# Posts by rebekah

Total # Posts: 478

**Check my precalc**

what is the f inverse of f(x)= ln(x-3) I got y= e^x - 4 Solve 8 times 10^(2x-7)=3 I do not know how to do this. Do i get 8 and 10 with the same base? How? Thanks!

*November 18, 2012*

**Finance**

An important source of temporary cash is trade credit, which does not actually bring in cash, but instead slows its outflow. Vendors often provide discounts for early payment. What is the formula to determine the effective interest rate if the discount is not utilized?

*November 17, 2012*

**Finance**

Your firm is considering the following three alternative bank loans for $1,000,000: a) 10 percent loan paid at year end with no compensating balance b) 9 percent loan paid at year end with a 20 percent compensating balance c) 6 percent loan that is discounted with a 20 percent...

*November 17, 2012*

**Finance**

Community Hospital has annual net patient revenues of $150 million. At the present time, payments received by the hospital are not deposited for six days on average. The hospital is exploring a lockbox arrangement that promises to cut the six days to one day. If these funds ...

*November 17, 2012*

**Finance**

St. Luke’s Convalescent Center has $200,000 in surplus funds that it wishes to invest in marketable securities. If transaction costs to buy and sell the securities are $2,200 and the securities will be held for three months, what required annual yield must be earned ...

*November 17, 2012*

**Check my precalc**

1. find without a calc log base 5 of cubed root of 25. I got x=(2/3) 2. ln base e of 3 I got 3 3. find the domain of y= log base 3 of (x/x-1) I got (negative infinity, 0)union (1, infinity) 4. y= (1/ln x) find the domain i got ( negative infinity, 1) but im pretty sure that&#...

*November 15, 2012*

**Adv Comp**

I am doing a paper on symbolism in the book, The Accidental tourist by Anne Tyler, specifically about the chair with wings and the dog. I need to find online sources of people that critic the book or talk about these symbols. They have to be credible sources. At the moment I ...

*November 11, 2012*

**chem- i reallyneed help**

so is it - 764.2?

*November 6, 2012*

**chem urgent!**

the h2o is ÄH°f = -285.8 kJ/mol

*November 6, 2012*

**check my precalc**

thanks are all the others correct?

*November 1, 2012*

**check my precalc**

Rewrite each of the following as a product of linear factors 1. x^2+3 My Answer: (x+iroot 3)(x-iroot3) 2. x^2-2x+3 MA: (x-(1+iroot2))(x-(1-iroot2)) 3. x^4+x MA: IM not sure how to do it! can you help? 4. x^5-x^4+5x^3 MA: x^3(x-(1+iroot19/2))(x-(1-iroot19/2)) 5. 3x^2+7 MA: NOT ...

*November 1, 2012*

**chem**

Calculate the amount of heat transferred when 2.06 g of Mg(s) reacts at constant pressure. 2 Mg(s) + O2(g) ¨ 2 MgO(s) ƒ¢H = -1204 kJ

*November 1, 2012*

**Adv Comp**

I need help coming up with a title for a review on the documentary Wordplay. I wrote about how the documentary give a lot of great information, but lacks a compelling plot throughout. I really wanted to make the title interesting by adding actual wordplay into it, but I can&#...

*October 30, 2012*

**Factoring**

thanks so much!!

*October 30, 2012*

**Factoring**

2x^2+3x-7 i cant find a zero to use synthetic division with this. They don't work. What am I doing wrong? Thanks!

*October 30, 2012*

**chem**

when is i8t ok to use M1V1=M2V2?

*October 30, 2012*

**Factoring- precalc**

im stuck on factoring (x-1)(2x^3+13x^2+8x-35) do i use synthetic division? if so what zero? thnks.

*October 29, 2012*

**Precalc factoring**

im stuck on factoring (x-1)(2x^3+13x^2+8x-35) do i use synthetic division? if so what zero? thnks.

