Solve for x and y
x +2y= -6
-5x+4y=2

Asphere has a diameter of 10 in. what is the volume of the sphere?

What is the solution of log2  (3x  -  7)  =  3? 4 5

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.