Question

need help on the attachment @MIT 18.01 Single …

Answer 1

if a read it right, 12/4 = 3 months per quarter; and the second quarter is from 3 to 6 months

the average for the 2nd Qtr is then:

S(6)-S(3)
------- ; average rate is measured by the slope between end points
6 - 3

Answer 2

the live preview lies .... it doesnt take into account the width of the icon, urg

Answer 3

\[\frac{S(6)-S(3)}{6-3}\]

Answer 4

Sorry for taking while to respond, but internet was off for while. I still don't get what to do next?

Answer 5

do you not understand how to apply amistre's answer and finish?

Answer 6

you can find S(6) right? it's just a good old-fashioned plug in and solve situation

Answer 7

the value when t=6, subtract the value when t=3

and divide the whole thing by 6-3, which is 3

Answer 8

the function notation S(t) means:

the value of S depends on the value of "t"

when "t" is replaced by a number; that indicated that t takes on that value in the equation.

S(6) means; the value of the function when t=6

S(15) means;the value of the function when t=15

and so on

Answer 9

where did you get 15 from

Answer 10

I plug in 6 into the equation and got 141, and the I plug in 3 into equation and got 39. then I subtracted 141-39=102/3=34, but there no answer choice with 34

Answer 11

The 15 was just an hypothetical example, it is not a part of your problem.

I did, however, do the problem myself and came to the same conclusion as you: 34

hm.... what's going on here? I'll have to think about it. Maybe I'll look for amistre. Maybe your paper has an error? I'll get back to you.

Answer 12

ok

Answer 13

then average is meaning something else in this context perhaps

Answer 14

still reads the same to me ... the average over the 2nd qtr.

we got our quarters good?

1st 1-3
2nd 3-6
3rd 6-9
4th 9-12

looks good there

Answer 15

maybe it 4 to 6

Answer 16

try that:

S(6) - S(4)
--------
6-4

Answer 17

I got 38 and that still not one of the answer choices

Answer 18

yeah, 38 is that one ....

hmmm

Answer 19

its apparently using "average" in a different context than normal

Answer 20

maybe we have to take the derivative or anti-derivative of the function then plug the numbers in

Answer 21

that would make practically no sense

Answer 22

maybe the average from 1 to 6?

derivative is the instantaneuos average at a point; not over an interval

Answer 23

that would be 26 which is not answer choice

Answer 24

you can try your derivative idea .... cant hurt :)

Answer 25

instantaneous average lol .... like thats a word

Answer 26

after of taking the derivative of the function I get 16t-2, and then plug in 6 and 1 respectively into the t variable I get 80

Answer 27

the derivative should be 8t-2. so sorry but we're still messing up apparently

Answer 28

yep your right my bad

Answer 29

thats not what a derivative does. you dont take an average by comparing the rates of change at 2 seperate times

Answer 30

the answers are so much larger than it seems they should be, something seems amiss here

Answer 31

well I copy down the problem right

Answer 32

if im going 20 miles an hour at 4pm and 75 mph at 5:30pm then my average between 4 and 5:30 is not the sum of 20 and 75, divided by 2

Answer 33

I don't doubt it, but somebody made a mistake somewhere, I am almost certain.

Answer 34

you got this online, right? they maybe made a mistake somewhere

Answer 35

well its an online homework called quest

Answer 36

the mistake is in how they worded the problem most likely; its like the said one thing but meant another

Answer 37

try integrating if from 3 to 6 maybe?

Answer 38

well "quest" seems errant as far as I can tell

Answer 39

let's try...

Answer 40

222 aint an answer :)

Answer 41

no it ain't

Answer 42

What Does Average Inventory Mean?

A calculation comparing the value or number of a particular good or set of goods during two or more specified time periods.

Average inventory is the median value of an inventory throughout a certain time period.

A basic calculation for average inventory would be:

(Current Inventory + Previous Inventory) / 2

For example, the current inventory, $10,000, is added to a previous inventory - for example, the inventory on the same day of the previous year, such as $8,000 - and divided by the two balance points, for an average of $9,000 (($10,000 + $8,000) / 2 = $9,000).


http://www.investopedia.com/terms/a/average-inventory.asp#ixzz1dR3avXBX

Answer 43

right, which is what we did, so WHAT IS HAPPENING HERE?

Answer 44

I think this "quest" is quixotic ;)

Answer 45

try:

S(4,5,6)
-------
3

Answer 46

add up the 4,5,6 months which is the 2ndqtr, and divide by 3

Answer 47

101.666666........
is not the answer

Answer 48

click on next and head to another problem :)

Answer 49

yup, I agree

Answer 50

ok