Question

Please help. attached question

Answer 1

Will you upload under .pdf file?

Answer 2

ill try

Answer 3

First 30-min range:
d lower: 0
d upper: 13 * 30 = 390 m/h

Answer 4

lower estimate cant be 0

Answer 5

In your lecture, time can't be 0?

Answer 6

its asking distance not time

Answer 7

distance = speed * time!

Answer 8

yea but its done in a weird way. its not asking just the lowest interval or the highst interval

Answer 9

Should you upload your notes so I can compare?

Answer 10

I'm researching on net now!

Answer 11

i don't have online notes

Answer 12

but i may be able to show u the book notes

Answer 13

Anything that help me to catch up what level you are is fine :)

Answer 14

thanks! one sec

Answer 15

there will be two files because it all doesnt fit on the screen

Answer 16

:)

Answer 17

this is lower estimate or wahtever

Answer 18

upper

Answer 19

I'm sort of getting the idea :)

Answer 20

okay thanks! I got all of the files attached here

Answer 21

Don't worry, I'll finish up! Just do whatever you want, then I'll show you how to!

Answer 22

thanks

Answer 23

Because Roger's speed is decreasing:
Upper estimate distance for the first 30 min:
15min ( 15 + 14 ) = 435 mi
Lower estimate distance for the first 30 min:
15 min ( 13 + 14 ) = 405 mi

Upper estimate distance for the whole 90 min:
15 min ( 15 + 14 + 13 +13 + 11 + 10) = 1140 mi
Lower estimate distance for the whole 90 min:
15 min ( 0 + 10 + 11 + 13 + 13 + 14 ) = 915 mi

Answer 24

Hey, it takes so long, somehow my internet connection so unstable!

Answer 25

thank you! ill try it out

Answer 26

:)

Answer 27

hm it says itis wrong. I

Answer 28

All wrong?

Answer 29

it doesnt say which one or if all is :( but i remember get 1140 my last tim for something

Answer 30

How about switch lower upper!

Answer 31

but that does not make much sense i dont think

Answer 32

I got 1140 for the upper!

Answer 33

After calculation, I see it makes sense, because the speed is decreasing!

Answer 34

i don't know :( i just had to get all new values and this is my last chance.

Answer 35

Are you sure you enter correctly? because in the question, the lower estimate goes first while my answer the upper estimate goes first!

Answer 36

yea i made sure of that

Answer 37

You did answer in right order already?

Answer 38

yes

Answer 39

i got all new values :(

Answer 40

I'm recalculating!

Answer 41

well i have new stuff :(

Answer 42

new numbers

Answer 43

Something wrong with my calculator!

Answer 44

hope not lol

Answer 45

Because the result different!

Answer 46

its okay. I got new numbers anyway

Answer 47

The method is exactly right! All you do make sure the calculation correctly!

Answer 48

ok ill try it again thanks

Answer 49

Do you want to upload, so you can compare your answer!

Answer 50

i just dont think its doen right fo some reason

Answer 51

upper is adding that extra value at the end. whatever it is i think

Answer 52

The idea is estimate from right end or left end!

Answer 53

its not ends. lower is all of them calculated not including last interval and upper is including last interval

Answer 54

Exactly!

Answer 55

Did you see the set of numbers I entered just different at the left or right end!

Answer 56

im confused im sorry but it didnt look like the examples. its okay! thankyou for trying and giving ur time.

Answer 57

In the example, it has total 6 sets!

Answer 58

When they estimate lower/ upper: they calculate 5 sets!

Answer 59

hmm you might be right. I was confused. shouldi show you my new examples or i could just try it soon

Answer 60

Go ahead, I'd like to clarify it to you!

Answer 61

ok one sec

Answer 62

I'll make sure triple check my calculation this time!

Answer 63

ur awesome thanks here it is

Answer 64

Lower estimate distance for the first 30 min:
15 min ( 14 + 15 ) = 435 mi
Upper estimate distance for the first 30 min:
15min ( 16 + 15 ) = 465 mi

Lower estimate distance for the whole 90 min:
15 min ( 15 +14 +14 + 12 +11) = 990 mi
Uppper estimate distance for the whole 90 min:
15 min ( 16 +15 + 14 +14 + 12 + 11) = 1230 mi

Answer 65

are ya confident :)

Answer 66

Yep!

Answer 67

i think the book mislead u. It's not always six boxes, this one is seven boxes. I feel like lower would be 15(16+15+14+14+12+11) and upper would be 15(15+14+14+12+11+0)

Answer 68

i didnt plug in yet becasue this is my last chance.

Answer 69

No matter how many sets, the idea is just enter n -1 sets from left or right!

Answer 70

I know and I already tested my number over and over!

Answer 71

ok ill do it! haha

Answer 72

it was wrong :( its okay i cant do it anymore times. But you were great. I'll give u points

Answer 73

I really don't need point! All I want is helping you out :(

Answer 74

well ur awesome for being so nice. I can't do any more of it

Answer 75

I believe the system malfunction! You can complain about it with your teacher!

Answer 76

well thank you!

Answer 77

My friends have the same problem while taking the online quizzes.

Answer 78

yea it sucks. Thanks so much though ur great.

Answer 79

Talk to him, you'll see!

Answer 80

Good luck!

Answer 81

thanks!