Sophie

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

Questions

The following questions were asked by visitors named Sophie.

How do you find the angle of FAC when: D is in the interior of <BAE E is in the interior of <DAE F is in the interior of <EAC m<BAC=130 degrees m<EAC=100 degrees m<BAD=m<EAF=m<FAC ? FAC is 40 degrees. All of these lines are linear pairs held on an 180 deg...

Hi! I would really appreciate it if you could help me think through these questions discussing Newton's Laws in Space... Directions: Consider the following scenarios ignoring the effects of gravity: 1. You are the capitan of a spacecraft traveling in the...

What would you do given the following scenarios? 1. You are the capitan of a spacecraft traveling in the far reaches of outer space, a great distance from any other body. Unexpectedly your radar indicates a meteor on a collision course with your craft, ne...

The solubility of benzoic acid in water is 2.56g in 100cm3 at 79 C and 0.29g in 100cm3 at 20 C. What is the minimum volume of water in which 1g of benzoic acid can be dissolved at 79 C? I set up a dimensional analysis but since the question gives 2 sets o...

could you put these in order of polarity please: fluorenone, fluorenol and fluorene. Thanks

do all populations- micheline tires, voters, people with high blood pressue...- produce a normal curve? True or False Is this false because all samples produce normal curves and not the populations, and don't you have to have a range of values and freeque...

Solve the following by Factoring.. 5t^2 - 10t = 0

Sove the equation in Rational form -2x - 4 < 10

solve the following equation 5x + 4y = 12 Please show work... Thank You!!!

I need help with the following problem: A fabric remnant from a burial site had a 14 C:12 C ratio of 0.838 of the original value. How old is the fabric? (half-life of 14 C = 5370 years)

The problem I have is a summation from 1 to infinity for (-1)^n/n. I have to find a partial sum that is in 0.001 of the infinite sum, my teacher says the fourth partial sum approximates the infinite sum, which is -7/12. I think to get within 0.001 of the...

Do you change them to the or those? I think it is the, but I am not sure. Later we cooked them fish and talked about the excitement of the day.

If i wanted to shorten the word phenomenal to phenoms would it be es or just s on the end.

Find the distance between P(-4,3) and the line with equation: 2x - 5y = -7 a. (14√29)/29 b. 0 c. (-16√29)/29 d. (16√29)/29 I got C but would it be positive, like D?

Find an equation of the line that bisects the obtuse angles formed by the lines with equations 3x-y=1 and x+y=-2. a. (3√2 +√10)x-(√10 + √2)y-2√10+√2=0 b. (3√2 - √10)x+(√10 - √2)y+2√10+√2=0 c. (3√2 + √10)x+(√10 - √2)y+2√10 - √2=0 d. (3√2 + √10)x-(√10 + √2)...

Find the ordered pair that represents the vector from A(-4.3,-0.9) to B(-2.8,0.2)? Then find the magnitude of AB. A. (1.5,1.1); 3.46 B. (-7.1, -0.7); 7.13 C. (1.5, 1.1); 1.86 D.(-7.1, -1.1); 7.18 I got C, is this right?

Write an equation in slope-intercept form of the line whose parametric equations are: x = (1/2)t +2/3 and y = t - 3/4. a) y = 2x - 7/12 b) y = 2x + 7/12 c) y = -2x - 7/12 d) y = -2x - 25/12 I think it is D.....?

Find sin(sin^-1 1/4) is the answer 1/4?

Find the measure of the reference angle for 400 degrees. I did the work and got 40 degrees, is this right?

If α and β are two angles in Quadrant II such that tan α= -1/2 and tan β = -2/3, find cos(α+β) Work: cos(α+β) = [ 1 - (tan α)(tan β) ] / [ 1 + (tan α)(tan β)] cos(α+β) = [ 1 - (-1/2)(-2/3) ] / [ 1 + (-1/2)(-2/3)] cos(α+β) = [ 1 - 1/3 ] / [ 1 + 1/3 ] cos(α...

