To make a given sound seem twice as loud, how should a musician change the intensity of the sound? A. Double the intensity
B. Halve the intensity
C. Quadruple the intensity
D. Quarter the intensity
E. Increase the intensity by factor

C. Quadruple the intensity

Explanation:

The intensity of the sound is proportional to square of amplitude of the sound.

I ∝ A²

When the given sound is twice loud as the initial value, then the new amplitude is twice the former.

A₂ = 2A₁

Thus, to make a given sound seem twice as loud, the musician should Quadruple the intensity

i think it because equal matrices have equal dimensions, only square matrices can be symmetric. for all indices and . every square diagonal matrix is symmetric, since all off-diagonal elements are zero. in linear algebra, a real symmetric matrix represents a self-adjoint operator over a real inner product space.