*October 29, 2012*

**chem**

Because the oxide ion is basic, metal oxides react readily with acids. (a) Write the net ionic equation for the following reaction. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your answer.) FeO(s) + 2 HClO4(aq) Fe(ClO4)2(aq) + H2O(l...

*October 29, 2012*

**chem**

also do all strong acids and bases split?

*October 28, 2012*

**chem**

oh or do you have to write out the products as if every equation produced something and if it produces an insoluble then that is the percipitate?

*October 28, 2012*

**chem**

oh so even if the compound is soluble as long as it has a insoluble element(or ion) in either compounds it creates a percipitate 100% of the time?

*October 28, 2012*

**chem**

why will Na2CO3 + AgNO3 create a percipitate? I thought that one of the compounds has to be insoluble for it to form a percipitate? but according to the solubility rules they both are soluble

*October 28, 2012*

**adv comp/foods**

I have to review a restaurant. What criteria should i include in my paper?

*October 23, 2012*

**Precalc**

#1. (3x^3-4x^2-3x+4)/(x^3-5x) my answers: y-int: NONE x-int: 1, -1, and 4/3 x asymtope: x= 0 and +- square root of 5 y asym: y=3 If it crosses horiz asym: idk i need help on this #2. (x^4-7x^2+12)/(x^2-5x+4) x-int: -2, 2, and +- square root of 3 y-int: 3 x-asy: x= 4 and 1 y ...

*October 22, 2012*

**check my precalc**

#1. (3x^3-4x^2-3x+4)/(x^3-5x) my answers: y-int: NONE x-int: 1, -1, and 4/3 x asymtope: x= 0 and +- square root of 5 y asym: y=3 If it crosses horiz asym: idk i need help on this #2. (x^4-7x^2+12)/(x^2-5x+4) x-int: -2, 2, and +- square root of 3 y-int: 3 x-asy: x= 4 and 1 y ...

*October 22, 2012*

**Precalc**

#1 For what positive numbers will the cube of a number exceed four times its square? #2 For what positive numbers will the cube of a number be less than the number? thanks

*October 21, 2012*

**precalc**

#1 For what positive numbers will the cube of a number exceed four times its square? #2 For what positive numbers will the cube of a number be less than the number? thanks

*October 21, 2012*

**biology, test tom!**

i know. but if a plant can do both. how is that an adaption?

*October 15, 2012*

**biology, test tom!**

how is plants doing sesxual and asexual an adaptation?

*October 15, 2012*

**Check my precalc**

Find the verticle, horizontal, and oblique asymtopes if any. #1 (x^2 +6x+5)/2x^2 +7x+5 y= (1/2) and x= -5/2 and -1 #2 (8x^2 +26x-7)/4x-1 y=2x+7 and x=1/4 #3. (x^4-16)/(x^2-2x) x= 0 and 2 y= x^2 +2x+4 thanks!

*October 14, 2012*

**Bio- Botony**

How is reproducing sexually and asexualy in plants an adaptation? thanks

*October 13, 2012*

**chem**

net ionic equation. Aqueous acetic acid (HC2H3O2) is neutralized by aqueous barium hydroxide. i got H^+(g) + OH^-(g) --> H_2O(l) but it is wrong. are my states of matter wrong?

*October 13, 2012*

**chem**

Aspirin (C9H8O4) is produced from salicylic acid (C7H6O3), and acetic anhydride (C4H6O3): C7H6O3 + C4H6O3 ¨ C9H8O4 + HC2H3O2 . (c) What is the theoretical yield of aspirin if 189 kg of salicylic acid is allowed to react with 128 kg of acetic anhydride? (d) If the ...

*October 7, 2012*

**precalc**

what is the minimum degree of a polynomial. How do I find that and how do I find the maximum nuber of turnin points. I know it has to do with n-1 but Idont know how

*October 7, 2012*

**science- please check my work.**

Aspirin (C9H8O4) is produced from salicylic acid (C7H6O3), and acetic anhydride (C4H6O3): C7H6O3 + C4H6O3 ¨ C9H8O4 + HC2H3O2 How much salicylic acid is required to produce 2.0 102 kg of aspirin, assuming that all of the salicylic acid is converted to aspirin? for ...

