九年级(初三)数学下册期末测试题(9th grade (grade three) in the final exam of mathematics).doc
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九年级(初三)数学下册期末测试题(9th grade (grade three) in the final exam of mathematics)
- 1 - - grade 1 - grade 9
Ninth grade
Ninth grade,
((
(grade
The third grade
3)
))
Part ii)
Part ii book1book 2
Final survey
The final exam is final
The final test
Have a try
Test questions
Topic title
The topic (
((
(the three
Three three
3)
))
)
a
One by one
A,
,,,
Multiple choice,
Choose the topic choice
Choice (
((
(total
A total of a total of
A total of eight
88
Item 8 road,
Its a small problem
The item,
,,
Each item,
Every little problem
Each item 4
44
Four points
hoping
Points,
,,
, a total of
A total of a total of
A total of 32
3232
32 points
hoping
Points)
))
)
1. If the equation x2 minus 5x = 0 is a root
A, the value of a2 minus 5a plus 2 is ()
A. -2 B. 0 c.2 d. 4
2.
The radius of O is equal to 5, the radius OC is perpendicular to the string AB, and the vertical foot is D, if OD = 3, the length of string AB is ().
A.10b.8 c.6 d.4
How do you get a parabola by translating the paraboloid y = 2x2
Y is equal to 2 times x plus 3, 2 plus 4, right? (a)
A. Shift 3 to the left and 4 to the left
B. Shift 3 to the left, 4 more units down
C. Shift 3 to the right and 4 to the right
D. Shift 3 to the right and 4 to the right
4. Small li stood far from the tree horizontal distance is a m, press with a right-angle triangle containing 30 ° as shown
The height of the tree was measured, and she knew that Lizs eyes were 1.5 meters above the ground
The height of a tree is ()
arjun
)
3
3
(a B.m 3 (a)
c.
)
3
3
5.1 (a + D.m) 35.1 (a +
5. As shown in the picture, at a certain point as center, delta
AOB is going to have a change of potential delta CDE, remember delta AOB and delta CDE
The ratio of the edge to the other is k, and the coordinate of the center is similar to that of the center
The value of k is () -2 - -2
A. (0, 0), 2 b.2
one
), (2, 2
C. (2, 2), 2 D. (2, 2), 3
6. Parabola y =
X2 + 1 around the origin O turn 180 °, the family is the parabola of turn after the parsing is: ()
A.y = -
X2, which is eq
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