Friday

April 18, 2014

April 18, 2014

Total # Posts: 1,513

**math**

what is a radical in math terms.

**Algebra II**

When the range of the function is f(x) = 3x-5 when the domain is {-3, 0, 4}????

**AP World History**

I am writing a DBQ. Is it bad to state which document that I am getting my information from? ex. ...(doc 3)

**please check.**

this is the question, gather the like terms. 8m -7 + 12- 15 and i got 8m= -2. is this right? if not wat do i do wrong?

**Math**

can you help me on this problem;; here is the problem, solve the equation. remember to gater like trems. FIRST!! k-5 / 6 = -7 ?

**math.**

please help. the question is, How many degrees in a triangle which is 180 degrees, quadrilateral 360 degrees ?? is that right. =]] and i need help on the 11- gon ? 20- gon? and it says what is the formula??

**2 questions. for math.**

9 x 9 = 81 silly =]]

**2 questions. for math.**

i don't know. my answer would be 81 / 4 = 20.25 ?? it doesn't make since though??

**2 questions. for math.**

i have another question about squares? the question is, a square has an area of 81 square feet. what is the length of each side? i don't really know because it doesn't show the width so i can't do w.l ?? what do i do?

**2 questions. for math.**

thank you,would it be 8cm?

**2 questions. for math.**

I have a question. can you help me. The question is, Find the side length of a square that has a permeter of 32cm? im not understanding the part where it says find the side length. because to fing the area you need to do width x length. so how do i get the perimeter?

**please help.**

I am working on graphing. i do not need help on graphing i need to know what 1. reflect in the x- axis 2. dilate a scale factor of 1/2 please answer my questions oh and the numbers are a= (-2,4) b= (0,2) c= (-2, 6-) for both of the questions.

**please check**

5 x < - 25 can you check. 5x<-25 25 -------- 0 so that equals x < 0 and i have a question is my teacher trying to find a method or an answer from me?

**Math**

oh that makes it easier. thank you but im kinda still having trouble can you help? -38 > t - 46

**Math**

can you please check this problem for me, and if I happen to get it wrong. explain it? thank you =]]. -6x=54 this is the problem. -6x =54 +6 +6 x = 48 ?? is this right please respond. =]]

**MATH**

please help again. i really don't understand this math thing. 41 - a= 23.

**MATH**

please explain to me how to get the answer to this problem. must show all work. 4+j< -1 -

**General**

I just learned that my first semester GPA is a 2.4. This is pretty devastating for me since I am a junior in high school. I read a lot, I listen in class, I used to take ritalin, etc. But my ACT score is a 25. I'm afraid that because of this I'm going to have trouble g...

**think critically**

crab

**Chemistry**

i dont understand electron affinity and it isnt in our text book at all and we have a test over it tomorrow...can someone help me???

**physics**

As the period of a wave increases, the frequency increases true or false?

**Physics**

As the frequency of sound waves increases, the wavelength of the sound waves decreases true or false?

**Physical Science**

The energy of a mechanical wave depends on the amplitude of the wave true or false?

**Physical Science**

does light travel faster through glass or a vacumm?

**egyptian mummification process**

this chemical was used to embalm the organs

**AP World History**

I have to do a project that is like a ABC book for the Islamic religion. Like A is for apple, i just have to do them in islamic terms. I have everything but X and I have been all over the internet with no luck!! If you can help me out, it could be a person or anything related ...

**science**

when on a roller coster at which point is the kinetic energy and potential energy located????

**math**

2584.03 dollars

**science**

i like the idea but what kin of wheel?

**science**

what is a simple machine and i have a project where i have to build a toy that contains at lest three simple machinesand is cabable of completing a task with minimal or no human intervention details please

**Math**

c=13

**science**

i like the answer but can anyone help me invent a toy with like wood or something and what is a simple machine??

**science**

......I have a science project and i have to build a toy that contains a level and can convert potential into kinetic energy. I need help i need an example something!!!!!

**I need help with this math question**

yes thats right

**Chemistry**

How do you find the simple configuration of electons for an element?

**AP Biology**

the third control is potassium hydroxide

**AP Biology**

the third control is potassium hydroxide

**math**

the sum of Jared's age and kayla's age is 21. kayla is 5 years older than jared. How old are kayla and jared??

**Math(Algebra 1)**

Im doing math homework and having some trouble. Its called "Graphing equations", and this one is hard. It says 2x-y=7 and then I have to match it with a graph in the textbook. What do I do first to be able to match it? Please help a.s.a.p.

**physics**

A basketball player makes a jump shot. The 0.650-kg ball is released at a height of 1.90 m above the floor with a speed of 8.00 m/s. The ball goes through the net 3.10 m above the floor at a speed of 3.90 m/s. What is the work done on the ball by air resistance, a nonconservat...

**Journalism**

If blue chippers are involved, what sport is that?

**Chemistry**

The half-life of iodine -131 is 16 days. If you start with 100 gram sample, how many half-lives have past when you have less than a gram left?

**Chemistry**

The half-life of iodine -125 is 60 days. What fraction of iodine-125 would be left after 180 days? my teacher didnt teach us this and expects us to know it and I dont understand!!! could you explain it please!?

**Algebra II**

Solve the following system. Then explain what your answer means in the context of the problem. 3x+3y=-15 x+y=-4

**AP World History**

How did Roman military orientation and success in war with Carthage contribute to the instability of Roman politics?

**Algebra II**

15=6-3/4p+9/ the parenthesis mean absolute value

**Chemistry**

which is a strong electrolyte KCl or HCH3OOH

**Chem**

A compound that dissolves in water to form an aqueous solution that is an excellent conductor of electricity is always present in the solution as -covalent molecules -acid molecule -base molecule -salt molecules -ions

**Chem**

Which of the following is weak electrolyte in solution -H2S -H2SO4 -HI - HNO3 - HCI

**Chem**

Which of the following compounds is insouluble in water? - (NH4)2CO3 - AgBr - CuSO4 - KI - LiNO3

**Chem**

but wouldnt mmHg be 760 per 1 atm not 763 on my homework

**Chem**

torr to atm do you have to convert this or is torr just another name for atm and if so what is the conversion

**Chem**

So it would just be 9.27 no 10^ power

**Chem**

How many moles of silver are contained in 1.00kg of silver 1.00 kg(1000g/1 kg)(1 mol/ 108 g Ag) = Answer 9.26 would this be correct or would it have like a 10 ^ ____ ????

**Chem**

would lead nitrate make a soluble

**Chem**

A precipitate is expected when an aqueous solution of porassium iodide is added to an aqueous solution of

**Chem**

When an aqueous solution of lithium chloride is mixed with an aqueous solution of ammonium sulfate ______. A. a precipitate form B. a new salf is formed C. a gas is evolved D. an acid and base are formed E. no reaction occurs

**MATH HOMEWORK I NEED HELP**

CAN SOME ONE HELP ME ON MY HOMEWORK!!!!!PLZ

**Math Help**

yes I am

**Math**

8 / (over) x-3 > 6 / (over) x-1 = like a fraction bar

**Math**

solve the inequality 8/x-3 > 6/x-1

**Flash-card maker?**

vocabulary

**Flash-card maker?**

qefefefwef

**physics**

A satellite is in a circular orbit around an unknown planet. The satellite has a speed of 1.55 104 m/s, and the radius of the orbit is 5.50 106 m. A second satellite also has a circular orbit around this same planet. The orbit of this second satellite has a radius of 8.70 106 ...

**physics**

i did the same thing david did and gor the wrong answer please help me

**physics**

A satellite has a mass of 5850 kg and is in a circular orbit 3.8 105 m above the surface of a planet. The period of the orbit is two hours. The radius of the planet is 4.15 106 m. What is the true weight of the satellite when it is at rest on the planet's surface?

**Chemistry**

I understand that I already did the lab... these are the results from the lab.... I did two trial I am having trouble finding the volume of O2 STP and the mole STP what do I use to figure out those volumes

**Chemistry**

The things I posted later are all the info I have to figure out the questions I need answered ..

**Chemistry**

Data:O2 gas production Tria1 Trial 2 Mass of tube and contents prior to O2 production (g) 24.5196 g 24.4328 g Mass of tube and contents after O2 production (g) 24.4315 g 24.3513 g Mass of O2 generated (g) 0.0881 g 0.0815g Moles of O2 generated(mol) 0.00275 mol 0.00255 Temperat...

**Chemistry**

Data:O2 gas production Tria1 Trial 2 Mass of tube and contents prior to O2 production (g) 24.5196 g 24.4328 g Mass of tube and contents after O2 production (g) 24.4315 g 24.3513 g Mass of O2 generated (g) 0.0881 g 0.0815 g Moles of O2 generated (mol) 0.00275 mol 0.00255 mol Te...

**Chemistry**

How do you find the -Volume of O2 at STP -Volume of 1 mole of O2 at STP

**Math Help**

That was one of the answers it was a multiple choice question so I think you are right too Thanks

**Math Help**

Poll of statistic students revealed that 44% study alone, 31% study in a group, 12% study both alone and in a group Find the probability that a randomly selected statistic student studies alone but not in a group.

**Please help in english**

An adverb that comes right before the verb is an "adverb exception"

**Science**

Some pros of allowing more mineral explorations and mining on public land in the US is that it could lead to finding more natural resources. A con is that it could damaged natural resources such as plabts and animals. This could lead to extinction if it gets really bad.

**math**

Jacob walked three blocks to pings house, then five blocks to jamals house. Write a sentence to show that the distance from pings to jamals is the same as the return walk home. Name the property illustrated in your sentence.

