EmeraldWonder

This is what the equation should look like:

\(2(\frac{2}{5}+\frac{1}{3})\)

Well you would need to break down the problem first add the 2/5 and 1/5

You were on the right track by solving one side. You were still using PEMDAS because you worked on the side of exponenets you just needed to do the other side.

\(\frac{1}{2} * 3^3 + 3.4 *4\)

Change the fraction into a decimal to be easier. And first do the exponent. Since you are using PEMDAS.

\(0.5 *27 +3.4 *4\)

Then multiply both sides

\(13.5 +13.6\)

27.1

Hope this helps ;P

But that wouldnt be the correct answer since 27/2 is 13.5 and that isnt an answer. He should use PEMDAS.

Acrually you would need to do 

Perenthasis

Exponents

Multiplication

Divide

Add

Subtract

If there isnt a perenthasis then do exponents first.

So taking in HiyinLink's advice it would be:

-1 ÷ (-1) = 1

Hope this helps ;P

Yes you are in fact correct. When something is normally distributed, it means that the amount is a very common continuous probability distribution. The first three cannot be determined and it is not naturally distributed.

While the last one is something that is measured to be distributed correctly.

Hope this helps ;P

8.4426 rounded to the nearest hundreth would be 8.44

That is because the number that is in the hundreth place is 4 and in the thousanth place is 2. Which is smaller than 5 so it wouldnt go up a round. 

Hope this Helps ;P