that seems right to me, I think. maybe something like that to double check
Answer:
- 9
Step-by-step explanation:
Substitute n = 2 into the recursive formula, that is
A(2) = A(1) + 4 = - 13 + 4 = - 9
Answer:
multiply by three
Step-by-step explanation:
Answer:
14 squares
Step-by-step explanation:
1. We know if the mosaic is a square shape, all sides are the same length and consist of the same amount of squares
2. Area is L×W, so in this case A×A=196
3. We can test this by replacing A with 14 and seeing if the answer is correct.
4. 14×14=196 is true
This can also be done by finding the square root of 196.
Answer:
surface area: 7241.25
Step-by-step explanation:
using this formula for surface area of cyclinder: 2πrh+2π
diameter = 2r --> 39.2 = 2r
so r= 19.6