*October 7, 2012*

**check my precalc**

#1. Make up a polynomial that has the following characteristics: crosses the x axis at 1 and 4, touches the x axis at 0 ad 2. and is above the xaxis between 0 and 2. I did (x+1)(x-4)(x^2)(x-2)^2 #2. its an illustration but one of the queestino says what is the minimum degree ...

*October 7, 2012*

**chem**

i cannot find my exact work but i converted 26.5 gal C8H18 to ml then used the density to get grams then converted grams to moles of C8H18 then to moles of )2 then grams of O2

*October 6, 2012*

**chem**

The complete combustion of octane, C8H18, the main component of gasoline, proceeds as follows. 2 C8H18(l) + 25 O2(g) ¨ 16 CO2(g) + 18 H2O(g) Octane has a density of 0.692 g/mL at 20‹C. How many grams of O2 are required to burn 26.5 gal of C8H18? i got 1....

*October 6, 2012*

**precalc**

is the degree of a polynomial the number of x's or just the highest numbe of x's in a monomial ex: f(x)=-3x^2(x+2)^3

*October 4, 2012*

**satp conditions**

Calcium hydride reacts with a vast excess of water to form calcium hydroxide and hydrogen gas. (See the periodic table.) (a) Write a balanced chemical equation for the reaction. (Use the lowest possible coefficients. Include states-of-matter under SATP conditions in your ...

*October 4, 2012*

**check my precalc**

ohhhh gotcha thanks!!

*October 4, 2012*

**check my precalc**

Thanks, so is the degree all of the x added together or jut the greatst one bcause tthen wouldnt 12 be 3 instead of 5?

*October 4, 2012*

**check my precalc**

State if it is a polynomial. If yes, say the degree. 2.f(x)=5x^2 +4x^4 4.f(x)=3-(1/2x) 6.f(x)=x(x-1) 8.f(x)=sqaure oot of x (square root of x-1) 10.f(x)=(x^2-5)/x^3 12. f(x)=-3x^2(x+2)^3 my answers 2.yes, 6 4.yes, 1 6.yes, 3 8.no 10.no 12.yes, 5 thanks!!

*October 4, 2012*

**spanish**

what is a word in spanish that starts with a t the means like muy muy muy(very)

*October 3, 2012*

**bio- botony**

The water pressure that pushes water and sugar from sugar source to sugar sink is referred to as _____. The answer is bluk flow but idk why. Why isnt i translocation or transpiration?

*October 2, 2012*

**bio**

what is the difference between translocation and transpiration? and do they both occur in xylem and phloem?

*October 2, 2012*

**check my precalc**

Thanks so much!

*October 1, 2012*

**check my precalc**

#1. solve x^2-1<0 I got (-1,1) #2 x(x+1) >20 I got (-infinity, -4) U (5,infinity) #3 what is the domain of this function? f(x)= squre root of (x-3x^2) i got [-1/3,0] thanks!!!

*October 1, 2012*

**Precalc**

# 1 a special window has the shape o a rectangle surmounted by an eqilatera tiangle. ifthe perimeter o the winow is 16 ft, what dimensions will admit te most light (area of triangle= suarre root of 3/4 times x2.

*September 30, 2012*

**chemistry**

A sample of the male sex hormone testosterone, C19H28O2, contains 4.09 1021 hydrogen atoms What is the mass of this sample in grams? i got 0.0697g but its wrong

*September 30, 2012*

**precalc**

# 1 a special window has the shape o a rectangle surmounted by an eqilatera tiangle. ifthe perimeter o the winow is 16 ft, what dimensions will admit te most light (area of triangle= suarre root of 3/4 times x2.

