Which quadrant contains - 11n/18 and what is the reference angle?

option B:  III   ,  7pi/18

Step-by-step explanation:

Given angle is

Given angle is negative , so we add 2pi

Take common denominator 18

pi is 180 degree. Lets find degree for this radians

25 * 180 / 18 = 250 degree

250 degree lies in third quadrant (III)

Now we find reference angle

to find the reference angle for the angle in third quadrant we subtract 180

250 - 180 = 70 degree

now convert it into radians

26?

step-by-step explanation:

first, we define the variables:

x: number of years after 1950

f (x): amount of vinyl sold.

then, with the variables defined, we have:

68594 vinyl records were sold in 1958 > f (8) = 68594

91299 vinyl records were sold in 1961 > f (11) = 91299

38720 vinyl records were sold in 1952 > f (2) = 38720

161743 vinyl records were sold in 1967 > f (17) = 161743

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step-by-step explanation: