Wednesday

October 7, 2015
Total # Posts: 300

**Algebra**

Which would be the inverse of this: Let f(x)=(x+3)(2x-5) f^ (-1) x = (5x - 3)/ (2x + 1) f^ (-1) x = (5x + 3)/ (2x - 1)
*July 29, 2009*

**Algebra**

Totally confused and have 5 more problems like this. Can someone explain each step for these questions? Thanks! Let f(x) = e^x–2 + 3. (a) Describe in words how the graph of f can be obtained from the graph of y = e^x. (b) What is the domain of f? (c) What is the range of ...
*July 28, 2009*

**Algebra**

Yes here they are (a) Describe in words how the graph of f can be obtained from the graph of y = e^x. (b) What is the domain of f? (c) What is the range of f? (d) What is the y-intercept? State the approximation to 2 decimal places (i.e., the nearest hundredth). (e) What is ...
*July 28, 2009*

**Algebra**

Totally confused! Got 5 more of these to do and need some guidence please. Let f(x) = e^x–2 + 3. (a) Describe in words how the graph of f can be obtained from the graph of y = e^x (b) What is the domain of f? (c) What is the range of f? (d) What is the y-intercept? State ...
*July 28, 2009*

**Algebra**

How would I calcualte these in a calculator to find the Logarithm of these abd round to four decimal places? log 8 1og 93,100 log 0.082
*July 27, 2009*

**Algebra**

Not too good with math, actually i am no good at it.
*July 23, 2009*

**Algebra**

I wasn't sure but it is A then?
*July 23, 2009*

**Algebra**

Find all of the zeros of the polynomial function and state the multiplicity of each. f (x) = (x^2 – 16)^2 A. – 4 with multiplicity 2 and 4 with multiplicity 2 B. – 4i with multiplicity 2 and 4i with multiplicity 2 C. 4 with multiplicity 2 D. 4 with multiplicity ...
*July 23, 2009*

**Algebra**

Thanks I chose B 10.4 Million. I am confident that this is the correct answer. Am I correct?
*July 22, 2009*

**Algebra**

The function w(x) = – 0.01x^2 + 0.27x + 8.60 can be used to estimate the number of selfemployed workers in the U.S., in millions, x years after 1980. How many self-employed workers were there in the year 1995? A. 9.8 million B. 10.4 million C. 11.15 million D. 14.9 ...
*July 22, 2009*

**Algebra**

So based on the explanation you provide the answer would be??? what i have below? B. Upward to the left and downward to the right ??
*July 20, 2009*

**Algebra**

Which of the following describes the end behavior of the graph of the function f(x) = –2x^5 – x^3 + x – 5? A. Downward to the left and upward to the right B. Upward to the left and downward to the right C. Downward to the left and downward to the right D. Upward...
*July 20, 2009*

**Algebra**

So based on that the answer would be B. Upward to the left and downward to the right ??
*July 20, 2009*

**Algebra**

Which of the following describes the end behavior of the graph of the function f(x) = –2x^5 – x^3 + x – 5? A. Downward to the left and upward to the right B. Upward to the left and downward to the right C. Downward to the left and downward to the right D. Upward...
*July 20, 2009*

**Communication Theory**

Thanks for all your help!
*July 18, 2009*

**Communication Theory**

So he could not say his tests were vaild unless others could verify the results?
*July 18, 2009*

**Communication Theory**

The same tests under different conditions? Or using different subjects? I am lost on this one
*July 18, 2009*

**Communication Theory**

Further testing. But if he did the same test over and over, he concluded that others would get the same result. So could it be that others results might vary?
*July 18, 2009*

**Communication Theory**

Can he not say that there isn't a connection between the two variables?
*July 18, 2009*

**Communication Theory**

I would say that Professor Nostradamus would not be able to say that his model or theoretical simplified version representation of the real world is an explanatory device, although it can be used to play an important suggestive role in the formulation of his theory. Any thoughts?
*July 18, 2009*

**Communication Theory**

Professor Nostradamus conducted an empirical or observed communications study in his laboratory where he convincingly found a connection between two variables. The link concluded that Variable “X” always increased when the subject was exposed to Variable “Y”...
*July 18, 2009*

**Communication Studies**

Yes these are great! Thanks!
*July 16, 2009*

**Communication Studies**

I was referring to the Above the influence campaign. Just the commercials in general. I was going to reference the site that promotes "Above The Influence"
*July 16, 2009*

**Communication Studies**

Would the "above the influence" campagin against drugs be considered including enthymemes in their commericals? Could this be a possible example of a social issue today?
*July 16, 2009*

