What's the square root of 5

2f(x)= x+3 if 4 < x < 8 2x if x 28 2

Identify the number as a rational or irrational.explai. 291.87

The intensity, or loudness, of a sound can be measured in decibels (db), according to the equation 0b is the intensity of a given sound and lo is the threshold of hearing intensity. what is the intensity, in decibels, [l(db)], when 1 - 10"(%)? use a calculator. round to the nearest whole number a. 15. b. 32 c. 320 d. 737