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algebra
Solve for s in this equation. Depreciation. D=C-s/n This is my answer D-C=C-s/n-c D-C=-s/n -n(D-C)=-s/n*(-n) -nD+nC=s s=n(C-D) Please chack to see if this is correct Looks fine to me. A slightly shorter (by 2 lines) rearragement is: D=C-s/n D+s/n=C s/n=C-D s=n(C-D) but hey, ...

math
i got the following wrong, but don't know what I did wrong- die rolled 30 times, what is the expected value that a 5 will appear. I thought 3.5, but was told wrong. Help!

english
What is wrong with these sentences then? I have been reading and studying abouy subject-verb agreements and I keep getting this wrong so I need help becauase I just got these wrong. 1. A number of my friends have bought new cars recently. 2.Each of his sisters go to a ...

Calculus
Let f be defined as follows. y = f(x) = x^2 - 4 x (a) Find the average rate of change of y with respect to x in the following intervals. from x = 5 to x = 5.5 For some reason I keep getting this wrong. The way I did it was: f((5.5)-f(5))/(x2-x1)= 22-5/5.5-5=34 This is wrong, ...

Maths
There was a question: A gallon jug of milk is 3/4 full. After breakfast, you drink 1/12 of the milk. What fraction is the gallon is left? And here was my answer: 1/12 drank --> 11/12 left 3/4*11/12=11/16 But I got the question wrong. Did I get it wrong? I got it correct, ...

URGENT Spanish help please.
ok in the example it shows: ¿Comprendes espanol? Si, lo comprende ok for this question it's asking 1) do you and your siblings practice tennis my response: no, no los practicamos.. it said i was wrong how would I correct that 2) it asked does your mother teach biology? My ...

English
They worked in the garden, but they worked wrong? What did they dod wrong? (Is the sentences grammatical? Do we have to use 'wrongly' instead of 'wrong'?)

Antiderivatives
For the function f, given below, find the antiderivative F that satisfies F(1)=1. f(x)= x^5 -4x^-3 -4 . I keep getting x^6/6 +x^2 -4x + 17/6 . But my answer is wrong My other answer of x^6/6 +4x^-2 +4x + 43/6 is wrong also. They both end up equaling 1. So what am I doing wrong?

Math
John's car is 13 feet long. He is making a model that is 1/12 of the actual size. Which proportion below should be used to find the length, L, of the model? A(wrong) 13/L = 1/12 B(correct) L/13 = 1/12 C(wrong) L/13 = 1/L D(wrong) 12/L = 13/1 I don't get it! How is it B?

chemistry class
What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydroxide ion? i posted this before and i tried solving it but i get it wrong 14 = ph + - log (3.98 × 10-9) 14- 8.4 = ph 5.6 = ph but the correct answer is 8.400 what did i do wrong? or is the ...

PLease Help Me IN Math
Problem: 25-x^2 6 ------ * --- 12 5-x What I Got: 5-x --- 2 *Please Check My Work And Tell Me If I am Correct or wrong.If I am wrong please help me as much as possible.Thank you~ Wrong. When are you going to factor the 25-x^2 ? The 5-x then will divide out. oh...so then will ...

math11
Solve the non linear equation x^2=3x+4 graphically using a calculator, Write the equations of the graphs you used to find the solution. I got this question wrong what would be my Y1= and Y2= equations. Not sure what I'm doing wrong but whenever I have an x^2 I get them wrong.

math11
Solve the non linear equation x^2=3x+4 graphically using a calculator, Write the equations of the graphs you used to find the solution. I got this question wrong what would be my Y1= and Y2= equations. Not sure what I'm doing wrong but whenever I have an x^2 I get them wrong.

