Answer:
if each student has 1 piece then it will feed 96 students
Step-by-step explanation:
12*8=96
11.5/100 (320)
184/5 (decimal:36.8)
hope this helps!
9514 1404 393
Answer:
shaded/square = (50π cm²)/(400 cm²) = π/8
Step-by-step explanation:
The quarter circle has area ...
A = (1/4)(πr²) = π/4(20 cm)² = 100π cm²
The half-circle has area ...
A = (1/2)(πr²) = π/2(10 cm)² = 50π cm²
Then the area of the shaded portion is ...
shaded = 100π cm² -50π cm² = 50π cm²
__
The area of the square is ...
A = s² = (20 cm)² = 400 cm²
Then the ratio of interest is ...
shaded/square = (50π cm²)/(400 cm²) = π/8
P + S = 180
105 + x+65=180
x=10
Show that 1k+2k+...+nk is O(nk+1). So according to the definition of big-O notation we have: 1k+2k.
