Help, Sheila

First of all, I said that most people have a school day, and there are many people who feel how boring they are when they see others saying how colorful they were when they were students. Everyone comes from childhood, and who doesn't want a happy childhood? In today's era, academic qualifications are becoming more and more important, and even now that colleges and universities are expanding their enrollment, the college entrance examination is still so important.

Talking so much nonsense, the main thing is that don't be tired of studying, participate in some outdoor activities appropriately, participate in sports activities, find friends from time to time, relax and relax your mood, picnics, and seminars, all of which are formalities. I have worked hard, even if I fail, it is not a big deal, even now there are many students who participate in Gaofu every year, there is no shame in this, Ma Yun, the boss of Alibaba, and Lao Yu, the boss of New Oriental Training, are all people who have participated in Gaofu for three years, can you say that they are not successful? I've been working for almost four years after graduating from university, so I know how you feel, communicate with your parents well, and don't let them put too much pressure on you.

Every day every year, too many people comment on China's exam-oriented education, and many people hate it, saying that they want to abolish it, but since there is this model, it means that there is a need for existence, can you have a better way to replace it? So, let's let it stay there for now. What we have to do is just to ask everyone not to look at people by their academic performance in school, not to mention what the grades of the two old college students I mentioned above were like when they were young, the world's former first blessing, Bill, whose academic performance was not very good that year, and he did not graduate from college.

So we have to learn to speak with strength, if we succeed, everything is a good story, and what if we fail? Stand up, pat the dirt off your body, and stride forward. Success has nothing to do with personal appearance and academic qualifications, the most direct relationship is your heart.

Oops, you're so stupid, everyone has Sichun, don't deliberately suppress it, it's okay.

First: cosx=cos(2)x 2-sin(2)x 2=1-2sin(2)x 2

Then: f[g(x)]=1+cosx=2-2sin( 2)x 2 let g(x)=x

then f(x)=2-2x( 2);

If x is exchanged for x, then f(x)=2-2x(2).

Interest is 500*, interest tax is; Then her donation is 500+ yuan.

The deposit is a one-year fixed term, the interest rate is, she has saved a total of 500 yuan, then the interest is 500 yuan), the interest tax is 20, then the yuan), so how much interest is there in total? meta). In the end, the total amount of money donated is 500 9 509 (yuan), which is 500 yuan deposited in the bank plus interest.

A: She donated a total of 509 yuan.

First of all, we have to calculate the interest, and the calculation of interest is 500* This is interest, but to subtract the interest tax, the calculation of interest after tax is So the net interest is 9, plus 500 yuan of principal, and she donated a total of 509