For 4x^2 - 4xy + y^2 = 4 find θ, the angle of rotation about the origin, to the nearest degree? a) 27° b) 63° c) 333° d) 307° I got A, is this right?

Write the standard form of the equation of the parabola whose directrix is x=-1 and whose focus is at (5,-2)? a) (y+2)^2 = 12(x+2) b) y-2 = 12(x+2) c) x+2 = 1/12(y+2)^2 d) x-2 = 1/12(y+2)^2 I get A and D? confused!

Come up with a question to these answers. Si, de Alicante. No, es médica. No, es argentina.

Simplify: (-1-2i)+(4-6i) I get 3-8i and 5-8i... confused, which one is it?

Use the first five terms of the trigonometric series to find the value of sin pi/12 to four decimal places. a. 0.2618 b. 0.2588 c. 0.7071 d. 0.2648 I got B, is this right?

The playing times of 20 songs on a top-hits radio station are recorded in the chart below. Playing Time (minutes:seconds) 3:32 3:24 2:54 3:07 4:52 3:45 2:39 3:09 3:34 3:26 3:35 4:17 4:03 3:52 5:10 4:59 3:07 4:00 3:07 2:56 In a histogram of this data, whic...

In a random sample of 30 tires of the same type, it is found that the average life span is 36,200 miles with a standard deviation of 3800 miles. Find the interval about the sample mean such that the probability is 0.77 that the mean number lies within the...

Jen e veux pas savoir ____ est arrive. a. ce qui b. ce que Je crois _____, je vois, C'est tout. a. ce qui b. ce que I think 1 is a and 2 is b... am I right?

Part 1) Evaluate tan 7.5 Part 2) Evaluate exactly cos (-(45pi(4)))

Some interesting facts about the euro tunnel, the eurostar and the shuttle?

In how many ways can the 12 members of a volleyball team line up, if the captain and assistsant captain must remain together? Thank you in advance.

Question 1: In the Balmer-Rydberg equation, what value of m is used to determine the wavelengths of the Balmer series? m=? Question 2: List a possible set of four quantum numbers (n,l,ml,ms) in order, for the highest energy electron in gallium,Ga.

Carbon is also removed from the atmosphere during the process of weathering. carbon dioxide combines with water to form carbonic acid. this reacts with calcium silicate (in rocks) to produce calcium ions, bicarbonate ions and silicon dioxide (silica) the...

what is "5x + 7 = 22" simplified? x

Which has more area, the region in the first quadrant enclosed by the line x+y=1 and the circle x^2+y^2=1, or the region in the first quadrant enclosed by the line x+y=1 and the curve sqrt(x)+sqrt(y)=1? Justify your answer.

How many day in a leep year?

im not quite sure what to do with this problem... the info I have: -balanced equation= (CuCl2*2H20)=>CuCl2+2H2O -initial mass of copper compound: 0.94g Q: use stiochiometry to find the theoretical yield for the mass of copper (II) chloride we also used 30...

set S is composed of the square of every element of the set {-5,5}. what is S?

The greatest velocity a falling object reaches is called its what?

What happens to the rate of evaporation of a liquid after… a. a decrease in temperature b. an increase in the surface area of a liquid exposed to air c. an increase in the intermolecular forces

Determine the equation of a curve in the xy-plane that passes through the point (0, 1) and has the slope x2 sin 4x at any point (x, y) on the curve.

The tangent line to the graph of y = h(x) at the point (-6, 9) passes through the point (6, 2). Find the following values. (a) h(-6) (b)h '(-6)

Consider the following function. f(t) = 3t2 − 3 (a) Find the average rate of change of the function below over the interval [3, 3.1]. (b) Compare this average rate of change with the instantaneous rates of change at the endpoints of the interval. (at t =...

Find the derivative by the limit process. 6/√(8x)

how do you solve a problem when you have one whole # with a whole # and fraction. this is subtracting ex: 16 -10 2/7 ________________

i am doing questions and i just want to say i need help the question says ____________ affects how much moisture is in the air i don't get it

how do you say what is your favorite food in spanish

How do you solve? 3-3sinx-2cos^2(x) = 0

a 60 kg person falls off a 15 kg sled moving at 2 m/s. The person doesn't move after falling. Assuming no friction with the ice, and not other net forces acting on the sled, what is the change in velocity of the sled after the person falls off.

