）+(?) + (?) = 61 prime numbers in brackets Write 6 urgent questions in summer garden

）+(?) + (?) = 61 prime numbers in brackets Write 6 urgent questions in summer garden

3+19+39=61
5+13+43=61
7+13+41=61
11+13+37=61
13+19+29=61
17+7+37=61

Since a lot of can modify both countable and uncountable, it is still a great deal of when encountering uncountable nouns?

A great deal of more formal!

In RT △ ABC, ∠ C = 90 ° if ∠ a ≠ 45 °. Verification: AC ≠ BC
Proof: suppose AC = BC
Because ∠ a ≠ 45 ° and ∠ C = 90 °, so ∠ B ≠ a,
So AC ≠ BC, which contradicts the hypothesis
So AC ≠ BC
If there is no mistake in the above proof, point out the proof method; if there is any mistake, please correct it

Because AC = BC
therefore

How to express the phrase "introduce yourself to the class" in English?

Introduce oneself to the classmates
Oneself varies according to the situation

1. BBC 2. CAAC 3. NBA 4. PRC 5. Kg 6. CD 7. MTV 8. WTO can you write more than two Chinese meanings of them
It means two, not one, uncle

1. BBC - BBC 2. CAAC 3. NBA - National Basketball League 4. PRC - People's Republic of China 5. Kg - kg, formerly known as kg 6. CD - CD, DVD 7. MTV - Film (production method) TV 8. WTO - World Trade Organization -------- wow

1.The class （got out of hand） soon because the teacher was inexperienced.
2.(Immediately) you get there,please ring me up.
3.You will get lost easily unless you have a map.
4.Few people are aware of the danger of the polluted water.
5.Your words don't make sense to me.
6.It's a (piece of cake) for Jim to do these exercises.
7.How will you deal with the wallet you found on your way home?
8.The library is (full of) newspapers and magazines.
9.We won't finish the work on time if you don't help us.
10.I have never seen more beautiful scenery before.
If there are brackets, only the ones in brackets should be changed

How are you going to change it?

The numerator plus 5 equals 1 / 2, and the denominator minus 3 equals 1 / 3. To find this fraction, we need to use the binary quadratic equation

Let this fraction be x / y
（x+5）/y=1/2
x/(y-3)=1/3
2(x+5)=y
3x=y-3
3x=2(x+5)-3
3x=4x+10-3
4x-3x=7
x=7
21=y-3
y=24
So it's 7 / 24

English words + ies

county
party
activity
family
carry
cry

Let x + Y-11 ≥ 0, 3x-y + 3 ≥ 0, 5x-3y + 9 ≤ 0 denote the plane region as D. let exponential function be a function
Let x + Y-11 ≥ 0,3x-y + 3 ≥ 0,5x-3y + 9 ≤ 0 denote the plane region as D.Y = a ^ X. if there are points on region D on the image, then the value range of a is

First, draw the feasible region x + Y-11 ≥ 0, 3x-y + 3 ≥ 0, 5x-3y + 9 ≤ 0, which is an open region. Point (2,9) is a boundary point of D, so a ^ 2 is less than or equal to 9, so a is in [- 3,3] and a is greater than 1, so a is in (1,3)]

English translation
1. Play an important role
2. In a period of time
3. Closer to ～

1.play an important part in...
2.In a period of time
3.much closer (to...)