Answer:
Answer:1134
Step-by-step explanation: first you do (21×7×2)+(12×10×7) then once you do that you'll get 1134 and that's your answer.
Answer:
Step-by-step explanation:
w (width) = 32/8
w = 4
p (perimeter) = 2w + 2l
p = (2 x 4) + (2 x 8)
p = 8 + 16
p = 24
Answer:
PS=5.4
Step-by-step explanation:
The centroid divides each median in the ratio 2:1
If U is the centroid, then

We use ratio to obtain;

Cross multiply;

Expand;

Group similar terms;


x=1
PS=PU+US
PS=3.6+1+0.8
PS=3.6+1+0.8
PS=5.4
9 books will fit on the shelf