Một vật chuyển động với vận tốc v=40+18t-t^2 (m/s). trong 20 giây đầu vận tốc lớn nhất của vật là bao nhiêu?

Tìm tất cả các giá trị thực của tham số m sao cho phương trình \(3\sqrt{x-1}+m\sqrt{x+1}=2\sqrt[4]{x^2-1}\) có hai nghiệm thực

i'll see you after the show and give you $20 for the ticket, or __ much they cost
a. whatever b. nevertheless c. besides d. however

The growth in the economy makes people’s living condition better.

=>The more the economy grows, the better people's living condition is

2.People learn a lot of things as they travel far

=>The father people travel, the more things they learn

3.This is the most delicious cake I’ve ever tasted

=>I’ve never eaten such a delicious cake

4.I’ve never met any more dependable person than George

=>George is the most dependable person I've ever met

5.There isn’t anybody as kind-hearted as your mother

=>Your mother is the most kind-hearted person.

6.There is no better teacher in this school than Mr.John

=>Mr.John is the best teacher in this school.

7.Have you got any bigger than that one?

=>Is this the biggest you have got?

8.Love is more important than money

=>Money isn't as importand as love

9.I can’t cook as well as my mother does

=>My mother cooks better than I do

10.A horse is stronger than a dog

=>A dog isn’t as strong as a horse

11. Mr.Phan drives more carelessly than he used to

=>Mr.Phan doesn’t drive as carefully as he used to