Mark the letter A, B, C, or D on your answer sheet to indicate the sentence that is closest in meaning to each of the following questions.

Large cars use more gas than smaller ones.

A. If you own a small car, it uses more gas

B. The smaller the car, the more gas it uses

C. The larger the car, the more gas it uses

D. Large cars don’t use as much gas as smaller ones

Choose the underlined part among A, B, C or D that needs correcting.

Did your uncle took you to watch the football match last week?

A. Did 

B. took 

C. to watch 

D. football match

Tìm số tự nhiên nhỏ nhất, biết rằng khi chia số này cho 37 dư 1 và khi chia cho 39 dư 14.

1-2x<=7x-11/5

<=>-2x-7x<=-1-11/5

<=>-9x<=-16/5

<=> x >=16/45

chúc bạn học tốt ^_^

a) ta có: AB=AM+AB

AC=AN+NC

mà AB=AC(gt);MB=NC(gt)

suy ra AM=AN

b) tg AMN cân tại A suy ra góc M=45độ(1)

tg ABC cân tại A suy ra góc B =45độ(2)

từ (1) và(2) suy ra MN//BC

Vậy tg AMN cân