Correct the following sentences and point out why they are wrong Don't let the small children to go swimming alone.

Don't let the small children go swimming alone
Let sb do sth~

English: correct the mistakes in the following sentences
The population of India is more than that of Australia.
This book gives a more perfect picture about French Revolution.
who is the greatest alive poet?

1 population is generally bigger than that of Australia
2... Give a better picture... You can't add a comparative grade before perfect
3, which is the greatest poem alive

Special solution of differential equation XY '+ x = 3 satisfying initial condition y (1) = 0

From XY '+ x = 3 = = > y' = 3 / X-1
==>Y = 3ln | x | - x + C, (C is the integral constant)
∵y（1）=0
∴C=1
So the solution of the differential equation XY '+ x = 3 satisfying the initial condition y (1) = 0 is y = 3ln | x | - x + 1

There is a piece of metal with a mass of 386 grams and a volume of 20 cubic centimeters. How much is the density of this metal per cubic centimeter
I'm not asking you what substance, if you cut it in half, what's the density of the rest of it in kilograms per cubic meter

386g÷20cm3=19.3g/cm3
It could be Kim

Three 5's and one 1's addition, subtraction, multiplication and division are calculated in any order, and the result is equal to 24

(5-1/5)*5=24

The law of up down left and right translation of a function
Just a few more examples

Left plus right minus, top plus bottom minus,
For example, if the function y = KX + B moves one unit to the left as y = K (x + 1) + B and one unit to the right as y + K (x-1) + B, the so-called left plus right minus, and the up unit as y + 1 = KX + B and the down unit as Y-1 = KX + B, the so-called up plus down minus

A cylindrical wood is 10 meters long. After it is cut into two cylinders, the surface area increases by 1.2 square meters. How many cubic meters is the original volume of this wood?

1.2 △ 2 × 10 = 6 (cubic meters), a: the volume of this wood is 6 cubic meters

13. Negative 5, negative 3 and negative 7 are 24 points

[13*（-5）-7]/(-3)=[(-65)-7]/(-3)=(-72)/(-3)=24

The system of equations 2T = 3-T, y + 2 = 3T is known, and Y is expressed by an algebraic expression containing X
The one above has the wrong number. Right below --
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Given the equations 2x = 3-T, y + 2 = 3T, the algebraic expression containing x is used to express y

Y = 3t-2 from y + 2 = 3T
From 2x = 3-T we get t = 3-2x
So y = 7-6x

How many square meters is 100 inches

100 square inches = 0.064516 square meters
100 in = 2.54 M
Which one did you ask?

Correct the following sentences and point out why they are wrong Don't let the small children to go swimming alone.