Help... 1. give the length of the arc cut off by the central angle of 120deg in a circle of diameter 8.6 metre.

2. Find the diameter of circle given the Area of a sector 6480
sqcm and angle its central angle of 150deg.​

Provide an example of a trigonometric function and describe how it is transformed from the standard trigonometric function f(x) = sin x, f(x) = cos x, or f(x) tan x using key features.

Compare these two waves: the blue and orange waves have the same pitch, but the blue wave is louder. the blue and orange waves have the same volume, but the blue wave has a higher pitch. the orange wave has a higher pitch, but the blue wave is louder. the blue wave has a higher pitch, but the orange wave is louder.

The function models the number of accidents