Amy

This page lists questions and answers that were posted by visitors named Amy.

Questions

The following questions were asked by visitors named Amy.

What does distance/ time/ rate of speed mean? It's all one word!!!! Please Help!!!!!! I looked in the dictionary, on the internet nothing It might be acceleration, but I'm not sure; distance/time is velocity. If it means rate of change of velocity then it...

A solution of the sugar mannitol ( molar mass 182.2 g/mol ) is prepared by adding 54.66 g of mannitol to 1.000 kg of water. The vapor pressure of pure liquid water is 17.54 torr at 20o C. Mannitol is nonvolatile and does not ionize in aqueous solution. a....

The value of the marginal propensity to save is 0.2. If real GDP increases by $50 billion, this situation was the result of an increase in the aggregate expenditures schedule of: a. $10 billion b. $15 billion c. $16 billion d. $40 billion Take a shot. Hin...

If a government raises its expenditures by $50 billion and at the same time levies a lump-sum tax of $50 billion, the net effect on the economy will be to: a. increase GDP by less than $50 billion b. increase GDP by more than $50 billion c. increase GDP b...

An expansionary fiscal policy can be partially offset by a(n): a. increase in aggregate demand b. increase in aggregat supply c. depreciation of the dollar d. decrease in net exports

Which combination of fiscal policy actions would be most contractionary for an economy experiencing severe demand-pull inflation? a. increase taxes and government spending b. decrease taxes and government spending c. increase taxes and decrease governmnet...

What election year saw bumper stickers reading "Wallace, Wallace, Uber Alles"? Please help. Have no clue. http://www.triviaplaying.com/

I'm trying to find a website that has a reader's theater script dealing with music. Rock music would be great, but music in general is at least a starting point. I've tried searching, but I can't find anything music-related. Help? Thank you for using the...

A student proposes to use visible spectroscopy to measure the kinetics of the permanganate/oxalic acid reaction. The initial permanganate solution was very dark. For a 1 cm sample cell, the absorbance A = 2,500[MnO4]. As a practical rule of thumb, Beer's...

My nine year old does not seem to understand when to use each kind of measurement, such as centimeter, meter, kilometer, foo, mile, and inches. My husband and I tried to explain but I think we confused her more. Do you have a suggestion or guideline to he...

completely factor : z^6-z^2

factor completely: z^6-z^2

16 years = ? seconds

3x^2+20x+12 if that ^ represnts the area of a rectangle, find two binomials that can represent its dimensions

x^2= 6x+11 solve the quadratic equation for values of x expressed in simplest radical form

Between 1500 and 1000 BCE, Crete, Greece and many other Aegean islands were invaded by the : a) Assyrians b)hellenes c)spartas d) persians

What are examples of insolubles?

d^2+8 - 8-d ____________ d^3-d d^3-d i have the answer 1 over d-1 but i don't no how to show the work

if a sample of cough syrup has the mass of 50.0g and a density of 0.950 what is the volume

d^2+8 8-d ------ - ------ d^3-d d^3-d

7 - 6 -- ----- y^2-49 y^2-2y-35 with work if possible please

2m + 1 ---- ---- 6m-3 3-6M

2Y-1 p-1 ----- - ---- 2y+5 p+3

if the levels of liquids are mercury, sugar, corn syrup and water and a sugar cube is dropped in where would it land? what would happen to the sugar cube over time?

I cant figure out this problem. A pool is rectangular in shape, with a half-circle at one end. The length is 80 feet; the width is 30 feet; depth is 4ft the half-circle is appended to one of the thirty-foot sides, so that end is curved. Find the surface a...

the square root of 8/3 + the square root of 2/3

SQUARE ROOT of 8/3 + SQUARE ROOT of 2/3

what is the solution set of : x^2 + 9 = 0

To what extent do sociologists agree that an underclass exists in britain ?

What is the meaning or origin of the symbolf of dentistry. It's the triangle and circle with a snake wrapped around a pole.

1)Top-fuel drag racers are able to uniformly accelerate at 12.3 m/s2 from rest to 98 m/s before crossing the finish line. How much time elapses during the run? 2)A racecar accelerates from rest at +7.2 m/s2 for 4.1 seconds. How fast will it be going at th...

Can someone please check my answers for the first three questions and help me with the last one? 1)A racecar accelerates from rest at +7.2 m/s2 for 4.1 seconds. How fast will it be going at the end of that time? Answer: 29.5 m/s 2)A racecar starts from re...