**Communication Studies**

I guess these would work, but how would I identify the enthymeme? Who could I use as an example that used an enthymeme in their speech?
*July 16, 2009*

**Communication Studies**

Yes these are good examples, and I found this site, but I need an issue current to 2009. Any ideas? Thanks!
*July 16, 2009*

**Communication Studies**

Give an example of an enthymeme about an important political/social issue current to today.
*July 16, 2009*

**Algebra**

Do we use the FOIL method here? This is what I got.. (x+3) (x-5) < 0 (x+3<0 and x-5>0) or (x+3>0 and x-5<0) (x<-3 and x>5) or (x>-3and x<5) (x<-3 and x>5) or (-3 < x < 5) -3 < x < 5 Is any of this correct?
*July 14, 2009*

**Algebra**

Please solve: (x+3)(x-5) < 0
*July 14, 2009*

**Communication Studies**

An objective theory is good in the eyes of an interpretive researcher if the explanation of communication behavior leads to further understanding of ________________. ?
*July 13, 2009*

**Algebra**

This is what I thought to begin with! Thanks for the help!
*July 7, 2009*

**Algebra**

Find the solutions of the equation 3x^2 – x – 4 = 0.
*July 7, 2009*

**Algebra**

8x = 5(26-x)
*July 5, 2009*

**math**

if i own 6/7 of a business and sold 1/5, how much do I still own
*July 5, 2009*

**Algebra**

Babylonian Problem - circa 1800 BC An area, A, consisting of the sum of two squares is 1000. The side of one square is 10 less than 2/3 of the side of the other square. What are the sides of the squares?
*June 30, 2009*

**Algebra**

n2 should be n^2, so n^2 + 12n + 36
*June 29, 2009*

**Algebra**

Please simplify sqrt n2+ 12n + 36
*June 29, 2009*

**Math**

whats the answer to 2 raised to 4x+1=3 raised to 1-x
*March 29, 2009*

**Organic Chemistry 1**

Thank you!! =]
*October 24, 2008*

**Organic Chemistry 1**

Why does iodine absorb organic molecules? This question is referring to the effect of the iodine chamber used in TLC.
*October 24, 2008*

**Physics**

vf= sqrt( (2 Kef)/m)
*October 15, 2008*

**math**

12, it's just to multiply 4 times 3 and you will know
*September 12, 2008*

**algebra 1 with pazzazz**

what did they call the duck who became a test pilot
*April 6, 2008*

**Math- consecutive intigers**

what is an intiger
*February 18, 2008*

**physics**

a freezer in a refrigerator takes 2 hrs to comvert 2.15kg of water initially at 21.5 degrees celsius to just frozen ice. calculate the rate at which the reezer absorbs heat.
*January 20, 2008*

**physics**

an immersion heat can supply heat at a rate of 5.2 x 10 to the power of 2 joules per second. calculate the time that it wil take to completly evaporate 1.25 x 10 to the power of minus 1 kg water initially at a temperature of 21 degrees celsius
*January 20, 2008*

**physics**

A 5.0 MULTIPLIED BY 10 TO THE POWER OF 2g aluminium block is heated to 350 degrees celcius. determine the number of kilograms of ice at 0 degrees celcius that the aluminium block will melt as it cools.
*January 20, 2008*

**English- rhyme schemes**

I counted eight syllables in teh first line of "Full Fathom Five" then seven syllables in the other lines. So the meter isn't iambic heptameter? Then how do I answer the question about meter? Sorry this is just confusing for me. Thanks for the help!
*December 26, 2007*

**English- rhyme schemes**

So is the meter iambic heptameter?
*December 26, 2007*

**English- rhyme schemes**

What is the rhyme scheme of William Shakespeare's "Full Fathom Five" and "Where the Bee Sucks There Suck I" ? Most of Shakespeare's poems are in iambic pentameter but these two aren't.
*December 26, 2007*

**Earth Science**

What is a temperature inversion? What causes major temperature inversions in te atmosphere?
*December 14, 2007*

**Computers**

How do you clear the cache on the computer?
*November 20, 2007*

**History, Art**

I need to find a picture of 2 paintings: Crimson Rambler by Philip Hale and Automat by Edward Hopper. I also need some assistance with this assignment involving these two paintings. I have to outline a story I would write about the woman in the paintings(I'm supposed to ...
*November 15, 2007*

**Mathematics**

oh, okay, so because a(squared)+b(squared)=c squared, I just substitue for cos sin, thanks.
*November 6, 2007*

