Wednesday

July 30, 2014

July 30, 2014

Total # Posts: 75

**Science**

2.38g of black copper oxide is completely reduced by hydrogen to give copper and water. What are the masses of copper and water

**physics**

The Vector A is 3cm long and points to the right. The vector B is 6cm long and makes an angle of 130 degrees with the horizontal (take 0 degrees to be to the right). The vector C= A+B. What is the lenght and direction of C?

**math**

name a figure that has an area of 47 centimeters square

**Chemistry**

Biphenyl, C12H10, is a nonvolatile, nonionizing solute that is soluble in benzene, C6H6. At 25 °C, the vapor pressure of pure benzene is 100.84 torr. What is the vapor pressure of a solution made from dissolving 19.6 g of biphenyl in 25.1 g of benzene?

**chemistry**

how many grams of carbon dioxide can be produced by burning 7.04moles of propane

**Algebra 2**

f(x)=10x-10

**Algebra 2**

(f o f^-1)(-10) Please help solve this composition of an inverse function.

**Calculus**

Thank you very much! I wasn't plugging in the absolute value signs! Thanks for the explanation too. =)

**Calculus**

Evaluate the indefinite integral of InT(-x^3+9x^2-3x+2)/(x^4-2x^3) I got ((1-2x)/(2x^2))+3*ln(2-x)-4*ln(x)+c but apparently that's not the answer... and I dont know why.

**Calculus**

Evaluate the indefinite integral of InT(-x^3+9x^2-3x+2)/(x^4-2x^3) I got ((1-2x)/(2x^2))+3*ln(2-x)-4*ln(x)+c but apparently that's not the answer... and I dont know why.

**Calculus**

Evaluate the indefinite integral of InT(-x^3+9x^2-3x+2)/(x^4-2x^3) I got ((1-2x)/(2x^2))+3*ln(2-x)-4*ln(x) but apparently that's not the answer...

**chemistry**

During lab, you are provided with a stock antibody solution (Ab) that has a concentration of 400 μg/μl. For lab, it is necessary make the following dilutions (Fill in the blanks): 5μL of Stock Ab + 195μL of buffer to make a 1:____ dilution at _______μg...

**Chemstry**

Mercury concentration in a polluted lake is 0.0125 micrograms/L. What is the total mass in kilograms of mercury in the lake if the lake is approximately circular witha diameter of 10 miles and an average depth of 50 ft.?

**Maths**

A swing 5 metres long swings through a vertical angle of 50 degrees. Through what vertical distance does the seat rise in going from its lowest position to its highest?

**Literature julius Caesar**

Thank you!!!!

**Literature julius Caesar**

What are 3 purposes for shakespeare showing us scene 3. Consider antonys speech, what is likely to occur in the rest of the play, and the role of language in politics. any good ideas? thanks <3 Gabby!

**math**

im pretty sure!

**math**

-.001 < -.03

**French**

If you're writing a sentence in French with two verbs, the first being l'imparfait, would the second one be in the infinitive? For example "Le peuple prehistoriques était intelligente parce que ils pouvaient ériger les monuments sans des machines&quo...

**Science**

273 degrees farenheit is what in celsius 273`F--> ??`C

**francais freshmen**

Translate into french please: Return to heat and cook until set and edge is dry,(takes approximately 30 seconds).

**french **

merci beacoup,merci beacoup!!!!!!!!!!!!!!!!!!!!!!

**french **

for french project: a) does 1/6 cup=2 tablespoons+2 teaspoons b) say that in french s'il vous plait!:)

**English**

Directions: Place all prepositional phrases in parentheses. Underline the subject or subjects once and DOUBLE underline or bold face the verb or verbs 1. Sandy’s revealing suit attracted stares from everyone at the swimming pool. 2. Join us at Subway for lunch at 1:00. 3....

**french**

Please help me by translating the following french terms into english: 1) le litchi 2)le bonbon 3)le ragout 4)l'epice 5)les accras 6)les matoutous 7)le blaff 8) le feroce 9)le lambi

**English**

6) scan-- When I'm at the check-out counter, I put my items* on the conveyor belt for the clerk to scan. * maybe a better word.

