Su Education Edition sixth grade volume two exercise four "interesting experiment" composition, about ants and camphor pills, today! The teacher will come tomorrow=

A trip to a fallen leaf

Autumn wind blowing, a leaf reluctant to leave the branches, he ah, unwilling to fall like this, want to take the wind boat to the fields, orchards, lakes and mountains around, and then wither, and then return to the embrace of trees
The fallen leaves came to the field, the golden wheat rolled like the waves, and the sorghum bent down with a heavy smile! The fallen leaves saw all this and thought: if I don't come to see these beautiful scenery, maybe I never know that the field is so vast and rich
The boat of the wind carried the fallen leaves over the orchard. "Ah!" the fallen leaves cried, "it's OK!" it turned out that the colorful fruits, dressed up by the fruit growers, formed a beautiful fruit rainbow in the orchard. Uncle Feng, who was driving the boat of the wind, was stunned. He said, "I've lived so long, and I've seen such a beautiful rainbow for the first time, It's much better than a rainbow that's sunny after rain! "
"Yes, it's a miracle created by our plants!" praised ye ye. Uncle Feng looked at the fruit rainbow carefully and left the orchard reluctantly. Ye Ye was even more reluctant to part with it. But in order to broaden her horizons, ye ye held back her head and continued to travel to high mountains and lakes
I came to the high mountain lake. The lake water was like a jade plate, embedded between the two mountains. The fallen leaves happily went straight to the top of the mountain, "Chi Liu" glided down from the top of the mountain, "ordinary" fell into the lake water, and it happily took a bath in the water. The wash of the fallen leaves actually washed off the layer of burnt yellow, and the yellow leaves turned into green leaves! Little green leaves were very excited, Jump and jump up the mountain
"Come home, child!"
"Come home quickly, child!"
This call is miss of big tree mother, little green leaf listen carefully: "it's big tree mother calling me! Uncle Feng, please send me back to my mother!"

When a takes what value, the equation AX + 1 = x + A is a linear equation with one variable?

The original equation is: (A-1) * x = A-1
If we want it to be a linear equation of one variable, then the coefficient before the unknowns cannot be zero
So a is not equal to 1

Two out of seven, two out of seven, two out of six, and three out of nine

2 out of 7 x 6 out of 7 x 3 out of 9
=2X (1 + 6) of 7 and 3 of 9
=2x7 out of 7 and 3 out of 9
=2 + 3 / 9
=Two and three ninths

Calculation (1 / 3) ^ - 2 × 9 ^ 3 × 27 ^ - 1 / 2

It could be
(1/3)^（-2）×9^3×27^（-1/2）
Original formula = 3 ^ 2 * 3 ^ 6 * 3 ^ (- 3 / 2)
=3^6*3^(1/2)=729√3

If the image of a linear function y = KX + 1 (k is a constant, K is not equal to zero.) passes through the first 123 quadrant, then the value range of K is?

Because in quadrant 1, 2, 3
And because B = 1 (B0)
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How to calculate the problem of 1:1 and 2:1-6:5 + 12:7-20:9 + 30:11-42:13 + 56:15?
The easiest!

1½=3∕2=1+½ 5∕6=½+1∕3 7∕12= 1∕3+1∕4 9∕20=1∕4 + 1∕5 11∕30 = 1∕5 + 1∕6 13∕42 = 1∕6+ 1∕7
15∕56=1∕7 +1∕8
So the original formula = 1 + & #189; - (& #189; + 1 / 3) + (1 / 3 + 1 / 4) - (1 / 4 + 1 / 5) + (1 / 5 + 1 / 6) - (1 / 6 + 1 / 7) + (1 / 7 + 1 / 8)
　　　　＝1+　1∕8＝11∕8

If the absolute value of X is 4, the absolute value of Y is 1 / 2 and XY is less than 0, then x / y is equal to?

If the absolute value of X is 4, the absolute value of Y is 1 / 2 and XY is less than 0, then x / y equals - 8

Given 3-A < 3 (1-A) 2, then the solution set of inequality a (x-3) 3 < 2a-x is___ ．

When solving inequality 3-A ＜ 3 (1-A) 2, the solution set is a ＜ - 3; when solving inequality a (x-3) 3 ＜ 2a-x, the denominator of (a + 3) x ＜ 9a, ∵ a ＜ - 3, ∵ a + 3 ＜ 0, ∵ both sides of the inequality are divided by (a + 3), using the basic property 3 of the inequality, the direction of inequality sign changes, and the solution set is x ＞ 9aa + 3

Su Education Edition sixth grade volume two exercise four "interesting experiment" composition, about ants and camphor pills, today! The teacher will come tomorrow=