HELP ASAPP !! Select the correct answer. Sound waves can be ranked by their intensity, 1 given in this formula, where ris the distance from the source of a sound with a power output of
P.
P = 47172
Which equation correctly rewrites the formula to solve for R
OA. I = m2
OB. I = PAT?
Ос. I = 4Par2
OD.
I =***
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Give the equations of two different lines that are perpendicular to the line 3x + 4y = 7.

What is the equation of this graphed line? enter your answer in slope-intercept form in the box.

In one day there are too high tides into low tides and equally spaced intervals the high tide is observed to be 6 feet above the average sea level after six hours passed a low tide occurs at 6 feet below the average sea level in this task you will model this occurrence using a trigonometric function by using x as a measurement of time assume the first high tide occurs at x=0. a. what are the independent and dependent variables? b. determine these key features of the function that models the tide: 1.amplitude 2.period 3.frequency 4.midline 5.vertical shift 6.phase shift c. create a trigonometric function that models the ocean tide for a period of 12 hours. d.what is the height of the tide after 93 hours?