All Answers 358090 Answers

9+10 = 19

122+133 = 255

haha. I had not even typed in the equation to answer it, when I saw your answer already there, I was like

" Huh, Not even worth typing then, That person kicked my butt". Haha

If that's the equation you've been given then i'd use Heureka's answer but it may be worth questioning.

2+2=4

haha, well I'm really just procrastinating while I should be revising.

9+9=18

I jusr copied it down from my worksheet. I did not think that the equation looked right, But was afraid to question it.. 

Hi InjustaGod...

From the information you've been given, yes heureka you would be correct however that information is flawed as that is not the correct formula for calculating the perimeter of an ellipse. Not sure who has written that question but they've made an error.

The correct formula is

\(p = 2\pi * \sqrt{0.5*(h^2+w^2)}\)

Couldn't find the symbol but it should be noted that this is approximately equal to, not equal to exactly.

true

There are 2 different answers. :/

Thurs 14/1/16

1)  How long will it take.  I like these problems.  Thanks Solviet, Hayley, Melody Guest and CPhill.

     http://web2.0calc.com/questions/hmm_1

2)  Geometry   CPhill is great at these :)

     http://web2.0calc.com/questions/triangle_5

3)  Simplifying algebraic fractions        Thanks Heureka

     http://web2.0calc.com/questions/need-help_93867

4)  Find the next four numbers in this sequence.   Thanks Heureka

     http://web2.0calc.com/questions/sequence_3

5)  Degrees minutes seconds on a online or downloadable calculator, has anyone seen one?

     http://web2.0calc.com/questions/i-need-that-dms-button

Well, This person just kicked my butt! Haha.

4n+3=117
4n=114

n=114/4

n=28.5

Mai is putting gold foil around the outside of an elliptical picture frame. The permieter of an ellipse is given by the formula p=3.14/2 Squareroot(2(h^2+w^2), where h is the height and w is the width, as shown in the diagram below. If an elliptical frame has an outside height equal to 4 inches nd an outside width equal to 3 inches. What is its outside perimeter, in inches?

So, What im getting is plug in the number for the variables?

\(\begin{array}{rcl} p &=& \frac{\pi}{2} \cdot \sqrt{ 2 \cdot \left(~ w^2+h^2 ~\right) } \qquad w = 3\ \text{inch} \qquad h = 4\ \text{inch} \\ p &=& \frac{\pi}{2} \cdot \sqrt{ 2 \cdot \left(~ 3^2+4^2 ~\right) } \\ p &=& \frac{\pi}{2} \cdot \sqrt{ 2 \cdot \left(~ 5^2 ~\right) } \qquad 3^2+4^2 = 5^2 \\ p &=& \frac{\pi}{2} \cdot 5\cdot \sqrt{ 2 } \\ p &=& \pi \cdot 2.5 \cdot \sqrt{ 2 } \\ \mathbf{p }& \mathbf{=} & \mathbf{11.1072073454}\ \text{inch} \end{array} \)

Given that you've defined no variables there, all you've done is postulated an impossible equation to solve with the information given.

Okay, I think I understand..

4/8 = 1/2

(1/4) / (1/2) = 1/2

3+5 = 8
8^2 =64

It's 64.

@@ What is Happening?  [Wrap4]   Wed 13/1/16   Sydney,  Australia Time 12:54 pm   ♪ ♫

A good day to you all.

Our wonderful answerers are:  Heureka, CPhill, Dragonlance, Admin, Coldplay, Hauley1, xvxvxv, gibsonj338 and Geno3141.   Thanks everyone 

Technical Issues:

Yesterday Mr Massow fixed out picture posting problem so it is easier again now