1. If (1-x) = -0.027, then x =? 3. If {x + y = 5,2x + y = 8, then x + 2Y =? 10. If (1-x) ^ 3 = -0.027, then x =? 11. Calculation. （X-Y)^2-(X+Y)(X-Y) 12. The water charge standard of a city is as follows: the monthly water consumption of each household is not more than 6m ^ 3, and the water charge is 1.6 yuan / m ^ 3. If the monthly water consumption of each household is more than 6m ^ 3, the excess part will be charged by 4 yuan / m ^ 3 per month. Suppose the monthly water consumption of each household is x (m ^ 3), and the water fee payable is y yuan (1) Write the functional relationship between Y and X when the monthly water consumption is not more than 6m ^ 3 and more than 6m ^ 3 (2) It is known that the water consumption of a household in May is 8m ^ 3, so the water charge of the user in May can be calculated (process)

1. If (1-x) = -0.027, then x =? 3. If {x + y = 5,2x + y = 8, then x + 2Y =? 10. If (1-x) ^ 3 = -0.027, then x =? 11. Calculation. （X-Y)^2-(X+Y)(X-Y) 12. The water charge standard of a city is as follows: the monthly water consumption of each household is not more than 6m ^ 3, and the water charge is 1.6 yuan / m ^ 3. If the monthly water consumption of each household is more than 6m ^ 3, the excess part will be charged by 4 yuan / m ^ 3 per month. Suppose the monthly water consumption of each household is x (m ^ 3), and the water fee payable is y yuan (1) Write the functional relationship between Y and X when the monthly water consumption is not more than 6m ^ 3 and more than 6m ^ 3 (2) It is known that the water consumption of a household in May is 8m ^ 3, so the water charge of the user in May can be calculated (process)

(2) （-3x^2y)×（1/3XY^2) =-x^3y^3
(3) The title is wrong
(4) If △ ABC has only one axis of symmetry, it is an isosceles triangle. If △ ABC has three axes of symmetry, it is an equilateral triangle
(5) In the travel problem s = 10t, the variable (time t) is called the function of variable (distance s)
If the above travel problem is written as t = s / 10, then the variable (distance s) is called a function of the variable (time t)
(6) When drawing the image of a function once, you only need to draw (2) points in the rectangular coordinate system and make (a straight line) through these (2) points
(7) The image of the first-order function passes the point (- 1,0), and the value of the function decreases with the increase of the independent variable. Write out an analytic expression of the first-order function (y = - x-1) that meets this condition
(8) When x (0), when x (> 2), y (0), when x (> 2), y (0), when x (> 2), y (0), when x (> 2), y (0), when x (> 2), y (0), y (0), y (0), y (0), y (0), y (0), y (0), y (0), y (0), y (0), y (0)

Cube of [X-2] + 1 / 8 = 0

Cube of [X-2] + 1 / 8 = 0
Cube of [X-2] = - 1 / 8
x-2=-½
x=1.5

The cube of 1 equals 1, the cube of 2 equals 3 plus 5, the cube of 3 equals 7 plus 9 plus 11, the cube of x equals Plus 2011 Find x

Don't think so complicated
The cube of 1 is the third power of 1, that is, 1x1x1 = 1
The cube of 2 is the cubic of 2, that is, 2x2x2 = 8 = 3 + 5
The cube of 3 is the third power of 3, that is, 3x3x3 = 27 = 7 + 9 + 11
So @ # ￥ @ # ￥ Think for yourself