**Maths**

sorry, but I don't get it...
*November 6, 2007*

**Maths**

In a family of four children, what is the probability that there are at least two girls if the eldest child is a girl? a)15/16 b)7/16 c)3/4 d)7/8 e)3/8 I'm not exactly sure how to even approach this problem; someone pretty please help me.
*November 6, 2007*

**Algebra2**

The cable company has two plans: Plan 1- Flat fee of $45 a month Plan 2- $15 a month plus 45 cents per minute What two equations would you use to graph the two plans? After how many minutes does it not make a difference which plan you use?
*October 27, 2007*

**maths**

I have an illustration in my book of a quadrilateral inside a circle. The quadrilateral is ABCD; AB is a vertical line and then AC and BD are the same length, but AC slopesd downward and BD upwards. Finally, there's CD; it's not vertical, as it slopes upward from D to ...
*October 25, 2007*

**maths**

he has a probability of 1:19?
*October 25, 2007*

**is it right?**

is 1:19 the correct answer? Because, the more I think about it, the more confused I get since there are 20 students in the class, but it has to be 19, since Keshawn can't be partnered with himself, right?
*October 25, 2007*

**maths**

Keshawn and Samantha are in a science class with 18 other students. The teacher randomly divides the class into 10 pairs of laboratory partners. Whar is the probability that Keshawn and Samantha are lab partners?
*October 25, 2007*

**English- poetry**

What is the definition of volta? How does the volta change the mood of a poem?
*October 23, 2007*

**one more thing, though**

oh, okay! thanks a million! :)
*October 19, 2007*

**one more thing, though**

I get where the five is coming from, since that's the remainder of letters, but where are you getting the four from?
*October 19, 2007*

**maths**

oh, okay, wow, so that's the metohd; I get it now; thanks! before I had no idea how to even set up the equation, but I'm strating to see the pattern! :D
*October 19, 2007*

**maths (reword)**

how many possible combinations there were and thank you very much for your explanation :)
*October 19, 2007*

**maths**

The number of arrangements of five letters from the word 'magnetic' that contain the word net is: a)60 b)100 c)360 d)630 e)720 we're still doing this at school and I still don't get it; since I have to use three of the eight letters I only have five left and ...
*October 19, 2007*

**maths**

oh, thank you so much!
*October 17, 2007*

**maths**

oh, it's not my keyboard, I guess it's not letting me post the answers in column, well, anyways, they are A) 360 B) 420 C) 840 D) 2520 E) 7560 again, I'm so sorry, but I really could use some help, please.
*October 17, 2007*

**maths**

oh, sorry again, I thought I'd typed it, but my keyboard keeps running low on battery... A 360 B 420 C 840 D 2520 E 7560
*October 17, 2007*

**maths**

sorry, I know I already asked this, but I called some of my friends and it seems I copied down the homework wrong. The question is the number of arrangements of five letters from the word 'magnetic' that end in a vowel is: A 360 B 420 C 840 D 2520 E 7560
*October 17, 2007*

**maths**

Hi again! Today in maths we were looking at ratios and probabilities, then we got this for homework and not only do I have no idea how it ties in with today's lesson, but I also have no idea how to do it. The number of five letter words from the word 'magnetic' ...
*October 17, 2007*

**maths**

oh, you're absolutely right; I was having such a hard time thinking that the least number of words could be 360. Thanks
*October 17, 2007*

**maths**

Hi again! Today in maths we were looking at ratios and probabilities, then we got this for homework and not only do I have no idea how it ties in with today's lesson, but I also have no idea how to do it. The number of five letter words from the word 'magnetic' ...
*October 17, 2007*

**maths**

nevermind, after reading ahed in my maths book, I think I'm finally starting to get it; still, thank you for always helping me whenever I don't understand my homework! :)
*October 16, 2007*

**maths**

Find the equation of each line a) with an x intercept the same as 2x-5y=10 and parallel to x=4 b) with an x-intercept of -4 and a y-intercept of 6 please help me, I have no idea how to do these
*October 16, 2007*

**English- Canterbury Tales**

I need help comparing and contrasting The Wife of Bath abd The Clerk from Canterbury Tales.
*October 7, 2007*

**Algebra 2**

1. What is the first step for solving this system by substitution? 3x-2y=8 x+7y=10 2. How many solutions does this system of equations have? 3y-6x=12 y-2x=4
*October 5, 2007*

**Algebra 2**

1.) Write a system of equations that has NO solution. 2.) If you wanted to eliminate the y variables in the system of equations below, what would you multiply the first and second equations by?( Do not solve the equation) 2x-3y=8 7x-4y=11
*October 5, 2007*

