There are two taboos in learning, self-esteem and self-narrowness. The following is the 20 16-20 17 senior one math final paper I compiled. Welcome everyone to refer to it.
First choose (***3? 8=24 points)
1, 25 stands for ()
A.5 times 2. B.5 times 2. C.5 times 2 plus D.2 times 5.
At three o'clock sharp, the angle between the hour hand and the minute hand on the clock face is ()
90? B.80？ C.70？ D.75？
3, if, the following equation is not necessarily correct ()
A.B. C. D。
4. If it is 0
A.& lt& ltB. & lt& ltC. & lt& ltD. & lt& lt
CCTV's "The Wall is Coming" is a popular program. Ultimate wall? There is such a problem. Given that the algebraic expression x+2y has a value of 3, the algebraic expression 2x+4y+ 1 has a value of. ? Which of the following answers do you think should be chosen so as not to fall into the water?
A. 1
6. If and are similar projects, the value of is ().
a、4 B、4 C、5 D、5
7, if established, then ()
A., same number B, different number
The absolute value of c is equal to d, and at least one of them is 0.
8. If =4 and =7, the value of is ().
a . 9 B- 9 c？ 9 D？ 5 or? nine
Second, fill in the blanks (***3? 6= 18 points)
9. The temperature in a certain place is -3℃ in the morning and rises by 9℃ at noon, so the temperature at noon is℃;
10 has a coefficient of and a degree of;
1 1, about the solution of yes equation, then;
12, nail a batten on the wall, need at least one nail, reason;
13, Agile Real Estate invested 20 million yuan in Qushi? Hometown? The ecological ethnic holiday city is now open. If 20,000,000,000,000 is expressed in scientific notation, it should be;
14, given that the complementary angle of an angle is three times that of this angle, the degree of this angle is;
Iii. Answering questions (***58 points)
15, (5 points) calculation:
16, (5 points) Solve the equation:
17, (6 points) Brief comments:, in which,
18, (6 points) As shown in the figure, what is OP? Is any ray in AO B equally divided by OM? AOP, share equally? POB，？ MON=60？ , beg? Degree of AOB.
19, (6 points) Draw three views of the following figure (note: front view, left view and top view).
20.(6 points) Tengchong Hongye Company lost10.5 million yuan per month from October to March last year, gained 200,000 yuan per month from April to June, and earned10.7 million yuan per month from July to June.
2 1, (8 points) Observe the following equation.
, , ,
Add the two sides of the above three equations respectively to obtain:
(1) Guess and write. (2 points)
(2) Inquiry and calculation: (6 points)
22.(6 points) A merchant will increase the purchase price of TV sets by 35%, then price them and print them? 10% discount for guests, take a taxi to 50 yuan? As a result, each TV set earned 208 yuan.
(1) Find the purchase price of each TV set;
(2) Another merchant sells similar products, the purchase price is increased by 40%, and then it is printed? Twenty percent off? Which merchant should I choose to buy this product?
23.( 10 minute) A field expedition made a 40-kilometer journey from base A to point B, and then made a 30-kilometer journey to point C.
(1) Please draw a road map in the picture. (1 cm means 10 km) (4 points)
(2) Through measurement, please calculate the distance from point C to bottom A, (accurate to 1 km) (2 points).
(3) The base should send instructors to point C, which requires them to arrive within 2 hours. What average speed should the instructors advance to arrive on time? (4 points)
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