Can someone check my answers for the following questions. Thanks you. 1)A hockey puck's average velocity is 22 m/s. What is its displacement after 6.0s? Answer: 132 m 2)It is 0.30 seconds after seeing a puff of smoke rise from the starter's pistol; the so...

I need help how do you solve these types of equations 3x2power-27=0 2t2power=100 -4y2power=36 please help me and tell me how you got it.

I've been trying to figure out this equation for over an hour but all the answers I get are wrong. The equation is 0.9=-10I^2+6I . The answer is supposed to be 0.3 and it does work out, but I have tried all different ways to solve for I and nothing seems...

Use these functions: f(x)=3x-2 g(x)=2 h(x)=4x 1. What is f(g(x))? 2. What is g(18)? 3. Find h(5).

I just need one idea. Is there anything about the classical period in Rome and Greece (5th-4th Centuries BCE) that could apply to the Classical period in Music (1750-1830)?

How do you find the pH of a 0.2M HCL?

I saw that this was posted earlier but i can't find the previous one with the answer. Please Help. I don't understand how to make this equation work The total pressure in a flask containing air and ethanol at 257C is 878 mm Hg. The pressure of the air in...

please help I can't get these lost few words thank you I need the prefix and suffix and the Combining form for each word if there is one thank you so much ahead of time for your help Etymology Mastectomy Neuroma Tachycardia Endotracheal

please help I can't get these lost few words thank you I need the prefix and suffix and the Combining form for each word if there is one thank you so much ahead of time for your help Etymology Mastectomy Neuroma Tachycardia Endotracheal

How do you do a word cited page? please help me so confused. Paper due tomorrow. Thank you

Could you help me complete these equations. I can balance them after NaOH (aq) + HI (aq) ---> LiHCO3 (aq) + HI (aq) ---> HCl (aq) + NaHCO3 (aq) --> Na2CO3 (aq) + HBr (aq) --> HNO3 (aq) + KHCO3 (aq) --> HBr (aq) + NH3 (aq) ---> HNO3 (aq) + Ca(OH)2 (aq--->

In sequential order how does our body digest a crakcer. I was wondering if someone could please let me know if there is a web-site that may be able to help me thanks

You told me the steps on a previous post but i must have forgot how to work out absorbance or ICE cus i keep getting the wrong answer ... The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M KSCN) has a...

This is what i posted up a while back... i got to a using 0.520= a (.202M) and got a= 2.57 but now i don't know where to go from there with the ICE The standard solution of FeSCN2+ (prepared by combining 9.00 mL of 0.200 M Fe(NO3)3 w/1.00 mL of 0.0020 M K...

In the reaction of hydrogen peroxide with iron (II) ion in acidic solution to form iron (III) ion and water, the oxidizing agent is____ is it hydrogen peroxide? cus its not water right?

Dr. bob could you please check this work cus i can't seem to get it right the first step of the synthesis is described by the reaction below. When 1.750 g of Fe(NH4)2(SO4)2 6H2O is mixed with 13 mL of 1.0 M H2C2O4, the theoretical yield of FeC2O42H2O is ?...

Are the stories of"The Three Faces of Eve" and "Sybil" positive visions of multiplicity? I have to write this in APA style and I'm not sure how. Please help.

3. How much 0.10 M Base (in mL) is required to neutralize 8.00 mL of the 0.10 M acid? Base Acid Base Volume (mL) NaOH HCl ____________ NaOH HC2H3O2 _____________ 4. How would the volume of base change from problem three if the 8.00 mL of 0.10 M Acid was f...

How much 0.10 M Base (in mL) is required to neutralize 8.00 mL of the 0.10 M acid? Base Acid Base Volume (ml) NaOH HCl ___________ NaOH HC2H3O2 ___________ How would the volume of base change from the problem above if the 8.00 mL of 0.10 M Acid was first...

What is the pH of the solution created by combining 2.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? mL NaOH pH wHCl pH wHC2H3O2 2.30 ________ _________ What are the pH values if you take into acco...

I posted this yesterday and tried to work it out today but i don't remember how to. You said convert to moles by multiplying for example .1M x .008L= 8x10^-4 ...after this what do i do with this number to find the pH i tried to just plug that into the -lo...