**Algebra 2**

Can't anyone help me with these problems?:(
*October 4, 2007*

**Algebra 2**

1.) Write a system of equations that has NO solution. 2.) If you wanted to eliminate the y variables in the system of equations below, what would you multiply the first and second equations by?( Do not solve the equation) 2x-3y=8 7x-4y=11
*October 4, 2007*

**Algebra 2**

1.) Write a system of equations that has NO solution. 2.) If you wanted to eliminate the y variables in the system of equations below, what would you multiply the first and second equations by?( Do not solve the equation) 2x-3y=8 7x-4y=11
*October 3, 2007*

**English-Canterbury Tales**

I have to write a compare and contrast essay of 300 to 500 words on two characters. The characters have to be from the Wife of Bath, The Clerk's Tale, or The Merchant's tale. I am having trouble deciding which characters to write about. Which two characters would be ...
*October 2, 2007*

**Wife of Bath's**

1. Characterize the Wife of Bath's " philosophy" of marriage. Is this philosophy logical from her point of view? How? 2. What elements of the Wife of Bath's tale characterize it as a romance? I don't understand what #1. is asking me so I have no idea how ...
*September 26, 2007*

**Career in medicine?**

I am a senior in high school and I am considering going into medicine when I graduate. When I say medicine I don't mean nursing, I have always wanted to be a doctor. I will say that I am "financially challenged". I know that med school is expensive to say the ...
*September 22, 2007*

**psychology**

Is it possible that everything a person is or does is a function of the brain? Or are there other factors that influence who you are? I'm not sure that everything a person is is a function of the brain. I think factors like how and where you were raised effect who you are...
*September 11, 2007*

**english**

Could someone explain kenning to me? I have this assignment where I have to rename things using kenning and I don't understand what to do. A few examples of the words include, Teacher, Fireman, Police.
*September 4, 2007*

**english beowulf**

Who destroyed the Heorot and how? My answer: I think Grendel destroyed the Herot but I am not sure how. This story is hard to comprehend!
*August 31, 2007*

**English-Beowulf**

Who is Scyld? Where is he from? Where does he go? What does he do? Why does the poem begin here rather than with Hrothgar and Grendel? Scyld id Beowulf's father. Scyld was a Danidh king from the Scandion Lands. Scyld leaves to protect Lord Frea where he dies. The people ...
*August 31, 2007*

**English - Beowulf**

Who is Scyld? Where is he from and where does he go? What does he do? My problem is the version of Beowulf I read did not begin with a character named Scyld. There was actually no character by this name. At the beginning of the story I read there was a character by the name of...
*August 30, 2007*

**Math**

Find the axis of symmetry y = -x^2 + 3x - 3 22
*June 17, 2007*

**Math**

Tiffany can run 12 miles in the same time it takes her to bicycle 72 miles. If her bicycling rate is 20mi/hr faster than her running rate, find each rate. Let X = running rate, so X +20 = cycling rate. Since rate = miles/time, then time = miles/rate. Since the time for both is...
*June 17, 2007*

**math**

Does a trinomial have two coefficients? A trinomial can have three coefficients, or two and a constant.
*June 16, 2007*

**Math**

Find the axis of symmetry. y = -x^2+8x+2 4
*June 10, 2007*

**Math**

The demand and supply equations for a certain item are given by D = -5p + 40 s = -p^2+30p-8 Find the equilibrium price. Wouldn't you set demand equal to supply, and solve for P? I will be happy to critique your work.
*June 10, 2007*

**Math**

Find the constant term that should be added to make the following expression a perfect square trinomial. x^2-2x x^2+3x Take one half the second term, square it. 1/2 *2=`1, squred, 1 1/2 *3=3/2, squared, 9/4
*June 10, 2007*

**math**

How long must a guywire be to run from the top of a 16-ft pole to a point on the ground 6ft from the base of the pole? Goodness. Use the Pyth theorm on this.
*June 9, 2007*

**Math**

The equation h=-16t^2+112t gives the height of an arrow, shot upward from the ground with an initial velocity of 112ft/s,where t is the time after the arrow leaves the ground. Find the time it takes for the arrow to reach a height of 120ft. Put in h for 120, rearrange it into ...
*June 9, 2007*

**Geometry**

The length of a rectangle is 1cm longer than its width. If the diagonal of the rectangle is 4cm, what are the dimensions(the length and the width)of the rectangle? L=W-1 Diagonal = sqrt(L^2 + W^2) substitutuet for L in the second equation, solve for W.
*June 9, 2007*

**Algebra**

The base of a ladder is 14 feet away from the wall. The top of the ladder is 17 feet from the floor. Find the length of the ladder to the nearest thousandth. length^2=14^2 + 17^2
*May 27, 2007*