Chemistry
NEWW- 0.10 M methylamine (CH3NH2) kb= 4.38e-4 calc the percent ionization so i did the ICE table to find that x=6.62e-3 (that was a typo the first time) and then i divided by .1 and then multiplied by 100. but i got the wrong answer whats did i do wrong? my answer was 6.62% ...

math
The graph of the equation 8x–5y=14 passes through a point with an abscissa of 1.2. Find the ordinate of the point. I got .8 repeating but my teacher said that it was wrong. I then got 9.6 and it was also wrong. what am I doing wrong and can you put the answer with the ...

psychology
sociocultural theory interplay of genetic inheritance and environment(right) impact of being African American on your learning abilities (wrong) role of the unconscious in learning(wrong) role of consciousness in child development(wrong)

6th grade Math
I got a problem wrong and I don't know why. Here it is: A highway construction warning sign blinks on and off. In all, the sign is on for 0.88 of each minute. For how many seconds is the sign on in 5 minutes? I multiplied 0.88 x 5 and got 4.40 but it was marked wrong. What did...

Math
Find the area of a circle whose circumference measures 100 cm. Area (to the nearest square centimeter) = cm2 I plugged in everything C = 2 r C=2x3.14x100= 628 <<< The computer said it was WRONG ! Then, I tried C= 2X3.14X50= 314 !!! If I am wrong can you EXPLAIN to me ...

Advanced Accounting
Mr. Right and Mr. Wrong own an antique store in a partnership. They share profits and losses equally and receive an annual salary of $50,000, as per the partnership agreement. Mr. Right travels the country buying antiques. Mr. Wrong manages the store. From time to time, they ...

Algebra: Help Please
For the given function, compute the missing values in the following table. f(x) = 8x i got the negatives wrong, but I know how to solve for it. Is there a reason it is wrong? -3: -1/512 -2: -1/64 -1: -1/8 (^These were wrong, but I don't know how to solve it) 0: 1 1: 8 2: 64 3...

chemistry
Formal charge: kind of confused? why cant i get -1? i just want to know if the way im solving it, if its completely wrong. i have a test soon. please help! tinypic . com /view.php?pic=14buuti&s=7 ok in class we did this. and for O FC= 6-4-3=+1 but S FC = -1 (I get 6-4-1= +1) ...

MATH 2B Calculus
Consider the area between the graphs x+4y=14 and x+7=y^2. This area can be computed in two different ways using integrals. First of all it can be computed as a sum of two integrals They ask to use two integrals so i put f(x) from -7 to 2 which is correct but for g(x) i put 2 ...

math
I am doing something wrong when I work this question. Can someone show me the steps. I have the answer. x<5.189 The sum of the costs in parts a and c is less than $120. Write and solve an inequality to determine the possiblities for the number of compact disks Merle ...

English
Posted by rfvv on Monday, June 6, 2016 at 7:05pm. 1. I try not to stress when things go wrong. 2. I try not to stress out when things go wrong. 3. I try not to stressed when things go wrong. 4. I try not to stressed out when things go wrong. --------------------- Are they all ...

Calculus-help please
f(x)=(9x^2–8)^6(4x^2–5)^11 What's f'(x)= i found (9x^2-8)^6 *11(4x^2-3)^10*8x+((4x^2-3)^11)6(9x^2-8)^5*(18x) but my electronic homework says it wrong what did i do wrong?

Factor Completely
c^2 - 4c - 32 I got (c - 4) (c - 8) but i think its wrong because the do not match to make it squared, what am I doing wrong?

2nd grade
what is the wrong verb in this sentence? One person done something wrong?

Derivative
Find dy/dx for the following: 1) x^3 + 3x^2*y + y^3 = 4 I get -3(x+2y)/x^2 + y^2 it's wrong though. 2) x + y^2= xy^2 I get y^2 + 1/ 2y- 2xy this is also wrong. can you explain thanks

English
1. Is there something wrong with her? 2. Is there anything wrong with her? (Are both grammatical? What is the difference between them?)

Algebra
2r-5s=-14 5r+2s=23 I know the answer is s=14 and r=3 but how do I wirte this down on my assignment? If I entr it wrong, I will get it wrong.

French
What's wrong with this sentence? Un "A" est meilleure q'un "F". I think there's something wrong with q'un

Chemistry
What is wrong with these sets? Fix what's wrong: n=4, l=3, ml=4 n=2,l=-1, ml=1 I don't exactly even know what the question is asking!

algebra 1
-2/3z=-4/9 i tried to solve, but i keep on getting the wrong answer, and i do not understand what i am doing wrong. please help.