**Algebra II**

37.1

**Algebra II**

If A is 35% less than B and if C is 75% more than B. What percent of C is A?

**Algebra 11**

A Miracle

**social studies**

i have streets but no pavements,i have cities but no buildings,i have forests but no trees,i have rivers but no water. WHAT AM I a map fits

**social studies**

what are the 3 causes of the holocaust? purification-Hitler wanted to purify the world to be like Germans. He wanted pepple to have blond hair and blue eyes. He wanted to create the "perfect race." getting rid of political enemies-The first people that were killed be...

**titrations**

I have to find the correct acid-base indicator to use for the following titrations (methyl orange with end point @ pH 4, bromthymol blue with end point @ pH 7, or phenopthanlein with end point @ pH 9). I have several problems given to me, but first I'm trying to figure the...

**Acid-Base chem**

Which of the following would for a buffer if added to 250.0 mL of .150 M SnF2? a).100 mol HCl b).060 mol HCl c).040 mol HCl d).040 mol NaOH e).040 mol HF I figured I could find out the pH of the solution with HCl/NaOH/HF added, and then find the pH when equal amounts of H+ and...

**A.P. Lit**

Anyone want to revise? Brains vs. Brawn

**Socail Studies**

what is a constitutional monarchy?

**Science**

Who discovered/named the first case of melanoma and when was it? http://www.ncbi.nlm.nih.gov/entrez/query.fcgi?cmd=Retrieve&db=PubMed&list_uids=11149783&dopt=Abstract

**spanish**

what does this mean...recibe pesos mexicanos... Thank you for using the Jiskha Homework Help Forum. Here are all the possibilities: 1. he/she/it/you-formal-singular receive(s), does/do receive, is/are receiving Mexican pesos.. (3 possible English translations for the Present T...

**Math Ratio Question -Need A Quick Reply**

CAN SOMEONE HELP M3 IIT SAYS TH3 SEVENTH-GRADE CLASS AT ANARENE MIDDLE SCHOOL SOLD 13 20TH OF THE CORSICANA FRUITCAKES THEY BROUGHT WHICH DECIMAL IS EQUIVELENT TO THE FRACTION SOLD? THE ANSWERS ARE A.65 B.0.65 C.6.5 D.650

**algebra 1 scale drawing**

That is what i am working on and can't figure out

**Social Studies**

I am studying the Federalist Papers. I am having a hard time understanding them. Is there a website that will help explain them easier? Here are some websites that may help. http://www.law.ou.edu/hist/federalist/ http://en.wikipedia.org/wiki/Federalist_Papers There are many on...

**Math**

I need help simplifying radicals. The problem in priticular is the square root of 60x^2 √60x^2 can be simplified this way: √(4 * 15 * x^2) Can you see what to take out from under the square root sign? √4 = 2 and √x^2 = x Therefore, we end up with this: ...

**English**

Can anyone help me with analogies? Please post specific questions and include what YOU think the answer is. Then someone here will give you feedback. Thanks. =)

**math**

suppose you are in a room that has two identical doors. Behind one door is riches, wealth and fame beyond your wildest dreams. Behind the other door is a firing squad that does not miss. Youdo not know which door is which, however there are two identical twins in the room that...

**help...solving a polynomial....algebra**

solve this please....help me....12x(squared)+7x-10 Do you wish to factor this trinomial? If so, the factors are: (4x + 5)(3x - 2) You can use the FOIL method to check. If this is supposed to be an equation: 12x^2 + 7x - 10 = 0 ...then set each factor equal to 0: 4x + 5 = 0 3x ...

**Algebra**

how do you solve this equation...its a polynomial...help please What is the equation

**JUST HELP ME**

ok i have to write a constitution and i have everything i want on it but i need to know how to put it in constitutional form please help TAYLOR Graves Make an outline. THen in the outline organize it by function: executive legislative judicial

**chemisry**

How many grams are thee in 2.3times 10to the 23 power What units are you measuring with 2.3 * 10^23? Are they pounds, ounces, kilgromas or something else? Without this information, it is impossible to answer your question. Please repost with the needed information, so we can h...

**Science**

Why is Al Gore's film titled, "An Incovenient Truth" "An Incovenient Truth" was a great movie in my opinion, titled this way because it's about the real dangers of global warming. Scientists say that we could suffer the greatest storms, droughts, an...

**SCIENCE**

1. WHAT IS resonance 2. whAT to frequncy of a sound when a car approaches How is resonance used? One kind of resonance is chemical resonance in which several structures can be drawn to represent a compound an the "real" structure is a hybrid of all of the possible st...

**Chemistry**

Why do beryllium and fluorine combine in a 1 : 2 Ratio? Be is in group 2 (or IIA). F is in group VIIA (or 17 depending upon what system you are using). Therefore, flourine needs one electron to fill its outside shell. Be has two in its outside shell to give. So Be gives an ele...

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