(0,7) part 1: use the equation r^2=x^2+y^2 to find the radis of this point

part 2: use the fact that tan theta= (y/x), x=0 to find the angle for this point

part 3: combine your answers to write the polar coordinates of this point​

5   1/4   miles per hour

step-by-step explanation:

15   3/4 / 3 = 5   1/4

3/20

step-by-step explanation:

well, there are 20 outcomes, and 3 of them you want. so, 3/20

answer: the proof is mentioned below.

step-by-step explanation:

since, given:   lines bc = ef

prove:   lines ac > ef

          statements                                           reason

1. bc=ef                                           1. given

2. ac= ab+bc                                 2. because b is the point between the  

                                                            line segment ac

3.   ac > bc                                       3. because if a line segment is equal to

                                                          the sum of two line segments then it is

                                                          always greater then each of these

                                                          individual line segments

4. ac > ef                                         4. by equality property.