Give high marks! Come on, come on, make it and give high scores!

Myopia is a common thing nowadays ... Let's just say that reading a book is being seen... If you don't believe it, just tell the process honestly.

Now that things have happened ... And it can't be changed for the time being... Then I had to accept it ...

I mean your mother ...

Only 13 years old, hurry up and tell your parents, it's okay! Myopia is not something that can be completely prevented by yourself, and it is not a big deal that there are so many myopic people now. Besides, after college, there are a few who are not short-sighted, and it is only a matter of time!

Your own eyes may not be suitable! Hurry up to the hospital and have a good check-up, and hurry up to save it!

Your mother's tone can only remind you not to be short-sighted. Take care of your eyes. But your eyes are already short-sighted, so there's no need to hide them anymore. Tell your mom well. Young. Take care of your eyes. Don't let the power of your eyes increase.

de ab df ac aedf is a parallelogram with an angle a = angle edf = 85

a+ b+ c=180 The sum of the inner angles of the triangle is 180

Because the absolute value given for any number is greater than or equal to 0, and the square root of the arithmetic for non-negative numbers is greater than or equal to 0, x-5 = 0 and y+4 = 0

i.e. x=5, y=-4, so the original formula is equal to 1

The answer to the question above is 1

The absolute value plus the root sign is equal to zero, and both equations are equal to zero, and the solution is x=5, y=-4, x+y=1

a-12=-(2a-3)

a-12=-2a+3

3a=15a=5m=(a-12)2

m=(5-12)2

m=49 because the square root of a number is the opposite of each other.

Hello! The shape of the chicken farm and the pat is a right-angled trapezoid, and the trapezoidal area is Gonghe digging type = 1 2 (upper bottom + lower bottom) * high spike.

On the way, the length of the fence = upper bottom + lower bottom + 16 (height) = 70, you can get the upper bottom + lower bottom = 70-16 = 54 meters.

So trapezoidal area = 1 2 (upper bottom + lower bottom) * height = 1 2 * 54 * 16 = 432 square meters. Satisfied.

From Wu Chihongtu, we can know that this is a right-angled trapezoid, and the area formula of the trapezoid = (upper bottom Dan rot + lower bottom) x height 2

It is known that the total length is 70m (the left hypotenuse is not a wall), so the upper bottom + lower bottom = 70-16 = 54 (m).

So the area s=54x16 2=54x8=432 (square cavity meter).