3, 105 degrees 4,0
5、P-XQ
6、5/ 1 7、-23 8、7.5
9,4 or 210,0.5x+3) 80% =16.8
1 1, a=-2 12, reciprocal13,2.51time (10 to the fifth power)14,0/kloc-0.
Option: BCDCDCCACCB
Calculation questions: 1,-132,303,2003
4, -2 1/2 1
5、9
6，x =-3/5 7，3
8、23 9 、-a 10、X=8
Answer the question:
The algebraic expression (1) 2x+ 1 will become larger and larger, and the square of -x +4 will become smaller and smaller.
(2) There is a maximum value of 4, and there is no minimum value.
2、
(1)39 km formula:15-2+5-1+10-3-2+12+4-5+6.
(2) 3.25L formula: (15+2+5+1+10+3+2+12+4+5+6) × 0.05.
=65×0.05
= 3.25 liters
Three, three, five years later
Solution: Suppose Aunt Li gets 30,000 yuan of principal and interest after X years.
Column type:
25000+25000×5%×( 1-20%)=30000
X=5
4. (1) straight AOE obtuse AOD right AOC acute AOB
(2) Angle AOC= Angle AOB+ Angle BOC
Angle AOE= angle AOB+ angle BOC+ angle DOE
5. Solution: Let each box contain X products.
5(8x+4)= 7( 1 1x+ 1)+ 1。
X= 12
A: There are 12 products in each box.
6、( 1) 1 3 5 4 8 12
(2)6n- 1=35
n=6
Yes, it is the sixth one.
7. Put 10 balls of the same color except the black cloth bag, including 5 red balls, 4 white balls and blue balls 1 ball. Shake well and then touch another ball, so the possibility of touching the red ball in 2 is 1.
10, solution: Let the sailing distance of A and B be x kilometers.
1 possibility:
(8+2) x+(8-2) x-2 = 3。
x= 10
The second possibility:
(8+2) x+(8-2) x+2 = 3。
x= 12.5
Answer: 1 The case is 10 km, and the second case is12.5km..
Only the information of 1 1 and (1) is pulled.
(2) 120 divided by 8%= 1500 (yuan)
(3) Not necessarily. Because the unit doesn't know
The area of 12 and square 4 is 8 square centimeters.
13, unlikely.
What haven't you done yet? Sorry ~
contemporary Chinese language
( 1)
I caught the moth that harassed me, but I couldn't help letting it go because of its desire for survival.
A sweet melon seed, in the absence of sunlight and soil, emerged from the cracks in the brick. Although it only lived for a few days, I was awed by its vitality.
I borrowed a stethoscope and listened to my heartbeat. I was shocked by the regular beating.
(2) I can make good use of my life and live a meaningful life, or I can spoil it and make it absurd and futile; Everything is in my mind, and I must be responsible for myself; Although life is short, I can make my limited life exert infinite value, or I can be brilliant and powerful, but it is all in my own control. I can't live up to my life, no matter what my future fate is, I will fight for it and live for it.
(3) Because the moth struggled in my hands and flapped its wings, the strong and vivid desire for life shocked me, and I couldn't help letting it go again.
(4) Shake the earth and describe it as strong, tall and powerful.
It has no such power. This is an exaggeration, it can break through the hard shell, stand up and thrive in the cracks of bricks without sunshine and soil.
(5)(6) Omission ...
Mr. (1) was a teacher of prisoners. It's a pity that No.78 worked harder. Thank you for your teaching. When he left the prison, he said goodbye to his husband affectionately. Six years have passed, and the sentence of No.78 has expired. Mr. Wang almost forgot the time. On the 78th, he got an ink bottle as a souvenir.
(2) Because Mr. Wang taught Prisoner No.78 to read and write six years ago, and now his sentence has expired, Mr. Wang came to see him and wanted to give him a souvenir.
(3) an ink bottle chiseled out with nails, covered with a pattern engraved in a notebook with a pen, and surrounded by the words "Mr. No.78 in Beijing, as a six-year commemoration"