Step-by-step explanation:
side = 8 m
the area of the rectangle = length × width = 16 × 4 = 64 m²
the area of the square = s² ( where s is the length of a side ), hence
s² = 64 ( since areas are equal )
take the square root of both sides
s = √64 = 8 m
Answer:
I think it's B 121.5
Step-by-step explanation:
I don't feel like explaining how I got that
Answer:
3, 1, - 1, - 3, - 5
Step-by-step explanation:
using the recursive formula and f(1) = 3 , then
f(2) = f(1) - 2 = 3 - 2 = 1
f(3) = f(2) - 2 = 1 - 2 = - 1
f(4) = f(3) - 2 = - 1 - 2 = - 3
f(5) = f(4) - 2 = - 3 - 2 = - 5
first 5 terms are 3, 1, - 1, - 3, - 5
Answer:
Step-by-step explanation:
The intensity β of a sound wave in decibels is given by the formula
and I₀ = the reference intensity (10⁻¹² W/m²)
Data:
I = 10⁻⁴ W·in⁻²
Calculations:
1. Convert watts per square inch to watts per square metre
2. Convert the intensity to decibels.
