Answer: B (130)
Explanation:
A trapezoidal Riemann sum can be found by multiplying the width (the change in x) of each sub interval by the average of the y values of the two points at either end of the section and then adding up all of the sun intervals. Therefore, the trapezoidal approximation would equal 0.5(40) + 1.5(50) + 1(35) to get the answer of 130.
Thinking about causation involves the ability to identify, analyze, and evaluate the relationships among many historical events as both causes and effects. Historians often try to distinguish between immediate, proximate, and long term-causes and effects. Some events and conditions may have some correlation without proof of a direct causal relation while others are only coincidental or without a relationship
You can take any information you would like to but none of it will be considered true until it has been supported<span />