If - 3

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• 1. a. B is opposite to each other, C and D are reciprocal to each other, M = 4, find the value of 2A - (CD) &# 178; &# 186; &# 186; &# 185; + 2b-3m
• 2. It is known that a, B and C are the three sides of △ ABC, and B + C-B + b-c-a + C-A-B is simplified Could you be more detailed? Thank you! ER.. Excuse me? dial the wrong number.. B + C-A + b-c-a + c-a-b.. Sorry...
• 3. There are 45 students in class 6 (1), and the average score of mathematics is 93.2. There are 50 students in class 6 (2). The total score in this mathematics test is 306 points more than that in class 1, and the average score in class 6 is 93.2 (2) What is the average score of the class
• 4. A cylindrical glass with a bottom circumference of 3.14 decimeters contains some water, which accounts for 23% of the capacity of the glass. Put two eggs of the same size into the glass and immerse them in the water. At this time, the water surface rises by 8 cm, just level with the mouth of the glass. How much is the volume of an egg and the capacity of the glass?
• 5. There are 42 students in class 1 and 38 students in class 2 of grade 6 in a school. The average score of all the students in the two classes in the final mathematics examination is 87. The average score of class 2 is 2 points higher than that of class 1. What is the average score of class 2?
• 6. The number of boys in a primary school is the same as that of girls. If we start out 1/3 of boys, forty percent of them will be transferred from girls. The number of boys in a primary school is the same as that of girls. If we first transferred 1/3 from boys, forty percent from girls, together with group gymnastics, and 14 from boys, we would form volunteer service teams. The ratio of remaining girls to boys is 5:4. How many students are there in six grade? I have been thinking about arithmetic for a long time. Sobbing, sobbing,
• 7. The answers and questions on page 49, 50, 51, 52, 53 and 54 of the sixth volume of mathematics exercise book of pep
• 8. The shadow length of the flagpole is 6.4 meters, and that of the teaching building is 9.6 meters. Can you find out the height of the flagpole and the teaching building respectively? kuai kuai kuai kuai kuai kuai kuai kuai kuai kuai kuai
• 9. Grade six mathematics classroom Standard 100 points reference answers The circumference of an isosceles triangle is 35 meters, and the bottom is one third of the waist. How many meters are the bottom and waist of this triangle?
• 10. 5/6+1/6÷50％ = = = 12％x=8.4 x+20％x=6 30+62.5％x=80 5x+25％x=1.05 The accuracy must be high
• 11. [urgent] simplify x-3-4-x, where x is less than 3
• 12. If - 2 < x < 3, simplify x + 2 + x-4
• 13. If a is known to be greater than 1, simplify A-1 + A + 2 Then summarize the solution skills (inequality, which I don't quite understand)
• 14. If x > 4 is known, simplify x-3 + 4-x
• 15. It is known that x is a rational number greater than - 2 and less than 3, and the reduction of x = 2 - X - 3
• 16. When - 1 ＜ x ＜ 2, simplify X-2 - x + 1
• 17. 3(x+8)-5=-4(2x-7) This is the equation
• 18. On the linear inequality of one variable with absolute value~ Given that the solution set of inequality | a-2x | B (b > 0) is {x | x ＞ 4 or X ＜ - 5}, find a-b The finer the better Good answer I will add more points
• 19. Inequalities with absolute values 1.|x^2-1|
• 20. Given that the slope of a tangent line of the curve y = x2-3lnx is 5, the abscissa of the tangent point is 0