What is the length of diagonal xy?
1) 167 units
2) 145 units
3) 23 units
4) 17 units

Rearrange the formula c^2 = a^2 + b^2 for b

Which is an equation for the nth terms of the sequence 12,15,18,21

Adecibel is a logarithmic unit that can be used to measure the intensity of a sound. the function y = 10logx gives the intensity of a sound in decibels, where x is the ratio of the intensity of the sound to a reference intensity. the reference intensity is generally set at the threshold of hearing. use the graphing utility to graph the decibel function. a whisper has a sound intensity of 30 decibels. use your graph to you complete the following statement. the sound intensity of a whisper is times the reference intensity.