Which of the following is an example of combination?

Form a passcode with 4 digits

Students line up in a queue to assembly

Choose 4 students in a class committee

Choose the chairperson, secretary and treasurer in a club

Rewrite the following quadratic functions in intercept or factored form. show your work. y = x^2 + 7x + 10

Aprobability experiment is conducted in which the sample space of the experiment is s={7,8,9,10,11,12,13,14,15,16,17,18}, event f={7,8,9,10,11,12}, and event g={11,12,13,14}. assume that each outcome is equally likely. list the outcomes in f or g. find p(f or g) by counting the number of outcomes in f or g. determine p(f or g) using the general addition rule.

The room above is shaped like a rectangle and has a perimeter of 34 feet. if the room is 11 feet long, how wide is it?