Answer:
(4, 5)
Step-by-step explanation:
i hope this helps :)
Answer:
2.5cm
Step-by-step explanation:
radium is half circumference - by length you mean circumference ?
Answer:
8.

11.

Step-by-step explanation:
Area = 
r = d/2
= 3.14
8.
r = 10/2
r = 5 in
Area = 
Area =

10.
r = 6/2
r = 3 m
Area =
Area =

Hope it helps! (:
Answer:

Step-by-step explanation:
From the question we are told that:
Loudness function 
Sound of a person 
Number of persons talking 
Generally the Relative intensity for 20 people is mathematically given by
Relative intensity for

Relative intensity for

Generally the loudness for 20 people is mathematically given by




Therefore increase in loudness X is given as


Answer:
220 m
Step-by-step explanation:
since it takes him 22 min, and each min he travels 100 m, you just have to multiply 22 by 100
22 x 100 = 220