Math
I had to simplify the expression: -5exponent2(squared) I got the answer of 25 wrong. Why is that wrong?

Chemistry
Calculate the pH after 0.10 mol of HCl is added to 1.00 L of the solution that is 0.57 M HF and 1.13 M KF. I got 3.01, but it is wrong. What did I do wrong?

Chemistry
At 1100 K, Kp=0.25 for the following reaction. 2SO2(g) + O2(g) (reversible arrows) 2SO3(g) What is the value of K at this temperature? This is what I have so far: I did Kc=0.25(1100(0.0821))^-1 and got Kc=0.00276. That is incorrect. Why? What did I do wrong? I believe I gave ...

6th grade math
use compatible numbers to estimate the quotient: 7.35/6 answer: 1.20 is this wrong if so what did i do wrong? Thanks

Algebra
What is the best estimate for 3 + (-14.9)(-2.3)? a 36 b 31 c 48 d 33 I came up with 36 but my teacher counted it wrong. I reworked it but still come up with A-36. What am I doing wrong?

Math
The problem is ; 10x+8-y X= 2 Y=5 Every time I do it I get 23 but my teacher says I'm wrong . where am I wrong ? someone help me please .

Math Question
( (0.1095 mmol/mL)(25 mL) - (0.1482 mmol/mL)(29.04 mL) ) / ( (1000 mg/g)(1.3010 g) ) what is the answer i got -.0012 but its wrong Something is wrong with what you are trying to calculate. The first term has dimensions of millimoles and the second term has dimensions of ...

algebra
systems of linear equations in 3 variables 1/3x-2/3y+z=0 1/2x-3/4y+z=1/4 -2x-y+z=1 every time i do it is wrong and i cannot figure out what I'm doing wrong please help!!!

Algebra
Need help finding composition of functions. I am doing something wrong continue to get wrong answer f(x)=x+6/x+5, g(x) = 2x-7. Find (fog)(x)

Chemistry
For a 0.47 M solution of LiClO compute the pH. Hi. I am confused about this question. I calculated the pH...but my answer is wrong. what am I doing wrong??? pH=-log(0.47) pH=0.33

Physics ~work shown pls help!
An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1 cm? Answer in ...

Math
Hi, I am getting very frustrated. I am doing an online homework for chemistry and it's telling me to round to the nearest WHOLE number. So the answer I got was -1435.650.... And I typed in -1436. and said I was wrong and so I tried it again and typed 1.4 x 10^3, wrong again. ...

Algebra
In response to my previous question, I tried 115 tan 78.3. But I got -28.1. Is my calculator on the wrong setting or did I type it in wrong?

Algebra
Simplify the rational expression. (45y-9xy)/(x^2y-25y) I got an answer of 9y/y(x+5) but it seems to be wrong Could anyone see what I did wrong. Thank you

chem
Calculate [H3O+] for each of the following solutions. a)pH = 8.59 i got 3.00e-9 but it said it was wrong. what am i doing wrong. im using the equation 10-ph = [H30+]

math
How do you solve this? 5x- [1.5 -3.6] [0.2 1.3] [-0.3 2.8]= [-5.6 1.7] 5x/5[-1.5 -3.6] [0.2 1.3] [0.3 -2.8]=[-5.6 1.7] x = [-1.5 3.6] [0.2 1.3] [0.3 -2.8]=[-5.6 1.7] [-1.5 + 0.2 + 3.6 + 1.3] [0.3 + -5.6 + -2.8 + 1.7] x = [-1.3 4.9] [-5.3 -1.1] I have tried to work this out ...

