We know that the square of X is equal to 18. When x is greater than 0, the integral part of X is () 2. If the square root of a number is x, the number greater than 5 is

We know that the square of X is equal to 18. When x is greater than 0, the integral part of X is (4)
2. If the square root of a number is x, the number greater than 5 is (X & # 178; + 5)

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1. Given (X-2) + √ Y-X + 1 = 0, find the square root of X + y
2. Given the square of √ (x-1000) + (998-x) = 2000, y = √ m + 8 + √ M-1 + √ 1-m, find the square root of y-x
3. =Solve the quoting problem by using the fractional equation A. The distance between B and a is 40km. A and B start from a to B by bike at the same time. A's speed is 2km faster than B's. When a goes 4km away from B, it is changed to walking, and the speed is reduced by 8km per hour. As a result, a and B arrive at B at the same time to find the speed of a and B Sorry for the wrong words=
4. Using the applied knowledge of fractional equation to solve Xiao Wang bought 20 IC cards and sold them at the price of 15 yuan each. When there were only the last two cards left, Xiao Wang had to sell them at the purchase price in order to sell them out in time. In this way, the profit margin was 2.5% lower than that of selling them all at the price of 15 yuan
5. If the equation x2-4x + k = 0 has a common root with the equation x2-x-2k = 0, then the value of K should be______ ．
6. If the equation x2-4x + k = 0 has a common root with the equation x2-x-2k = 0, then the value of K should be______ ．
7. The square of x-4x + 2k-1 = 0 has two identical solutions to find the solution of K sum equation
8. Noel's equation x + 4x + K + 2K minus 35 = 0 has a root of 0, then the value of K is 0
9. When m is an integer, the equations x2-4x + M = 0 and x2-3x - (m-1) = 0 have integer roots
10. A new coating is prepared with 100 yuan a coating and 200 yuan B coating. Its price per kilogram is 3 yuan less than that of a coating and 1 yuan more than that of B coating. How much is the price per kilogram of this new coating?
11. square root The relationship between the resistance R, power P and the voltage u at both ends of an electrical appliance is p = u & # 178; △ R. the resistance of an electrical appliance is 15 Ω. Now the power of this electrical appliance is 1500 W. please help to calculate how much voltage the electrical appliance should be connected to?
12. What is the result of adding 1 to the third power of 2 and 3 to the third power of 100?
13. Use 0,1,2,3 to form the even number of three digits without repetition kuai
14. How many even four digit numbers without repetition can be made up of the six numbers 0, 1, 2, 3, 4 and 5
15. How many even four digit numbers () A. 6B. 10C. 12D. 24
16. There are six numbers from 0 to 5. 1. How many numbers can be made up without repetition? ② How many even digits can be made up of 5 digits without repetition? ③ How many digits are larger than 24305 among the five digits that can be composed of no duplicate digits?
17. Ask a permutation question: how many six digit numbers can be made up of 3 odd numbers and 3 even numbers from the 10 numbers 0 to 9?
18. How many even four digit numbers can be formed with 01234?
19. What is the number of even three digit numbers with 0,1,2,3,4,5? Do this kind of problem have what knack? Can say analytic process?
20. Use 0,1,2,3,4,5 to form three even numbers without repetition