1. If real numbers a and B satisfy that the distance from the corresponding point on the number axis to the origin is equal, then a and B should satisfy () A、a=b B.√a=√b C. A / b = - 1 2. Given that a and B are real numbers, the following proposition is correct () A. If a > b, then the square of a > B B. If | a | B, then the square of a is greater than the square of B C. If a ＞ B |, then the square of a ＞ the square of B D. If the cube of a is greater than the cube of B, then the square of a is greater than the square of B

1. If real numbers a and B satisfy that the distance from the corresponding point on the number axis to the origin is equal, then a and B should satisfy () A、a=b B.√a=√b C. A / b = - 1 2. Given that a and B are real numbers, the following proposition is correct () A. If a > b, then the square of a > B B. If | a | B, then the square of a is greater than the square of B C. If a ＞ B |, then the square of a ＞ the square of B D. If the cube of a is greater than the cube of B, then the square of a is greater than the square of B

1. The square of C.A = the square of B
2. C. If a ＞ B |, then the square of a ＞ the square of B

A linear function y = (M + 3) x + 2-m, when x = - 2, y = 1, then the analytic expression of this linear function is____ .
If the line y = 3x-1 and y = x-k (k > 1) have a common point P, then the point P is in the second direction_____ Quadrant

(1)
Y=(M+3)X+2-M
Substitute x = - 2, y = 1
1=(m+3)*(-2)+2-m
-1=-2m-6-m
5=-3m
m=-5/3
y=(-5+9/3)x+2+5/3
y=4x/3+11/3
3y=4x+11
4x-3y+11=0
(2)
y=3x-1
y=x-k
x-k=3x-1
-2x=k-1
x=(1-k)/2
Because k > 1
So 1-k

Come on, I need you guys
1. If the image of function y = ax + 2 and function y = bx-2 intersects at the point (2006,0), then a: B=____
2. Sum of all integers greater than root - 17 but less than root 11____

1. If the image of function y = ax + 2 and function y = bx-2 intersects at the point (2006,0), then a: B=__ -1__
2. Sum of all integers greater than root - 17 but less than root 11____ There is something wrong with the subject

1. Let m ^ 2 + M-1 = 0, then the value of m ^ 3 + 2 * m ^ 2 + 2009 is__________ .
2. Given that the monomials m and N satisfy 2x (M + 3x) = 6x ^ 2Y ^ 2 + N, then M=__________ ,N=__________ .
1L, you're wrong. It's m ^ 3-2m ^ 2 + 2009, not - m ^ 3-2m ^ 2 + 2009
3L，1+2009=3000？ Wrong.

1
∵m²+m-1=0 ①∴m³+m²-m=0 ②
①+② m³+2m²-1=0
The original formula = 2010
two
M=3xy² N=6x²
Give me some points

Ask for help with two math fill in the blanks in grade two of junior high school
1. Given that the image of positive scale function y = KX passes through point (1,2), then K=______ .
2. It is known that y is proportional to x, and when x = 2, y = - 6, then when y = 9, X=______ .

1 substitute the point (1,2) into k = 2
2 let y = KX (k is not 0) when x = 2, y = 6 is substituted into k = 3, y = 3x
When y = 9, substituting y = 3x, we get x = 3

A book costs 15 yuan. If you get 50% profit from it, you can get 2 yuan at 20% discount. How do you figure it out?

Original price
“1” （1+50%）
15 yuan
Original price: 15 (1 + 50%) = 10 (yuan)
20% off: 15 × 80% = 12 yuan
Profit: 12-10 = 2 (yuan)
That's how it was calculated

A cuboid wood is 80cm long, 20cm wide and 5cm thick. If it is sawed into the largest cube wood block (it is required that it can not be cut, repaired or wasted), it can be sawed______ The volume of each block should be______ Cubic centimeter

Because the greatest common divisor of 80, 20 and 5 is 5, in order to maximize the volume of the block, the wood can not have surplus, so the edge length of the cube block should be 5cm, (80 ﹣ 5) × (20 ﹣ 5) × (5 ﹣ 5), = 16 × 4 × 1, = 64 (blocks); the volume of each block is: 5 × 5 × 5 = 125 (cubic centimeter), a: it can be sawn into 64 blocks, and the volume of each block is 125cubic centimeter 64; 125

() 12 = 35: () = 125% = 16 parts () = () (fill in decimal)
40% less than 30kg is () kg, and 37.5% more than 200m is () M
Three fourths of a 3kg is as heavy as () three fourths of a 3kg
There are only three!

(15) 12 = 35: (28) = 125% = 20 out of 16 = (1.25) (fill in decimal)
40% less than 30 kg is (18) kg, and 37.5% more than 200 m is (275) M
Three fourths of a 3kg is as heavy as (3) three fourths of a 3kg

Fill in the blanks
1.5:0.3＝（ ）：（ ）＝（ ）：（ ）
1/2:2/3＝（ ）：（ ）＝（ ）：（ ）
From a to B, it took Xiao Li 4 hours and the principal 3 hours. The time ratio of Xiao Li and Xiao Zhang is (): (), and their speed ratio is (): ()

1.5:0.3＝（15）：（3）＝（ 5 ）：（ 1 ）
1/2:2/3＝（ 3 ）：（ 4 ）＝（ 6 ）：（ 8 ）
From a to B, it took Xiao Li 4 hours and the principal 3 hours. The time ratio of Xiao Li and Xiao Zhang is (4): (3), and their speed ratio is (3): (4)

If the circumference and height of the bottom of a cylinder are doubled, the volume of the cylinder will be increased by 35 cubic centimeters, and the volume of the cylinder will be () cubic centimeters

Analysis: if the radius of the bottom of the original cylinder is r, and the height is h, then V1 = π R & sup2; h, and the circumference of the bottom is doubled, then the volume of the later cylinder is V2 = π (2R) & sup2; * 2h, and the increased volume is v2-v1 = 7 π R & sup2; H = 35 cubic cm, so π R & sup2; H = 35 / 7 = 5 cubic cm