is the minimum of 7 digits), namely 8999999



A few sentences translated from Chinese into English
My brother and I are different in many ways
She is eager to have a job
He would rather rent a car than buy one of his own
It is said that he will come, but he hasn't turned up yet
5. You promised to help, but now you can't back out
6. Your meaning is not really understood (get across)
His knowledge amazes me
8. I stand by what I said
The box is too heavy for me to lift( so.that )
10. There are no available parking spaces in crowded places
11. We've run out of gas
This sofa can be used as a bed at night
Do you have Christmas in your country
14. You haven't made any progress in English
It's no use helping him. He gave up


1.I differ from my brother in many ways.
2.She is anxious for a job.
3.He would rather rent a car than buy one for himself.
4.It is said that he will come,but he hasn't turned up yet.
5.You promised to help me,and you can't back out your words.
6.Your meanings didn't get across.
7.His knowledge surprised me.
8.I stand by what I said.
9.The suitcase is so heavy that I can't carry it up.
10.Parking lots are not available at crowded places.
11.Our gas has run out.
We have run out of our gas.
12.This sofa can function as a bed at night.
13.Do you have/observe Christmas Day in your country?
14.You made little progress in your English.
15.It is no use helping him while he gives up himself.
If you don't understand, please take it in time. Thank you!



To a high school English self introduction! To have a Chinese translation Oh!


Dear Teachers and students,Hello,my name is _______ ,I am ____ now,I just graduated from ________ .I'm very excited to meet and work with new classmates and teachers that we will have for the next few y...



English translation
He decided to go to the valley. Because of his firm attitude, as usual, we had to give in. 2. We walked slowly towards the valley and saw a cave under the temple, When you enter the cave, you find many things, such as a small bag of woolen goods, a pillow, and even an insurance ticket. 4. There are still flames in the cave, and the water is boiling. 5. It was predicted that the scenery in the cave at midnight would be quite good


He decided to go to the valley.As his attitude was strong as usual,we had to give in. 2.We paced to the valley slowly, and saw the temple beneath there is a cave. 3.Bending into the cave,we have found manythings,such as a parcel of wool,a pillow, and even an insurance ticket. 4.There also have some flame and boiling water in the cave. 5.Once someone had forecast that the view in the cave must be beautiful at night. 6.It seems that these view are reliable.



English sentence making high school level should have Chinese translation
(1)has a good effect on(2)be proud of (3)be self-confident(4)under the pressure(5)share sth with sb


Reducing the number of cars has a good effect on global warming
i am proud of what you have done.
I'm proud of what you've done
he is self-confident when he give a speech.
He was confident when he was giving a speech
he is afraid to do it because he is under the pressure from parents.
He didn't do it because he had a lot of pressure from his parents
i want to share my felling with you about this movie.
I want to share with you my feelings about this movie



English translation
1jimson is considered to be one of the company's most talented employees (regard... As, gifted) 2 in front of the hall sits a bronze statue of Dr. Sun Yat Sen (inverted)


In front of the hall stands the bronze state of Dr.Sun Yixian



Ask a question about physical mechanics!
If an object placed on a horizontal plane is still standing on the horizontal plane after being subjected to the downward pressure F, what is the direction of the resultant force of the pressure on the object and the static friction from the ground?
Please provide solutions


First of all, f slants down to the right, indicating that f has a component force in the vertical downward direction, while the object is stationary in the vertical direction, that is, the support force is equal to gravity plus the vertical component force of F, so the support force is greater than gravity. The resultant force of support force and gravity is vertical upward
Secondly, because it is still, the vector sum of gravity, support force, pressure and friction force is 0
Finally, since two of the resultant forces are vertically upward, in order to make the vector sum zero, the resultant forces of the remaining two forces are only vertically downward, which is equal to the resultant force of gravity and supporting force



Three wooden poles with weight g are symmetrically placed in a regular tetrahedron, with length a, neglected diameter, and enough friction force. (1) calculate the magnitude and direction of the force on the top of the pole; (2) if a person with weight g sits at the middle of a pole and the pole does not move, calculate the force on the top of the pole at this time


Let the three bars be a, B and C respectively. We divide the three bars into two parts. A is a whole, B and C are a whole. From the figure below, we divide the force on the top of the bar into X-direction component FX & nbsp;, and Y-direction component FY. Where X-direction is the direction of horizontal projection of bar a, and Y-direction is the vertical upward direction
The following answers and all of them are shown in the figure below: