Tìm x, biết: a) $x^{2}$ = 81 b) $x^{2}$ = -100 c) ($x-3)^{2}$ = 100 d) ($3x+5)^{2}$ = 49 e) ($3x+5)^{3}$ = 729 g) ($5x-2)^{2}$ = 100 h) ($5x+7)^{3}$ = 1000 k) ($4x-2)^{5}$ = 243 Help me

Combine These Pairs Of Sentences Using Relative Pronouns: WHO/THAT/WHICH/WHOSE... e.g. The students will be awarded the present. The students' reports are very valuable. ->The students whose reports are very valuable will be awarded the present. 1. The first boy has just moved. He knows the truth. 2. I don't remember the man. You said you met him at the canteen last week. 3. The only thing is how to go home. It make me worried. 4. The most beautiful girl lives city. I like her long hair very much. 5. He was Tom. I met him at the bar yesterday. 6. The children often go swimming on Sundays. They have much free time then. 7. They are looking for the man and his dog. They have lost the way in the forest. 8. The tree has lovely flowers. The tree stands near the gate of my house. 9. My wife wants you to come to dinner. You were speaking to my wife 10. The last man has just returned from the farm. I want to talk to him at once.

$\frac{x+1}{99}$+$\frac{x+2}{98}$+$\frac{x+3}{97}$+$\frac{x+4}{96}$=-4

giai cho minh bai 15 minh can gap lam trong 10p

Mìn cần lời giải của bài 12 ạ , mình cần gấp

giai cho minh bai 14 cau d,e,f trong 10p ạ minh can gap

mng giúp lại mink 1 câu trắc nghiệm này nhé

Các bạn ơi ghi tên phương anh nha để mình làm avatar

Hoà tan 8,68g hỗn hợp 3 muối BaCl2, KCl và MgCl2 vào nước được 500ml dd A. Cho dd NaOH dư cho vào 100ml dd A , lọc kết tủa, đem nung ở nhiệt độ cao thì còn lại 0,08g chất rắn. Cho 200ml dd A trên vào dd H2SO4 dư thì thu được 2,796g kết tủa trắng. Tính Cm mỗi muối trong dd A

Bài 1: sắp xếp lại các từ và cụm từ đã cho theo đúng thứ tự a) his family / wants to find / for / Mr. Smith / an apartment b) two stores / my school / a hospital / and / in front of / There is Bài 2: Đặt câu dưới từ gạch chân a) It's about 500 meters from my house to the nearest market b) The dentist takes care of people's teeth Bài 3:Viết lại các câu sao cho chúng gần nghĩa nhất với câu in trước của chúng a) Where does your sister live? What................................................ b) The sports car is very fast What..............................................