An isolated 3 kg object is moving in the positive y direction along the -y axis at 2 m/s; when it reaches the origin it breaks into two pieces sending a 1 kg fragment in the +y direction at a speed of 3.7 m/s. what are the velocity and direction of the ot...

How many moles of oxygen molecules, O2, are required to produce 0.268 mol of K2Cr2O7? Show your work.

a crate is pushed to the top of a frictionless inclined plane 15 m long with a force of 25 N. If the crate weighs 125 N, how high is the inclined plane? 0.5 m 1 m 3 m or 5 m

find the derivative of g(a)=sin(arcsin(9a))

find the derivative of 4x(lnx+ln9)-9x+e

find the slope of the tangent to the curve: y^2=x^3/xy

A 2.64 L container is filled with 169 g of argon. (a) If the pressure is 10.0 atm, what is the temperature? ____K (b) If the temperature is 225 K, what is the pressure? What Gas law formula would I use?

The height , in metres, of the trajectory of a football is given by h(t)=2=28t-4.9t^2, where t is the time in height of the football and the time when the height is reached

An engineer is desingning a parabloic arch, the arch must be 15 m high , and 6 m wide, at a height of 8 m a) determine a quadratic fundtion that satisfies these conditions b) what is the width of the arch at its base

Did I conjugate these correctly? 1.tomo-tome 2.tengo-tuve 3.es-fue 4.quiero-quise 5.deseo-deseé 6.dicen-dijeron

hago-hice tiene-tuvo corremos-corrimos juego-jugué son-fueron juegan-jugaron piensa-pensó pienso-pensé entienden-entendieron tienen-tuvieron andan-anduvieron patinan-patinaron corren-corrieron pescan-pescaron hacen-hicieron pregunta-preguntó doy-di digo-d...

1. ¿Dónde estuvo tu mama ayer? Mi Mama estuvo en la tienda. 2. ¿Tocaste un instrumento la semana pasada? Sí, yo toqué un instrumento la semana pasada. 3. ¿Adonde fuiste el lunes pasado? Yo fui a la escuela el lunes pasado? 4. ¿Cómo estuviste ayer? Yo estu...

Please check 1. ¿Dónde estuvo tu mama ayer? Mi Mama estuvo en la tienda. 2. ¿Tocaste un instrumento la semana pasada? Sí, yo toqué un instrumento la semana pasada. 3. ¿Adonde fuiste el lunes pasado? Yo fui a la escuela el lunes pasado? 4. ¿Cómo estuviste...

I made the corrections-someone yesterday redid a question but the questions shouldn't be redone-that's my homeowrk-the answers isare mine and I'm not sure if they're correct. 1. ¿Dónde estuvo tu mama ayer? Mi mamá estuvo en la tienda. 2. ¿Tocaste un instr...

Hi, I redid some of the answers as suggested yesterday from someone who responded to my post. Could you please see if I did them correctly-Thank you- I made the corrections-someone yesterday redid a question but the questions shouldn't be redone-that's my...

A bullet is fired straight up from a gun with a muzzle velocity of 148 m/s. Neglecting air resistance, what will be its displacement after 6.3 s? The acceleration of gravity is 9.8 m/s2 .

You decide to market your own custom computer software. You must invest $3,255 for computer hardware, and spend $2.90 to buy and package each disk. If each program sells for $13.75, how many copies must you sell to break even?

In a basketball game, a regular basket was worth 2 points and a long-distance basket was worth 3 points. If there were 45 baskets in a game and 96 points total, how many regular baskets r and long-distance baskets l were made? Show the correct system of e...

At the Wild Thing Zoo, you can rent a motorized cart to tour the grounds for a $4 initial charge and $4 per hour. An equation that represents the total cost y for x hours is y = 4 + 4x. At Safari Zoo, you can rent the same cart for a $3 initial charge and...

