Friday

September 30, 2016
Total # Posts: 2,427

**math**

Wouldn't the square root of 4/3^2 be 4/3?? because your multiplying 4/3 by 4/3, and then dividing by 4/3/ which is 4/3.

*December 9, 2010*

**Math Correction**

Explain how you can tell(without graphing) that the function has no x intercept and no asymptotes. What is the end behaviour? r(x)= x^6+10 / x^4+8x^2+15 How would I solve this? I know it has something to do with factoring but im not sure what else to do. this is what i have so...

*December 8, 2010*

**math**

Look for a pattern in the table. Then write an equation that represents the table. x 0 1 2 3 y 1.5 4 6.5 9

*December 8, 2010*

**pre-algebra**

k im not sure how im supposed to do this 3(x+2)= 5-2(x-3) i need to know x

*December 8, 2010*

**Physics: Waves in Media**

By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?

*December 7, 2010*

**Physics Light and Color**

The depth perception cue employed in the old-fashioned stereoscopes but not in plain photographs is: (a) variation in color, (b) variation in sharpness, (c) binocular disparity, (d) previous knowledge. (Choose one.)

*December 6, 2010*

**Physics Light and Color **

Suppose that you close one eye, and see two objects, C and D. As you move your head toward the right, C appears to move toward the left compared to D. Which object is closer? Explain.

*December 6, 2010*

**chemistry**

If 60 grams of KCl can be dissolved in 100 grams water. Would the remaining solution be unsaturated, saturated, or supersaturated?

*December 6, 2010*

**Chemistry**

the third question it should be 2 not 8

*December 5, 2010*

**Chemistry**

Write equations for the following reactions: the combustion of propane the incomplete combustion of propane to for CO and water the complete combustion of 8,8-dimethylpropane in oxygen

*December 5, 2010*

**chemistry **

Predict the the product for the following reactions. zinc + hydrochloric acid sulfuric acid + sodium hydroxide sodium + hydrogen acetic acid + coppper

*December 5, 2010*

**physics**

A full can of black cherry soda has a mass of 0.406 kg. It contains 3.38 10-4 m3 of liquid. Assuming that the soda has the same density as water, find the volume of aluminum used to make the can.

*December 4, 2010*

**Math**

why is it possible to find the sum of the angle measures of an n-gon using the formula (180n-360) *degrees*

*December 2, 2010*

**math**

If the mean of a set of 36 scores is 27 and two more scores of 40 and 42 are added, what is the new mean?

*December 2, 2010*

**college**

explain how the organism in a diagram has evolved physiologically to become suited to its environeme

*December 1, 2010*

**Phy. Science**

explain how the organism in a diagram has evolved physiologically to become suited to its environeme

*December 1, 2010*

**geometry**

how can I draw five lines to form 6 congruent triangles using a rectangle

*December 1, 2010*

**english**

at the end of chapter IV, Frankenstein pauses to moralize. What does he say about passion and how a person should deal with it?

*December 1, 2010*

**Spanish**

El debate: Ya casi llegÃ³ el momento del debate. AquÃ tienes algunos comentarios que el candidato estÃ¡ practicando para decir mÃ¡s tarde. Elige entre el subjuntivo y el indicativo para completar las oraciones con lo que dice. ...

*November 30, 2010*

**Math **

Explain how you can tell (without graphing it) that the rational function r(x)= x^6 +10 / x^4+8x^2+15 has no x intercept and no horizontal, vertical, or slant asymptote. What is its end behaviour? Please help? thankq

*November 28, 2010*

**Chemistry**

0.257

*November 22, 2010*

**Math**

If there are 16 people at a party and one of the group decided to conduct a poll of who the president of the united states was, explain whether you would expect the answer to be accurate and why?

*November 22, 2010*

**geometry**

find the meausre of each exterior angle for a regular nonagon

*November 19, 2010*

**physics**

a square of edge length 15.0 cm is formed by four spheres of masses m1 = 8.00 g, m2 = 3.50 g, m3 = 1.50 g, and m4 = 8.00 g. In unit-vector notation, what is the net gravitational force from them on a central sphere with mass m5 = 2.20 g?

*November 17, 2010*

**Math**

You are using glass tiles to make a picture frame for a square photograph with sides 10 inches long. You want the frame to form a uniform border around the photograph. You have enough tiles to cover 300 square inches. What is the largest possible frame width x. a. 3.6 inches &...

*November 17, 2010*

**Chemistry**

How do you balance: iron(II0 oxide+ oxygen--> iron(III) oxide

*November 17, 2010*

**Chemistry**

how would you balance Al2(CO3)3--> A;2O3+CO2

*November 17, 2010*

**Chemistry**

Calculate the mass of air in an air-filled tire and the mass of helium in a helium-filled tire. What is the mass difference between the two? Assume that the volume of the tire is 857 , that it is filled with a total pressure of 125 psi, and that the temperature is 26 . Also, ...