*September 30, 2012*

**chemistry**

it is wrong

*September 29, 2012*

**chemistry**

How many hydrogen atoms are present in 1.02 mg of aspartame? I already got that there are 2.08e18 molecules of aspartame in 1.02mg of aspartame but i am not sure how to find how many atoms of hydrogen there are

*September 29, 2012*

**gas or liquid?**

is MgCl_2 a gas or a liquid?

*September 29, 2012*

**chemistry**

how do you name halogens as a functional group. like CH3-Cl

*September 26, 2012*

**chemistry. urgent!**

so would the benzene ring spot 1 have a double bonded O and a single bonded OH connected to it?

*September 26, 2012*

**chemistry. urgent!**

where woudl i put the propyl in 2-propyl benzoate? i thought the propyl had to be attactched to the O and wouldnt that just be 1-propyl not 2?

*September 26, 2012*

**completing the square**

1. f(x)= x^2-4 2. f(x)= x^2+6x+9 3. f(x) = 3x^2-8x+2

*September 25, 2012*

**Precalc**

#1: f(x) = x^2-4x find vrtex, axis ofsym, y-int, x-int if any, domain, range, where increasing and decreasing. I got.... vertex: 2,4 axis of sym: x=2 D= (-infinity, infnity) range= [4,infinity) im stuck of the intercepts because when i plug i 0 for x i get yint of 0 but the ...

*September 25, 2012*

**Check my precalc?**

#1: f(x) = x^2-4x find vrtex, axis ofsym, y-int, x-int if any, domain, range, where increasing and decreasing. I got.... vertex: 2,4 axis of sym: x=2 D= (-infinity, infnity) range= [4,infinity) im stuck of the intercepts because when i plug i 0 for x i get yint of 0 but the ...

*September 25, 2012*

**pre calc**

Water is poured into a container in the sape of a right circlar cone with raiud 4t an heigh 16 feet. Express the volue (V) of the water in the cone as a funtio of the heigh (h) of the water. thanks

*September 19, 2012*

**pre calc**

thanks so much! where di the 3/8 come from??

*September 18, 2012*

**pre calc**

I am sooo confused on my homework. #1 Two cars lave an intersection at the same time. One is headed south at a constant speed of 30mph. the other is heading west at a constant speed of 40mph. Build a model that expresses the distance (d) between thec ars as a funtion of time (...

*September 18, 2012*

**adv comp**

how can i put this sentence where I am not talking to the reader, just describing the surroundings. As one starts to stride to the right,they come upon a small stream and can’t get past the reeking smell of unknown origins. my whole paper is suppose to be like that. I am ...

*September 11, 2012*

**pre calc**

so those cannot be answered???

*September 9, 2012*

**pre calc**

f(x)=-3x+2 a) express the slope of the secant line of each function in terms of x and h. b) find msecant for h=.5, .1, and.01 at x=1. c) find the equation for the secant line at x=1 with h=1.01 I got -3 for a but don't know how to do the others becaus a does not have x or ...

*September 9, 2012*

**pre calc**

ohh wait ok that was me just having a dumb moment haha. THANKS sooo much:)

*August 30, 2012*

**pre calc**

for the second problem what is th height??

*August 30, 2012*

**pre calc**

I have a few problems from my homework that I am having trouble with. #1 Find the difference quotient of f foreach function f(x)=1/(x+3) I got -2x+6 #2 Express the area of an isosceles right triangle as a function of the length x of one of the two eual sides Thanks

*August 30, 2012*

**Biology**

In general, how do neuron inhibit cells?

*May 23, 2012*

**Bio**

In general, how do neuron inhibit cells? thanks

*May 23, 2012*

**Bio**

In general, how do neuron inhibit cells? thanks

*May 23, 2012*

**Natural disasters**

how many natural disasters were there is 2011? please profide url! thanks!

*May 9, 2012*

**us history**

where did james farmer live in 1969. was this his permanent residence? aka for his job did he live at the white house or at his home? thanks!!

