The three pronunciations of tiredness

L é I is burdensome and fruitful
I have accumulated many times, many times, many times, many times, many times and many times
Tired

"Jin" has two pronunciations. The word in the fourth tone is "try to". What is the second tone?
What are the words in the second tone?

There are no two voices, there are three. Do 1 (do) J ì n (do) J ì n (do) J ㄐㄧㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣㄣ

The pronunciation of "Lei" in the following words is "Lei": A: fruitful B: tired C: guilty D: accumulated

A: Fruitful second
B: Tired fourth
C: Crime after crime
D: Cumulative third

The lengths of two sides of a triangle are 10cm and 5cm respectively. If the triangle has the same sides, find the perimeter of the triangle and explain the reason
To be accurate ha!

The length of the third side can only be 10 or 5 cm
If it is 5 cm, the two sides are 5 cm and the other side is 10 cm
Because the sum of any two sides of a triangle is greater than the third
So it's not a triangle at this point
So the third side can only be 10 centimeters
At this point, the perimeter of the triangle is 10 cm + 5 cm + 10 cm = 25 cm

When a = - 1, find the value of 16 + 2a-8a-a-9-3-6a

The original formula = (2-8-1-6) a + 16-9-3 = - 13A + 4. When a = - 1, the original formula = - 13 × (- 1) + 4 = 17

As shown in the figure, it is a triangle shaped pattern composed of several potted flowers. Each side (including two vertices) has n (n ＜ 1) disk flowers, and the total number of pots in each pattern is s. according to this rule, we can infer the relationship between S and N, and find out the value of s when n = 13

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Each graph as shown in the figure represents a triangle shaped pattern composed of several potted flowers. Each side (including two vertices) has n (n > 1) potted flowers. The total number of potted flowers in each pattern is s. according to this rule, we can infer the relationship between S and N, and find out the value of s when n = 13
(1)s=3n-3(n＞1)
(2)n=13
s=3×13-3
=36

Is the classification of plants based on the characteristics of roots, stems and leaves?

This view is not comprehensive and complete. Modern plant classification is based on natural classification, which takes the external morphology of plants as the classification basis and the degree of intimacy between plants as the classification standard

Simplification: - 2x2y (- 2xy2) 2 + (2XY) 3 × (XY2)

The original formula = - 2x2y (4x2y4) + (8x3y3) × (XY2) = - 8x4y5 + 8x4y5 = 0

On a plan with a scale of 1:1000, the length and width of a rectangular piece of land measured are 15 cm and 8 cm respectively. What is the actual distance of this piece of land?

Actual area? 1000x15x1000x8 = 120000000 square centimeters = 120000000 square meters

The three pronunciations of tiredness