Math Game

[the_sigman]

I'm on a phone right now, so I can't really post a question right now as this forum is a bit awkward on a phone

Does anyone else accidentally click on a rating when using a phone. I've accidentally disliked some posts before

No problem

 

[the_sigman]

Let's get going:

The problem below is not algebric. I hope it is witin the game rules:

Find C and write how you found it.

Why have I put this one?

• It is different to the ones before.
• It is easy, so good to get going again.
• The guy who ''invented'' this was born and lived in my island and he spent his life less than 10 kilometres away from where I live (do you know him? )

 

[Ho3n3r]

Let's get going:

The problem below is not algebric. I hope it is witin the game rules:

Find C and write how you found it.

Why have I put this one?

• It is different to the ones before.
• It is easy, so good to get going again.
• The guy who ''invented'' this was born and lived in my island and he spent his life less than 10 kilometres away from where I live (do you know him? )

(3x3) + (4x4) = 9 + 16 = 25. Square Root of 25 = 5.

C = 5.

Rule of Pythagoras.

 

[the_sigman]

(3x3) + (4x4) = 9 + 16 = 25. Square Root of 25 = 5.

C = 5.

Rule of Pythagoras.

Nice job, you are next

 

[Ho3n3r]

One morning it starts to snow at a constant rate. Later, at 6:00am, a snow plow sets out to clear a straight street. The plow can remove a fixed volume of snow per unit time, in other words its speed it inversely proportional to the depth of the snow. If the plow covered twice as much distance in the first hour as the second hour, what time did it start snowing?

 

[mystaaRS]

3:00 am?

 

[Sasha Jednak]

One morning it starts to snow at a constant rate. Later, at 6:00am, a snow plow sets out to clear a straight street. The plow can remove a fixed volume of snow per unit time, in other words its speed it inversely proportional to the depth of the snow. If the plow covered twice as much distance in the first hour as the second hour, what time did it start snowing?

You mean distance in 1st hour = 2 * distance in 2nd hour? And it still snow's after 6am? That would make it started in 5.30am, I think.

 

[Ho3n3r]

3:00 am?

Nope

 

[Alexander Macdonald]

So is sasha wrong too?

 

[Sasha Jednak]

I am close, but didn't use math(**) in my thinking. So I missed by few minutes.

 

[mystaaRS]

5:28 am?

 

[Alexander Macdonald]

I gave up on this one, and looked up the solution to a similar question. I'm not going to say anything, partly to not ruin the game and secondly because I still don't understand any of it. I actually thought I was ok at maths, maybe I was wrong.

 

[the_sigman]

@Dewald Nel

 

[the_sigman]

One morning it starts to snow at a constant rate. Later, at 6:00am, a snow plow sets out to clear a straight street. The plow can remove a fixed volume of snow per unit time, in other words its speed it inversely proportional to the depth of the snow. If the plow covered twice as much distance in the first hour as the second hour, what time did it start snowing?

Answer/tips?

 

[the_sigman]

Haven't seen Dewald here, despite tags and quotes, so...

Here you, simplify it as much as possible

 

[Jimlaad43]

4(a-1)^2

 

[the_sigman]

You are next Jim!

 

[Jimlaad43]

A little bit of Parametric Differentiation for you all.

 

[Sasha Jednak]

t=x/2, y=x^5/16-x^2, dy/dx=5*x^4/16-2*x, d2y/dx2=5/4*x^3-2
This should be ok.

 

[Jimlaad43]

t=x/2, y=x^5/16-x^2, dy/dx=5*x^4/16-2*x, d2y/dx2=5/4*x^3-2
This should be ok.

Nope