Answer:
arithmetic sequence
Step-by-step explanation:
The terms have a common difference between consecutive terms , that is
- 2 - (- 5) = - 2 + 5 = 3
1 - (- 2) = 1 + 2 = 3
4 - 1 = 3
Since there is a common difference d = 3
Then the sequence is arithmetic
3:5 = 30:50 because it is ratio 3 x 10 = 30 5 x 10 = 50
16
8/ 2*(2+2) = 4*(2+2) = 4*4 = 16
565.2 in²
2pi × r × (r + h)
2 × 3.14 × 5 × (5 + 13)
31.4 × 18
565.2