What is the pH of the solution created by combining 11.10 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? This is exactly like what Dr Bob has shown me on the first problem i put here and yet i get this simple one wrong... Here are my steps:...

What is the pH of the solution created by combining 11.10 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HC2H3O2(aq)? ok Dr. Bob so here's the work NaOh: .00111 Acetic Acid: .0008 Salt produced: .00111-.0008= .00031 Concentration of salt: .00031/.01...

The solubility of product constant (ksp) for the dissolution of Pb3(Aso4)2 as represented by the chemical equation is 4.0 x 10^-36 Pb3(AsO4)2 (s)--->3Pb 2+ (aq) + 2 AsO4^3 (aq) Calculate the molar solubility (mol/L) of Pb3(AsO4)2 in water

For the following balanced equation: 2 Ag+ (aq) + Cu(s) ---> Cu2+ (aq) + 2 Ag(s) Which letter corresponds to the correct cell notation at standard state conditions? A. Cu2+(aq)/ Cu(s) // Ag(s) / Ag+(aq) B. 2Ag+(aq)/ Cu2+(aq)// 2Ag(s)/ Cu(s) C. Ag+(aq) / C...

For the following electrochemical cell: Fe(s) / Fe2+(aq) // MnO4–(aq) Mn2+(aq) / Pt(s) Which letter corresponds to the correct balanced chemical equation in an acidic solution? A. 5Fe(s) + 16H+(aq) + 2MnO4–(aq)--> 2Mn2+(aq) + 8H2O(l) + 5Fe2+(aq) B. Fe(s)+...

Which reaction has been chosen as the 'standard' against which every other reaction is measured? A. F2 + 2e ---> 2F– B. O2 + 4H+ + 4e ---->2H2O C. 2H+ + 2e---> H2 D. Li+ + e ---> Li E. H2 + 2e --->2H i got C is that right?

Why does the equivalence point occur at different pH values for the four titration studied? the four titrations were: 1. HCL with NaOH 2.HC2H3O2 with NaOH 3. HCl with NH4OH 4. HC2H3O2 with NHOH Okay so equivalence point is when the number of moles of acid...

I need to calculate the Ka of the acetic acid from two titration curves involving acetic acid. Then report the % error in each how do i go about this? what values do i need to know?

For which trial(s) is phenophthalein a good indicator? For which trial(s) was it a poor indicator? For those trials in which it was a poor indicator, suggeest a better indicator and indicate its pH range on the titration curve. So for phenophthalein the e...

I am having a hard time with this integral question. Can someone show me how to do this. Thank you. Evaluate the indefinate integral x^2(3x-1)dx

) Choose the correct integrated rate law for each reaction order. (Enter only the letter to the left of the correct response.) Reaction Order Answer zero d first c second a a. l/[A]t = kt + l/[A]0 b. log[A]t = kt +log[A]0 c. ln[A]t = –kt + ln[A]0 d. [A]t...

Choose the correct variables that will create a linear plot for each reaction order. Reaction Order / Answer Zero/ a??? First /b??? Second /c??? a. [A] vs time b. ln [A] vs time c. l [A] vs time d. log [A] vs time e. [A] vs (time)^2

The rate constant, k, for each reaction order is equal to _____ from the linear plot. zero ---d first----d second-----a a. slope (m) b. y-intercept c. x-intercept d. negative of the slope (-m) e. 0

The absorbance values At & A0 recorded in the experiment 'Rate Law Determination of the Crystal Violet Reaction' are used in the place of the concentration values of which species? A. –OH B. CVOH C. CV+ D. Na+ E. H2O I'm pretty sure this is CV+ right?

Last week i did a lab and i just wanted to show you my results because my computer was acting weird when i used the voltage probe.(I just needed you to check that the cathode and anodes and voltages make sense) CuSO4(cathode)and Al2(SO4)3 (anode)--[0.050V...

Help! The novel "Strange Objects" by Gary Crew. I'd like to know`why it's so popular? (This is for a speech)

Emil is shopping for a convertible. He plans to test drive three cars, a Toyota, a Honda, and a Mazda. He also wants to test drive both the 5-speed standard and the automatic transmission in each, but the Mazda isn't made with an automatic transmission. H...

I forget this but what is the topic sentencea and what is it suppose to discibe. thank you for your help

who was the 27th president?

