Answer:
Focus of a Parabola. A parabola is set of all points in a plane which are an equal distance away from a given point and given line. The point is called the focus of the parabola and the line is called the directrix. The focus lies on the axis of symmetry of the parabola.
Step-by-step explanation:
Answer: the return trip took approximately 4 hours.
Step-by-step explanation:
Erica and her friends rode a train to get to their vacation destination. The time that it took them to get to their vacation destination is 5 hours.
The return trip was only 5/6 of the time of the original trip. Therefore, the time that they spent on the return trip would be
5/6 × 5 = 25/6 = 4.16667
Rounding up to the nearest whole number, it becomes 4 hours
Answer:
1.697
Step-by-step explanation: