Paulo uses an instrument called a densitometer to check that he has the correct ink colour. for this print job the acceptable range for the reading on the densitometer is 1.8 ± 10%. what is the acceptable range for the densitometer reading?

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.

Use sigma notation to represent the following series for 9 terms.

If the perimeter of the square equals the perimeter of the regular pentagon. each side of a pentagon is 16cm long. how long is each side of the square?