Decrease £13.20 by 15%

With an explanation (working out) pl

Plzzz i beg u so much asaaaap ! what is the slope of this line? enter your answer in the box.

Solve the equation by completing the square. x^2+2x=17

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.