Answer:
They are 8, 10 and 12 cm long.
Step-by-step explanation:
Let the length of the shortest piece be x cm. Then:
x + x + 2 + x + 4 = 30
3x + 6 = 30
3x = 24
x = 8.
3 pieces such that each piece is 2 cm longer then the next...
x , x + 2, x + 4
3x = 30 - 6
x = 24/3
x = 8
x + 2 = 8 + 2 = 10
x + 4 = 8 + 4 = 12
check...
8 + 10 + 12 = 30
18 + 12 = 30
30 = 30 (correct)...it checks out
the ribbon lengths are : 8 cm, 10 cm, and 12 cm
Answer:1040
x=-1
The axis of symmetry is along the vertex
The vertex is at (-1,-2)
The x coordinate is -1
x = -
Radical roots occur in pairs, that is
x = is a root then so is x = -
1 1/2
1 1/2 + 3 1/2 = 5
6 1/2 - 5 =1 1/2