calc ques

Question

calc ques

anonymous · Answer

cost of a cable is $$6\sqrt{2}$$. explain meaning of $$\int\limits_{25}^{30}6\sqrt{x}$$ in context of this problem

amistre64 · Answer

it looks to be the length of the cable...maybe

anonymous · Answer

how did you get that? random guess?

amistre64 · Answer

yeah...random guess :)  gut feeling, intution.... sheer imagination

anonymous · Answer

i bleeve in ure answer since uve 211 fans :)

amistre64 · Answer

ohnoyou dont, dont let this number fool ya...im an idiot in disguise :)

anonymous · Answer

hahaha

amistre64 · Answer

without a complete problem to go on, thats just my guess :)

anonymous · Answer

well ok: company makes cables for 120 bucks a meter. for a fixed length, the price to make the cable is 6 rad 2.

amistre64 · Answer

6sqrt(2) per foot?

anonymous · Answer

per meter
 but yes thats the right EQ

amistre64 · Answer

er...meter

anonymous · Answer

:)

amistre64 · Answer

then those numbers on top and beneath your integral sign would most likely be an interval of length of some sort...

anonymous · Answer

yes it is

amistre64 · Answer

the "line" integral is a squareroot function... I know that much :)

anonymous · Answer

srry the 120 refers to the company SELLING price

anonymous · Answer

what is a line integral o.O

amistre64 · Answer

the line integral is:

$$\int\limits_{} \sqrt{[f'(x)]^2+[g'(x)]^2} dx$$

anonymous · Answer

uh ok

amistre64 · Answer

or if y is a function of x...then f'(x) = 1  and you put in the functiuon for y on the other side

anonymous · Answer

o.o

amistre64 · Answer

you might notice the format from finding the length of the hypotenuse of a right triangle

amistre64 · Answer

c = sqrt(a^2 + b^2)

anonymous · Answer

yeah. missing the deriv's though

amistre64 · Answer

yep, same concept, your trying to find the length of a curve by looking really close at it until it flattens out

anonymous · Answer

oh.

amistre64 · Answer

then adding up all the little bitty flat parts

anonymous · Answer

so you still think the answer to my question is the total length of cable?

anonymous · Answer

doesnt seem right to me cause you alredady have 25 and 30. possibly something w/ the price?

amistre64 · Answer

i think it has something to do with the length of a cable.... yeah, but to be sure id have to know the average rainfall in the amazon...you know the basics :)

amistre64 · Answer

price involved with length....its in there someplce

anonymous · Answer

haha ok thx. i just gonna fake this one... thx for help!

amistre64 · Answer

lol...sure thing ;)