Triangle abc has vertices a(5, 3) , b(3, 7) , and c(1, 4) . triangle abc is dilated, and the vertices of the image are a′(7.5, 4.5) , b′(4.5, 10.5) , and c' (1.5,6). the center of dilation is the origin. a. 1/2 b.2/3 c3/2 d2

Use the sample data and confidence level given below to complete parts a through d.a research institute poll asked respondents if they felt vulnerable to identity theft. in the poll, n=1090 and x=549 who said yes. use a 99% confidecne level.a. find the best point of estimate of the population of portion p.b. identify the value of the margin of error e.e= round to four decimal places as needed.c. construct the confidence interval._ < p < _ round to three decimal places.d. write a statement that correctly interprets the confidence interval.