The loudness, L, measured in (Db), of a sound intensity, I, measured in watts per square meter, is defined as L=10log1/1 0, where l o= 10^-12 and is the least intense sound a human ear can hear. What is the approximate loudness of a rock concert with a sound intensity of 10^-1

hello from mrbilldoesmath!

answer:

a(n) - a(n-1) -3

discussion:

this ones a bit interesting. given a(n) = 5 - 3n consider this:

a(n-1) = 5 - 3(n-1)

          = (5 - 3n) + 3             => but a(n) = 5 - 3n, the first term

          = a(n)   + 3                 => subtract 3 from both sides

a(n-1) -3 = a(n)  

or

a(n) - a(n-1) -3

you,

mrb

step-by-step explanation:

use pothagarean therom

a^2+b^2=c^2 so first ac

acm is a right triangle because c= 90°

and am (the hypotenuse or c) =16+9 =25

but there is not enough info we need another angle or side length

definitely a. the others have almost all data points on one side of the line.

step-by-step explanation: