Lưu Huỳnh có nguyên tử khối là 32đvC Trong nguyên tử Lưu Huỳnh,số hạt mạng điện gấp đôi số hạt không mang điện Hãy tính số proton,nơtron elctron trong nguyên tử

Tìm tất cả giá trị nguyên x để 2/x+1 có giá trị nguyên

Tìm các giá trị nguyên của x để x+3/-x có giá trị nguyên

Tìm và sửa lỗi sai Làm hộ mk nha. Cảm ơn

So sánh: a, -√5 và -2 b, $\sqrt{5√3}$ và $\sqrt{3√5}$ Nhanh hộ em với ạ

$\frac{6-√6}{√6-1 $\frac{6-6√3}{1-√3}$+ $\frac{3√3+3}{√3+1}$ }$+ $\frac{6+√6}{√6}$

cho a.b.c=2. Rút gọn biểu thức: A=a/ab+a+2 + b/bc+b+1 + 2c/ac+2+2

a=b=c=d=e thì tại sao a=e b=e c=e d=e ạ giải thích giúp mình với xong mình vote 5 sao cảm ơn nhiều ạ giúp mình với

101. I (think)……… your father’s health (improve)………so much since I (see)……him last. 102. Don’t worry. We (finish)……… ……..the report by 11. 103. Listen to this ! I think this news ( surprise)…………you. 104. When I first (come)…….to this village, it was quiet place. But since then the population( double)………and a lot of leisure facilities (build)………. 105. Hurry up or you (be)……. ……….late for class. 106. The Ajax shoe company (employ)……. 25 new men next month. 107. Don’t talk to me . I (try)………… to learn this page by heart. 108. A:Call a doctor quickly! The old man (die)……….. B: The doctor is on the way. He (just leave)………..his house. 109. Don’t be upset.I ( understand)………….perfectly. 110. We must take umbrella. It (rain)………………. 111. Wood usually (float)…………. on the water. 112. Look out! The ceiling (fall)………………in. 113. It’s too late. Nothing (matter)………….. now. 114. I (listen) ……… to the radio when you (ring)…………..the bell first time , and that’s why I (not hear)………….you. 115. At school, We (learn)……..two foreign languages. 116. As a boy, I (always read)………….I always (have)………..my nose in a book. 117. John (learn)……….English for seven years, and at last he (master)………the irregular verbs. 118. It (rain)……… but it (stop)………….. now. 119. When I (open)……..the door this morning I (see)…… a man on his knees. 120. When I (ask)………him what he (do)………, he (say)……. that he (drop)………a 50p piece outside the door and (look)…………for it. 121. By the time I (recover)………. from the shock he (disappear)………round the corner. 122. I am going to write John as soon as I (have)……….spare moment. 123. The thief was arrested as he (leave)………. the bank. 124. We (send)……… the money as soon as the goods are delivered. 125. Before we (go)……very far we found that we (lose)……………. our way. 126. By the end of this year I (be)…………..here for fifteen years. 127. After I (hear)………. the news yesterday evening I (hurry)………… to see him. 128. I (not give)……………another cake till you (finish)……….your milk. 129. I’m busy at the moment. I (decorate)…………….the living room. 130. I see that Tom (write)……………..his composition. GIÚP mình với bỏ câu 102 và 104 cà 126 nhé

các bạn cho mình hỏi đáp án bài này tìm x :2(5x+2)-3(4x-5)=4(3x-4)+11 nhanh nhanh nhé cảm ơn nhiều