Answer:
10.26 in²
Step-by-step explanation:
The area (A) of the sector is
A = area of circle × fraction of circle
= πr² × 
= π × 2.8² ×
≈ 10.26 in²
Answer:
-5
Step-by-step explanation:
Answer:
height of the tree is 30 feet
Step-by-step explanation:
a tree casts a shadow 42 feet long . at the same time, a person 5 feet tall casts a shadow 7 feet long.
shadow of a 5 feet tall person is 7 feet long
Let x be the height of the tree
shadow of a 42 feet tree is x feet long
Make a proportion

cross multiply


divide by 7 on both sides
x=30
So height of the tree is 30 feet
Answer:
y/3
Step-by-step explanation:
x + 3/3 = y + 2/2
x + 1 = y + 1
x = y + 1 - 1
x = y + 0
x = y
so; x/3 = y/3
C. 20% the answer is 20 percent just divide 960 by 4800