2016+2016+...+2016+2016x99

Write the correct term at the end of each sentence ( noun, pronoun, verb, adjective, adverb, preposition, conjunction, article )

Example: Learn by heart all the new words and texts. ( noun )

1. Their children speak English very well. __adjective____

2. She learned English at school and university. ___noun_____

3. They sent our library ten new English dictionaries. __verb_____

4. Like anything, learning English requires practice. ___verb_____

5. If you are not motivated to learn English you will become frustrated and give up. ____conjunction_____

a) ta có  T = 3 (1+3+3^2) + ...+ 3^7 (1+3+3^2) = 13 * 3 +...+ 13 * 3^7 = 13( 3+...+3^7) chia hết cho13

b) ta có T = 3(1+3) + ...+ 3^8 (1+3) = 4 *3 +...+ 4* 3^8 = 4( 3+ ...+3^8) chia hết cho 4

10³⁵ = 1000.....000 (35 chữ số 0)

x * 7 = 52,5 + 33,11

x * 7 = 85.61

    x  = 85,61 / 7

    x  = 12,23

Đáp án C

160

k nha

Ta có:

x - y = x.y => x = x.y + y = y.(x + 1)

=> x : y = x + 1 = x - y 

=> y = -1

=> x = -1.(x + 1) = -x - 1

=> x + x = -1 = 2x

=> x = -1/2

Vậy x = -1/2; y = -1

K BIẾT

10+10=20

tk nhé