What is the solution of the system of equations? y = 3x + 7 y = x – 9

"How was the free-trade trial of 1849 a victory for the Metis?" Was it because the 4 Metis offenders were given mercy and it also ended the HBC monopoly?

Mercury dissolves in concentrated nitric acid, with the evolution of a reddish-brown gas, just as in the reaction shown in figure 5.4 on page 188 for copper. The oxidation state of the mercury after reaction is +2. Write a balanced net ionic equation for...

The density of carbon in the form of diamonds is 3.51 g/cm^3. If you have a 40- carat spherical diamond, what is the diameter of the diamond in millimeters? (1 carat=0.200 g)

how would tides be different if the moon revolves as fast as the earth rotate

18 play baseball, 17 play basketball, 30 play neither or both. I'm trying to make a Venn diagram but don't understand how. Please help!

How many grams of magnesium nitride are formed from 45.1 moles of magnesium?

The reaction of hydrogen peroxide, sulfuric acid and lead results in the production of lead sulfate in an acidic aqueous solution. Write the balanced equation for this reaction.

Calculate Eo (reduction potential) for the following balanced reaction. NiO2 + 2H2O + 2Fe(OH)2 Ni(OH)2 + 2Fe(OH)3

Determine the weight of Na2C2O4 which is required to react completely with 20.0ml of 0.02M KMnO4.

Check all of the following statements which are TRUE for a titration. Select one or more: a. A suitable primary standard must be available. b. The concentration of the solution in the buret (the titrant) must be known before the titration is begun. c. Tit...

I know that anything to the power of 0 is 1 but I need help with these 2 questions and check my answers: (xy)^0 / (z^2a^1)= (-2mn^2)^1 / (pqm)^0= (xy^2z)^0= 1? Negative Exponents: it says to leave answers with positive exponents only, I did all these ques...

Can you please help me with my math law of exponent quesions, please check my answers, please its due very soon.

please help me with the last question, are the others all correct?

is this the correct answer: 2m^-8n^-2/9m^2n^-6??

wait...so you were talking about this question: (c^2/3d^-1)^-2 I thought you were talking about this question: (2m^4n/3m^-1n^3)^-2 so is my answer to this question (2m^4n/3m^-1n^3)^-2 correct?

How do you do these questions, I have all my steps until the last one: 2x(2x)^2: 2x(4x^2)? Now do I multiply or add the big numbers? also Im having trouble on these: 1. x^2(xy)^3: x2(x^3y^3) 2. 3x^2(2x)^3: 3x^2 (8x^3) 3. -2x^2y(3xy^2)^2 4. -(3x)^2: -(9x^2...

please help me on my questions, I have a big test tomorrow and I don't understand how to do some questions, please help me

How do you do these questions, I have all my steps done until the last one: 2x(2x)^2: 2x(4x^2)? Now do I multiply or add the big numbers? also Im having trouble on these: 1. x^2(xy)^3: x2(x^3y^3) 2. 3x^2(2x)^3: 3x^2 (8x^3) 3. -2x^2y(3xy^2)^2 4. -(3x)^2: -...

How do you do these questions, I have all my steps done until the last one: 2x(2x)^2: 2x(4x^2)? Now do I multiply or add the big numbers? also Im having trouble on these: 1. x^2(xy)^3: x2(x^3y^3) 2. 3x^2(2x)^3: 3x^2 (8x^3) 3. -2x^2y(3xy^2)^2 4. -(3x)^2: -...

How do you do these questions, I have all my steps done until the last one: 2x(2x)^2: 2x(4x^2)? Now do I multiply or add the big numbers? also Im having trouble on these: 1. x^2(xy)^3: x2(x^3y^3) 2. 3x^2(2x)^3: 3x^2 (8x^3) 3. -2x^2y(3xy^2)^2 4. -(3x)^2: -...

How do you do these questions, I have all my steps done until the last one: 2x(2x)^2: 2x(4x^2)? Now do I multiply or add the big numbers? also Im having trouble on these: 1. x^2(xy)^3: x2(x^3y^3) 2. 3x^2(2x)^3: 3x^2 (8x^3) 3. -2x^2y(3xy^2)^2 4. -(3x)^2: -...

