Answer:
- don't echo sound and don't create a reverb
also, these walls are designed to maintain a uniform pitch and amplitude in every corner of room
Answer:
B
Explanation:
It is because burning fossil fuels release sulfur dioxide which causes acid rain.
Answer:
V ≈ 4577.204 cm^3
Explanation:
Use the volume formula V=4/3πr^3 to find the volume. Since you need the radius but are given the diameter, divide it by 2 to get half.
21.4/2 = 10.7
Now plug that into the formula and solve:
V=4/3πr^3
V=4/3π(10.7)^3
V= 4/3π(1,092.7272)
V= 4/3 * 3432.903
V= 4 * 3432.903/3
V = 13731.614/ 3
V ≈ 4577.204 cm^3 or whatever unit is stated.
C. Japan only uses renewable energy sources.
Answer: Doubling in size over equal time.
Explanation: Population exponential growth can be said to be an increase in the number by multiplying together a number of equal factors, where the exponent specifies the number of factors to multiply.
For example, in 7² the factors are all 7, the power is 2 and the exponentiation gives 49.
This example is indicative of doubling in size.