Math
What is the difference between 126 1/4 and 78 2/3? A. 57 7/12 B. 48 1/3 C. 47 7/12 D. 58 5/12 I think it's C , but i really don't understand fractions, if i'm wrong could you possibly elaborate what i did wrong and how to fix it

college Algebra
solving rational equation trying to figure out where i did wrong x/x-4 -4/x-5 = 4/x^2-9x +20 x/x-4 -4/x-5= 4/(x-4)(x-5) domain x not equal +- 4,5 x(x-4)(x-5)/x-4 - 4(x-4)(x-5)/x-5= 4(x-4)(x-5)/(x-4)(x-5) x(x-5)-4(x-4)=4 x^2-5x-4x+16=4 x^2-9x+16=4 x^2-9x+16-4=4 x^2-9x+16-4=0 x^...

Algebra
m=8/9,(6,-4) I can get to the last step but my answer is always wrong what am i doing wrong

statistics
Help!!I have tried this several times and come up with wrong answer. WHAT PERCENTAGE OF A NORMAL DISTIBUTION IS GREATER THAN THE MEAN? (GIVE ANSWER TO NEAREST PERCENT)THIS ONE I GOT 68% AND IT WRONG... AND WHAT PERCENTAGE IS GREATER THAN A VALUE THAT IS 1 STANDARD DEVIATION ...

algebra 1
sorry but on the last question i posted the wrong equation... (3x^2-8x+1)(-2x^2+x-2) I have heard of the FOIL process but i still tend to do the problems wrong...

Chem II Oxidation Reduction
I2 + KIO3 + HCl ----> KCl + ICl Ok, this is my thinking . . . . I^+5 + 4e^- -----> I^+1 Cl^-1 +1e^- -----> 2Cl^-1 I know that this is wrong, because the e^- are all on the same side. What am I doing wrong?

algebra
I need help showing me how to do some problems.. 5. 28-0.3y = 0.7y-12 I got 10/400 or 0.025.. and 3c-4c+1=5c+2+3 I ended up getting c=1 but the book says it's wrong too.. What am I doing wrong?

Please check
Compelete the following table for an ideal gas. P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online homework says its wrong, what am I doing wrong?

Chemistry please help
Compelete the following table for an ideal gas. P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online homework says its wrong, what am I doing wrong?

Algebra where did I go wrong
evaluate the expression 5C2 5! 5-2!= my 1st answer was 20 than 120 either one was right. where do I go wrong Thank so much for your time

Math (pre-celc 12)
Factor 2x^4-62x^2+60x I get: 2x(x^3-31x+30) 2x(x-30)(x^2-1) 2x(x-30)(x-1)(x+1) But that's wrong. It should be (I think): 2x(x-1)(x-5)(x+6) Please show me where I went wrong.

Algebra
Write the following number in scientific notation. 0.157 I thought the answe was 0.157x10^3. it is wrong need help! No idea how its wrong

Grammar
The nurse's notes in the medical record indicate the patient's pain was severe. What is wrong with this sentence? Or wrong grammatical errors?

Writing
My corrections (please check grammar...etc): As I reflected back I realized that my friends got better grades than me. ...better grades than me... What is wrong with this? ...seek for help... What is wrong with this? ... it instead learns... What is wrong with this? Literally...

History
I need loads of info on why slavery is wrong. It must say why making people live in harsh conditions is wrong aswell.

math
hi i need to solve this question but i don't know how to do it when there is dividing included x(x-8):5=92 i did this much and then i found out that what i was doing was wrong x(x-8):5*5=92*5 2x-8=460 2x=468 x=234 but it seems wrong

Chemistry
Calculate the pH after 0.13 mol of NaOH is added to 1.00 L of the solution that is 0.57 M HF and 1.13 M KF. I got the answer of 3.66 to 3 sig figs, but it's wrong. Can you please tell me what I did wrong? -Thanks

Chemistry
What is the energy of a photon corresponding to radio waves of frequency 1.475 106 /s? I got 9.77e-28 as an answer and its wrong so what is wrong with my calculations.

philosophy
can anyone tell me is there any strong response aganist norcoss argument that if it wrong to kill puppies, so it is also wrong to support farming factory

Chemistry problem check
Compelete the following table for an ideal gas. P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online homework says its wrong, what am I doing wrong?

