The solution of inequality 1-2x / 3 > 4-3x / 6

The solution of inequality 1-2x / 3 > 4-3x / 6

(1-2x)/3>(4-3x)/6
Multiply both sides by 6 to get:
2(1-2x)>4-3x
2-4x>4-3x
-4x+3x>4-2
-x>2
That is X

The area ratio of a square and a circle with equal perimeter is ()
A. 1：2B. 2：1C. 1：1D. π：4

Suppose that the circumference of the circle and square is 16, then the radius of the circle is: 16 △ π △ 2 = 8 π, the area is: π × 8 π × 8 π = 64 π, the side length of the square is: 16 △ 4 = 4, the area is: 4 × 4 = 16; so the area of the square: the area of the circle = 16:64 π = π: 4, so choose: D

Let four digit ABCD satisfy a ^ 3 + B ^ 3 + C ^ 3 + D ^ 3 + 1 = 10C + D, then the number of such four digits is? I know it is 5
The method of pasting is not the same. I've seen it all. It's different

The answer is that the process is relatively complete and the thinking is clear for reference
a^3+b^3+c^3+d^3+1=10c+d

If the radius of a sector is reduced to one-third of the original, and the central angle of the circle is expanded to nine times of the original, the area of the sector will be reduced_________
Such as the title

Let the center angle of the circle be a, the radius be r, s = A / 360 * pie * R ^ 2
So the area doesn't change

Is the formula of number of first + last * terms divided by 2 suitable for all sequences or only for arithmetic sequences?
- -ruti

Only the arithmetic sequence can be used

About 120 words of self introduction in junior one English speech

Hello everyone, my name is … . This is really a great honor to have this opportunity, and I believe I can make good performance today. Now I will introduce myself briefly. I am 20 years old,born in Guangdong province, south of China, and I am a senior student at Guangdong **University. My major is English. And I will receive my bachelor degree after my graduation in June. In the past four years, I spent most of my time on study. I passed CET4 and CET6 with a ease and acquired basic theoretical and practical knowledge of Language. Besides, I have attended several Speech competition held in Beijing, which really showed our professional advantages. I have taken a tour to some big factories and companies, through which I got a deep understanding of English for application. Compared to developed countries, unfortunately, although we have made extraordinary progress since 1998, our packaging industry is still underdeveloped, messy and unstable, and the situation of employees in the field is awkward. But I have full confidence in its bright future if only our economy can be kept at the growth pace still. I guess you may be interested in why I choose this job. I would like to tell you that this job is one of my lifelong goals. If I can work here,I will work hard. As to my character, I cannot describe it well, but I know I am optimistic and confident. Sometimes I prefer to stay alone, reading and listening to the music, but I am not lonely, for I like to chat with my classmates about almost everything. My favorite pastime is to play volleyball, to play cards or to surf online. From life at university, I learn how to balance study and entertainment. By the way, I was an actor in our amazing drama club. I have a few glorious memories on stage. That is my pride...

In the plane rectangular coordinate system, three points a (0,1), B (2,0), C (2,1.5) are known. Point O is the origin
(1) Find the area of △ ABC (solved)
(2) If there is a point P (a, &# 189;) in the second quadrant, use the formula containing a to express the area of the quadrilateral abop;
(3) Under the condition of (2), is there a point P that makes the area of the quadrilateral abop equal to the area of △ ABC? If so, find out the coordinates of point p; if not, explain the reason

(2) The quadrilateral abop consists of right triangle AOB and triangle POA
The area of the former is S1 = (1 / 2) * OA * ob = 1 * 2 / 2 = 1
The area of the latter is S2 = (1 / 2) * OA * | the height of OA = (1 / 2) * 1 * | a | = | a | / 2 = - A / 2 (P in the second quadrant, a / 2)

A cuboid is 12 cm long and 8 cm high. The sum of the areas of the bottom and left sides is 200 square cm. What is the volume of the cuboid?

The width of the cuboid is 200 / (12 + 8) = 10 cm
12 * 10 * 8 = 960 CC
A: the cuboid has a volume of 960 cubic centimeters

If a ∈ (- π / 2 + 2K π, 2K π), then the sizes of Tana, Sina, cosa,

Let's first look at the positive and negative values of the three values. Cosa is positive, and the other two are negative. When using trigonometric function lines, it is the fastest,

It is known that X1 + X2 is the two real roots of the equation x-2x-2 = 0. Solve the equation and find the values of the following expressions: 1) x2 + 2 / X12) 1 / x2 = 1 / x1

Let two be a and B. then a + B = 2. AB = - 2. (1). B + 2 / a = AB + 2 / a = 0 (2)