Observe carefully, find out the rule, and then fill in the number 111111111 △ 9 = 123456789 222222222 △ 18= Observe carefully, find out the law, and then fill in the number 111111111÷9=123456789 222222222÷18=123456789 333333333÷27=123456789 （）÷36=123456789 777777777÷（）=（）（）÷（）=（）

(444444444).(63).(888888888).(72)

RELATED INFORMATIONS

1. According to 123456789 * 9 = 1111111101, make the following formula answer 123456789*18=?123456789*36=?123456789*54=?123456789*72=? 123456789*27=?123456789*45=?123456789*63=?123456789*81=?
2. 1 + 0 * 9 = 1,2 + 1 * 9 = 11,3 + 12 * 9 = 111 until 9 + 123456789 * 9 = 111111111 is there any rule
3. Use 9 numbers 123456789 to write three equal fractions. Each number can only be used once
4. Write three fractions of equal size with nine numbers 1, 2, 3, 4, 5, 6, 7, 8 and 9. (each number can only be used once). For example: 36 = 714 = 2958
5. The number of columns in the order of law is: - 1,3, - 5,7, - 9, 11. According to this rule, what is the 20th number in this column and what is the nth number What's the 20th book in this column
6. 3, - 6,9, - 12 ··, - 20042007, - 2010 the 100th number is? The sum of this column is?
7. 3,-6,9,-12… -20042007, - 2010 to find the sum of this column
8. 3, - 6,9, - 12 , - 2004, 2007, 2010, complete the following questions: (1) write the 100th number in this column; (2) Find the sum of this column
9. Known 3, - 6,9,12 Complete the following questions: find the sum of this column?
10. Given 3, - 6,9, - 12... - 20042007 write the 100th number in this column? Find the sum of the number in this column?
11. 1 ,3,1 ,4 ,9,1 ,8,( ) A 18 B 27 C 36 D12
12. The sum of the side length of a square and the width of a rectangle is 20 cm, the perimeter of a square is one and one third of the perimeter of a rectangle, and the width of a rectangle is 4 / 5 of the length. How much is the area of the square and rectangle and the fact How much is the area sum of square and rectangle?
13. 1. The arc length of the sector is a, the radius is r, the sector area is 2, and the concentric angle of the sector is 150 degrees. Then the area of the sector is equal to the area of the circle where the sector is located 3. If the radius of circle O is 4cm and one of the arcs is 2cm long, what is the central angle of the arc
14. Find the equation of the circle with n (1,3) as the center and tangent to the line 3x-4y-7 = 0
15. It is known that F 1 and F 2 are the focal points of the ellipse x 29 + y 25 = 1, the point P is on the ellipse and ∠ f 1pf 2 = π 3
16. How to calculate the net area of irregular figure
17. It is known that the quadratic function y is equal to the square of x minus 2x plus 4. If there is only one intersection point between the line passing through the origin and the quadratic function, how many such lines are there What I want to ask is: why does this line have no intersection with the parabola when it happens to be the x-axis and y = 0?
18. If the sum of quadratic coefficient and constant term in the quadratic equation AX2 + BX + C = 0 is equal to the coefficient of the first term, then one root of the equation must be () A. 0B. 1C. -1D. ±1
19. Let the right focus of hyperbola C: x24 − y2 = 1 be f and the line L pass through the point F. if the line L intersects both the left and right branches of hyperbola C, then the slope k of line L is () A. K ≤ − 12 or K ≥ 12b. K ＜ − 12 or K ＞ 12C. − 12 ＜ K ＜ 12D. − 12 ≤ K ≤ 12
20. (1 / 2) solving the system of linear equations with three variables {A-B + C = 0 4A + 2B + C = 3 2)