math
When I worked this problem out I got the answer $250.80. It was graded wrong. Can you explain what I did wrong. A deposit of $8,000 at 9.5% for 120 days $

math
When I worked this problem out I got the answer $250.80. It was graded wrong. Can you explain what I did wrong. A deposit of $8,000 at 9.5% for 120 days $

science- physics
Find the x- and y-components of the vector d⃗ = (6.0 km , 31 ∘ left of +y-axis). I worked it out and got 5.14, 3.09 and apparently it's wrong, I don't know what I did wrong.

physics
I DON'T KNOW WHAT IM DOING WRONG!!!!!!NASA has built centrifuges to enable astronauts to train in conditions in which the acceleration is very large. The device in the figure below shows one of these "human centrifuges." If the device has a radius of 8.3 m and attains ...

tere
what did i do wrong? i need to find lowest vapor pressure. a 0.13 m FeCl3 b 0.50 m sucrose c 0.24 m NaNO3 d 0.15 m Na2PO4 so i solved. a 4 x 0.13 = 0.52 b 1 x 0.50 = 0.50 c 5 x 0.24 = 1.2 d 7 x 0.15 = 1.05 i chose C but the answer is A. did i do something wrong?

Math: Trig
What is Arcsec(-2) equal to and how can you find the correct answer? I got 2pi/3 but it was marked wrong on my test and I'm not sure why it's wrong. Can you please explain this to me? Thanks!

Chemistry
O5F2 Express your answer using two decimal places. I got 118, but when I rounded it to 120 and made it 1.2*10^1, it said I was wrong. What did I do wrong?

English
Why did it go wrong? What is the opposite of 'go wrong'? is it 'go right'?

French
I'm having difficulty with these two sentences. There is something wrong with them and I can't figure out what it is. I'm pretty sure it have to do with pluralization but I don't know what I'm doing wrong. Ils avaient un job. Ils travaillaient dans un garage. & Vous n'aviez ...

Math please help
A square is constructed using the hypotenuse line AC of right triangle ABC as a side, as shown below. Find the area of the square if AB = 5 and BC = 9. I tried to approach this by finding the hypotenuse, which i found was 10, then i used that to find the area of the square ...

dif. bet. Mm and mm
I was just working on a problem and i seem to keep getting it wrong. I think i might be converting wrong. all im wondering is.. is Mm the same as mm(millimeters)?

chem class
What is the pH of an aqueous solution at 25.0 °C that contains 3.98 × 10-9 M hydroxide ion? i posted this before and i tried solving it but i get it wrong 14 = ph + - log (3.98 × 10-9) 14- 8.4 = ph 5.6 = ph but the correct answer is 8.400 what did i do wrong?

Can someone please check my answer for chemistry
Compelete the following table for an ideal gas. P= 7.74*10^3 Pa V= 10.3 mL N= ? T= 25°C I'm getting 3.20e-4, but my online homework says its wrong, what am I doing wrong?

Math
I need help with decimal Bedmas, I find that when I use a calculator and split up the equation into the proper sections the answer sometimes out wrong. I don't know what im doing wrong. eg. 2.3 (4.5-9.6)+3.1= (4.5-9.6)= -5.1. 2.3x-5.1=-11.73+3.1=-8.63.

Math
75 + -63 + 7( 115/ -5 + (-8)2 ) -63 is -6 to the third power and (-8)2 is (-8)to the 2nd power. I got 15913 I think that that is wrong and my calculater wouldn't fit all the numbers so I don't know how to check it! Can you please try it so I can double check answers? it is ...

Math Help Please!
My investment in Edgewater stocks is losing half its value every 2 years. Find and interpret the associated decay rate. If I use the formula y=100(1/2)^x (<-- Is that correct?) I got the answer of 0% (its wrong), I used a different formula, which should be wrong and got the...

Math
First, give the technology formula for the given function and then use technology to evaluate the function for the given values of x. (Round your answers to four decimal places.) r(x) = 4x2 + 1/4x2 − 1; x = −1, 0, 1, ..., 9 f(6)= f(7)= For f(6), I got 1.0103, but ...

