Answer:
20?
Step-by-step explanation:
Answer:
I think it could be a or d but I don’t know sorry
Step-by-step explanation:
Here, we have: A(r) = 4πr²
We need to calculate it for r = 6,
A(6) = 4π(6)²
A(6) = 4π(36)
A(6) = 144π
In short, Your Answer would be Option D
Hope this helps!
Answer:
5. Should be B
6. Should be A
I am not totally sure but please i havent learned this in a long time
Answer:
51
Step-by-step explanation:
Given parameters:
Number of heads = 30 heads
Number of legs = 84 legs
Unknown:
Number of chickens and pigs = ?
Solution:
Since a chicken has one head, the number of chicken is the same as the number of heads;
Number of chicken = 30
A pig has 4 legs,
Number of pigs = = 21pigs
Total number of pigs and chickens = 30chickens + 21 pigs = 51