To find it directly
A = 2 pi r h
A is proportional to rh
factor 2
A is multiplied by 2 * 2 = 4
factor 3
3 * 3 =9
factor 5
5 * 5 = 25
factor 10
10 * 10 = 100
(b) the increase in A by factor x is x^2
c(20)^2 = 400
Answer:
............
Step-by-step explanation:
Ratio of dog bark is 4:5
Multiply that by 20 each side
Ratio is now 80:100
So 80%
If they walk past 45 time you just have to multiply the ratio 4:5 by 9
36:45
So the dog would bark 36 times
Answer:A = b x h
Step-by-step explanation:
I can't see the problem but i can give help u have to follow the formuls
Answer:
Because
Step-by-step explanation:
4 4/10 = 4.4 and 32/10 = 3.2
4.4 is bigger than 3.2 so that's why 4 4/10 is bigger.
