The mathematical problem expresses n as the product of four natural numbers less than 1 Given n = 88... 8 (1000) 00... 0 (1000), what is the product of 4 natural numbers greater than 1?

111.. (1000 pieces 1) × 8 × 2 × 5000.. (999 pieces 0)

The relationship and concept between natural number and integer
Are natural numbers integers? Natural numbers have 1, 2, 3, such as 3.2. Are they natural numbers? Are natural numbers integers or integers natural numbers?
This concept is always indistinguishable, now in review, messy. The clearer the better

All natural numbers are integers
According to the previous definition, natural numbers are positive integers without 0
Now, natural numbers include 0
But natural number must not include non integer, such as 3.2 is not natural number
Integers can have positive, negative and 0, and natural numbers can only be positive or 0

Can the exponent of a number be a decimal?

Yes, the exponent is a fraction, that is, several times root. Except for the exponent 0 can't have negative number, any number can have any exponent. The exponent can be real number, imaginary number or complex number. It's more complex to calculate the exponent of complex number. It needs to use the base e of natural logarithm, sine and cosine

The sum of number a and number B is 360. Number a is four fifths of number B. what is the sum of number a and number B?
why?
Use the knowledge of fractions.

B is unit one, a tree is four fifths
360 divided by (one + four fifths) = 200
360-200＝160
A: 160
B: 200
Choose me

If the X-1 power of 3 plus the square of x plus 2A equals 0, there are two solutions

3 ^ (x-1) + x ^ 2 + 2A = 03 ^ (x-1) = - x ^ 2-2a, it is regarded as y = 3 ^ (x-1) and y = - x ^ 2-2a two curves intersection problem, there are two solutions is to have two intersections, and because y = 3 ^ (x-1) is a monotone increasing function and a downward convex function, and y = - x ^ 2-2a is an upward convex function, as long as the two functions are staggered, there must be

Judgment: 5 / 8 of the number a is equal to 5 / 9 of the number B, so the number a is smaller than the number B

It is known that 5 / 8 of the number a is equal to 5 / 9 of the number B, so the number a is smaller than the number B (right)
Because: 5 / 8 of a = 5 / 9 of B
Namely: number a × 5 / 8 = number B × 5 / 9
Number a = number B × 5 / 9 △ 5 / 8 = number B × 8 / 9
That is, the number a is only 8 / 9 of the number B
Therefore, the number of a is smaller than that of B

Let a be a 3x4 matrix with rank 3. If M1, M2 are two different solutions of AX = B, then its general solution is
Let a be a 3x4 matrix with rank 3. If M1 M2 are two different solutions of the system of non-homogeneous linear equations AX = B, then its general solution is? Hope to give an explanation,

It is known that the fundamental solution system of AX = 0 contains N-R (a) = 4-3 = 1 vector
So m1-m2 (≠ 0) is the fundamental solution system of AX = 0
So M1 + C1 (m1-m2) is the general solution of AX = B
Since the expression of general solution is not unique, such questions are usually given as multiple choice questions

It takes six minutes for a part to be made, five minutes for B, and five minutes for C. 4. The task of 1590 parts is assigned to three of them
How many should be allocated to each person

Hello ~ ~ glad to answer for you ~ ~ the work efficiency of a = 1 / 6, the work efficiency of B = 1 / 5, the work efficiency of C = 1 / 4.5 = 2 / 9, the total work efficiency of three people = 1 / 6 + 1 / 5 + 2 / 9 = 53 / 90, the proportion of work efficiency of a in the total work efficiency = 1 / 6 △ 53 / 90 = 15 / 53, the proportion of work efficiency of B in the total work efficiency = 1 / 5 △ 53 / 90 = 18 / 53, the proportion of work efficiency of C in the total work efficiency = 2 / 9 ^

4.7x-25 = 2.7x + 65 (solving equation)

4.7x-2.7x=65+25
(4.7-2.7)x=90
2x=90
x=90÷2
x=45

There are three granaries in a grain station. The grain stored in warehouse a accounts for 25% of the total grain stored. If 16 tons of grain are taken from warehouse C and put into warehouse A, 7.5 tons are taken out and put into warehouse B

The total amount of stored grain is: 16 (1 / 3-25%) = 192 (tons)
Original warehouse A: 192 × 25% = 48 (tons)
Original warehouse B: 192 △ 3 + 16 + 7.5 = 87.5 (tons)
C warehouse: 192-48-87.5 = 56.5 (tons)

The mathematical problem expresses n as the product of four natural numbers less than 1 Given n = 88... 8 (1000) 00... 0 (1000), what is the product of 4 natural numbers greater than 1?