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1. The coordinates of the points which are symmetric about the x-axis are_________ The coordinates of a point symmetric about the y-axis are__________ On the symmetry of the origin
The coordinates of (- 3,4) points symmetric about X axis are_ （-3,-4）
The coordinates of a point symmetric about the y-axis are (3,4)
The coordinates of the point symmetrical about the origin are (3, - 4)
On the point coordinates of x-axis symmetry
On the point coordinates of y-axis symmetry
On the point coordinates of origin symmetry (x + minus, y + minus)
The volume of a pool is 3 cubic meters, and its floor area is 3 square meters
So the height of the pool is three meters,
Use 5,7,6,3 to calculate 24 points
3×（7+6-5）=24
[(7 - 5) -(-6)] × 3=24
（7＋5）*6/3=24
As shown in the figure, the red pen is the answer. What's wrong with my formula?
Pro, you ask for V1, and the title requires you to ask for the volume of v2. Therefore, you should subtract V1 from the total volume, which is equal to v2
How many cubic decimeters is 0.8 cubic meters? How many liters is 900 cubic centimeters? How many meters is 4.8 meters
How many cubic decimeters is 0.8 cubic meters, how many liters is 900 cubic centimeters, how many meters is 4.8 meters, how many centimeters is 3:20 minutes?
800 0.9 480 3.2
The length of an edge of a geometry is root 10, the projection length of the edge in the front view is root 7, and the projection length of the edge in the left view is root 6. Calculate the projection length of the edge in the top view
Don't copy, Baidu has other answers. But I don't know why we can set the edge length as the diagonal of a cube
In fact, it is not deliberately set as the diagonal of the geometry, just for the convenience of calculation
Draw the projection of BC in plane α (front view) to get RT △ ABC; draw the projection in plane β (left view) to get RT △ ACD
It is easy to get ad = √ 3 by calculation, so CE = √ 7
If ad = 0, the edge is parallel to the plane γ
The image of the function y = 3x ^ 2-6x + 4 is obtained by translating y = 3x ^ 2 into () units, and then to () units
The image of parabola y = 2x ＾ 2 is first shifted m units to the left, and then n units to the upper. The parabola passes through points (1,3) (4,9), then M = (), n = ()
After formulation, y = 3x ＾ 2 + 6x-4 axis of symmetry and fixed-point coordinates are reduced to the form of y = a (x + m) ＾ 2 + K
It is known that the vertex coordinates of the image of quadratic function are (2,2), and the image of quadratic function can be obtained by translating the parabola y = - 2x ＾ 2. The analytic expression of the quadratic function is obtained
First
Right, 1 unit; up, 1 unit
The second one is too simple
You use the recipe yourself
Remember the formula: "add on the left and subtract on the right"
What is the effect of soil stabilizer on soil? All the effects are explained in detail
Solidification of soil. Due to the existence of water, through a series of dissolution and ionization, the cations around the soil particles form an electric double layer structure, which makes the soil become a colloid, and the strength of the soil is relatively poor. Therefore, in order to solidify the soil, the water in the soil must be removed to prevent the dissolution and ionization of this series
5000（1+x）^2=7200
5000（1+x）²=7200
（1+x）²=1.44
1 + x = 1.2, or 1 + x = - 1.2
X = 0.2, or x = - 2.2
In the triangle ABC, O is the coordinate origin, a (1, cosx), B (SiNx, 1), X is less than or equal to 90 degrees and greater than 0 degrees, then when the area of the triangle OAB reaches the maximum, x =?
Draw a graph: y-axis, x-axis, y = 1, x = 1, point a moves on the line of x = 1, point B moves on the line of y = 1, s (OAB) = 1 * 1-1 / 2 * 1 * sina-1 / 2 * 1 * cosa-1 / 2 * (1-cosa) (1-sina) = 1-1 / 2 (Sina + COSA) - 1 / 2 (1-sina-cosa + sinacosa) = 1-1 / 2-1 / 2sinacosa = 1 / 2-1 / 4sin2aa
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