*November 16, 2010*

**10th grade geo**

answers to objective 3-c algebra with pizzazz

*November 15, 2010*

**math**

A money market fund pays 14% annual interest compounded daily. What is the value of $10,000 invested in this fund after 15 years?

*November 13, 2010*

**Math, Please help :/**

oops. my bad. It should say -The number of textbooks and telephone books combined equals 3 times the number of library books.

*November 11, 2010*

**Math, Please help :/**

Kyle had 36 books in his locker. Some were library books, some were textbooks, and the rest were telephone books. The number of library books and telephone books combined equals 3 times the number of library books.How many of each type of book were in Kyle's locker? Please...

*November 11, 2010*

**Introduction to vet terminology**

These are the answers to your questions 1. C 2. A 3. B 4. C 5. A 6. c 7. D 8. D 9. D 10.D 11.D 12.C 13.B 14.D 15.A 16.A 17.D 18.B 19.A 20.A I just took the test and got a 100%

*November 11, 2010*

**7th grade math**

78=67

*November 11, 2010*

**College Algebra**

According to my homework, and I just missed it but it gives me the correct answer this is 14.1 billion people.

*November 10, 2010*

**Chemistry**

A piece of cadmium is placed in a solution in which [Cd^2+]=[Sn^2+]=1.00M. Will the following reaction proceed spontaneously? Cd(s)+Sn^2+(aq)-->Cd^2+(aq)+Sn(s)

*November 9, 2010*

**Chemistry**

A voltaic cell is based on the reduction of Ag^+(aq) to Ag(s) and the oxidation of Sn(s) to SN^2+(aq). Write half-reactions for the cell's anode and cathode, and write a balanced cell reaction.

*November 9, 2010*

**Chemistry**

Why does sulfric acid make the electrolysis reaction of H2 and O2 go more rapidly?

*November 9, 2010*

**french 3**

Ah! Light bulb! Merci beaucoup! And as for the 2 tenses in the past, I find conjugating fun, but not having to think about HOW to use them :)

*November 9, 2010*

**french 3**

I understand that l'imparfait occurred habitually in the past, and passé composé happened only once. However I'm not sure how to form this sentence: Some thought his work was grotesque, others thought it was interesting. Certains critiques ont pensé...

*November 9, 2010*

**French(easy question)**

This is how I would translate it: There's a good movie/film at the Gaumont. Shall we go? Not possible. I am studying for the test tomorrow. Okay. Well, see you tomorrow. *My french teacher calls our tests/quizzes "interros". Hope this helps!

*November 8, 2010*

**Chemistry**

What is the concentration of ammonia in a solution if 22.35mL of a 0.1145M solution of HCl are needed to titrate a 100.0mL sample of the solution?

*November 8, 2010*

**Chemistry**

a 25.0mL sample of a 0.100M solution of aqueous trimethylamine is titrated with a 0.125M solution of HCl. Calculate the pH of the solution after 10.0, 20.0, and 30.0 mL of acid have been added; pKb of (ch3)3N=4.19

*November 8, 2010*

**Chemistry**

A 25.0mL sample of a 0.100M solution of acetic acid is titrated with a 0.125M solution of NaOH. Calculate the pH of the titration mixture after 10.0, 20.0, and 30.0 mL of base have been added.

*November 8, 2010*

**Chemistry**

Calculate the pH of 1.00L of a buffer that is 0.120M HNO2 and 0.150M NaNO2 before and after the addition of 1.00mL of 12.0M HCl

*November 8, 2010*

**Math**

log0.001 =-3

*November 7, 2010*

**math**

Use the definition of less than and greater than to verify that a. -9 < -6. b. 2 > -8. c. 0 > -2.

*November 3, 2010*

**2nd grade math**

I wrote my question wrong - Tell how to make 10 when adding 8+5

*November 2, 2010*

**2nd grade math**

tell how to make 10 when adding 8+10

*November 2, 2010*

**help on geography!!**

Where is the LCL (lifting condensation level) on the leeward side of and why?

*November 2, 2010*

**Physics**

How many calories of heat are gained to turn 10 grams of ice at 0 C into water at 0 C?

*November 1, 2010*

**eCONOMICS **

Explain how an economist could use the slope of the yield curve to analyze the probability that a recession will occur and why the spread may matter.

*November 1, 2010*

**Math**

It as his lunch money

*October 26, 2010*

**Advice**

Why do your favorite teachers always leave?

*October 21, 2010*

**Mrs. Sue**

how should i start?

*October 20, 2010*

**Please answer this Msr.Sue**

please

*October 20, 2010*

**Mrs. Sue**

Why are some teachers so unfair?

*October 20, 2010*

**ENGLISH!!!!!**

way it is now

*October 20, 2010*

**ENGLISH!!!!!!**

after Lennie and before and

*October 20, 2010*

**bilogy**

Write a 700- to 1,050-word paper explaining how the organism in the diagram has evolved physiologically to become suited to its environment. Make sure to reference the diagram you located in your paper.

