TT

S₁=6cm² Có: V₁=S₁.h₁=6.20=120cm³

S₂=12cm² V₂=S₂.h₂=12.60=720cm³

h₁=20cm h_{mỗi bình}=\(\dfrac{V_1+V_2}{S_1+S_2}\)=\(\dfrac{120+720}{6+12}\)

h₂=60cm =46,67 cm

h_{mỗi bình}=? cm => h_{mỗi bình}= 46,67 cm

Đồ thị hàm số y = 9 − x 2 x 2 − 2 x − 8  có bao nhiêu đường tiệm cận?

A. 1

B. 0

C. 3

D. 2

Mark the letter A, B, C or D to indicate the underlined part that needs correction in each of the following questions.

Tim called yesterday and said he needed the report right now.

A. called

B. said

C. needed

D. now

Mark the letter A, B, C, or D to indicate the word that differs from the other three in the position of the primary stress in each of the following questions.

A. couple

B. promise

C. import

D. wedding