# Posts by kate

Total # Posts: 2,015

college calculus
find a and b so that f(x)=x^2+ax+b has a local min at (6,-5) i found the derivative: f'=2x+a then i found a 0=2x+a 0=2(6)+a 0=12+a a=-12 but i can't seem to get the correct value for b. i plugged -5 into the original function, but my book says the answer is b=31. how ...

french
oops sorry, chemise is shirt, not blouse

french
Au bazar de la ville,- at the village market/bazar il choisit un pantalon rose - he chose pink pants une chemise a pois-a polka dot blouse et des bottes-and some boots en lezard! - not sure what lezard means, je suis desolee.

you are as unique as an m and m You as sweet as an m an m

isnt a metaphoring comparing to things using like or as

social studies
like how he says he wants to give the taxes or somthing like that to other people

social studies
his fault like as in raising the taxes or distrapution

social studies
I need help making a political cartoon. It needs to be about obama any help is greatly apreciated

english
Well M and m are all diffrent colors and since all the m and m arent the same color it means there uniquine and people arnt all the same we are all unique do you get what i am saying

english
what do you mean like an M and m candy

calc I
how do i find the critical points of the function g(x)=xe^-x i think the derivative is xe^-x*-x^2e???

calc I
f(x)=x^3-6x+1 find the critical points, where the function is increasing or decreasing and explain the shape of the graph using the derivative and algebra. i found the derivative to be 3x^2-6. So the critical points are -1.4 and 1.4. The derivative is decreasing until (0,6) ...

calculus I
find a and b so that f(x)=x^2+ax+b has a local min at (6,-5) i found the derivative: f'=2x+a then i found a 0=2x+a 0=2(6)+a 0=12+a a=-12 but i can't seem to get the correct value for b. i plugged -5 into the original function, but my book says the answer is b=31.

english
thank you!

english
what exactly does this phrase mean.... such discourse facilitates the praxis of hope??? i think it means that discussion facilitates the practice of hope...but i looked up the definition of praxis and i'm not sure which one fits the context of this sentence.

Chemistry
How do I convert the atmospheric pressure = 30.17in to mmHg? also how do I convert to mm H2O?

ap biology
what are two examples of roles of predation in population control (tundra biome)

college biology
why is autophagy not considered endocyctosis?

Pre-calculus
This is a right triangle. Therefore the Pythagorean Law applies. 150^2+300^2= Distance^2 22500+90000=D^2 112500=D^2 335.41=D Rounded to the nearest tenth, D=335.4 feet

Biology
What is an adenosine triphosphate? I don't understand the fancy definitions. Can some one please simplify it for me? Thanks!

They are lines that run next to each other, but can go on forever and never meet or intersect.

Current events
Does anyone know pakistan's current position on russia/georgia, the environment,and the status of permanent refugees?

Math
Can you explain that?

Math
what is the answer if, for example, the base number is 8 and the exponent is 0?

Math
S = 11 + 18 + 27 + 38 + 51 + 65 + 82 + .........+Tn S = 11 + 18 + 27 + 38 + 51 + 65 + ................ + Tn --------------------------------------... 0 = 11 + (7 + 9 + 11 + 13 + ....(n-1).terms.................) - Tn 0 = 11 + (n - 1)/2 [14 + 2(n - 2)] = 11 + (n - 1)(n + 5) - ...

math
Determine if there exists a real number that is exactly one less than its cube. If so, find the value of the number. (Hint: IVT)

Science
A girl is pulling a sled up a hill with a force of 5N. The wind is blowing at her back (uphill) with a force of 15N. The force of gravitity is 20N and friction between her boots and the snow is 5N. What is the net force, including direction, of this situation?

Math
You have 84 coins, in dimes or nickles that equal \$7.15, how many dimes and nickles

Science
A car is driving up a hill with a force of 40N. The wind is blowing downhill with a force of 10N. Gravity is affecting th car with a force of 20N. The force of friction is 9N. What is the net force, including direction, of this situation?

Pre-calculus
x = r cos(45) ...(1) y = r sin(45) ...(2) Dividing (2) by (1): y / x = tan(45) = 1 y = x.

math
WHAT EVER YOU DO TO ONE SIDE YOU DO TO THE OTHER SIDE

math
-10h-6=24 +6 +6 10h 30 _--- _----- 10 10 h=3 SADS =same sings add different subtract

math
can you put patterning questions up on your website like youdidfor algebra an arthemitics?

Philosophy - Logic
I keep getting different answers from different sources on these questions... I'm still not sure. Anyone else who can lend their opinion? #1 I need to know if this is a real or apparent argument. A: I saw Bob with Mary last night. B: You saw Frank, Bob's identical twin...

LOGIC
Oops. In the first set of statements, both statements should read "Mary."

LOGIC
I keep getting different answers from different sources on these questions... I'm still not sure. Anyone else who can lend their opinion? #1 I need to know if this is a real or apparent argument. A: I saw Bob with Mary last night. B: You saw Frank, Bob's identical twin...

