A local book printer has decided to model the number of Algebra textbooks they have in stock using a linear model. Without taking into account the books they are selling, they model the amount of books in stock, B, using the equation : B = 125d + 820
where d is the number of days they have been printing the book since August 1st.

Question: Explain the physical meaning of the 125 in the given model.

answer: the anser is 3

step-by-step explanation:

c- 2o is equal to 9

idk

step-by-step explanation:

the image is given below

since the options are not given so we draw it from the equation

the given equation is

y = (x-1) (x+4)

y = y² + 3x - 4

the above equation is a quadratic equation which will have two roots. if we draw the graph for it, it will look like this

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.