A bungee jumper of mass 75kg is stadnding on a platform 53m above a river. The length of the unstretched bungee cord is 11m. The spring costant is 65.6N/m. Calculate the jumper's speed at 19m below the platform on his first fall. [Also, please state which...

write a directed number to show the size and direction of the number. Question john walked 10km east

Where possible, classify these systems as reactant-favored or product-favored at 298 K. If the direction cannot be determined from the information given, classify the reaction as "Insufficient information". a)2A(g) + 3B(g) -->4C(g) delta H = -95kJ b)2A(g)...

Answers

The following answers were posted by visitors named Sophie.

but what equation is used to find it? the delta H/RT equation won't solve for anything

go to wikianswers . com no one rude about needing help there.. -Sophie

Then I would go with no change. Correct? Thanks.

I was marked incorrect for using the. Any ideas?

You said either "the" or "those" would be correct. Why was I be marked wrong for using "the"?

oh okay, thought so thanks!

never mind, i was right

thanks for checking (;

ohh okay thanks!

tan^-1(1/2)=x=.463648 tan^-1(2/3)=y.588003 x+y+pi/2 = -z=2.62245 z=-2.62245 cos (z) = -.868243 and tan a= -1/2 tan b= -2/3 tan (a+b)=(tan a +tan b)/(1-tan a.tan b) so tan (a+b)= -7/4 sec^2 x-tan^2 x=1 so sec (a+b)=√(1+49/16) =√(65/16) (a+b)=1/sec (a+b) so...

oh! thanks for your time!

oh, so it is C?

oohh yes i did! thanks!!

I get confused with negatives sometimes! thanks though!!

okay, thanks, it was right

no, mainly igneous rocks come from lava.

sooo will it be the same if you had 16 2/7 -10 ______________ you would have to change 10 into 9 and and put 7/7 so it would be like this 16 2/7 -10 7/7 but you would have take something to make it a problem

but what if the problem is 16 2/7 - 10

ok thank you so much! :)

is it condensationi am not sure

run dance play talk so much more!!!

-21... oh the days of fourth grade... have fun!

I couldn't number these because it kept saying I wanted to post a website URL I had to conjugate each vwerb in the past tense for above assignment-thank you

Please also check these-I had to post twice to get them listed-had a problem numbering the answers

After someone please checks this, could you also explain how to do accents on the keyboard-I always use Spanishtypeit which is a pain at times to go back and forth with- I have Windows PC

Thank you for checking these-it was a typo in son conjugated as fueron Thank you again Happy New Year!!

Thank you for answering and catching that one

Number eight got cut off-it should read supieron I think??? I have Windows XP

Please recheck number eight

I was told to conjugate poder in the past tense for 1-4-so I knew what I wa suppose to conjugate Thanks for helping me-I really appreciate it

I had to answer the above questions-I'm not sure if I answered them correctly-expecially number 3 Thank you for helping

Thank you for helping- I see what is wrong in mamá-except number 3 was asking "adonde" not Dónde-would it still be same answer? Also, number 5, I'm not sure I understand-shouldn't la escuela be separate from "yo empecé" ??

I apologize. I posted once early yesterday and then late. The person who answered caught a few mistakes which I now corrected.However, the person who responded changed the questions which I had to answer.The questions can't be changed-all I had to do was...

Thank you. I appreciate it

Hi SraJMcGin, I'm realy sorry I asked this question again-I never saw your post from a few days ago-I only saw what was posted by a Lore-that's why I asked what I did because the post by Lore changed some things around that I didn't understand-I never saw...

Thank you for replying. Why do we add water to it?