**math**

A customer uses a $20 bill at a self check-out register to pay for products totaling $14.50. The customer is concerned they did not receive the proper change. How much money should they have received back from the autom

**ice cube mass???**

an ice cube at 0 was dropped into 30.0 g of water in a cup at 45.0 C at the instant that all of the ice was melted, the tempature of the water in the cup was 19.5 C. what was the mass of the icecube?

**9th grade chem**

Using the following equation Ca(s) + 2C(s) --> CaC2(s) ^ H = -62.8 kJ CO2(g) --> C(s) + O2(g) ^ H = 393.5 kJ CaCO3(s) + CO2 (g) --> CaC2(s) + 2 1/2O2(g) ^ H = 1538 kJ Determine the heat of the reaction (in kJ) for: Ca(s) + C(s) + 3/2O2(g) --> CaCO3(s)

**Simplify alegebra 2 **

-5ã2(4ã2 - 3ã3)

**9th grade chem**

estimate the freezing point of an aqueous of 10.0 g of glucose dissolved in 500.0 g of water

**9th grade chem **

What is the freezing point depression of an aquous solution of 10.0 g of glucose in 50.0 g H2O?

**English**

in the book to kill a mockingbird what chapters (15-25) can i find quotes that support what boo radley, mayella ewell, and tom robinson had in common?

**11th grade Chemistry**

the compound adrenaline contains 56.79% c,6.56% h,28.27% and 8.28% n by the mass what is the empiricol formula

**science**

how do you find the electronegativity of Ethanol (C2H5OH)?

**math**

need help making a Data Bar Graph using Maximum:18 Mode:7 Range:13 Median:12

**Re: social studys**

Im the girl qho just asked about my 2-3 page essay. Its based on this "explain and describe how geographers use thier tools to interpret geographic questions. Remember, i'm in 7th grade. (ms.sue) my teacher said that its based on out notes and its bacically about tech...

**Social studys**

(ms.sue) my teacher said that its based on out notes and its bacically about technology tools for geographers -globe -map -cartogropher -surveyor -remoute sensing -landsat -GPS -GIS also about careers in geography like what different kinds of geographers thier is. Thanks again!!

**Social studys**

Hi i need help on a 2-3 page essay. The question its based on is" explain and describe how geographers use thier tools to interpret grographic questions" I'm in 7th grade THANKS!! :)

**Continents**

I need to know if these are all the continents and the correct spelling for a quiz tommrow. --Africa Aisa Auntartica Austraila North America South America Eroupe-- THANKS!!! :D

**mental health**

This answer would vary depending on your actual values and beliefs. So I don't think we could help you.

**Math**

Words or letters? Because I'm pretty sure that if you fold HI over on itself it won't be symmetrical vertically. And could you tell me what you mean when you say "printed vertically" and "printed horizontally"?

**10th grade**

Multiply the each fraction by the denominator of the other so that they will equal each other.

**Science-Pendulum**

It seems to me that you've answered your own question, but you could add that to test one certain part to see if it affected the swing rate you had to keep all other parts constant. You can't just change everything at once and expect to be able to see what affects it a...

**math**

When you move your y value to the opposite side, it will become negative. Then you'll need to divide each side by negative 1. Other than that, you are correct.

**4th grade**

suppose you wanted to place 1,000,000 pennies in large coin banks.if you put 50,000 pennies in each bank,in which bank would you find the 678,230th penny

**art**

I have homework in art where, every week, I must look up an art definition, describe it, and draw a picture with it. I was wondering what the following words mean and/or where I could find pictures: Sfumato, Composite, Anthropomorphism, Tactile, Garish, Fickle, Gaudy, Zealot, ...

**Physics**

Oh, wow. Talk about a dumb mistake. Thank you bobpursley!!

**Physics**

On Williamston Rd., Mason is driving 24.2 m/s. After spotting a large deer in the road ahead, Mason brakes the car to a complete stop. If Mason's car takes 35.9 meters to stop, what is the acceleration of the car? -- Here's what I'm getting, but my program that the...

