Help me find the value of X, question in picture. I’ll give u brainliest

Identify an equation in point slope form for the line perpendicular to y=3x+5 that passes through (4,-1)

If sec theta = 5/3 and the terminal point determined by theta is in quadrant 4, then

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.