Answer:
Ф = s/r
Step-by-step explanation:
The arc length formula is s = rФ, where r is the radius and Ф is the central angle. We want to find a formula for the angle Ф in terms of s and r. To do this, start with s = rФ and divide both sides by r:
s rФ
-- = ----
r r
Then Ф = s/r
3r + (9 + 2r + 1)
this can be simplified :
3r + (9 + 2r + 1) = 3r + 2r + 9 + 1 = 5r + 10
1. 42
2. 6
3. 18
4. 0
5. - 2
Use BIDMAS
12
3 + x>-9 x=12 15>-9
Answer: Maggie is 7 years old.
7 . 2 = 14
14-3=11
11+7=18
Hope this helps!