**HELP MATH**

If you tell me what you've figured out on your own, I'll be happy to walk you through the rest of it!

**Microeconomics**

i need help with number 57

**8th Grade Algebra**

I don't know how to do these types of problems whatsoever. 1) It takes a small jet plane 4 hours less time than it takes a propeller-driven plane to travel from Glen Rock to Oakville. The jet plane averages 637 km/h while the propeller plane averages 273 km/h. How far is i...

**4th Grade Social Studies**

can you help me please

**science**

thanks!

**science**

what could be a possible source of sulfates found in a supply of drinking water?

**math**

What is the pecent of change fo this problem... from 8 to 300

**math**

So when 48.5 is rounded it equals 48.6?

**accounting 2 urgent please help**

part 2 thank you Prepare a statement of cash flows, using the indirect method of presenting cash flows from operating activities a.Equipment and land were acquired for cash b.There were no disposal of equipment during the year c.The investments were sold for 45,000 cash d.The ...

**accounting 2 urgent please help**

part 1 June 30, 2008/2007 Assets Cash- 34,700/23,500 accounts receivable- 101,600/92,300 inventory- 146,300/142,100 Investment-0/50,000 Land-145,000/0 equipment- 215,000/175,500 accumulated depreciation- (53,400)/ (41,300) 2008= 594,000 /2007=442,100 Liabilities and stockholde...

**accounting 2**

a.Equipment and land were acquired for cash b.There were no disposal of equipment during the year c.The investments were sold for 45,000 cash d.The common stock was issued for cash e.There was a 65,900 credit to retained earning for net income f.There was a 50,000 debit to ret...

**accounting 2**

June 30, 2008/2007 Assets Cash- 34,700/23,500 accounts receivable- 101,600/92,300 inventory- 146,300/142,100 Investment-0/50,000 Land-145,000/0 equipment- 215,000/175,500 accumulated depreciation- (53,400)/(41,300) 2008= 594,000 /2007=442,100 liabilities and stockholders equit...

**microeconomic**

a. Calculate the total cost, the average variable cost, the aver-age total cost, and the marginal cost for each quantity of output. b. What is the break-even price? What is the shut-down price? c. Suppose that the price at which Kate can sell catered meals is $21 per meal. In ...

**mircoeconomic**

Kate’s Katering provides catered meals, and the catered meals industry is perfectly competitive. Kate’s machinery costs $100 per day and is the only fixed input. Her variable cost is com-prised of the wages paid to the cooks and the food ingredients. The variable cos...

**medical coding and billing**

I`m doing this same eact researcgh project for Penn Foster and i`m haveing a really ough time with it. So if you could help meit would be really grateful! Thanks

**math riddle ALGEBRA WITH PIZZAZZ**

why did king kong eat a truck ?

**Science**

What volume of helium would be in a balloon the size of a soft drink bottle?

**MATH**

HELP!!!!!! i have a huge test on circles radius , circumference , diameter. Also Equivalent Fractions and Comparing and ordering fractions.

**science**

info on describing, Measuring, and graphing motion

**biology**

Explain how respiration and the circulatory system work together when an individual is exercising. Does tissue need oxygen at a higher rate? Does tissue need to void CO2 at a higher rate? Does the heart pulse speed up? Does the breathing rate increase?

**Government**

what are economic powers that are in the Legislative Branch?

**Government**

what are goals for American Government as Stated in the Preamble?

**math,correction**

Gkkkk

**health**

The nine essentialamino acids are A)NOT FOUND IN FOODS B)NOT MADE BY THE BODY C)ALL PRESENT IN INCOMPLETE PROTEIN D)MADE BY THE BODY not made by the body, so they must come from foods.

**College Algebra 1**

help! 2x/1+x-1/1-x=2 Get a common denominator. As I see your problem (you did not use parenthesis), the common denominator will be (1+x)(1-x) Thank you!

**math**

A computer store sold a total of 300 items last month. The store sold six times as many hard drives as they did CD-ROM drives, and half as many floppy drives as hard drives. Based on this information, how many of each items were sold?

Pages: **1**