What kind of pronunciation do I have?

What kind of pronunciation do I have?

1 W ú me, my: my body. My country. My family name. 2 IWE. 3 y, I'm the same as "Yu" to resist

The letter "a" has several pronunciations. What are they?
List the words

1、[ei] face
2、 [ ə] at
3、 [æ] that
4、[ɑ:] last
5、[i] character
6、[e] train

Ng does this have a pronunciation
There is such a combination of pronunciation as ng in pinyin textbooks. Chinese means to read "um", and it is also marked with tone. I don't understand what kind of pronunciation these two syllables can produce. Is there such a combination of pronunciation? Then "en" doesn't also pronounce "um". Why didn't I see such a pronunciation as ng when I was reading? Please understand the guidance of Pinyin,

In fact, Ng is the standard of Chinese Pinyin, which is converted into the international phonetic [&#;] (there is a hook at the bottom, I can't see clearly). In Mandarin, this sound is the vowel of the back nasal, which is usually written as - ng, such as ing, Ong, Eng

How to add and subtract 1 to 9, the result is 10

There are 5 odd numbers and 4 even numbers in 1 to 9. The final result of addition and subtraction must be odd, so it can't be 10

The solution of binary linear equations x + y = 10 2x-y = - 1 is x = a, y = B, then
A ab20 C ab>21 D ab

x+y=10 (1)
2x-y=-1 (2)
(1) + (2) get: 3x = 21
x=7
Substituting x = 7 into (1) yields: 7 + y = 10
y=3
x=a y=b,
a=7 b=3
ab=7*3=21
Choose B

(2 / 3 + 1 / 8) * (1 / 2-9 / 19) can be used for simple calculation, but can not be used for sequential calculation (detailed process)

(2 / 3 + 1 / 8) * (1 / 2-9 / 19)
=(16+3)/24×(19-18)/38
=19/24×(-1)/38
=-1/48

It is known that x = 1 + 2 ^ m, y = 3 + 4 ^ M. try to express y with the algebraic formula containing X

It is known that x = 1 + 2 ^ m, y = 3 + 4 ^ M. try to express y with the algebraic formula containing X
x=1+2^m
m=log2(x-1)
So y = 3 + 4 ^ log2 (x-1)
Where 4 ^ log2 (x-1) = 2 ^ 2 ^ log2 (x-1) = (x-1) ^ 2
So y = 3 + (x-1) ^ 2 = x ^ 2-2x + 4

[1 by 2] 1 + [2 by 3] 1. [49 by 50] 1
=
Who will?

=1-1/2+1/2-1/3+1/3.-1/49+1/49-1/50
=1-1/50
=49/50
Note: 1 / 2 = half, and so on
Split term method

A triangle with a height of 4cm has the same area as a square with a side length of 4cm. The bottom of the triangle is______ Cm

4 × 4 × 2 / 4, = 32 / 4, = 8 (CM), answer: the bottom of the triangle is 8 cm, so the answer is: 8

(x + 12) * 4 / 5 = 42-x to solve the equation

(x+12)*4/5=42-x
(x+12)*4=(42-x)*5
4X+48 =210-5x
4X+5x =210 -48
9x=162
x=18