Type the correct answer in the box. Spell ALL WORDS correctly. In ABC, a=7, b=5, c=8. What is the measure of BAC?

The measure of angle BAC=__

Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

What is the area of mnp? 40 m2 60 m2 68 m2 127.5 m2

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.