Need help with math homework! MATH EXPERTS!

[Joony]

With this solve for h things.

V=PIE r^2 h

poor me

read the thread as I progress

 

[thawolfman]

PIE? What kind? I may want a slice if it's lemon merengue :Q

 

[Joony]

pie as in 3.14

I can't seem to find that TT thing in character map...

 

[thawolfman]

Isn't that Pi? You might wanna change that just incase someone else comes in here looking for a piece of pie

And another free bump for ya

 

[Pr0Hawk]

MMMMMMMMM.....pie.....apple pie.....mmmmmmm

 

[MiataGirl]

hmmm can't you just divide each side by PIE r^2?

so then you'd have h = V / (PIE R^2) ?

 

[amdskip]

Originally posted by: Joony
pie as in 3.14

I can't seem to find that TT thing in character map...

don't use the TT, just use 3.14

 

[ohtwell]

Originally posted by: MiataGirl
hmmm can't you just divide each side by PIE r^2?

so then you'd have h = V / (PIE R^2) ?

Smart gal!


: ) Amanda

 

[ohtwell]

: ) Amanda

 

[Joony]

PIE!

what about

V / PIE r^2 = h?

I did that by dividing PIE r^2 from the right side and put it into the left.

hmm, oops didn't see MiataGirl's post, can anyone else confirm this answer?

Can someone help me with problem 84 as well?

I got A over (1+ r/n)^nt = P

 

[ohtwell]

: ) Amanda

 

[Joony]

you need to solve for H...

 

[ohtwell]

Originally posted by: Joony
you need to solve for H...

I already did! I misread that post and thought that you wanted to see how you would solve it for PIE. Sorry about that.


: ) Amanda

 

[iamwiz82]

this stuff is not hard at all. Please tell me you are at most a freshman in HS.

84. P = A/(1 +r/n)^(nt)

 

[Joony]

Ah, does V / PIE r^2 = h work?

 

[ohtwell]

Originally posted by: Joony
PIE!

what about

V / PIE r^2 = h?

I did that by dividing PIE r^2 from the right side and put it into the left.

hmm, oops didn't see MiataGirl's post, can anyone else confirm this answer?

Can someone help me with problem 84 as well?

I got A over (1+ r/n)^nt = P

That would work or if you wanted to have the stuff in the parentheces (sp?) on the top instead of the bottom you would have:

P = (1+r/n)^nt/A


: ) Amanda

 

[iamwiz82]

yes

 

[Joony]

ima Sophmore in HS taking Advanced Algebra and Trigonometry.

 

[Joony]

ah wow, what about problem 86?

I got

360A / PIE r^2 = Weird 0 with dash in it.

 

[ohtwell]

Originally posted by: Joony
ah wow, what about problem 86?

I got

360A / PIE r^2 = Weird 0 with dash in it.

NM

My answer doesn't work

The 0 with dash through it is called a theta.


: ) Amanda

 

[iamwiz82]

Originally posted by: Joony
ah wow, what about problem 86?

I got

360A / PIE r^2 = Weird 0 with dash in it.

correct.

The easiest way to look at things is to consider PI * R^2 to be one variable. So (theta * x) / 360 = A. 360A/x = theta

 

[iamwiz82]

Originally posted by: ohtwell

Originally posted by: Joony
ah wow, what about problem 86?

I got

360A / PIE r^2 = Weird 0 with dash in it.

O = PIE r^2/360A

I like to get anything with a square on the top so mine looks different but I think both will work.

The 0 with dash through it is called a theta.


: ) Amanda

wait a second, A = (PI*R^2*theta)/360 should be 360A/PI*R^2, not O = PIE r^2/360A

 

[ohtwell]

Originally posted by: iamwiz82

Originally posted by: ohtwell

Originally posted by: Joony
ah wow, what about problem 86?

I got

360A / PIE r^2 = Weird 0 with dash in it.

O = PIE r^2/360A

I like to get anything with a square on the top so mine looks different but I think both will work.

The 0 with dash through it is called a theta.


: ) Amanda

wait a second, A = (PI*R^2*theta)/360 should be 360A/PI*R^2, not O = PIE r^2/360A

A = PIE r^2 theta/360
A/theta = PIE r^2/360
Theta = PIE r^2/360A


I did it like that to get the PIE r^2 on the top of the fraction.


: ) Amanda

 

[Joony]

hmm wow...theta...another question!

You plan to invest $1200 in two funds paying 7.5% and 10% simple intrerest. (there is more risk in the 10% fund.) Your goal is to obtain a total annual interest income of $1000 from the investments. What is the smallest amount you can invest in the 10% fund in order to meet your objective.

...confuses me...wouldn't it be:

7.5x + .10(1200x)= 1000

?

 

[iamwiz82]

A/theta = PIE r^2/360 DOES NOT EQUAL Theta = PIE r^2/360A

1/theta = PIE r^2/360A

if you have 1/theta * A(which is A/theta) removing that theta does not make it theta, it makes it 1/theta. You are giving him the inverse of the correct answers.

You gave him the wrong answer on another problem too.