English
1. I try not to stress when things go wrong. 2. I try not to stress out when things go wrong. 3. I try not to stressed when things go wrong. 4. I try not to stressed out when things go wrong. --------------------- Are they all grammatical? What is the difference among them?

French
my teacher marked these phrases as wrong but i don't know what about them is wrong: 1. je revelerais sans prevenir 2. j'ai vendu mes robes plus jolies both of them need "un mot a ajouter"

chemistry
0.10 M methylamine (CH3NH2) kb= 4.38e-4 calc the percent ionization so i did the ICE table to find that x=6.26e-3 and then i divided by .1 and then multiplied by 100. but i got the wrong answer whats did i do wrong?

algebra
find the monthly payment for a loan. Round off to the nearest cents. I did 300*0.10 = 30.00 330.00 divide by 12 years 27.50. Where did I go wrong. It say my answer is wrong. Thank you for who ever helps me

Physics *work shown ~ pls help!
An electron is accelerated by a 6.4 kV potential difference. The charge on an electron is 1.60218 × 10^−19 C and its mass is 9.10939 × 10^−31 kg. How strong a magnetic field must be experienced by the electron if its path is a circle of radius 5.1 cm? Answer in ...

chemistry
I posted a question similar to this one a few days ago and someone helped me with it. but now im on a similar one and i did the same thing to find the answer but it was wrong. what am i doing wrong? An equilibrium mixture of the following reaction was found to have [CH4] = 0....

US history HELP
From late 1941 into early 1942, World War II in the Pacific experienced: 1.(i am not sure) a string of American victories that put Japan on the defensive 2.(wrong) the Japanese invasion and capture of Australia 3.(wrong) the Japanese on the Philippines surrender to General ...

Math SOMEONE PLEASE PLEASE PLEASE PLEASE HELP
Find sin(θ), cos(θ), tan(θ). Assume a = 40, b = 9, and c = 41. (Do not use mixed numbers in your answers.) Okay for some reason I keep getting this problem wrong. For sin(θ) I put 9/41, but it's wrong. Could someone please tell what I did wrong.

chem
For each of the following equilibria, use Le Chatelier's principle to predict the direction of reaction when the volume is increased. (a) C(s) + H2O(g) CO(g) + H2(g) (b) 2 H2(g) + O2(g) 2 H2O(g) (c) 2 Fe(s) + 3 H2O(g) Fe2O3(s) + 3 H2(g) a i put no change because there are the ...

weird maths sum!!
The questions is simply: Find the range of values of x for which x(2-x)<-15 This is what i did: x(2-x)+15<0 2x - x^2 + 15 < 0 -x^2 + 2x + 15 < 0 (x+3)(-x+15) < 0 -3<x<5 but when i check by subbing the number, say, 4 into x, the answer is always greater ...

math
perform indicated operations. (a+3)/(5a+25)-(a-1)/(3a+15) (a+3)/5(a+5)-(a-1)/3(a+5)=(a+3)5(a+5)/5(a+5)3(a+5)-(a-1)5(a+5)/5(a+5)3(at5)= 5a^2+25a+15a+75+5a^2+25a-5a-25/5(a+5)3(a+5) i got (10a^2+60a-50)/5(a+5)3(a+5)and that's wrong. where did i go wrong?

math
what percent of 300 is 60 F)20% G)50% H)2% J)5% i think I'm just doing it wrong because i got (180) and then the 2 time i got (500) so do you mind telling me what Am doing wrong

math-calculus
i think i do something wrong again(2x+1)/(x-3)-(4x-1)/(2x-3) = 0 (2x-3)(2x+1)-(4x-1) = (0)(x-3)(2x-3) 4x^2+2x-6x-3-4x-1 = 2x^2-3x-6x+9 4x^2-4 = 2x^2-3x-6x+9 -2x^2-9x+13 i put this in quadratic formula and i think it wrong becaue i get 9/2 and 0for x and it have to be 2/3.

Math-- PLEASE CHECK
234 - 145 3/4 233 4/4 -145 3/4 ___________ 88 1/4 or am I wrong? How do I solve this if I am wrong? Thank you!! you're correct

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