What is the axis of symmetry from F (2x-1) to f (x)?

What is the axis of symmetry from F (2x-1) to f (x)?

X = quarter

First decompose the following two numbers into prime factors, and then find their greatest common factor. 12 = (); 30 = (). The greatest common factor of 12 and 30 is ()

2:/2/3,5/2/3,6

In the original algorithm of rational number, we define the new operation "+" as follows: when a > or = B, a + B = 2B; when a > or = B, a + B = 2B

Because 12
So 3 + x = 3 + 2 = 4
So (1 + x) * x - (3 + x)
=1×2-4
=2-4
=-2

Known: the length of a line segment is a, which is equal to the length of the known line segment

Make the vertical bisector OC of this line AB, intersect the line AB at O. take OA as the radius, O as the center, intersect OC at D, and connect DA and DB. Then △ DAB is the triangle

If 2x-y = 3, x-2y = 4, then the value of X + y is ()
A. 1B. 0C. -1D. 2

According to the meaning of the question, we can form a system of equations 2x − y = 3, ① x − 2Y = 4, ② ① - ②: x + y = - 1, that is, x + y = - 1, so we choose C

Let the lengths of the three sides of the triangle be 15, 19 and 23 respectively. Now, after shortening the lengths of the three sides by X, an obtuse triangle is formed, and the value range of X is calculated

The obtuse angle must be the angle corresponding to the longest side. After shortening, let the triangle be ABC, ab = 15-x, AC = 19-x, BC = 23-x
Then the obtuse angle is angle A
cosA=(AB^2+AC^2-BC^2)/(2AC*AB)
As long as the cosine A is negative, then the angle a is obtuse

I want to ask
"Ax ^ 2 + BX + C = ax ^ 2 + BX + C holds for any x, then a = a, B = B, C = C" why?
I feel like it makes sense, but I just don't know what it's really about

Ax ^ 2 + BX + C = ax ^ 2 + BX + C holds for any X,
That is, (A-A) x ^ 2 + (B-B) x + C-C = 0 holds for any X,
Since the equation (A-A) x ^ 2 + (B-B) x + C-C = 0 holds for any x, it can only show that it is a zero constant function, that is:
A-a=0； B-b=0 ； C-c=0

Using Mathematica to find the partial derivative, second order partial derivative and total differential of Z = y + sin (XY)

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There are several pieces of go, which can be arranged into a square of 6 pieces on each side. What is the total number of pieces? What is the total number of the outermost layer of the pieces

Total number: 6 × 6 = 36
Outermost layer: 4 × 6-4 = 20

Please come to solve a math problem in the first semester of the third grade of junior high school
A hole with a diameter of D cm appeared at the bottom of a ship diving 5 meters. The crew immediately took rubber material to plug the hole. The force applied by the crew was set as f (n). (G is 10 N / kg). (1) find the functional relationship between F and D; (2) in the case of no tools, what is the maximum diameter of the hole if a person withstands the hole? (accurate to 0.1 cm)
If the maximum force exerted by a person is 800 Newton

(in the following formula, "x ^ y" represents the power y of X, "π" represents the circumference, and ρ represents the density)
(1) Because P = f / S = ρ GH
So f = ρ GHS = ρ water * 10N / kg * 5m * (1 / 100 * d) ^ 2 * π = 5D ^ 2 π
A: F = 5D ^ 2 π
（2） 800=5d^2π
800/5π=d^2
160π=d^2
D = 160 π under the root sign
D is about 22.4
A: the maximum diameter is about 22.4cm
Because my thinking is strange, but this problem should be solved correctly. I hope you can understand what I wrote