Hey! i need help with riemann sums! the question will be posted below. i can get everything except for the last one...

Question

anonymous · Answer

attachment

anonymous · Answer

do the same steps u did on the last one.. they look like the same kind of problem... should have the same steps..

anonymous · Answer

yeah i did that and i plugged it into my calculator and it still said i was wrong.

anonymous · Answer

is it multiple choice?

anonymous · Answer

no the picture is how it really is

anonymous · Answer

oh..eww:)

anonymous · Answer

how did u no u were wrong?

anonymous · Answer

yeahhh.. i cant figure out what i am doing wrong.. it says if you got the answer right or if  you got the answer wrong.

anonymous · Answer

oh.. do u go to an online school, or a real school?
cause u could just ask z teacher..

anonymous · Answer

i go to real school, but the homework is online which sucks!!

anonymous · Answer

ooh! tricky! well, u could do the best u can, then ask the teacher what u did wrong on Monday...

anonymous · Answer

?

anonymous · Answer

yeah that is what i have to do haha

anonymous · Answer

What are L and R?