Solve for x. 6x + 9 + 4x + 2 = 21

If f(x)=x^3 and g(x)=2x+7 when g(x)=-5

Which graph represents the parent function of y=(x+2)(x-2)

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.