Philosophy - Logic
#1 I'm having trouble understanding why you say it is not a real arguement. Person A is stating that he saw Bob and person B is saying that person A really saw Frank. How is it possible for the two statements to both be true and thus inconsistent? #2. Can't person A ...

Philosophy - Logic
I have a few logic questions that I am having difficult with and would be greatful for any insight... #1 I need to know if this is a real or apparent argument. A: I saw Bob with Mary last night. B: You saw Frank, Bob's identical twin, with Marsha last night. I'm ...

Math/Calculus
Find k so that the following function is continuous on any interval: f(x)= kx 0 (less than or equal to) x (less than) 2 3x^2 2 (less than or equal to x) i know the answer is 12 but i don't know how to arrive at that. could you please walk me through the steps? thanks.

HELP! MATH
cold yam is put into a hot oven, the temperature of the yam begins to rise. The rate R in degrees per minute at which the temperature rises is governed by Newton's Law of Heating, which says that the rate is proportional to the temperature different between the yam and the...

Math
A cold yam is put into a hot oven, the temperature of the yam begins to rise. The rate R in degrees per minute at which the temperature rises is governed by Newton's Law of Heating, which says that the rate is proportional to the temperature different between the yam and ...

Calculus
A cold yam is put into a hot oven, the temperature of the yam begins to rise. The rate R in degrees per minute at which the temperature rises is governed by Newton's Law of Heating, which says that the rate is proportional to the temperature different between the yam and ...

French
1. j'ai un ordinateur. 2. vous n'avez pas de chaise. forms of avoir j'ai tu as il/elle a nous avons vous avez elles/ils ont

earth science
how does radioactive decay provide heat energy within the earth

Algebra
A guy wire reaches from the top of a 24 ft. pole to a point on the ground 8 ft. from the pole. Find the length of the wire.

geometry
i didn't understand the concept of symmetry in maths ? what is its use in the field of mathematics? what is tha aplication of symmetry of symmetry in various fields. somevdy please answer

Spanish 2
Write correct preterite forms of the verbs ir and estar to complete conversatin. Claudia y yo ______a comprar sellos; _______ en el correo por quince minutos. Elías _________ a cobrar un cheque; ______ en el banco por veinte minutos. Irene y Marcos ______ a comprar unos...

civics
what amendment number restricts the president in regards to treason, bribes, and being impeached?

Italian
How do you say "twin town" in Italain. I know its "Une ville jumelle" in french. A.s.a.p X

science
How is sickle cell anemia maintained in our world (why doesn't it eradicate itself)?

science
can someone help me answer this question? How is the sickle anemia gene maintained (why doesn't it destroy itself)?

science
I don't understand what this question is asking (what does it mean by physiology) Explain the physiology of sickle cell anemia.

french
Ok thank-you! I also have a question: I said the address was 34, rue.... and that still is the address. Should I use the imparfait for that or is it o.k.? Nous sommes allées au Musée des Tissus et des Arts Décoratifs à onze heures. L’adresse a...

french
CAn someone proof read this? Nous sommes allées au Musée des Tissus et des Arts Décoratifs à onze heures. L’adresse a été 34, rue de la Charité, Lyon, France 69002. Nous avons vu des textiles du dix-huitième si&...

english
nevermind

english
how can i use the word caustic in a sentence that relates to the book "A Separate Peace"

science
I do not understand this question. I tried to answer it but I am completely at a loss. Can someone help? Describe how the number of antibodies produced and time it takes to produce such antibodies differs between first time exposures and all subsequent exposures.

Pre-Algebra
I am having problems with graphing inequalities how do you do them for example x + y < 3 or x> -2

Organic Chemistry
I just wanted to get these checked. I think 1 is b, 2 is a, 3 is d, 4 is c, 5 is e and 6 is a

Organic Chemistry
I got some multiple choice questions to practice and I'm not sure of how to get the answers... 1). Which of the following corresponds to the COC bond angle in dimethyl ether?-94 degrees, 110degrees, 180 degrees, 122 degrees, or 60 (i think it's 110 2). classify the ...

chemistry
Yup! Thank you!

chemistry
I'm reviewing for a test tomorrow, and I was wondering about this question. Convert 55 mi/gal to meters/liter. I'm not sure how to go about it, though when I tried it I got 89000.0m/4L. But, I'm not sure if that is right.

chemistry
Okay, good. I think I'm all set then. Thank you!

chemistry
I was thinking that if, for example, two different pressures were given, two different volumes were given, two different temperatures were given and only one mole, then you use P1V1/n1T1...etc to find the missing mole. But, if only one pressure, one volume, and one temperature...

chemistry
I know how to use the equations pv=nrt and P1xV1/n1xT1 = P2xV2/n2xT2, but I don't understand when to use them. I have a test tomorrow and I'm going over some word problems, but I can't figure out how decide which formula you need to use. Is there a specific way to ...

Chemistry -- to Dr.Bob I need your help!!!
how do you do this

The songs Lift Every Voice and Sing and America the Beautiful both have religious refernces in the first stanza. Our current national anthem, The Star Spangled Banner does not. Traditonally only the first stanza is sung at baseball games and events. I need to come up with ...

Chemistry
So, for KCl, using the graph... T.....mass KCl/100 mL 10....30 20....32 or 33 30....35 40....38 50....41 60....44 70....46 80....49 90....52 or 53 100...56

Chemistry
In the question above this one it says refer to a solubility chart, but my professor never taught us how to answer these questions while using a solubility chart so I have no idea what to do. I've tried going to his office hours for help, but he's only there when I ...

Chemistry
How many grams of KCl can you dissolve in 50. g of water at 70 degrees C?

Chemistry
Thank you, I made the change. My professor is very precise, so I'm glad you noticed that!

Chemistry
mols HCl = 0.750 M x 0.025 L = 0.0186 mol M = 0.0186 mol/0.500 L = 0.0372 the answer is 0.0372 mol/l

Chemistry
What is the concentration of a solution prepared by diluting 25.0 mL of HCl 0.750 mol/L to a final volume of 500. mL?

Find the values of x for which the equation sin x = -1 is true 2 pi n pi/2 + 2 pi n pi + 2 pi n 3 pi/2 +2 pi n Can someone please help. I don't understand how to do this.

chemistry
If A is a non-polar chemical and B is a non-polar solvent, what type of solubility (high or low) would you expect between A and B? --Is it high solubility?

Chemistry
So, if I convert mmHg to atm I get .904 atm. When I plug that into the equation, the final answer is 67.1 L?

Chemistry
Okay... 1) 275 g NaCl ----> 4.71 mol NaCl 2) Next, 4.71 mol NaCl * 1Cl2/2 NaCl = 2.36 mol Cl 3) V= nRT/P v= (2.36 mol)(0.0821 L atm/K Mol)(313K)/687mmHg = 0.0883 L Final answer: v = 0.0883 L

Chemistry
Sodium reacts with chlorine gas according to the reaction:\ 2 Na (s) + Cl2 (g) ---> 2 NaCl (s) What volume of chlorine gas, measured at 687 mmHg and 313 K, is required to form 275 g of NaCl?

Chemistry
Is this correct? (755 mmHg)(400.0cm^3)/298 K = (P2)(50.0cm^3)/(358 k)

Chemistry
If a gas has a volume of 400.0 cm cubed at a pressure of 755 mmHg and a temperature of 25 degrees celsius, what would be its pressure (in atm) at 85 degrees celsius if the volume is reduced to 50.0 cm cubed?

Chemistry
A tank contains 0.450 kg of oxygen(O2) compressed into a volume of 2.32 L. Estimate the gas pressure (in atm) inside the tank at 5 degrees celsius. Do I convert 0.450 kg from grams to moles, and if I do, do I use the molar mass of oxygen?

Chemistry
Convert 125000 Pa to psi

chemistry
A tank contains 0.450 kg of oxygen(O2) compressed into a volume of 2.32 L. Estimate the gas pressure (in atm) inside the tank at 5 degrees celsius.

chemistry
1) Convert 0.525 atm to kPa 2) Convert 125000 Pa to psi

Chemistry
I'm having a hard time figuring these out. Please help me on them! For the reaction Fe2O3 + 3 Co = 2 Fe + 3 CO2: a) how many moles of Fe can be produced from 75 moles Co? b) how many moles of CO2 can be produced from 15 moles of Fe2O3? c) what is the maximum amount (in ...

english
what are values and attitudes?

Chemistry
Hydrogren, a possible future fuel, can also be obtained from other compounds such as ethanol. Ethanol can be made from the fermentation of crops, such as corn. How much hydrogen in grams can be obtained from 1.0 kg of ethanol (C2H5OH)?

Chemistry
The rock in a lead ore deposit contains 84% PbS by mass. How many kilograms of the rock must be processed to obtain 1.0 kg of Pb?

chemistry
How many butane molecules are present in a sample that contains 5.0 moles of butane? (Butane- C4H10) What would be the mass of 75 moles of butane?

Math
Use the counting principle to determine the number of different arrangements of bicycles that are possible.

Math
Two balls are to be selected without replacement from a bag containing one red, one blue, one green, one yellow, and one black ball. How many points are there in the sample space?

Math
Why is ounces abbreviated with oz.?

SCIENCE
HOW MANY PEOPLE DOES IT TAKE TO BUILD A GREEN ROOF?

chem
what do the coefficents in a balanced equation mean?

chemistry
I have two questions. 1. How do I predict the formula of ionic compounds when one is a polyatomic ion? Example: Al (+3) and SO4(-2). 2. How would I obtain the charge of Hg in the formula HgCl2?

chemistry
72.4/97.82*100?

chemistry
Determine the percent yield for the reaction between 98.7g of Sb2S3 and excess oxygen gas if 72.4g Sb4O6 is recovered along with an unknown amount of sulfur dioxide gas.

Writing
I need a sentence with the words "loose" and "folklore"? Help?