Math Student Help

Add. Simplify, if possible.

3 ……. 1
—– + —–
4z^3 . 6z^2

Note: those are fractions. I put the dots to keep the numbers from running together.

Thanks!

The hardest part is getting the least common denominator. In your case, 12 as a number is the LCM of 4 and 6. Then, you also need the most, or highest power of, number of z’s. In the first fraction, we have 3. So, the LCD is 12z^3. Now, on top you most multiply by whatever you seemingly "added" to the bottom. For the one on the left you need a 3 and the one on the right you need a 2z.

Therefore, you end up with (9+2z)/(12z^3). In this case, you can not simplify at all!

We just poured a concrete addition to our patio and it dips in the center as well as the elevation being way off. The guys stamped the concrete so the texture is rough. How can this be fixed? And with what type of material? Some type of overlay?? Any suggestions would be great.

There’s really not much you can do apart from topping it and then unless you put down a reasonably thick topping you run the risk of it breaking up, with something like this product http://www.sakrete.com/projects/project.aspx?ID=UnlevelConcrete

Or you could try hiding it with tiles, I’d use a terra cotta tile which would be perfect for a patio and reasonably cheap to boot, the bigger the tile the cheaper it is to put down.

http://www.made-in-china.com/image/2f0j00kvJtopOKZEuIM/Terra-Cotta-Tile.jpg

How many languages/dialects are spoken in China, in addition to Mandarin? What is the geographic location of the specific languages/dialects spoken in China?

WIKIPEDIA HAS THE ANSWER TOO

What items in addition to cost may be added to the acquisition of the following plant assets: land, machinery and equipment, and buildings? In your opinion, what accounting challenges might these pose?

you may also add closing cost, improvments such as clearing and I’m pretty sure you can add professional fees as well. the biggest problem (as I can remember) was what you make your journal entry. (is it costs or exspense)

There is a foundation beneath the room, no access to get underneath the room. I’m looking for a way to remove the water from underneath the addition, to prevent damage to structure. There is drain tile running along the house but it is at a higher level than the depth of the water under the room.

Hire a basement specialist. Yes, I know there is only a foundation, which by law must go down at least 4 feet. A basement contractor could at least make suggestions on how to handle the problem. With a real basement, weeping tiles are connected to a sump system that then pumps the water away from the house. Maybe your addition needs weeping tile under it as well.

I’m writing an essay for math (stupid, I know -_-) and I feel like I used the words addition and subtract way too many times. Any alternatives?

synonyms for:
addition: http://thesaurus.reference.com/browse/addition?o=100074
subtraction: http://thesaurus.reference.com/browse/subtraction?o=100074

I’ve been looking at auto mod sites and have seen some pretty cool halo kits. I’m a little bit confused though. Are the halos in addition to, or a replacement for, regular headlights?
Some halos I’ve seen are so bright they could easily be the headlights. Others look more like daytime running lights. So which is it?

they can be both It depends on what they offer at the particular site you’re looking at.

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Imagine a diagram possible like this "___/___" one side is labeled "angle 1" and the other is "angle 2." This is the only information they give me. I would put "measure of angle 1 plus measure of angle 2 equals 180" by angle addition postulate right? If not, explain why. Explain when to use definiton of supplementary angles too please.

This is not the angle addition postulate. The angle addition postulate states that if you have two adjacent angles, you can rename the two small angles as one bigger angle. If the angles are ABC and CBD, where they share ray BC, you can rename these two angles as the large angle ABD. Angle addition postulate would be your reason for saying that ABC + CBD = ABD.

The property your looking for where showing that angle 1 + angle 2 = 180 degrees would either be the definition of a linear pair. Usually we only use definition of supplementary if you have "angle 1 and angle 2 are supplements" as given information. All you showed me as a given is the drawing, which means you can assume a linear pair.

We say that set of real numbers is union of sets of rational and irrational numbers.Now set of irrational numbers is not a group under addition.Then how is it possible that its union set can be a group under addition.
In short I mean to say that is it possible always that a union set possess a property that isn’t in one of its subset?

As hemu said, the irrationals lack an identity element.

Your question about unions and subsets is worth addressing. Yes, a property of a set will be a property of any subset IF the property is stated in terms of individual elements. so for example, "for any two real numbers x and y, then x+y=y+x." If you accept this, then the property is inherited by any subset such as the irrationals or the integers, because they are special cases of the general statement.

but the property "there exists an identity" will not be inherited by any subset that omits the identity! there is no property of the real numbers that says "for any real numbers x1,x2,……., there exists j such that xj = 0."