Use the Midpoint Rule to approximate the integral from 7 to 17 (1x-1x^2)dx with n=3

I have some homework questions that i am having problems finding. Please help! 1. What is the value of math to science? 2. What is the value of using graphs to represent data? 3. How do units give numbers meaning and help verify correct formulas? 4. Why a...

This is silly, really. What is the possessive form of class? Is it "center of the class’s attention" or center of the class' attention"? I think it's the first one, but I don't know for sure. Thanks!

Prove: If Z and W are complex numbers, then the conjugate of (Z+W) is equal to the conjugate of Z plus the conjugate of W. My thought is that this is kind of like the distributive property, but I'm not sure. It doesn't help that I haven't written a proof...

How do I write an introduction paragraph for a expository essay? I have my thesis statement but I need to write an introduction. I don't want someone to do it for me, just some guidance if possible... Thank you

Hi Just wandering When I factorise the following : 4s-16t+20r It will equal to 2 ( 2s - 8t + 10 r ) This was the answer in the book However , I managed to factorise it to become : 4 ( s-4t+5r) is this correct ? Because when you multiple it out , it gives...

I'm having problems with my homework , I keep getting the wrong answers can anybody help me with lesson4 poetry,part1#10-15

During the Romantic period, poets placed an emphasis on?, Which one of the following words is an iamb?ARachel, B Alice, C Joanne.....

Suppose triangleABC ~ triangleGHI with scale factor 3:5, AB = 9, BC = 18, and AC = 21. Find the perimeter oftriangleGHI.

If m<A=35 and m<B=55, what is the truth value of the conditional q-> ~r?

2cosx + 1 = 0 solve the equation for solutions in the interval : 0 < x < 2pie those are less than or equal too signs

find the area of a triangle w/ sides 4x, 5x and 7x Round to the nearest hundredth thanks for your help

solve the equation for the interval 0<x<2pie cos^2 x + 2cosx + 1 = 0

I need to construct a 75 degree angle. I was thinking I could get a 45 degree angle by drawing a right angle and bisecting it, but I'm not really sure on how to get a 30 degree angle. Am I going about this wrong?

ok i need help with these questions i have been trying to figure them out and my brain isnt working. please help and thank you ahead of time. if you can help. 4. Q.write and algebraic expression for the product of 15 and c A. IS IS C-15 16. Q. define the...

wat does equotion mean

please help thx 16-3(8.3)^2-5 and please show me steps thx. i have it figure out but i want to know if its correct thx

was barrack obama the first African American to run for president if not who was it please help and many thanks

please correct these for me 18. the number of quarts you use to paint your room (are whole numbers or integer or rational number the most reasonable for this situation) A. yes 24. us <=> to compare 2/4 1/6 is it = 36. find the absolute value -4/14 is it -...

Is "Be seated" a sentence.

plese see if they are correct thx a million 16. the product of a number and twelve A. x^y*12 25. Name the sets of numbers to wich the number belongs 35/5 i don't even understand this one plse hlep

Answers

The following answers were posted by visitors named Amy.

z^6-z^2 ------ factor completely

How do you spell Com ce com ca? Thanks Amy

Is there a website that lists some of the omens that foretell the conquest of mexico

what are the steps (in order) for passive transport.

oh, okay, I see what you're doing. I just have one question, though;why is it that when you get rid of the -10, the 6 is affected by it? I would assume that it would be left alone...

oh, I forgot to thank you, so thank you very much!

oh, that makes it so much easier! Thank you so very much, it all makes sense now! :D

oh, no wonder nothing worked out; thanks!

So the answer for #1 is 4 the answer for #2 is 2 and the answer for #3 is 20?Are you sure because I have a lot riding on this assignment.

car care , paint shops, Dealerships or car insurence stuff like that maybe

thank you so much

I agree with you that project does not make any sense and I feel it should be product. Everyone else thinks so too, but we were told the question is written correctly. We don't understand it either, we think it is a trick question. Thanks for your help I...

Na2CO3 (aq) + CuCl (aq) -->

THANK YOU SOOOO MUCH!!

nevermind i got it

???? are u in my class

inquired is to replied as praised is to...

i don't know why but the rest of my question isnt coming up

thank you. for the second part the increase in volume should not affect the number of moles right? so would i put no change?

its two sorry the whole thing that i wrote didn't show up again. What is the pH of the solution created by combining 2.30 mL of the 0.10 M NaOH(aq) with 8.00 mL of the 0.10 M HCl(aq)? with 8.00 mL of the 0.10 M HC2H3O2(aq)? Here is the chart that i am sup...

so for the acetic acid it would be the same things for the moles right? because the NaOh doesn't change it is still 2.3 ml and then 8ml of acetic acid x .0008 L= .00023 mol also. then do we jus plug that into the Henderson equation? pH= pKa +log (NaOh)/(a...

