7 Sound intensity model: L = 10 log L = loudness, in decibels (dB); I = sound intensity, in watts/m2; 10 = 10-12 watts/m2 The loudness of a jack hammer is 96 dB. Its sound intensity is about... The loudness of a compactor is 94 dB. Its sound intensity is about...

with solution please thank you

ca = ec

cpctc makes it so that corresponding parts of the triangle you proved to be equal are equal, the other options aren't part of the part of the triangles you proved to be equal.

35/2 is it i think maybe

secant-secant formula:

(whole secant) x (external part) =           (whole secant) x (external part)

(8+y-2) *8=                                           (y+4+6) *6

(y+6)*8 = (y+10) *6

distribute

8y+48 = 6y +60

subtract 6y from each side

2y +48 = 60

subtract 48 from each side

2y = 12

divide by 2

y = 6

sv =     (y+4+6)

sv   = 6+4+6

sv = 16