Question

Oil is delivered to a refinery between the hours of midnight (t = 0) and 5 a.m. (t = 5). Selected values of the rate of delivery are shown in the table below, with t measured in hours past midnight, and R(t) measured in gallons per hour. Use 4 trapezoids to estimate the total amount of oil to the nearest gallon that is delivered between midnight and 5 a.m.

Answer 1

@terenzreignz @jim_thompson5910 @zepdrix This is fairly easy just want to confirm my answer.
I got 1075

Answer 2

you forgot to post the table

Answer 3

https://gyazo.com/9252eae33a7f37da2771d882787b4a8c

Answer 4

My apologies

Answer 5

that's ok

Answer 6

Lol

Answer 7

I was reading another problem, my bad

Answer 8

I'm hitting a stumbling block. It seems like the "4 trapezoids" should be "5 trapezoids"

4 doesn't work because you have the right edges that don't land on given table values

Answer 9

I guess we could leave off the last column of the table since the 5 am cut off happens there

Answer 10

What? I was able to do it with 4 no problem unless you see something I don't

Answer 11

oh nvm, I mistakenly put 3 in there

Answer 12

I'm getting something larger than 1075

Answer 13

Hmm

Answer 14

I'll write out what U did.

Answer 15

I*

Answer 16

here is what the trapezoids look like

Answer 17

\[(\frac{ 100+250 }{ 2 })+(\frac{ 250+200 }{ 2 })+( 200+350)+(\frac{ 350+100 }{ 2 } )\]

Answer 18

yep and that leads to the answer I'm getting, which is 1175

Answer 19

Probably miscalculated. Let me give it another go

Answer 20

You are right.