Answer:
the following points would make a trapezoid
1/40,000 = h/10
40,000h = 10
h = 10/40,000
h = 1/4,000
Answer:
The derivative of the function is:

Step-by-step explanation:
If we have a function in the following format:

This function has the following derivative

In this problem, we have that:

So 
The derivative is



Answer:
a) The study suggests a negative correlation because the study shows that as time spent on social networking websites Increases, grade point average tends to decrease.
b) While it is possible that there is a cause and effect relationship, it is not necessarily the case.
Step-by-step explanation:
Since the study submitted that, students who rarely never used social networking websites had higher grade point averages than students who use social networking websites. It implies a negative relationship. Thus, the option given above is the correct answer.
Similarly, the study might imply some cause and effect relationship but it is not necessarily to be the case. <em>That is, low grade point could result into more time with social networking website. </em><em>This is not necessary to be TRUE!</em>