a . 6m >-6 b .-5m 0d . 1-m < 2

2. In the following categories, the correct one is ()

A.= 4 B. =4 C. =-3 D. =-4

3. The tax payment method of deposit interest stipulated by the state is: interest tax = interest *20%, and the annual interest rate of bank one-year fixed deposit is 2.25%. One day, when Xiao Wang took out the principal and interest due in one year and paid the interest tax with 4.5 yuan, the money that Xiao Wang had in the bank a year ago was ().

a、900 B、 1000 C、 1 100 D、 12004。 A car driving on the highway, after turning two corners, still drives in parallel in the original direction, then the angle of the two corners may be ().

(a) Turn right 50, then turn right 40 (b) Turn right 50, then turn left 40.

(c) Turn right 50, then turn left 130 (d) Turn right 50, then turn left 50.

5. The ticket price of a park in Changsha is shown in the following table:

The number of ticket buyers is1~ 50,51~ 100, which exceeds100.

Ticket price 10 yuan/8 yuan/5 yuan/person.

More than 50 students from Class A and Class B 100 of Grade 9 in a school went to the park to hold a graduation party, and less than 50 students from Class A and Class B. If tickets were bought separately according to classes, the two classes would have to pay 920 yuan. If two classes buy tickets together, one class has to pay 5 15 yuan. How many people are there in Class A and Class B respectively?

6. As shown in the figure, in △ABC, ∠ABC=500, ∠ACB=800, BP shares ∠ABC, CP shares ∠ACB, then the scale of ∠BPC is ().

A. 1000？ B. 1 100？ C. 1 150？ D. 1200

7. The lengths of the four line segments are 3, 4, 5 and 7 respectively, so the number of different triangles that can be formed from end to end is ().

A.4 B.3 C.2 D. 1

8. In a polygon with equal internal angles, if an external angle is equal to an internal angle, then the number of sides of the polygon is ().

A.5 B.6 C.7 D.8

9. As shown in the figure, △A 1B 1C 1 is obtained by shifting △ABC to the direction of BC by half the length of BC. If the area of △ABC is 20 cm2, then the area of quadrilateral A 1dc 1 is ().

A. 10 cm2 B. 12 cm2 C. 15 cm2 D. 17 cm2

10. At rest, the positions of Xiaohua, Xiaojun and Xiaogang are as shown in figure 1. Xiaohua said to Xiaogang that if my position is represented by (0,0) and Xiaojun's position is represented by (2, 1), then your position can be represented by ().

A.(5，4) B.(4，5)？ C.(3，4)？ d .(4.3)

The square root of 1 1.49 is _ _ _ _ _, the arithmetic square root is _ _ _ _ _, and the cube root of -8 is _ _ _ _ _.

12. The solution set of inequality 5x-9≤3(x+ 1) is _ _ _ _ _.

13. If point P(a, 2) is in the second quadrant, then point Q(-3, a) is in _ _ _ _ _.

14. As shown in Figure 3, there is a Lizhuang near the railway, and now a railway station is to be built. In order to make it most convenient for Lizhuang people to take the train (that is, the shortest distance), please choose a point near the railway to build a railway station (the location has been selected) and explain the reason: _ _ _ _ _ _ _.

15. If you drive from A to B at 60 east-north direction, and then drive from B to C at 20 west-south direction, then ∠ ABC = _ _ _ _ _ _

16. As shown in the figure, AD∨BC, ∠ D = 100, and CA shares ∠BCD, then ∠ DAC = _ _ _ _ _ _

17. Give the following regular polygons: ① regular triangle; ② Square; ③ Regular hexagon; ④ Regular octagon. Can fill the ground with one of the regular polygons is _ _ _ _ _ _ _. (Fill in the serial numbers of all answers)

18. If │x2-25│+ =0, then x = _ _ _ _ _ _, and y = _ _ _ _ _ _.