Thursday

October 2, 2014

October 2, 2014

Total # Posts: 2,317

**Precalculus**

"If 2 is a zero of a polynomial function f(x), name a factor of f(x)." Any help is greatly appreciated! :D
*September 15, 2009*

**Precalculus**

For our homework we had to read this one section which demonstrated the location principle (just in case this has a different name, I'll post it here:) "If P(x) is a polynomial with real coefficients and a and b are real numbers such that P(a) and P(b) have opposite ...
*September 14, 2009*

**9th grade**

what is an interior deserts
*September 14, 2009*

**Precalculus**

Ohhhhhh i totally get it now! Thanks!! :D
*September 14, 2009*

**Precalculus**

I usually know how to do these types of problems, but the second variable just threw me off balance.. 47. A rancher has 200 feet of fencing to enclose two adjacent rectangular corrals. What dimensions will produce a maximum enclosed area? (the diagram is of two adjacent ...
*September 14, 2009*

**home economics**

what is churned food turned into a thick liquid?
*September 13, 2009*

**7th grade history**

Why is history important to be studied? Include 3 events in history as supporting evidence. How are these events relevant today?
*September 13, 2009*

**US History**

Why is history important to be studied? Include 3 events in history as supporting evidence. How are these events relevant today?
*September 13, 2009*

**Math**

Would an estimate for the product of 34 and 56 be greater or less then the exact answer
*September 13, 2009*

**Wild Life Biology**

I don't know what you'd name it, but mothers generally defend their young if something they think is dangerous comes by. I think you could call that instinctive, anyway :)
*September 12, 2009*

**Math **

You're very close. However, you solved the equation like this: a^2 + b^2 = c 5^2 + 2^2 = c 25 + 4 = c 29 = c I think you forgot to mess with c^2: a^2 + b^2 = c^2 a^2 + 2^2 = 29^2 a^2 + 4 = 841 (once you subtract 4 from 841, you must take the square root of both sides) a^2...
*September 12, 2009*

**Math **

You solve for a using a^2 + b^2 = c^2 because it is the unknown value. I'm not exactly sure if that was what you were asking..
*September 12, 2009*

**MATH**

Does c=29? If so, use the Pythagorean Theorem and solve for a. a^2 + b^2 = c^2 a^2 + 2^2 = 29^2 a^2 + 4 = 841 ...
*September 12, 2009*

**algebra**

It gives you the value of x, so substitute that value into the first equation, like this: x + 3y = 2 x = 9 - 3y 9 - 3y + 3y = 2 9 = 2 Somehow, you get 9 = 2, which is DEFINITELY not correct, so maybe there was a typo in typing out the question?
*September 12, 2009*

**algebra**

All of the denominators in the equation have a common factor 4, so multiply both sides of the equation by that. 4( 5/2x + 1/4x = 5/4 + x ) 10x + x = 5 + 4x Bring the variables to one side of the equation and all the constants to the other side and solve for x.
*September 12, 2009*

**algebra**

-0.6x < -12 Divide both sides by -0.6. Because you are dividing by a negative number, you must flip the equality sign. x > 20 I hope you are actually looking to get HELP from these answers, not just copying the answers....
*September 10, 2009*

**algebra**

The coordinate (-4,5) is an (x,y) coordinate -- so, x = -4 and y = 5. Plug x and y into the equation 4x + 8y = 1 4(-4) + 8(5) = 11? -16 + 40 = 11? 24 = 11? 24 does not equal 11, so the coordinate (-4,5) is not a solution of the equation.
*September 10, 2009*

**Chemistry conversions check**

Oh okay thank you very much! :D
*September 10, 2009*

**Chemistry conversions check**

I'm sooooooo not sure if I'm doing this right, but can someone check it please? Thanks :)) 5) Determine the mass in grams of 3.01 x 10^23 atoms of Cl (element) I got 17.5 grams...is this right?
*September 10, 2009*

**english**

what was the plot for the book twisted?
*September 7, 2009*

**algebra 1**

Area = L * W Perimeter = 2L + 2W W = L - 80 So, plug in the width formula into the perimeter equation, which would look like this: 640 = 2L + 2(L-80) 640 = 2L + 2L - 160 640 = 4L - 160 800 = 4L L = 200 It looks like you don't even need the information about the area of the...
*September 3, 2009*

**Precalculus**

Yeah it confuses me too :( thanks for your help though, I appreciate it! :D
*September 3, 2009*

**Precalculus**

I know i isn't considered a real coefficient, but when you multiply it out shouldn't there be an ix as you're working it out?
*September 3, 2009*

**Precalculus**

Write the simplest polynomial equation with real coefficients having roots -i and 4. I have noooooo idea how to even start this one :( I thought you could start backwards with synthetic substitution but it didn't work. Any help on this is greatly appreciated!! :D
*September 3, 2009*

**Precalculus**

I'm sorry I'm posting so many questions, I promise this is the last one tonight :) The leading coefficient of a cubic polynomial P is 2, and the coefficient of the linear term is -5. If P(0)=7 and P(2)=21, find P(3). I DO NOT understand how to even start this one. I ...
*September 1, 2009*

**Precalculus**

Whoops, I meant we had to find the value of the function K(x^2), not where K(x)=x^2. Sorry about that lol
*September 1, 2009*

**Precalculus**

K(x) = x^2(x^2 + 16), where K(x) = x^2. I got K(x^2) = x^8 + 16x^4. Is this right? Thanks :))
*September 1, 2009*

**science**

The formula for density is p = m/v, where p is density, m is mass, and v is volume. First, you would figure out the volume by: V = 3 cm * 3 cm * 3 cm V = 27 cubic centimeters Plug everything that you know into the formula: p = 27g / 27cm^3 p = ? g/cm^3 Hope this helps! :)
*September 1, 2009*

**Reading**

Check out Sparknotes, Cliffsnotes, PinkMonkey, etc. to see if any of the summaries answer your question. Hopes this helps!
*September 1, 2009*

**Precalculus problems check?**

Thank you!! :D
*September 1, 2009*

**Precalculus problems check?**

Sorry the last "anonymous" was me. xD
*September 1, 2009*

**Precalculus problems check?**

By the way, in the first problem in the parentheses it's supposed to be like "one minus the square root of 2". Sorry if that wasn't clear :-/
*September 1, 2009*

**Precalculus problems check?**

Did I do these two problems right? P(1-sqrt2) = 8x - 4x^2 P(1-sqrt2)= -4 P(2/x)= 8x - 4x^2 P(2/x) = x-1 I think when the answers are plugged back in, the equation is supposed to equal zero, but I don't get this; however, I always redo each problem with different methods ...
*September 1, 2009*

**ACCOUNTING CONFUSED!! HELP**

Andy Wright,D.D.S., opened a dental practice on January 1, 2008. During the first month of operations the following transactions occurred. 1. Performed services for patients who had dental plan insurance. At January 31, $875 of such services was earned but not yet recorded. 2...
*September 1, 2009*

**U.S. History**

Thank you! :)
*August 28, 2009*

**U.S. History**

Why didn't Britain just raise taxes in England during the French - Indian War?
*August 28, 2009*

**Macroeconomics**

Why is the tax multiplier smaller than the government spending multiplier?
*August 25, 2009*

**Macroeconomics**

Why is the real investment multiplier smaller for local communities then for the nation?
*August 25, 2009*

**math**

Oh DUH that's what place value is. Maybe it's time I go back to school!
*August 17, 2009*

**math**

I don't think I know what place value is, but it sounds like there is enough books I guess. It depends on how many books is required for each student, which is not given here.
*August 17, 2009*

**MATH**

that makes no sense at all because (1) you have ten TIMES as much flour so why would you divide and (2) 1.1 is not anywhere close to being in between 40 and 50
*August 17, 2009*

**MATH**

A baker needs between 40 and 50 pounds of a flour-sugar mixture that contains ten times as much flour as sugar. What are the possible weights of flour the baker can use? Would I set it up like: 40+10x<x<50+10x
*August 17, 2009*

**CHEMISTRY**

What do you think happens to mass when chages take place?
*August 16, 2009*

**ALGEBRA 2**

Mrs. Smith drove at a rate of 45 mi/h from her home to her sister's house. She spent 1.5 hours having lunch with her sister. She then drove back home at a rate of 55 mi/h. The entire trip, including lunch, took 4 hours. How far does Mrs. Smith live from her sister? I set ...
*August 16, 2009*

**ALGEBRA 2**

thanks. i had that but instead of subtracting i was adding for some reason.
*August 16, 2009*

**ALGEBRA 2**

A plane takes off from an aiport and flies east at a speed of 350 mi/h. Ten minutes later, a second plane takes off from the same airport and flies east at a higher altitude at a speed of 400 mi/h. How long does it take the second plane to overtake the first plane? I have ...
*August 16, 2009*

