The circle below is centered at the point (2, -1) and has a radius of length 3.
What is its equation?
32
O A. (x-2)2 + (y+ 1)2 =
O B. (x + 2)2 + (x-1)2 =
32
O C. (x + 1)2 + (y-2)2 = 9
O D. (x-1)2 + (y + 2)2 = 9

Find the value of tan theta if sin theta = 12/13 and theta is in quadrant 2

The brain volumes (cm cubed) of 50 brains vary from a low of 904 cm cubed to a high of 1488 cm cubed. use the range rule of thumb to estimate the standard deviation s and compare the result to the exact standard deviation of 175.5 cm cubed, assuming the estimate is accurate if it is within 15 cm cubed

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