How many three-letter "words" can be made from 5 different letters "FGHIJ" if...

a) repetition of letters is allowed?

b) repetition of letters is not allowed?

There are two questions being asked, A and B

Aline passes through 3,7 and 6,9 what equation represents the line

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.

The equation of line wx is y=2x-5. write an equation of a line perpendicular to line wx in slopeintercept form the contains points (-1,-2)