Use the circle shown below to answer questions a to d. (a)Calculate the area of the circle, center O. 1mk (b)Calculate the area of the minor sector AOBC 2mks (c)Calculate the area of the triangle AOB. 2 mks (d)Determine the area of the segment ABC. 2mks Take pi : 22/7 * (A)

(B)

(C)

(D)
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In two or more complete sentences, determine the appropriate model for the given data and explain how you made your decision. (1,-1), (2,0.5), (5,1.5), (8,2)

The table shows the balance of a money market account over time. write a function that represents the balance y(in dollars) after t years.

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