Answer:
see explanation
Step-by-step explanation:
The length of the arc is calculated as
AB = circumference of circle × fraction of circle
(11)
AB = 2πr × 
= 2π × 7 × 
= 14π × 
= 
π in
(12)
AB = 2πr × 
( r = 20 ÷ 2 = 10 )
= 2π × 10 × 
= 20π ×
= 
π
= 
π cm
<span>Point A with coordinates (x,y) rotated 180 degrees around O gives point A' with coordinates (-x,-y).
Hope this helps :D
</span>
Answer:
Numbers
Step-by-step explanation:
Quantity is numbers, and quality is how well it is. An easy way to remember: quantity has an n for numbers, and quality doesn't.
Answer:
7
Step-by-step explanation:
In similar triangles, corresponding elements are proportional. Then we get,
(2x + 1)/(x-1) = 10/4
4(2x +1) = 10(x-1)
8x + 4 = 10x - 10
8x = 10x - 14
2x = 14
x = 7
Hope it helps and if it does, please mark me brainliest...
Answer:
im pretty sure 36
Step-by-step explanation:
if you do 120 devided by 30 you get 4, then u just multipy by 9 which is 36.
