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1. The cuboid is 3 in length, a in width and a in height. The cuboid's volume is expressed by monomial, and its coefficient and degree are pointed out 2. The following statement is correct: A. X & sup2; y is not a monomial, b.m-n is a monomial C. Both 0 and X are monomials 3. Let n be an integer, then all even numbers can be expressed as___ All odd numbers can be expressed as____ The number divisible by 5 can be expressed as___ The number of remainder 1 divisible by 3 can be expressed as____ . 4. A monomial with letters A and B, the coefficient is - 1, the degree is 3______ 5. After a certain kind of wheat flour is ground into flour, its flour yield is 65%. Then, what is the mass of flour obtained after M kg of wheat is ground into flour? 6. The coefficient of - A & sup3; B & sup2; C is___ The number of times____ Yes____ Submonomials
The square of 3a, coefficient 3, degree 2
C
2n, 2n plus 1, 5N, 3N plus 1
-ab*
65%m
-1,6,6
You have to study hard
A cylinder can be regarded as a circle of () around its (), and a sphere can be regarded as a circle of () around its ()
A cylinder can be described as a result of a (rectangle) rotating around its (edge)
A ball can be seen as a circle revolving around its center
Given that a and B are reciprocal, C and D are opposite, and | x | = 3, find the value of 2x2 - (ab-c-d) + | AB + 3 |
According to the meaning of the question: ab = 1, C + D = 0, x = 3 or - 3, then the original formula = 18-1 + 4 = 21
The numbers 0, 1, 2, 3 and 4 can be used to form several natural numbers less than 1000 without repeating numbers
Like the title,
A total of 68, including
Three digit 4 * 4 * 3 = 48
Double digit 4 * 4 = 16
Four single digits
How many natural numbers can be made up of 0,1,2,3,4
One digit five
Double digit 4 * 4 = 16
Three digit 4 * 4 * 3 = 48
Four digit 4 * 4 * 3 * 2 = 96
Five digit 4 * 4 * 3 * 2 * 1 = 96
261 in total
How many natural numbers less than 1000 without repeated numbers can be composed of numbers 0, 1, 2, 3, 4 and 5
One digit six
Two digit 5 * 5 = 25 (take 10 digits first, not 0, total 5 kinds, then take one digit, 5 kinds)
Three digit 5 * 5 * 4 = 100
6 + 25 + 100 = 131
How many natural numbers (including 0) less than 1000 without repeated numbers can be composed of numbers 0, 1, 2, 3 and 4?
Because the hundreds cannot be 0, there are 48 positive integers with three digits less than 1000. Because the tens cannot be 0, there are 16 positive integers with two digits less than 1000, and there are 5 positive integers with one digit less than 1000. Therefore, there are 48 + 16 + 5 = 69. A: 69 natural numbers less than 1000 can be composed of 0, 1, 2, 3 and 4
1. How many natural numbers can be made up of 1, 2, 3 and 4?
2. How many even four digit numbers can be made up of 1, 2, 3 and 4?
3. How many three digit numbers can be made up of 0, 1, 2 and 3?
4. How many even three digit numbers can be made up of 0, 1, 2 and 3?
Please use the formula to solve the problem
RELATED INFORMATIONS
- 1. The symbol (x) represents the smallest positive integer greater than or equal to x, such as: (0.3) equals 1, (3.2) equals 4, (5) equals 5. Then (1 / 2) equals ------; (6.01) equals ------;
- 2. Score multiplied by score, with () multiplied by (), () multiplied by (), get (urgent)
- 3. Please help me out 10 calculation problems of multiplying fractions by integers
- 4. Add 150 points! Is the formula of Dao algebra! Challenge the limit~ Find the difference between the quadratic power of 2x - 3xy + 7Y and the quadratic power of 6x - 5xy - 2Y! Note that it is difference! Is it the quadratic power of - 4x + 2XY + 9y! : if the input value of X is 1, the output value is 1: if the input value of X is - 1, the output value is - 3. When the input value of X is half, the output value is - 4 / 3? As shown in the figure: the cube of input x * k + B, output K should be 2, B should be - 1, right? Two full answers ~ add 200 points!
- 5. A high school function problem do somebody a favour, Y ^ 2 = - x ^ 2 + 4ax-3 x ∈ [1,2] to find the range,
- 6. Given f (x) + 2F (1 / x) = x (x is not equal to 0), how to find f (x)?
- 7. A school needs to hold a student congress, which stipulates that each class selects one representative for every 10 students. When the remainder of the number of students divided by 10 is greater than 6, another representative will be selected. Then, the functional relationship between the number of Representatives y elected by each class and the number x of students in the class can be expressed as () A. y=[x10]B. y=[x+310]C. y=[x+410]D. y=[x+510]
- 8. Finding the number of zeros of a function ①-x^2-3x-2 x≤0 g(x)=f(x)+x={ ②x-2 x>0 Step by step I'm not very good at it { ①-x^2-3x-2 x≤0 g(x)=f(x)+x={ { ②x-2 x>0
- 9. A high school on the concept of function to understand the problem Why should we pay attention to the change of the value range of the independent variable when we use the substitution method in the method of finding the analytic expression of a function, otherwise we may not get the incorrect result?
- 10. If the equation x ^ 2 + (m-1) x + 1 = 0 has a solution in the interval [0,2], find the value range of M
- 11. 1. 13 out of 49 * 21 + 28 * 13 out of 49, can it be simplified? 2. About 5 / 2 of XX road needs to be reconstructed. 30 workers are sent to carry out the construction. One third of the total length of XX road is reconstructed in the first week, and one third of the kilometer is reconstructed in the second week. How many kilometers are left to be reconstructed? (attention unit)
- 12. >Where do the perimeter of these figures refer to_ Teaching plan of unit 3 quadrilateral
- 13. What is the relationship between the two calculation methods
- 14. A 3 5 7 9 11 B 4 7 10 13 16 How much is a when B = 100?
- 15. (1) In a right triangle, the ratio of the two acute angles is half, and the two acute angles are () degrees and () degrees respectively (2) If the number of male students is five sixths of that of female students, the ratio of male to female students is (), what is the percentage of male students in the total number (3) One third of a is equal to one fourth of B. If a is 90, B is () (4) One seventh of a book can be read every day in () days. After reading it for three days, how many pages are there (5) Xiaohong walks two thirds of an hour and eighteen fifths of an hour. She walks () kilometers per hour, and it takes () hours for her to walk 1 kilometer on average
- 16. Now there are four numbers. Take the sum of every three numbers as 22.24.27.20. What are the four numbers?
- 17. If you divide 50 into the sum of two prime numbers, you have______ Seed method
- 18. In the midterm test, a student's average score in other subjects is 94. If mathematics is included, the average score in each subject is 95
- 19. On the rule of parallelogram The maximum tensile force a string can bear is g. now tie an object of gravity g to the middle point of the string, hold the two ends of the string respectively with two hands close, and then slowly separate left and right along the horizontal direction. When the string breaks, the included angle between the two sections of the string should be slightly greater than A．30° B．60° C．90° D.120° After reading the answer, I don't know why when both forces are g and their resultant force is g, the included angle is 120 degrees? It seems that a parallelogram with an internal angle of 120 degrees cannot be divided into two equilateral triangles?
- 20. If 12 tons of grain are transported from warehouse A to warehouse B, the ratio of grain stored in warehouse A to warehouse B is 9:13. How many tons of grain were stored in warehouse B? I'm in a hurry