Devaughn is
14
years younger than sydney. the sum of their ages is
58
. what is sydney's age?

Asoccer ball manufacturer wants to estimate the mean circumference of soccer balls within 0.1 in

The decibel level of sound is 50 db greater on a busy street than in a quiet room where the intensity of sound is watt/m2. the level of sound in the quiet room is db, and the intensity of sound in the busy street is watt/m2. use the formula , where is the sound level in decibels, i is the intensity of sound, and is the smallest sound intensity that can be heard by the human ear (roughly equal to watts/m2).

Find the maximum value of p= 4x + 5y subject to the following constraints :