*April 14, 2012*

**Physics**

so the voltage can never really increase more than what the source is?

*April 14, 2012*

**Physics**

so if u add more bulbs to a series they get dimmer, but the voltage increases so how is that possible?

*April 14, 2012*

**Physics**

Your lab partner says that a battery provides not a source of constant current, but a source of constant voltage. Do you agree or disagree and why? Also I am really confused with series and parallel circuits like when voltage, current, and resistance increase and decrease

*April 14, 2012*

**Bio Anatomy**

do you guys know of any sites that describes in detail pathology of the occipital lobe? thanks

*April 14, 2012*

**Speech**

I am going to be giving a demonstration speech that has to be between 3-10min, but i am not sure what to do it on. I was showing how to make an item/ product that you normally buy from the store but can easily make at home but am not sure. It either has to be practical or ...

*April 11, 2012*

**French**

What is the difference between the efficiency of appliances in the US vs. France and the amount of power used? thanks

*April 9, 2012*

**Household appliances**

Do you guys know of any websites that talk about the efficienty of household appliances and how it has changed over the years? Thanks

*April 9, 2012*

**french**

I am doing a presentation on the efficiency of appliances. I am going to be comparing the past and the present and then France and the US. Do you guys know of any good websites that would talk about any of this. All I can really find is different brands of appliances and then...

*April 5, 2012*

**French**

I am doing a presentation on the efficiency of appliances. I am going to be comparing the past and the present and then France and the US. Do you guys know of any good websites that would talk about any of this. All I can really find is different brands of appliances and then ...

*April 4, 2012*

**bio anatomy**

I am doing a paper on the occipital lobe. My sources have to be very reliable and good. Do you know oh any collages or universitys that have done research and have info on the occipital lobe on the internet? Or any other good sources? thanks

*March 30, 2012*

**Bio Anatomy**

What is the difference between bone matrix (compact) and intercellular matrix (in spongy bone)? Thanks

*March 7, 2012*

**bio Anatomy**

What is the difference between bone matrix (compact) and intercellular matrix (in spongy bone)? Thanks

*March 7, 2012*

**Simple how-to to do in french?**

For my french class i have to do alittle how-to for around 5 min. It has to be something I can explain to the class in french and then the rest of the class make or participate in. I am in french 4. I was thinking of making a unique type of paper airplane and then giving them ...

*February 27, 2012*

**in speech citations**

how would I site what someone said in a video on youtube in a speech?

*February 25, 2012*

**speech**

I am looking for an attention getter for my imformative speech about dog-human communication, In the speech, I am going to be talking about verbal and non verbal dog behaviors and then how dogs repond to human verbal and non verbal behaviors. I was thinking some statistic but ...

*February 24, 2012*

**bio II anatomy**

Do you guys know of any websites where they have a fetal pigs (or just a pigs) knee disected and labled???

*February 23, 2012*

**Bio II AP**

Do you guys know of any online study guides about joints that I could print out? Thanks

*February 23, 2012*

**speech**

and pitches

*February 18, 2012*

**speech**

yah they have different lengths and tones of barks

*February 18, 2012*

**speech**

So Im going to be doing an informative speech on dog-human communication. The visual aid I can use is a powerpoint. I really need help kind of outlining/ deciding what to talk about. I got a couple of books and have some research on it and there seems to be a whole lot of ...

*February 18, 2012*

**arithmetic**

convert to inches, 30mm wide and 40 mm long

*February 18, 2012*

**french**

Combine the elements with prepositions in french. Nous adions/ nos parents/ faire le menage. is it Nous adions a nos parents a faire le menage? or de faire? thanks

*February 16, 2012*

**Bio**

Also why is blood and bone considered a connective tissue?

*February 14, 2012*

**Bio**

Does hyaline cartilage have fibers in it?

*February 14, 2012*

**French**

thanks!

*February 9, 2012*