To estimate the area of a circle, Irene divided the circle into 30 congruent sectors. then she combined pairs of sectors. As the shapes resemble rectangles , she treats the shapes as rectangles with the height r and the base equal to the length of the curved side of one sector. what is the area of each shape

Acommunity group sells 2,000 tickets for its raffle. the grand prize is a car. neil and 9 of his friends buy 10 tickets each. when the winning ticket number is announced, it is found to belong to neil's group. given this information, what is the probability that the ticket belongs to neil? a.1/5 b.1/10 c.1/200 d.1/4

Complete the equation of the line through (−10,3) and (−8,−8). use exact numbers.

Suppose that a households monthly water bill (in dollars) is a linear function of the amount of water the household uses (in hundreds of cubic feet, hcf). when graphed, the function gives a line with slope of 1.65. if the monthly cost for 13 hcf is $46.10 what is the monthly cost for 19 hcf?