Thursday
October 23, 2014

Posts by Emily


Total # Posts: 2,343

math anaylsis
x(132-3x) is the same exact thing as 132x-3x^2. x(132-3x) represents the area of the two pens together, with the length being 132-3x and the width being x.
September 22, 2009

math anaylsis
I just asked this same exact question yesterday, maybe we're in the same class! lol THIS IS WHAT I WROTE + REPLIES: "A rectangular pasture is subdivided into two equal pens. Using the barn as one side and 132 m of fencing for the rest, find the value of x that gives ...
September 22, 2009

Precalculus
Ohhhh I totally get it now!!! Thanks! :D
September 22, 2009

Precalculus
"A rectangular pasture is subdivided into two equal pens. Using the barn as one side and 132 m of fencing for the rest, find the value of x that gives the maximum area, and A(x)." It gives no diagram whatsoever, so I have no idea if all the sides are the same length ...
September 22, 2009

Honors Chemistry
Oh I see. Like ordering the energy levels of the elements, right? Like elements with red flames have a lower energy level than an element with a violet colored flame..
September 20, 2009

Honors Chemistry
We did a lab in class on Friday where we stuck a metal loop in various chemicals and stuck it in the flame of a Bunsen burner and we observed the flame's colors as the different metals went in. For every lab we do, we have to write a writeup which involves a graph. How ...
September 20, 2009

science
I think it's Melvin Calvin :)
September 20, 2009

Precalculus
Ohhhh duh!! I can't believe I totally overlooked that. Thanks Reiny!! :D
September 20, 2009

Precalculus
"Show that x^6 - 7x^3 - 8 = 0 has a quadratic form. Then find the two real roots and the four imaginary roots of this equation." I used synthetic division to get the real roots 2 and -1, but I can't figure out how to get the imaginary roots. I checked HotMath but...
September 20, 2009

MATH 157
Use the midpoint formula: x coordinate: (1st_x + 1st_y)/2 y coordinate: (2nd_x + 2nd_y)/2 So you could put it into an equation like this: 2 = (0 + x)/2 (for the x coordinate) -8 = (0+ y)/2 (for the y coordinate) I know it may have seemed confusing how I wrote it out, so please...
September 20, 2009

AP English 11
Ohhhhh I totally get it!! Thanks SraJMcGin and Ms. Sue! :D
September 17, 2009

AP English 11
Tomorrow in class, we have to write an essay about the play "The Crucible". This was the prompt our teacher gave us: "How was the play true? 1)when it was written 2)about when it happened 3)today as it is read" Does ANYONE understand this prompt and what it...
September 17, 2009

Precalculus
I'm HOPING this is the last problem I need help on.. :-/ List the possible rational zeros of f using the rational zero theorem. f(x) = 2x^3 - x^2 + 5x + 6 I applied the rational zero theorem, but none of the factors worked :(
September 17, 2009

Precalculus
Ohhh I see. Thanks so much!! :D
September 17, 2009

Precalculus
"An aquarium with length x, width x-10, and height x-5 holds about 750 cubic feet of water. Find all real solutions of the equation (I wrote it) 750 = x(x-10)(x-5)." I got the volume equation correct, right? I've tried dividing the factors of -750 by the factors ...
September 17, 2009

Precalculus (algebra review)
Omg. I feel like an idiot *bangs head against wall*. Soooo it would be (3x-2)(9x²+2x+4)?
September 16, 2009

Precalculus (algebra review)
grrr i mean [2/3]x in the middle of the second equation
September 16, 2009

Precalculus (algebra review)
Never mind, I think I just got it xD is this what it looks like factored out? (x - 2/3)(x^2 + [2/3] + 12)
September 16, 2009

Precalculus (algebra review)
My mind is coming to a blank as to how to factor out this polynomial: 27x^3 - 8 Any help is greatly appreciated!! :D
September 16, 2009

Pre-Algebra
1. 33 2. -26 3. 40 4. -69 5. -16 6. 12 7. -82 8. 33 9. 72 10. -43 11. 99 12. -73 13. 76 14. 181 TADA!
September 15, 2009

Algebra
13 is 76
September 15, 2009

Algebra
WHAT IS 13!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!!
September 15, 2009

Pre-Algebra
I am awesome!!!!
September 15, 2009

Geometry
Find the value of the variable and VW if V is between U and W. UV=2,VW= 3x, UW=29 UV = r, VW = 6r, UW =42 UV = 4p - 3, VW = 5p, UW =15 UV = 3c+29, VW = -2c-4, UW = -4c Need a site to explain how to do these. Teacher not clear on explaining.
September 15, 2009

Precalculus
Never mind, I figured it out xD
September 15, 2009

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

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