Ok so this is what i have so far... moles NaOh: 0.00023 moles acetic acid: 0.008 how much salt is produced: .008-.00023= .000777 concentration of salt: .00777/.0103= .754 acetic acid that is unreacted: .008- .00777=.0023 concentration of acetic acid: .002...

k so i put 1.79 and 1.18 and the system still says its wrong.

alright i got this one.. thank you

wait.. im doing it again and getting this wrong.. just what did i need to correct again? are all my steps okay i just need to change my moles Acetic acid value? or is something wrong.

wait WAIT I GOT THE RIGHT ANSWER.. woooooooooooooooooooooooooooooo hoooooo thank you again.

yea i got 4.35 :)

this is the second part of the same problem ... What are the pH values if you take into account that the 8.00 mL of 0.10 M Acid was first diluted with 100 mL of water (like it will be in the experiment you perform in lab)? How do we go about this one? do...

ya im exhausted too i went straight to theses questions right after school. are u gonna be on here tomorrow? cus i need help on like 3 more :)

oh my we got that answer last night too i didn't know it would be the same thing as HCl or else i wouldn't have asked. i just tried to do what we did for the acetic acid last night. but i got it now and thanks to what you taught me about the dilution stuf...

nevermind i got it :)

'Loudness' is a word (it's in the dictionary, I promise). You could also use 'intensity' or 'volume.'

I don't think this is a question with textbook answer. It's an opinion. So here's mine: I think you have to look at it both ways. World music reflects the culture of the region where it originates. It is normal to the people who live there because it is f...

yea i just forgot the space in between sorry For the following electrochemical cell: Fe(s) / Fe2+(aq) // MnO4–(aq) Mn2+(aq) / Pt(s) Which letter corresponds to the correct balanced chemical equation in an acidic solution? A. 5Fe(s) + 16H+(aq) + 2MnO4–(aq)...

so part 2 will be B?

you can try this.... so f'(x)= -8x-3/(1+ xy) Plug in 10 for x and 2 for y (-8(-10)-3)/(1+(-10)(2)= -3.66667

So part 2 is D and part 1 is A jus making that clear...

What reaction is occurring at the cathode? A. 5e– + 8H+(aq)+MnO4–(aq)---> Mn2+(aq) +4H2O(l) B. Fe(s)---> Fe2+(aq) + 2e– C. Mn2+(aq) + 4H2O(l)----> 5e– + 8H+(aq) + MnO4–(aq) D. Fe2+(aq) + 2e– --->Fe(s) E. Pt(s)---> Pt2+ + 2e D doesn't have electrons on the...

Trial 1: NaOH (titrant) and acetic acid pH at equivalence is: 8.14 Ph at endpoint is: 7.78 Volume of Titrant: 14.6 mL Volme of Titrant at endpointL 13.8 Halfway point to equivalence point: 112 sec/2= 56.o sec pH at this point is 4.80 Trial 2: NH3 (titrant...

whoa ummm we only used one indicator phenolphthalein in fact the question also asks for which trials that the indicator we used as a good one and for which it was poor. i came to the conclusion that it was good for the first two which was HCl and NaOH and...

so was i somewhat right? I have to write this for a lab report that's why

My partner as in charge of writing all the points and i think she messed me up somehow. but yea we had a timer... we used a computer program that showed the titration curve ph vs time in sec. The pH was read using the curve. The volume of titrant is just...

ok so in steps, how do i break that up to write... so you're saying for Trial 1: Calculate the Ka I just uses the half way pH that i found for both and do the -log to get the ka values? so for example Trial 1: = -log ( 4.80) = ?? im not getting the answer...

oh my sorry... i have to do the 10^(-pH). Ill post what i get post that you can check

so for trial one i got : % error of 12.222--> 12% ka= 1.58x10^-5 from 10^(-4.80) trial two: % error of 10% ka= 1.62x10^-5 from 10^(-4.79)

are you sure it's to the -6? i keep on getting to the - 5

are you on here during the weekends also by the way? because I was going to go through the other lab questions and come here for clarification hopefully.

