Asta 2023 class in the summer of 2010 was asked to complete a survey. one of the questions asked the students to report the number of hours that they expected to spend studying and working on "out of class" assignments for this course per week. below is a histogram of that data. what is the best description of the spread of the data?

The question is incomplete. The complete question can be found here: https://www.coursehero.com/file/p6md8qo/Which-of-the-following-is-true-regarding-the-numbers-80-and-84-A-Both-84-and-80/

The amount of time spent studying by those surveyed ranging from 0 to 25 hours.

Step-by-step explanation:

The histogram is typically used to show the variation between variables. It is a graphical representation of information with the use of bars having different heights. In the histogram given in the question, it can be deduced that the time elapsed ranging from 0 to 25 hours while studying is surveyed. The result of the survey is represented in a graphical form.

a4 - 3a2 - 1

step-by-step explanation:

step   1   :

equation at the end of step   1   :

  ((a4) -   3a2) -   1

step   2   :

trying to factor by splitting the middle term

2.1     factoring   a4-3a2-1  

the first term is,   a4   its coefficient is   1 .

the middle term is,   -3a2   its coefficient is   -3 .

the last term, "the constant", is   -1