What is the length of EF if ABC is similar to DEF A. 22 units
B18 units
C. 32 units
D. 2 units​

The mean of a set of data is -3.82 and its standard deviation is 2.31. find the z score for a value of 3.99.

Type the correct answer in each box, round your answers to the nearest integer 20 25 30 in the figure, the perimeter of hexagon abcdef is approximately w units, and its area is square units

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