**math**

Okay great thank you so much that makes much more sense!
*August 16, 2009*

**math**

I have no idea where to start! *A quick quiz consists of 3 multiple choice problems, each of which has 4 answers, only one of which is correct. If you make random guesses on all 3 problems, (a) What is the probability that all 3 of your answers are incorrect? (b) What is the ...
*August 16, 2009*

**AP English**

Thank you! :)
*August 15, 2009*

**AP English**

I have to read the Grapes of Wrath and find 24 quotes to analyze. Some of the quotes have to be biblical allusions (from even-numbered chapters), and the others have to be a rhetoric device. I'm almost done with the book, but I've only found maybe 13 quotes. Even our ...
*August 15, 2009*

**math**

Woah. I was totally wrong lol. I guess the my summer out of algebra II has been showing xD
*August 15, 2009*

**math**

1.438244794498223 ---> whenever you need a scientific calculator, check out the one on the ecalc website.
*August 15, 2009*

**trig**

I need to find all solutions of the given equations for the indicated interval. Round solutions to three decimal places if necessary. 1.) 3sin(x)+1=0, x within [0,2pi) 2.) 2sin(sq'd)(x)+cos(x)-1=0, x within R 3.) 4sin(sq'd)(x)-4sin(x)-1=0, x within R 4.) sin(x)+1=cos(x...
*June 21, 2009*

**Geography**

How long s the amazon river
*June 17, 2009*

**poetry**

What is the significance of Cerberus in Sylvia Plath's poem "Fever 103"?
*May 28, 2009*

**physics**

Carol drops a stone into a mine shaft 122.6 m deep. How soon after she drops the stone does she hear it hit the bottom of the shaft?
*May 26, 2009*

**English**

The following sentence contains a dangling or misplaced modifier. Rewrite the sentence so that its meaning is clear. 7. Walking the dogs in the park on Sunday afternoon, it began to rain hard. I totally don't understand how to rewrite this sentence :( Any help is greatly ...
*May 25, 2009*

**math**

I need help for my math homework (x+6)(x-2)
*May 25, 2009*

**11th grade**

my question is how do i get this in simplest form -15 - 23 and 4/9 * 3/2
*May 18, 2009*

**math**

In accounting, what is the form that accompanies an employer's payment of social security, Medicare, and employee's federal income taxes?
*May 18, 2009*

**A Midsummer Night's Dream, Act 4**

"The fourth act opens and ends with Bottom at center stage. What is your opinion of Bottom's character? How might he be the antithesis, or opposite, of Theseus's character?" Does anyone know how to answer the last part of the question? I didn't even ...
*May 9, 2009*

**spanish**

I think it would be C. estas, because it is the conditional tu form of the verb "to be". You wouldn't use A. eres because that is the unconditional form. Guapo means good-looking, which can change any day. (sounds sad but true!)
*May 9, 2009*

**Math**

How do you subtract fractions? How do you divide frations?
*April 29, 2009*

**Math**

A class is made up of 10 boys and 2 girls. Half of the boys wear glasses. A student is selected at random from the class. What is the probability that the student is a boy with glasses? My Question is, I don't know how to do Probability.
*April 27, 2009*

**6th grade math**

45 miles in 60 minutes
*April 22, 2009*

**English**

Attacked, assaulted, mugged, etc.
*April 21, 2009*

**Math**

No problem :) glad I could help!
*April 20, 2009*

**Math**

Correct me if I'm wrong, but there are no two consecutive integers that add up to 48. However, if you were finding two consecutive NUMBERS that add up to 48, your equation would look like this: x + (x+1) = 48 x being the first number, (x+1) being the consecutive number. ...
*April 20, 2009*

**Honors Biology**

"Describe how antibodies are produced and what they do in the response to infection." I've been looking all over my textbook and the internet, but for the life of me I cannot find what I'm looking for! Any help is greatly appreciated!! :)
*April 20, 2009*

**math**

The word I got was "lantana", but I don't know what that has to do with math because it has to do with spikes on flowers. Google search "word descrambler" and try what you see.
*April 20, 2009*

**Math-Geometry**

Solve for X using the side-splitting theorem for a triangle: upper left= 6x-10, upper right= 5x, lower left= 4x+8, lower right=4x
*April 19, 2009*

**4th grade math**

i have a worksheet from my teacher that i dont really understand i was wondering if someone could help me please thank you very much Emily 4th grade
*April 18, 2009*

