Friday

December 2, 2016
Total # Posts: 1,367

**4th grade math**

oops, not 1.0492 * 104, but 1.0492 * 10^4

*April 4, 2009*

**4th grade math**

it's another word for scientific notation. It's "A method of writing or displaying numbers in terms of a decimal number between 1 and 10 multiplied by a power of 10. The scientific notation of 10,492, for example, is 1.0492 ¡Á 104."

*April 4, 2009*

**English**

yeah, basically

*April 4, 2009*

**9th grade - Algebra???**

standard form is ax+by=c. so just plug them all into that form. for example, the first one would be -14x-18y=24. you have to change the sign of 18 because you move it to the other side of the equation.

*April 4, 2009*

**science**

thanks

*April 3, 2009*

**science**

but is there any difference between them?

*April 3, 2009*

**science**

is disconformity and unconformity the same thing?

*April 3, 2009*

**science**

i got this from wikipedia: The stratosphere is a region of intense interactions among radiative, dynamical, and chemical processes, in which horizontal mixing of gaseous components proceeds much more rapidly than vertical mixing.

*April 2, 2009*

**math**

Suppose you have $28.00 in your bank account and start saving $18.25 every week. Your friend has $161.00 in his account and is withdrawing $15 every week. When will your account be the same?

*April 2, 2009*

**math**

thanks

*April 2, 2009*

**math**

like, how does graphing help you solve a system??

*April 2, 2009*

**math**

how can you solve a system by graphing?

*April 2, 2009*

**science**

no, i was just replying to chairty, that's all..

*April 2, 2009*

**science**

Oh, that's because I need help in math right now, but I'm okay with science..

*April 2, 2009*

**science**

The majority of our weather occur in this layer of the atmosphere, the troposphere.

*April 2, 2009*

**7th grade**

here's what i found on the interent: In Aruba the newspapers almost never publish a weather report. They don't need to. Around here, "sunny and warm" is not news. With an average rainfall of less than 20 inches a year, an average daytime temperature of 82&...

*April 2, 2009*

**Science**

I just know that "The lactic acid system is capable of releasing energy to resynthesise ATP without the involvement of oxygen and is called anaerobic glycolysis."

*April 2, 2009*

**geography**

you mean what is aruba's latitude and longitude? it's 12¡ã30' North and 69¡ã58' West.

*April 2, 2009*

**science**

thanks

*April 2, 2009*

**science**

usually, which is younger, the pebbles in sand, or the sand surrounding the pebbles? I think it's the pebbles in sand.

*April 2, 2009*

**math**

since y=mx+b..

*April 2, 2009*

**math**

isn't it y=5x+6?

*April 2, 2009*

**science**

also, how can major volcanic eruptions be used to correlate rock layers at different locations around the world?

*April 2, 2009*

**science**

Are faults, folds, intrusions, and extrusions always younger than the strata in which they are found??

*April 2, 2009*

**science**

looking at the geologic time scale of new york, for the archaen eon, how many eras are there? i think it's 3..

*April 2, 2009*

**math b**

i^13, since you subtract 3 from 16.

*April 1, 2009*

**Math**

i see..

*April 1, 2009*

**Math**

Define variables and write a system of equations for this situation. Solve using substitution. Suppose you want to join a video store. Big Video offers a special discount card that costs $9.99 for one year. With the discount card, each video rental costs $2.49. A discount card...

*April 1, 2009*

**math**

I'm posting things cuz i suck at math. I did: 2-0.12b-1.2b=-3 2-1.32b=-3 -1.32b=-3-2 -1.32b=-5 b= -5/1 divided by 1 32/100 b=-5/1 divided by -132/1 b=5/1 * 1/132 b=5/132

*April 1, 2009*

**math**

no, i got 5/132.

*April 1, 2009*

**math**

yes.

*April 1, 2009*

**math**

no, I mean what do you get when you do this: 2 - 0.12b - 1.2b = -3.

*April 1, 2009*

**math**

when you plug in a=2-3/25b in the equation a-1.2b=-3, what are you supposed to get?

*April 1, 2009*

**math**

no, that is not what I do. You don't know anything about me, why do you care?

*April 1, 2009*

**math**

how do you combine the like terms?

