Negative | + 2 out of 3 |, 1 out of 3 is larger

Negative | + 2 out of 3 |, 1 out of 3 is larger


Negative | + 2 / 3 | = - 2 / 3
2 / 3 > 1 / 3
-2 / 3



A few simple English multiple choice questions, fill in the blanks, urgent use,
1.-Are we going to stay here for the night?
--I am ( ) so.
A.think B.sorry c.hope D.afraid
2.She walked into the classroom and took a seat in the ( ).
A.back B.middle C.left D.right
3.Who do you think ( )up the purse a moment ago?
A.picked B.picks C.picking D.to pick
4.At that time I ( ) to buy a liverpool football T-shirt.
A.couldn't B.didn't C.wasn't D.wouldn't
5.Robots will take the place of h( ) in many work situations.
(words beginning with H)
Please do it carefully. Question 3.4.5 is the key point
purse liverpool forest
It's really urgent


1.D
Am can be followed by B D excluding AC
I am sorry followed by a clause or not followed by or about
And I am afraid can
So it's d
2.B
at the back,on the left/right,in the middle
3.A
Do you think is an parenthesis
Who picked up... A moment ago
4.C
The other three can't be directly related to to do, they are all related to do
And be to do is OK
It's a lot of fun
It means "purpose, plan"
5. Human means robot replaces human
Purse Wallet
Liverpool Liverpool
Forest



As shown in the figure, in rectangle ABCD, ab = 12, ad = 10, fold the rectangle so that point B falls at the midpoint E on the edge of AD, then crease FG=______ .


Let GH ⊥ AB and H be the perpendicular foot, then connect EF, eg and GB. According to the properties of folding, if FB = ef (set as x), eg = GB, then AF = 12-x. if B falls on the midpoint e of AD, AE = 12ad = 5. In RT △ AEF, AE2 + af2 = ef2, that is 52 + (12-x) 2 = X2, the solution is x = 16924



How to calculate 125 times 88 by using the law of distribution of multiplication


125×88
=125×(80+8)
=125×80+125×8
=10000+1000
=11000



What is odd through and even not through


It means that for inequalities such as
(x-1)^3(x-2)^4(x-8)^6(x-5)^7>0
Only the roots of odd powers are punctured, where x = 1 and x = 5
But put x = 2 and x = 8 on the axis
The solution set is X5 and X is not equal to 8



For any quadrilateral ABCD, e and F are on AB, AE = EF = FB, G and H are on CD, CG = GH = HD. The proof is that the area of efgh of quadrilateral is one third of the area of ABCD of quadrilateral


Can't be any quadrilateral, trapezoid obviously can't
Must be a parallelogram can be used to calculate the proportion of high triangle similar results



The sixth power of 5 * 10 is m = () cm=__________ Mm science and Technology Law


5 * 10 to the eighth power CM-5 * 10 to the ninth power mm



Well, those above iQ200 come in
One third of a batch of steel has been transported. If another 20 tons are transported, the ratio between the transported and the remaining tons is 2:3. How many tons are there in total?


The ratio of the transported tonnage to the remaining tonnage is 2:3, which means that the transported tonnage accounts for 2 / 5 of the total tonnage,
One third of them have been shipped, and there are still 2 / 5-1 / 3 = 1 / 15,
This 1 / 15 is 20 tons, so there are: 20 / (1 / 15) = 300 tons



Use four identical rectangles to make a square. The perimeter of each rectangle is 50cm. What's the area of this square


To make a square with four identical rectangles, only four can be arranged in parallel
a=4b
And 2A + 2B = 50
By combining the above two forms, we can get the following results:
A = 20 cm, B = 5 cm
Square area s = 100 (square centimeter)



First simplify and then evaluate the power of (a + b) (a-b) + (a-b), where a = 3, B = minus one third


The second power of (a + b) (a-b) + (a-b)
=a²-b²+a²-2ab+b²
=2a²-2ab
=2x3²+2x3x1/3
=18+2
=20
If other problems are added,