**10th grade Living Environment**

can u indentify 3 activities of a living and define them?
*April 15, 2009*

**science**

ok thank you!!!
*April 9, 2009*

**science**

Can you please help me!!!
*April 9, 2009*

**science**

I can't find them and it's not homework.
*April 9, 2009*

**science**

ok i have a couple questions. 1. How has life changed throughout Earth's history? 2.What are three things that fossils tell us about earth's past? 3.What is radioactive dating? how do scientists use parent and daughter elements to determine the age of a fossil? 4.What ...
*April 9, 2009*

**6th grade math**

84,508 write in word
*April 6, 2009*

**Physics**

Change the 7 minutes into seconds (60 seconds per minutes) and add that to the 29.45 seconds. Then divide 3000 by that number.
*March 29, 2009*

**american education**

Progressivism: a political and social term that refers to ideologies and movements favoring or advocating progress, change, improvement, or reform, as opposed to wishing to maintain things as they are. Reconstructionism: Reconstructionism attempts to re-establish historical ...
*March 29, 2009*

**Physics**

The goal of this problem is to find his speed in meters per second. This is technically meters DIVIDED by seconds, so divide 100 by 9.92. So, his average speed in the race was about 10.08 meters per second. Hope this made sense! :)
*March 29, 2009*

**Physics E=mc^2**

I don't know what kind of formula it is, but I know that E=mc^2 is ENERGY = mass * (the speed of light)^2
*March 29, 2009*

**French**

How do you say (a) What is your family like (b) When is your birthday in French?
*March 26, 2009*

**English Research Report**

These are all great ideas thank you very much!!!! :D :D
*March 25, 2009*

**English Research Report**

Our class has to write a research report on any controversial topic we choose from a list. I chose teenage pregnancies. However, we have to present the two sides of the issue we chose. Most of the articles and information I'm finding have to do with just statistics, and ...
*March 25, 2009*

**math**

You use the distributive property. Distribute the 15 to the 2 and the r and you'll get 15r + 30 (list the number with the variable first).
*March 25, 2009*

**Math**

Angie
*March 23, 2009*

**grade 9 algerbra HELP!!!! PLZ!!!**

betty is now three times as old as mike, but in five years she will be only twice as old as mike. how old is mike right now? i don't get what your suppose to do
*March 9, 2009*

**Math (excel formulas)**

I am finding absolute and relative differences in excel. I have a compared value of 1.00 (D6) and a reference value of 38.50 (D6). I found the absolute difference to be -37.50 (D6-D9). For the relative difference I took the compared value of 1.00 (D6) and subtracted the ...
*March 1, 2009*

**Stiochiometry**

Equation 2Mg+O2= 2MgO Lab data: Magnesium ribbon= .04 grams Magnesium Oxide= .09 2. Using the initial mass of magnesium, calculate the moles of oxygen and then moles of magnesium oxide produced. What is the mole ratio of the reactants? 3. Calculate the mass of magnesium oxide ...
*February 26, 2009*

**Math**

I needed to find the absolute and relative differences for these two stocks and write two complete sentences: MOD - 78.00 TRV- 3311.00 I found the absolute differences to be 3233.00 and -3233.00 and the relative differences to be 98% and -4145% My sentences were The Travelers ...
*February 23, 2009*

**algebra 1 page 167 did you hear about...**

I got "The Farmer Who Named His Pet Rooster Robinson Because It Crew So?" I don't really get it... I think I did it wrong. Anyone understand?
*February 22, 2009*

**science**

what is the normal phase of neon?
*February 18, 2009*

**Finite Math**

In the book, there are 4 spaces reserved for skits and 3 spaces reserved for commercials. Since skits cannot be repeated, the 4 spaces for skits are: 5*4*3*2 Since commercials CAN be repeated, the 3 spaces reserved for commercials are: 3*3*3 So how you get the different ways ...
*February 17, 2009*

**science**

Where does convergent motion take place?
*February 12, 2009*

**Algebra II**

Ohhh ok I think I get it now thanks Reiny!! :D
*February 4, 2009*

**Algebra II**

In this set of eight problems, we have to match each equation with the correct description of its graph. However, these are test corrections I'm doing and I do not have the previous multiple choice answers so I can deduct from it, but can someone help me? The equation is ...
*February 4, 2009*

**Physics**

Ummm you can probably post them here, unless you're wanting to contact someone specific.....?
*February 4, 2009*

**English**

Please specify the book you're reading.
*February 4, 2009*

**Physics**

Haha thanks :)
*February 4, 2009*

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