*April 1, 2009*

**math**

l=68/l+5 what do you get if you want to combine the ls?

*April 1, 2009*

**math**

thank you, i get it now

*April 1, 2009*

**math**

but forming one for the perimeter would be 2L+2w=34.

*April 1, 2009*

**math**

aren't you supposed to form it for the width?

*April 1, 2009*

**math**

The length of a rectangle is 5 cm more than twice the width. The perimeter of the rectangle is 34 cm. Find the dimensions of the rectangle.

*April 1, 2009*

**math**

ok then thanks

*April 1, 2009*

**math**

what if for one equation it's 3=5, and for another it's also 3=5?

*April 1, 2009*

**math**

oh,ok.. let's say for one equation you get 2=2, and for another, you get 4=4.is the ordered pair a solution of both equations?

*April 1, 2009*

**math**

what does it mean for an ordered pair to be a soltuin of both equations? for example,for this system, is the ordered pair a solution of both equations? (2,2.4) 4x+5y=20 2x+6y=10

*April 1, 2009*

**To Happy Face**

books.google

*April 1, 2009*

**math**

8/5b=15 if you want to isolate b, then b=75/8?

*April 1, 2009*

**Please Help!!**

it's barnes and nobles.

*April 1, 2009*

**math**

ok, i just don't get the whole problem: Solve this system using substitution. Check your substitution. C(n)=-3n-6 C(n)=n-4

*April 1, 2009*

**math**

if n=-2, then in C(n)=n-4, you just have to do C(n)=-2-4, right?

*April 1, 2009*

**social studies**

ok, these were the causes: 1. First, a series of trade restrictions introduced by Britain to impede American trade with France, a country with which Britain was at war; the U.S. contested these restrictions as illegal under international law. 2.Second, the impressment (forced ...

*April 1, 2009*

**social studies**

i think you're talking about the war of 1812. i got this from wikipedia. There were several immediate stated causes for the U.S. declaration of war. First, a series of trade restrictions introduced by Britain to impede American trade with France, a country with which ...

*April 1, 2009*

**Factoring polynomials**

First, you find the GCF.

*April 1, 2009*

**science**

Earthquakes with a magnitude 8.0 don't occur very often, only once in 5-10 years.

*April 1, 2009*

**Social Studies**

what are Ponhatons?? I googled it and there were no results at all..

*April 1, 2009*

**science**

well, to find an epicenter, first you have to measure the distance between the first P wave and the first S wave. So, that's how you have to use seismic waves to determine an earthquake's epicenter.

*April 1, 2009*

**science**

well, buildings on soft sediment is not good in earthquakes. when a building has a steel-frame it's safer..andbeing made of wood is also good.

*April 1, 2009*

**science**

stare=state agian=again sorry

*April 1, 2009*

**science**

then it gets stretched out..and the rcoks will never return to it's original stare agian. like a rubberband. if you stretch it too hard, when you stop stretching it, it still won't look the same.

*April 1, 2009*

**science**

primary waves arrive first. then secondary. then seismic. seismic also does the most damage.

*April 1, 2009*

**science**

1.primary 2.secondary 3.seismic

*April 1, 2009*

**english**

yes ,it can be, if you want that to be your main idea.But in whatever you're writing, you have to have information to back up your statement.

*March 31, 2009*

**literacy**

when you're writing a title, how do you know what words to capitalize the first letter?

*March 31, 2009*

**Math**

what's the proportion when it's solved, using g/b=22/23?

*March 31, 2009*

**Math**

There are 1170 students in a school. The ration of girls to boys is 23 : 22. The system below describes..? relationships between the number of girls and the number of boys. g+b=1170 g/b=22/23 a. Solve the proportion for g. b. Solve the system. c. How many more girls are there ...

*March 31, 2009*

**Math**

Define variable and write a system of equations for this situation. Solve using substitution. A farmer grows only sunflowers and flax on his 240-acre farm. This year he wants to plant 80 more acres of sunflowers than that of flax. How many acres of each crop does the farmer ...

*March 31, 2009*

**Science**

why is it a?

*March 31, 2009*

**Science**

Which fact provides the best evidence for the scientific theory of the evolutionary development of life on the earth? a. fossils are found almost exclusively in sedimentary rocks b. characterisitcs of simpler forms of life can be found in more complex forms of life c. only a ...

