(both words and symbols are required!)

(both words and symbols are required!)

6、 Air: nitrogen (N2) and oxygen (O2) 2, water gas: carbon monoxide (CO) and hydrogen (H2) 3, gas: carbon monoxide (CO) 4, natural gas: methane (CH4) 5, limestone / marble: (CaCO3) 6, pig iron / steel: (FE) 7

Calculation of inflation rate
Consider the impact of inflation in a two person economy: Bob is a soybean farmer and Rita is a rice farmer. They always consume the same amount of rice and soybeans. In 2008, soybeans cost $1 and rice $3
Now suppose the price of soybean is $2 and rice is $4 in 2009. What's the inflation rate?
My solution: according to the CPI, take 2008 as the base year, the CPI of that year is 100, CPI in 2009 = [(2 + 4) / (1 + 3)] * 100 = 150, so the inflation rate is (150-100) / 100 * 100% = 50%, but the answer in the book is 66.7%, why?

What is the sum of two prices
Correct algorithm:
Soybean inflation rate = (2 / 1-1) * 100% = 100%
Rice inflation rate = (4 / 3-1) * 100% = 33.33%
Because soybeans and rice account for 50% respectively, the total inflation rate = 100% * 50% + 33.33% * 50% = 66.67%

If n random trials are conducted and event a occurs m times, then the frequency M / N of event a is the probability of event a,
The frequency M / N of event a is the probability of event a
Is that right or wrong? Why

It shouldn't be right

The formula of magic cube cfop
Is cfop's formula a complete recitation or a direct practice? I want experience, not a long excerpt

Cfop is not a rote thing
I suggest you go to the cfop of trilobites
I personally learn F2L by reciting the principles in an understanding way. After knowing the principles, I can grasp them with my hands. I have no formula in my heart, and I have a formula in my hand
Oll is the infinite cycle to grasp the similar image of the relevant, this memory method trilobites have induced it
PLL is broken one by one according to the probability of occurrence

Kmhgg magic cube cfop formula magic cube cfop formula

Go to Rubik's cube station to see cfop

All 119 formulas of Rubik's cube cfop rule
It must be complete

Cfop to match the picture to see ~ so can only send the website
However, ~ cfop learning is also skilful, and there is no need to recite 119 standard formulas. The non-standard skills of some experts are also valuable, and ease of use is its biggest feature
Cfop learning website:
See the selection bar above? There are cross, F2L, oll, PLL~
I don't know what speed stage you are in

Explanation of fifth order magic cube formula
TR2 B2 U2 TL U2 TR' U2 TR U2 F2 TR F2 TL' B2 TR2
TL' U2 TL' U2 F2 TL' F2 TR U2 TR' U2 TL2
MU' R U R' F R' F' R MU
TR2 B2 TR' U2 TR' U2 B2 TR' B2 TR B2 TR' B2 TR2
Explain and help me to draw out the picture, five magic cube, 100 points is not so easy to get, don't give me the website!

These are all the five order magic cube merging edge Formula 1 & nbsp; TR2 & nbsp; B2 & nbsp; U2 & nbsp; TL & nbsp; U2 & nbsp; tr & nbsp; U2 & nbsp; F2 & nbsp; tr & nbsp; F2 & nbsp; TL & nbsp; 39; & nbsp; B2 & nbsp; tr22 & nbsp; TL & nbsp; 39; & nbsp; U2 & nbsp; TL & nbsp; 39; & nbsp

What does each letter of the fourth-order Rubik's cube formula represent?

F front clockwise b back clockwise r right clockwise l left clockwise u top clockwise D bottom counter clockwise after the letter 'is the opposite side counter clockwise. You can go to the Rubik's cube station to see the pictures there, without looking at the letters

The meaning of the letter of the fifth order Rubik's cube reduction formula

The letter meaning of the advanced formula of the third order magic cube
What's the difference between u and u '? R and R'

U is the top layer rotated 90 ° clockwise
U 'is the top layer turning 90 ° counterclockwise
R is 90 ° clockwise on the right
R 'is 90 ° counterclockwise on the right
R2 is 180 degrees clockwise on the right
and so on
The abbreviation of each side is the first child of an English word
I hope I can help you!