In a geometry class, the students were asked to prove the theory below by contradiction. theorem: a triangle has at the most one obtuse angle.
heather begins the proof with an assumption. which statement will she most likely use as an assumption.
1. let two angles of a triangle be obtuse.
2. let each angle of a triangle be acute.
3. let only one angle of a triangle be obtuse.
4. let two angles of a triangle be right.

Joe owns a fast-food restaurant and wants to know the average time it takes for customers to receive their orders. his restaurant serves about 500 customers a day. he timed 5 orders, and the order times he collected, given in minutes, are shown below. can the approximate order fulfillment time for all of the restaurant's customers be calculated from the given data? if so, calculate it. non-integer answers should be rounded to the nearest tenth. if no assumption can be made, type "0" in the box. the approximate order fulfillment time for all of the restaurant's customers is minutes.