10x+2y+9z=-9 5x-4y+9z=0 3x-4y+10z=-5

The first hexagon is dilated to form the second hexagon select the answers from the drop box menus to correctly complete the statement

Given the expression (7 ? 4i) ? (2 + 6i), perform the indicated operation and write the answer in the form a + bi.

Rachel is studying the population of a particular bird species in a national park. she observes every 10th bird of that species that she can find in the park. her conclusion is that the birds living in the park who belong to that species generally feed on insects. rachel's sample is . based on the sample she picked, rachel's generalization is