Suppose that 2% of a population carries antibodies to a virus. For a research project, you need 30 people with antibodies to the virus. How many people should you test so that the expected number of people with
the antibodies is 30?

What constants do you need to add to each of the following quadratic equations to complete the square? 2x2 - 3x = 0 x2 - 8x = 0 2x2 - 11x = 18

Which statement holds true for absolute value functions? •the absolute value determines the direction in which theb.the coefficient determines the line along which the graph,the distance between the left and the right arm is based od.the vertex coordinates and the absolute value determine 111

Find the sum of 4x^{2} -4+6 and -7^{2} +3x+1