Ask your own question, for FREE!
Mathematics 65 Online
OpenStudy (anonymous):

"let f(x) = 4-x^2. compute the Riemann sum of f over the Interval [-1, 2] using 4 Subintervals of equal length. choose the representative points to be the left endpoints of the subintervals."

OpenStudy (anonymous):

The question would be easier if they had asked for 3 subintervals. But if you are using 4 subintervals between -1 and 2, then the width of each one is going to be 3/4. You will be adding 4 rectangles. The width of each rectangle is 3/4 or .75. The height of the left subintervals are f(-1), f(-.25), f(.5) and f(1.25). f(-1) = 4 - (-1)^2. So f(-1) = 3. Calculate the others then add the areas of the four rectangles.

Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!
Latest Questions
Arianna676: should i block everybody on my list?
7 minutes ago 7 Replies 0 Medals
Arianna676: i am not taking for break?
51 minutes ago 4 Replies 0 Medals
uknownprttyfacekayla: I drew this not sure what i was aiming for but i just drew what my heart guided m
3 minutes ago 6 Replies 3 Medals
alphaXtiger: what is the meaning of math meaning who made it.
1 hour ago 3 Replies 3 Medals
axie: Poem I think
1 hour ago 13 Replies 3 Medals
Fz150: what is the definition of art?
2 hours ago 2 Replies 2 Medals
Can't find your answer? Make a FREE account and ask your own questions, OR help others and earn volunteer hours!

Join our real-time social learning platform and learn together with your friends!