*March 31, 2009*

**Science**

Is it true that the age or vertabrates were in the Paleozoic era, the age of reptiles in the Mesozoic era, and the age of mammals iin the Cenozoic era?

*March 31, 2009*

**Science**

what evolved during the precambrian time period?

*March 31, 2009*

**French**

How would you use the word "gros" in french for masculine, plural?

*March 31, 2009*

**Math**

There 1170 students in a school. The ration of girls to boys is 23:22. The system below describes relatioonships between the number of girls and the number of boys. g+b=1170 g/b=23/22 a. what's the proportion for g when you solve it? b. how do you solve the system?

*March 30, 2009*

**Math**

how do uyou solve this by defining variables and using substitution?

*March 30, 2009*

**Math**

A farmer grows only sunflowers and flax on his 240-acre farm. This year he wants to plant 80 more acres of sunflowers than that of flax. How many acres of each crop does the farmer need to plant?

*March 30, 2009*

**Math**

thx

*March 30, 2009*

**Math**

For this system, is the ordered pair a solution of both equations?How do you know? (5,1) y=-x+4 y=x-6

*March 30, 2009*

**Science**

I google imaged "food webs",and the first picture is good.

*March 28, 2009*

**Math**

no, i've just decided that there's something wrong with this question.

*March 28, 2009*

**Math**

i think you're right..thank you

*March 28, 2009*

**Math**

Why is it D?

*March 28, 2009*

**Math**

Point (k,3) lies on the line whose equation is x-2y=-2. What is the value of k? a.-8 b.-6 c.6 d.8

*March 28, 2009*

**earth science**

Here's what I found on the internet: Deep-ocean trenches are long and narrow, and are the deepest segment of the ocean.Some deep-ocean trenches reach depths greater than 11000m.Most are located in the Pacific Ocean.Earthquakes and volcanic activity are common in these ...

*March 28, 2009*

**Math**

thank you!

*March 28, 2009*

**Math**

why is it D?

*March 28, 2009*

**Math**

When Albert flips open his mathematics textbook, he notices that the product of the page numbers of the two facing pages is 156. Which equation could be used to find the page numbers that Albert is looking at? a. x+(x+1)=156 b.(x+1)+(x-2)=156 c.(x+1)(x+3)=156 d.x(x+1)=156

*March 28, 2009*

**Math**

ok thanks

*March 28, 2009*

**Math**

which one is the right answer??

*March 28, 2009*

**Math**

thank you

*March 28, 2009*

**Math**

then is the answer 8, because it's 1/2(4)(-2)^2?

*March 28, 2009*

**Math**

What does (-2)^2 equal to?

*March 28, 2009*

**Math**

or is it (-2^2), because the exponent is part the base..

*March 28, 2009*

**Math**

When you substitute y for -2, what do you get?

*March 28, 2009*

**Math**

If x=4 and y=-2, the value of 1/2xy^2 is..? i think it's 8.

*March 28, 2009*

**Math**

Jordan and Missy are standing together in the schoolyard. Jordan, who is 6 feet tall, casts a shadow that is 54inches long. At the same time, Missy casts a shadow that is 45 inches long. How tall is Missy?

*March 28, 2009*

**French**

Are you sure there's supposed to be a dash in "le volleyball"?

*March 28, 2009*

**French**

when you say volley ball in french, is it "volley"?

*March 28, 2009*

**french**

when you say "nice" in french, are you supposed to use sympa or sympathique? How do you say 1."Tennis is as fun as volleyball?" 2. "The chair is not bigger than the refrigerator?

*March 27, 2009*

**english**

i think cheetah is the noun.

*March 26, 2009*

**Social Studies**

When Chinese immigrants in the 1800s moved to America, were most of them happier here than in China?

*March 26, 2009*

**Math**

These are two equations: 1)y=|x|-3 2)y=|x|+3 a. Which equation translates the parent graph _ units up? b. Which equation translates the parent graph _ units down?

*March 26, 2009*

**Math**

Explain how the translations of y=|x|+k as k changes are similar to translations of y=mx+b as b changes.

*March 26, 2009*