How many cubic meters is one cubic centimeter and how many cubic meters is one cubic decimeter

How many cubic meters is one cubic centimeter and how many cubic meters is one cubic decimeter

zero point zero zero zero zero zero one

How many cubic decimeter cubic meter is one cubic centimeter?

1 cubic centimeter = 1 / 1000 cubic decimeter = 1 / 1000000 cubic meter

How many kilograms is a 1 cubic centimeter neutron star, equivalent to how many cubic meters of iron

Neutron star density ρ = 1 * 10 ^ 11kg / cm ^ 3
m=ρV=1*10^11*1=1*10^11kg
Density of iron ρ iron = 7.8 * 10 ^ 3kg / m ^ 3
V = m / ρ Fe = 12820512.82 m ^ 3

The sum of the top and bottom of a trapezoid is 40 decimeters, which is five times as high. Its area is () square decimeters

The height is 40 △ 5 = 8 decimeters
So the area is 40 × 8 △ 2 = 160 square decimeters

What is the remainder of 478 × 296 × 351 divided by 17?
There is another question: in a math test, there are 36 students who answered the first question correctly, 32 students who answered the second question correctly, and 22 students who answered both questions correctly. How many people are wrong in both questions?

(1) The remaining one is OK
(2) 48-36 - (32-22) = 2 (person)

In integers from 1 to 400, how many integers are there that are divided by 3, 5 and 7 to make up 2

The least common multiple of 3,5,7 is 3 × 5 × 7 = 105
The minimum number of 2 is divided by 3,5,7
105+2=107
107+105=212
212+105=317
317+105=422>400
So 1-400, there are three numbers that meet the requirements

A number, divided by 2, divided by 1, divided by 3, divided by 2, divided by 4, divided by 3, divided by 5, divided by 4, asks the qualified minimum number
But be sure!

According to the meaning of the title, this number can be divided by 2, 3, 4 and 5 after adding 1
Then the least common multiple of 2, 3, 4 and 5 can be calculated as follows:
First, it must be a common multiple of 2 and 3, so it must be a multiple of 6
It is also a multiple of 5, so it must be a multiple of 30
Again, 30 can't be divisible by 4, so it's not 30. After multiplying by 2, 60 can be divisible by 4, so 60 is the least common multiple of 2, 3, 4 and 5
So the number in the original problem can be subtracted from 60 by 1
The answer is 59

October 1, 1997 National Day is a Wednesday. Q: after 1985.1985 (1997 divided by 1985), what day is the week?

Solution 1: 1985 / 7 is about 283
283X7=1981
1985-1981 = 4 days
4+3=7
Because after 1981 days is Wednesday, so after 1985 days is Sunday
Solution 2: 1985 / 7 = 283 Yu 4
4+3=7
It's Sunday after 1985

5.4.3.2.1 general formula

an=5-（n-1）

Sum formula of the first n terms of arithmetic sequence

Sn=na1+n(n-1)d/2
=(a1+an)*n/2