Melody

Good work Hectictar :)

There is no way I could read this question, it was just too small.

sin^2(x) + cos(x) + 1 = 0 In the interval [0, 2π)

\(sin^2(x) + cos(x) + 1 = 0 \\ -cos^2(x) + cos(x) + 2= 0\\ cos^2(x) - cos(x) - 2= 0\\ let\;\;t=cos(x)\\ t^2-t-2=0\\ (t-2)(t+1)=0\\ t=2\;\;or\;\;t=-1\\ -1\le t \le 1\\ so\;\; t=-1\\ cos(x)=-1\\ x=\pi \)

what is 139.675 what? in pounds

There is not answer because you have given no units.

3a divided by (6b)

\(3a/(6b) = \frac{3a}{6b}= \frac{a}{2b}\)

That is probably the best answer :)

YES you are absolutely right Hectictar. Nice correction :))

Give yourself another point becasue I can't.  

You should give your self points for all your good answers, most other people do ;))

these confuse me a little but by convention you mean  

\(2^{(3^3)}=2^{27}\)

Think about it,  that modulus formula, doesn't it remind you of the hypotenuse of a right angled triangle formula (puthagorean theorum) ?

What hypotenuse does it give?

If you can work out what I am talking about, it is a very easy question :))

I'll leave you to think about it for a bit :)

I just looked it up, there are 16 ounces in a fluid pint So can you work it out yourself now?

Ok Asad, :))

Thanks for answering :)

You are right, it certainly cannot be a trapezoid or a circle :)

If the base is a rectangle and  you chop it parallel to the base, that means in the same direction as the base, (sideways) then you will get smaller and smaller rectangles.  Can you see that?

If you chop it perpendicular to the base, that is like the chocolates in a toblerone bar are divided, then each cros section will be a triangle, exactly the same as the triangle at the front. :)

Think about it :)