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Type: Posts; User: Denis

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1. ## Thread: Need help understanding these types of problems.

by Denis
Replies
15
Views
273

### Ahhh...ok...but I've reworded the problem: field...

Ahhh...ok...but I've reworded the problem:
field must be rectangular
shared fence parallel to W or L

In other words, Subhotosh's equation.
2. ## Thread: Need help understanding these types of problems.

by Denis
Replies
15
Views
273

### You've lost me Jeff: what meanest thou?

You've lost me Jeff: what meanest thou?
3. ## Thread: Need help understanding these types of problems.

by Denis
Replies
15
Views
273

### Well, certainly looks like a rectangle was...

Well, certainly looks like a rectangle was intended (as Subhotosh says);
so 400 by 300 = 120,000 sq.ft.

800*$3 + 600*$3 + 300*$2 =$4800

Corner??
4. ## Thread: Need help understanding these types of problems.

by Denis
Replies
15
Views
273

### Already there; that's why I posted: Ahhh...

Already there; that's why I posted: Ahhh shucks......>|_ (that's a corner!)
5. ## Thread: Need help understanding these types of problems.

by Denis
Replies
15
Views
273

### Ahhh shucks......>|_

Ahhh shucks......>|_
6. ## Thread: High School Level: Fun yet tricky triangle problem with diagram.

by Denis
Replies
2
Views
85

### Further to TK's suggestion: can you show that y^2...

Further to TK's suggestion: can you show that y^2 - x^2 = 500?
7. ## Thread: Need help understanding these types of problems.

by Denis
Replies
15
Views
273

### Or since a square produces maximum area, you can...

Or since a square produces maximum area,
you can use side = L, thus perimeter 4L.

You can then forget about the shared fence:
instead, use 3 sides @ $3 and other side @$5.
8. ## Thread: Parabolic word problem.

by Denis
Replies
4
Views
85

### Here you go, TK :...

Here you go, TK :
https://www.gracegems.org/E/parables.htm

by Denis
Replies
3
Views
102

### Doug, scorn and making fun OF you are the...

Doug, scorn and making fun OF you are the farthest thing from my mind.
I thought we were both having fun...felt like that to me anyway.

Apologies and sorry you took it the way you did.
I will...
10. ## Thread: dollar and cent coins were mixed up. banker needs help!

by Denis
Replies
4
Views
147

### I get p = (199k + 5) / 98 k and p > 0 and

I get p = (199k + 5) / 98

k and p > 0 and < 100 and are integers

Only one solution....
11. ## Thread: (Help) Finding "x" in an equation: (x-1)3/4 = 64.

by Denis
Replies
2
Views
140

### Can you solve: x(3/4) = 60 Btw, x(3/4) means...

Can you solve:
x(3/4) = 60

Btw, x(3/4) means x multiplied by 3/4.
Usually shown as: (3/4)x

by Denis
Replies
4
Views
217

### I CAN't think of a better answer!!

I CAN't think of a better answer!!

by Denis
Replies
4
Views
217

Huh?!
14. ## Thread: Finding X using a focal Date: Mr.D borrows $2000 now and$3000 in 4 months.

by Denis
Replies
2
Views
279

### Why are you calling it a focal date? Shouldn't...

Why are you calling it a focal date?
Shouldn't it simply be "final payment date"?

By simple interest, do you mean (1+ i)^12 = 1.12,
which means ~11.3865 annual compounded monthly?

by Denis
Replies
4
Views
217

### Cryptic dancing

Easy one:
Dance by American trio and African trio (6) no e
16. ## Thread: A French Limit

by Denis
Replies
2
Views
144

### Au Canada, 22 minutes est la limite, tabarnak!

Au Canada, 22 minutes est la limite, tabarnak!
17. ## Thread: A French Limit

by Denis
Replies
2
Views
144

### A French Limit

Hmmmm......debout dans le coin pour 22 minutes!:p
18. ## Thread: Solving Pythagoras Theorem eqn a^2 + (1.3a)^2 = c^2 for "a": possible?

by Denis
Replies
4
Views
237

### Let k = 1.3; then: a^2 + (ka)^2 = c^2 a^2 +...

Let k = 1.3; then:

a^2 + (ka)^2 = c^2
a^2 + k^2 * a^2 = c^2
a^2(1 + k^2) = c^2
a^2 = c^2 / (1 + k^2)
a = sqrt[c^2 / (1 + k^2)]

Try that out using (as example) k = 3 and c^2 = 250
You'll...

by Denis
Replies
7
Views
400

### Yip a doo day it works !!! Do I have to...

Yip a doo day it works !!!

Do I have to tattoo #f0f8ff on my wrist?

Edit: just noticed that the "hidden stuff" appears in the "latest posts" area...

by Denis
Replies
7
Views
400

### HOW?! Other sites I go to work like this: ...

HOW?!
Other sites I go to work like this: message

Is there a "place" here where the local procedure is explained?

by Denis
Replies
7
Views
400

Yes.

by Denis
Replies
2
Views
342

d-c---t-d
23. ## Thread: How to find angle x marked in red? (bearings from Point X to pts R, S which are...)

by Denis
Replies
7
Views
318

### Look at the diagram: you're saying that angleRXS...

Look at the diagram: you're saying that angleRXS = 60 degrees?
Impossible.
However, the word "bearing" gives me a headache.
I quit here!
Hope a better helper like DrP steps in.

by Denis
Replies
7
Views
400

### answer: French word beginning with pi How do...

answer: French word beginning with pi

How do you "hide" here?
25. ## Thread: How to find angle x marked in red? (bearings from Point X to pts R, S which are...)

by Denis
Replies
7
Views
318

### I don't get that; what is equal to 92? I get XS...

I don't get that; what is equal to 92?
I get XS = ~105 and XR = ~70, so RS = ~35

But if you say 92 is the given answer, then I'm
certainly missing something.
It simply looks to me like the...
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