Looking for help with two calculus questions. Step-by-step.

Question

destinyyyy · Answer

attachment

fortytherapper · Answer

I may have an idea, let me work it out first to see if I get $860.83

destinyyyy · Answer

Okay.

fortytherapper · Answer

Ohhh, ok I got it. I kept getting 86,803
But it's in cents xD

So yeah, it's a left reimann sum basically. First we have to find:

$$\Delta x = \frac{ b-a }{ n}$$

destinyyyy · Answer

Okay. which turns into 360

destinyyyy · Answer

Sorry I was doing something else.

fortytherapper · Answer

It's cool. I got class in about 10 minutes, so ill see if I can help complete your first question atleast.

Alright so that's 360.

I converted it into a fraction (I used a graphing calculator to type in f(x) to get values at each 360 mark)

$$-\frac{ x^2 }{ 100000 }-\frac{ x }{ 50}+70$$

The decimal works too, but I couldn't get it to work.

But first we have to find x0 through x5, 

x0 = a
x5 = b

x1, x2, x3, and x4: You just count up by 360, since 360 was delta X

destinyyyy · Answer

Um what??

fortytherapper · Answer

Sorry though, I have to head out... but after find x0 through x5 you would have to find the first 5 values because it's a left as opposed to a right

destinyyyy · Answer

Sorry but I dont understand anything that you've said..

destinyyyy · Answer

My example sets up a table.

fortytherapper · Answer

Sorry I was of minimal help, I can help you later (w/ the table also)

destinyyyy · Answer

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