For MnO2 it says the product is Mn2+ (manganese ions), so write For the second half-cell reaction, I got Br- + 3H2O ---> BrO3- + 6H+ 6e-. Now I believe that I have to multiply the manganese half-cell reaction by three to cancel out the number of electrons...

how do you sqaure the last one?? please show me how

is the last one the only one that is wrong, please show me how to do the last one

so the correct answer would be : 2m^-8n^-2/9m^2n^-6??

wait...so you were talking about this question: (c^2/3d^-1)^-2 I thought you were talking about this question: (2m^4n/3m^-1n^3)^-2 so is my answer to this question (2m^4n/3m^-1n^3)^-2 correct?

how would you turn this question:(2m^4n/3m^-1n^3)^-2 into a positive?

Oh no, this is due tomorrow and I have a huge test on this concept tomorrow... But it's ok...

Do you know anyone else who can help?

So you know what the value for pi is, value for r is, and the value for V. So the only part is looking for h. You can achieve that by just manipulating the equation: V=pi(r^2)(h) into h=... V= pi*r^2*h V/ pi = r^2*h V/(pi*r^2) = h Then when you get the eq...

Assuming the final concentration of chloride anion after the addition of HCl (precipitation step) was 0.1M, what is the remaining concentration of Ag+ in the solution? (pKsp for AgCl = 9.74)

Number 2 and 4 are wrong.

Okay thank u Ms.Sue and are u a real techer

Are you sure its A?

Thank you! You make a difference in my life!

Thanks so much!

The answer is $61.25, but I don't now how to get it

Writeacher is right!

the Answer is very simple USE YOUR NOGIN!

Mario had 9 green,8 red,10 brown,6 Orange,and 9 blue m&ms what fraction of the m&ms are orange

I really need this answer right now!!!

I am not sute but this is on compound words unit so i think that's right thank you so much and can you please see if you can find the answers for puzzle # 2? Thanks

Thank you i will try to do them by myself.thanks again!

Sorry to bother you again but i can not find it for tower and phone

I don't have imagination PLEASE help me on this i'm so tired!!!! :'( :'( I'm stupid in language!

And you have to choose between this words : Baby_sitter Breakthrough Copyright Earthquake Expressway forehead Keyboeard Loudspeaker Near-sighted Ourselves Part-time Shoplifting Volleyball Worthwhile Wristwatch Bruis Nuisance Pursuit Seized Straight

Please i will die if you don't give me answer! !!!!:-( :-( :-( :'( :'( :'( :'( Please

The big idea of energy is explaining it as though it is something else

The REAL answer is 2.1 because if you add 3.5+2= 3.7 then you subtract 3.7-6=2.1

is the answer correct?

The answer is 5, because the factors of 36=1,2,3,4,6,9,12,18,36. You can pair these up in 2's to get the Lengths and the widths. Then you would put 10 as the height to make all the products into 360.

it would take about 39,682 days

36 inches=3 yards 36=1,2,3,4,6,6,9,12,18,36 W<12 W>6

oups sorry 36x3=3 yards

He uses 12 bananas, 9 apples, and 18 pears

it is feminine :)

I have spent a month trying to figure this out.. Thank you. You have saved my life.

Pick a character. Talk about it and why you picked it.

MC= TC - TC(one less) TC= AVC*Q

Ms. Sue Thank you very much That site was very helpful

These are the only options! Thank you anyway :)

I think it is D

Me To!!!!!!!!!!

so if you think about, the problem presents us with a function, f, and 2 different values of x that are put into f, which are a and b. if f(b) and f(a) yield y values, and b and a are x values, doesn't that make the given formula the slope formula? see: f...

in the scale drawing below each side is 47.5 cm long. Use the scale factor 1cm=6.5m. What is the perimeter of the actual object?

Thank you so much!!!

Work done = 100 joules Work = force distance 100 joules = 30 newton X= 100/30meter X= 3.3meter

It is 50/90 or 5/9 because 40 + 50 is 90. There are 50 of the 90 girls born. Therefore it would be 50/90! Hope that helped

the options are They started moving inland after a major storm hit the coastal plains. They started moving inland to avoid the constant, heavy precipitation. They started moving inland when there was less space along the coast. They started moving inland...

Ugh, I got a 76 on my test. I thought I had the right answers, guess not.

OK thank you for your help :)

The answer is 15/1 and 90/6