Why does the equivalence point occur at different pH value for the four titrations studied? ( Hint: what species are present at the equivalence point for each trial) So the answer would be that it occurs at different pH values because equivalence point fo...

It's okay i caught it. Thank you so much. Umm i put something new on the previous question that i had i dunno if you saw it or not.

also how do we determine whether or not an indicator is the good one to use for a trial? I know that phenolphthalein turns to pink 8.3-10.0 pH so that means that it's good for the equivalence points in between those?

ok goodnight I'll talk to you tomorrow. Thank you again!

Choose the correct integrated rate law for each reaction order. (Enter only the letter to the left of the correct response.) Reaction Order Answer zero ______ first _______ second _______ a. l/[A]t = kt + l/[A]0 b. log[A]t = kt +log[A]0 c. ln[A]t = â€“kt...

okay its not showing up again. blah.

oh yea sorry about that i solved the one that i posted about last

yea it is thanks i got this one i have a couple more that i don't know

hey isnt it -3.40

Thanks! One more question: Prove: Let z be a complex number. Show that z is an element of the real number set if and only if the conjugate of z is equal to z. My teacher said there would be two things to prove from this since it was an "if and only if" pr...

BobPursely gave this equation: x + 2x+3 + 3x+1= 9x+11 If you only look at the left side, you'll get 6x + 4. Your new equation should read: 6x + 4 = 9x + 11 Does that help?

Draw a picture. Make a big rectangle that has dimensions 60x100. Inside that rectangle, make a smaller rectangle with dimensions 30x50. Based on the picture, what do you think you should do to solve for the lawn?

Ok. From here, you need to solve for x. The easiest way to do that is to get x on one side of the equation. Do you know how to do that?

Think about what this line will look like. y=-1 for every x, right? So play with the x's. Plot (0, -1), (5, -1), (-1, -1). Seeing a pattern?

Plug -6 into the original equation. You should end up with -6^2 - 5. Solve from there.

1.CH3C(CH3)double bond C(CH3)CH3 5.CH3CH2CHOHCH2CH2CH2CH2CH3

what are the 4 layers of the atmosphere?

Never mind, I think I got it. :)

thx for your help :) much apresiated

srry wrote it wrong 16-3(8-3)^2-5

thx a million :)

THX YOU SO MUCH YOU GUYS HLEP ME OUT SO MUCH :)

Thank you sooo muchh!!!!!!! :) :) :) :)

thx for correcting me. would you happen to know why the electrical charge on an atom is zero or nuetral

thx that helped me a lot

thx you so much i was so confused

Thank you Ms. Sue. I appreciate your helping me!

thx you very much bobpursley

its part of a precalc-calc class. idk? thanks though

that doesnt really make any sense

thx a million for some reason i just don't get it but know i do thx you very much

hmmm, how is that possible? I calculated it to be 0, 0, 0, 0. Just to make sure, H is singly bonded to oxygen which is singly bonded to fluorine, which is double bonded to oxygen, right? Hmm, can you explain? FC = valence e - lone pair e- 1/2bonded e. FC...

NVM! I violated an octet rule! hah!. DrBob, you're rite

This helped thanks

thx i am like having trouble with this chapter becuase are teacher asigned it and like we didn't really go over the chapter do you happen to know 4 and 5

thx any ways and good luck on your test;)

ok thxs for correcting me on that one.

Yes, number 2 is -1.667. If you rewrite number two as a mixed number, you'd have -1 2/3, right? The -1 is shown to the left of the decimal place. Knowing that, try the other two problems.

55% of 7? Take 55% (which is .55)and multiply it by 7.

lol! Thank you for the help!:)

Ok, that works for me. Sorry that I spelled it wrong. Sometimes I type so fast that I spell somethings wrong.

Thanks! Ya, I am not sure what one it is either because are teacher just said radiation.

hey, thank you!! :)

Which layer of the earth's atmosphere contains the Van Allen radiation belt?

Hello I don't know if you could help but i was wandering if you could help me with my L.A.T its due Tuesday 3rd of febuary 2009 ! The question is... Explain the reaction of Fe+S (Iron+Suplur) using the big idea of energy? Many Thanks x

thanks a whole bunch. i have just one more question how can you tell whether an equation represents a direct variation?