Which of the following areas is most likely to experience a high death toll from a tsunami?

a. an area with low arithmetical density on the coast of an ocean
b. a physiologically dense area in the foothills of a mountain range
c. an area with low agricultural density on an inland plain near a fault line
d. an arithmetically dense area on a coastal plain near a fault line
e. an agriculturally dense farming area in a river valley

The answer is    (d) 7/2======we have    we also  have an integral      notice how function f splits up at x = 0. there's a left piece and a right pieceso we'll need to do the same thing with our integral: split it at x = 0we use a property of integrals that allows us to split up and sum:     notice that for the piecewise function f, the function has the equationf(x) = x when x  ≤ 0. so for the integral  , f(x) = x so it changes into      for the piecewise function f, the function has the equationf(x) = x+1  when x  > 0. for the integral  , we have    therefore, back to our splitted integral:    

Ok i’m not good at this but imma try : )