Question

test

Answer 1

@adajiamcneal

Answer 2

k whats up? :U

Answer 3

haha thanks lol

Answer 4

oo this one is tricky +_+ thinking

Answer 5

ok lol

Answer 6

So we start with a relationship like this: \(\Large\rm 3:16\)

Hmm I know the answer, I just can't think of the right way to explain this :c
So the ratio is 3 to 16.
So the `3 times the length` of any side of the first figure, will correspond to
`16 times the length` of a side of the second figure.

fjdkaslfjasklfasd,
anyway, to get area, we square things.
to get volume, we cube things.

side relations \(\Large\rm 3:16\)
area relations \(\Large\rm 3^2:16^2\)

Answer 7

volume relationship \(\Large\rm 3^3:16^3\)

Answer 8

So which option do you think? :3

Answer 9

D?

Answer 10

yay good \c:/

Answer 11

haha ok :) so far i have the rest but ill tagg you into a different post so you can get more medals :)

Answer 12

pshh doesn't matter +_+

Answer 13

medals, pshhh

Answer 14

hahaha i see what you did there. :) ill tagg you into another one lol

Answer 15

seems like it'd just be easier to post them all in here, doesn't it? :D

Answer 16

ok then haha whatever makes it easier for you haha

Answer 17

idk what to do...the radius isnt a radius anymore haha

Answer 18

I suppose it's a `diameter` now.
Do you remember how radius relates to your diameter?
What? Half of it? Yessss correct!

Answer 19

So that will allows us to find our radius, ya?

Answer 20

ohhhhh duh

Answer 21

Do you have a formula for lateral area of a cone handy or no? :)

Answer 22

Google is telling me that it's:\[\Large\rm A_L=\pi r \sqrt{h^2+r^2}\]

Answer 23

And we have all of the pieces, ya?
r=120
h=50

Answer 24

so d?

Answer 25

Hmm I don't think soooo.

Answer 26

Plug the numbers in :O Use your calculator!

Answer 27

\[\Large\rm A_L=\pi\cdot120 \cdot\sqrt{50^2+120^2}\]

Answer 28

i meant a i have no idea why i put d

Answer 29

yay \c:/

Answer 30

doing that awful online school garbage are you? <.<

Answer 31

yes i am haha

Answer 32

do i just multiply 12 and 12 and 9 or do something else? my brain is not working rn

Answer 33

Yes, you have the right idea.
But notice that the dimensions `do not match`.

Some of them are in feet, and another one is in inches, ya?

Answer 34

greeeat but i know how to fix that :)

Answer 35

nevermind i lied to you do i just convert the feet to inches?

Answer 36

As strange as this sounds, I think it'll be easier to convert the inches to feet.

Answer 37

So 9 inches, a foot is 12 inches.
9/12 is how much?

Answer 38

3 quarters :D

Answer 39

.75 haha

Answer 40

Mmm k good, so we want to use the 12, 12 and 0.75 for our multiplication.
That will get us through half of the problem, that is the volume that we have.

Answer 41

i got 108.

Answer 42

Ok so we have 108 `cubic feet` of concrete.
It costs $54 for each `cubic yard` of concrete.

So we simply multiply the `price per cubic unit` with the `number of cubic units` and that will tell us the total price.

But notice! Our units don't match again, right? :(

Answer 43

why do you do this to me? lol so what do we do?

Answer 44

This step is going to be rather tricky.
We need to convert our feet to yards, or our yards to feet.
Let's convert our feet to yards, I think it will make more sense.

Answer 45

\[\Large\rm 108(\color{orangered}{ft})^3\]There are 3 feet in a yard,
so what is `one foot` in relation to yards?

Answer 46

\[\Large\rm 3ft=1yd\]If I divide by 3,\[\Large\rm 1ft=\frac{1}{3}yd\]Since 3 feet is 1 yard,
that means that 1 foot is a third of a yard, k? :o

Answer 47

So we're going to try and convert our units to yards,\[\Large\rm 108\left(\color{orangered}{ft}\right)^3=108\left(\color{orangered}{\frac{1}{3}yd}\right)^3\]I replaced the 1 foot with 1/3 of a yard.

Answer 48

This is the part that gets trickyyyyy :(
Notice we didn't simply have feet, we have `cubic feet`.
So we need to cube our 1/3.

Answer 49

\[\Large\rm 108\left(\color{orangered}{ft}\right)^3=108\left(\color{orangered}{\frac{1}{3}yd}\right)^3=108\cdot\frac{1}{27}yd^3\]Understand what I did there? +_+
lil bit?
maybe?

Answer 50

brain esplode?

Answer 51

i have no idea what you just did. i honestly think my brain is broken rn haha

Answer 52

To convert from `feet` to `yards` we normally divide by 3.

But since we have cubic units,
to convert from `cubic feet` to `cubic yards` we instead divide by 3^3, which is 27.

Answer 53

i got 29.16 ?

Answer 54

We want to divide our 108 by 27 to get the cubic yards of our concrete.

Answer 55

now i got 4

Answer 56

Ok good, so we have `4 cubic yards of concrete`.
And the charge is `$54 for each cubic yard of concrete`.

Answer 57

So now it's simple multiplication from here! :)

Answer 58

$216 :) My life <3 i think im overcoming my biggest obsticle in life hahaa jk

Answer 59

yay good job \c:/

honestly though, that problem is quite difficult for your level.
It was like 5 steps or something; you had to convert units twice...
you shouldn't worry about getting a problem like that correct most of the time :P

Answer 60

Ooo they put National Treasure up on Netflix! :O

Answer 61

i got 73.3% on my test :) haha go watch your show thank yuo so much for helping me honestly if i did it by myself i wouldv gotten and f

Answer 62

73? Ok that's not too bad :O

Answer 63

Yeah i know :) haha thank you :D i dont want to bother you any more though have a good night and watch your show. unless you want to just talk it doesnt matter hah

Answer 64

sophomore huh? Just a baby still! :) idn't dat cute