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In the same coordinate system, draw the image of the following groups of functions: (1) y = x, y = 1 / 2 x, y = 2 X (2)y=1－｜x｜,y=1－1/2｜x｜,y=1－2｜x｜
According to this,
(1) Y = x
The verification of Pythagorean theorem with jigsaw puzzle method is based on the transformation of numbers and shapes, the patching of figures, and the sum of the area of each () and the area equal to () to achieve the goal
Come on, hurry
It's filling in the blanks
The verification of Pythagorean theorem with jigsaw puzzle is based on the transformation of numbers and shapes, the patching of figures, and the area of each part and the area of the whole
In square abcd-a1b1c1d1, if the surface area of the regular triangular pyramid with vertices a, B, B1 and D1 is 4 √ 3, then the edge length of the cube is ()
A√2 B2 C4 D2√2
C
The upper base of a trapezoid is 8 cm. If the lower base is extended by 3 cm, it will become a parallelogram and the area will increase by 24 square cm
Find the area of the original trapezoid
As long as the formula (recursive equation or equation) better not quadratic equation
S=3*h/2
h=2S/3=2*24/3=16
Bottom = 8-3 = 5
S=(5+8)*16/2=13*8=104
The ratio of three sides of △ ABC is 3; 4; 5, and the perimeter of △ def similar to △ ABC is 18
13.5
How to write the composition of your fantasy?
In scientific thinking, there are always factors of poetry. Real science and real music require the same process of imagination. Many things in Einstein's world are people's fantasy at first, and then they become reality a little bit later. Airplanes are the best example: at first, people just watch birds flying in the sky and fantasize about themselves
Seventh grade volume I (Beijing Normal University Publishing Group) synchronous unit exercise of new mathematics curriculum standard page 1, 2, 3 and 4
It's OK to write tomorrow, but it's better to write now and I'll give you more points
Alas!
Sorry, I don't think most people will answer you directly!
Because people of our age basically do not have such information!
I hope you can ask your father and mother!
Besides, they are very happy to finish this assignment with you!
You'll have to do more next time!
Try to finish your homework by yourself!
The scale of the plan of the art primary school is 1:2000. The diameter of the circular flower bed is 3cm. What is the floor area of the circular flower bed?
Tip: the diameter of the round flower bed is 3cm
Because the scale of the plan of art primary school is 1:2000, and the diameter of the circular flower bed is 3cm, the actual diameter of the flower bed is: 3 * 2000 = 6000cm = 60m
The radius is 60 / 2 = 30 meters
Area of circle = π * r * r (π times the square of R)
So the area of flower bed is: 3.14 * 30 * 30 = 2826 square meters
A: the actual area of the flower bed is 2826 square meters
The application of the equation of one variable and one degree in Grade 7 should list the equation of one variable and one degree process
After the Yushu earthquake in Qinghai Province, a company has to transport a batch of relief materials to the disaster area. If it is transported by a truck of our factory, it will take 10 times; if it is transported by a large truck of our transportation company, it will only take 5 times. Now, after four times of transportation by a truck of our factory, the rest is transported by a truck of our factory and a large truck of our transportation company, How many times does it take to transport the rest?
Let's assume that the rest will take x times to complete
1/10×4+（1/10+1/5)x=1
2/5+3/10x=1
3/10x=6/10
x=2
Divide the graph into three blocks with the same size and shape, and each block has an English letter
The classification is as follows:
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