An instructor who taught two sections of engineering statistics last term, the first with 20 students and the second with 40, decided to assign a term project. after all projects had been turned in, the instructor randomly ordered them before grading. consider the first 15 graded projects. (a) what is the probability that exactly 10 of these are from the second section? (round your answer to four decimal places.)

Aline on the wall and a line on the floor are skew. always, sometimes, or never?

The volume of a cube is 8 in to the 3rd power. how long is each side?

Agroup of students want to create a garden. they do not know the exact measurements but they propose using a variable to represent the length and width of the garden. the length of the garden is 10 feet longer than double the width. use a single variable to write algebraic expressions for both the length and width of the garden. write an algebraic expression for the area of the garden. use mathematical terms to describe this expression.