Translate the given formula to an English phrase using the word "varies".P = nb, where P is the perimeter of a regular polygon with n sides each of length b.
What will be an ideal response?
The perimeter of a regular polygon varies directly with the length of each side and number of sides.
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Graph the function.Sketch two cycles of the acoustical intensity I of the sound wave for which 
, given that t is in seconds, 
and 
Label the point on the horizontal axis which represents the end of the second cycle.
A. 
B. 
C. 
D. 
The equation has a solution r in the interval indicated. Approximate this solution correct to two decimal places.x3 - 8x - 3 = 0; -3 ? r ? -2
Fill in the blank(s) with the appropriate word(s).
Solve the equation.0.11(x + 40) + 0.21(x + 30) = -11.7. (Round to the nearest whole number, if necessary.)
A. {-70} B. {70} C. {-10} D. {10}
Plot the given point in a rectangular coordinate system.(0, -5)
A. 
B. 
C. 
D. 