Answer:
2110 cm³
Step-by-step explanation:
Volume = V1 + V2,
Where V1 is the volume of the pyramid, and V2 is the volume of half cylinder
V1 = ⅓×(Base area)×height
V1 = ⅓×(12.6×21.5)×8.5 = 767.55
V2 = ½×(pi×r²×h)
r = 12.6÷2 = 6.3
V2 = ½×(pi×6.3²×21.5) = 1340.415
Volume = V1 + V2
= 767.55 + 1340.415
= 2107.965
= 2110 cm³ (3 sf)
Answer:
no
Step-by-step explanation:
The number of boys is:
30 - 12 = 18.
18 boys* (1/3)= 6 boys
There are 6 boys who study history.
6 students/ 30 students= 1/5.
1/5 of the students are boys who study history~
Answer:
I dont know
Step-by-step explanation:
SORRRYYY
Answer: u = -39
Step-by-Step Explanation:
=> u + 47 = 8
First we have to shift 47 to the RHS. When we do that +47 becomes negative on the RHS.
=> u = 8 - 47
Now subtract 47 from 8 which will result in -39 because 47 > 8.
=> u = -39