*October 20, 2010*

**math am I right?**

No its -35/100

*October 19, 2010*

**math**

yes

*October 19, 2010*

**Pre- algrbra**

never mind

*October 19, 2010*

**Pre- algrbra**

What property is c to the seventh power x 1= c to the seventh power?

*October 19, 2010*

**Math**

1 and 5/12

*October 19, 2010*

**kindergarten**

Do you mean that?

*October 19, 2010*

**5 th grade**

10 + 0

*October 19, 2010*

**AP U.S. History**

Between 1763 and 1789, the use and control of the frontier regions presented problems to both the British and the Americans. Describe the problems involved in the use and control of the frontier and explain how both the British and the Americans attempted to solve them

*October 18, 2010*

**Math**

As a rule of thumb, people should drink 1/2 ounce of water for each pound of body weight per day. How much water should a 145 pound person drink per day ? i know the answer is 72 1/2 ounces, but what technique should i use ????

*October 12, 2010*

**chemistry**

A solution contains an unknown amount of dissolved magnesium (Mg 2+). Addition of 5.50×10^−2 mol of Na2CO3 causes complete precipitation of all of the magnesium. what mass of the magnesium was dissolved in the solution? answer in unit g.

*October 11, 2010*

**Physics**

A bullet with a mass of 0.01kg is fired horizontally into a block of wood hanging on a string. The bullet sticks in the wood and causes it to swing upward to a height of 0.1m If the mass of the wood block is 2kg, what is the initial speed of the bullet?

*October 11, 2010*

**communication**

I agree with A.

*October 10, 2010*

**3rd grade**

841 the second number is the 4 so its 40

*October 10, 2010*

**Chemistry**

I need help calculating the partial pressure of H2 using the following information 0.028 g Mg with excess HCl which produced 31.0 mL of H2 gas. The gas was collected by water displacement in a 22 degrees Celsius water bath. The pressure was 746 mmHg.

*October 6, 2010*

**Physics**

A 20 g mass is attached to a 120 cm long string. The tension in the string is measured to be .200N. What is the angle. l\ l \ l \ l \ l o l Sorry crappy picture, but the circle is the mass and the diagonal lines represent the string the mass is attached to.

*October 6, 2010*

**Physics**

An object is being acted upon by three forces and moves with a constant velocity. One force is 60N along the x-axis, the second force is 75N along a direction making a counterclockwise angle of 150 degrees with the x-axis. What is the direction of the third force, measured ...

*October 6, 2010*

**Physics**

An athlete competing in long jump leaves the ground with a speed of 9.14 m/s at an angle of 35 degrees above the horizontal. What is the length of the athlete's jump?

*October 5, 2010*

**3rd grade math**

37

*October 5, 2010*

**Physics**

What does the "u" stand for? ex.... m = mass

*October 5, 2010*

**Physics**

A 120-kg crate, starting from rest, is pulled across a floor with a constant horizontal force of 400 N. For the first 17 m the floor is frictionless, and for the next 17 m the coefficient of friction is 0.34. What is the final speed of the crate?

*October 5, 2010*

**3rd grade**

She thought he said today

*October 4, 2010*

**chemistry**

if heat was added at a constant rate to the solid subsance, why did the temperature remain at 16 degree C for approximately 6 minutes?

*October 4, 2010*

**Business Communication**

#5 is a.

*September 30, 2010*

**chemistry**

A benzene solution of a nonvolatile solute exhibits a vapor pressure of 90.5 torr at 25 degree C. The vapor pressure of benzene at 25 degree C is 93.9 torr.. what is the mole fraction of the solute in this solution?

*September 26, 2010*

**Physics**

I got the same answer before, but it is wrong

*September 26, 2010*

**Physics**

You step onto a hot beach with your bare feet. A nerve impulse, generated in your foot, travels through your nervous system at an average speed of 113 m/s. How much time does it take for the impulse, which travels a distance of 1.50 m, to reach your brain?

*September 26, 2010*

**Physics**

Thanks, it really helped

*September 26, 2010*

**Physics**

A football player, starting from rest at the line of scrimmage, accelerates along a straight line for a time of 1.5 s. Then, during a negligible amount of time, he changes the magnitude of his acceleration to a value of 1.4 m/s2. With this acceleration, he continues in the ...

*September 26, 2010*

**data management**

For S = the set of whole numbers A = the set of numbers which are perfect squares B = the set of positive even numbers describe: a.) A' b.) AUB c.) (AUB)'

*September 25, 2010*

**Chem**

To obtain 12 g of sucrose (MM=342) from a solution labeled 8.0% C12H22O11 by mass, we would need to weigh out ______ of solution?

*September 25, 2010*

**French **

So i wrote a composition in french and my teacher marked that i conjugated a verb incorrectly. I can't figure out what it is supposed to be (i don't know if i'm using an incorrect idiom, etc). The original sentence is, "Quand vous allez a l'interieur, la ...

*September 24, 2010*

**Math**

Writing to Explain: How can you use models to show and name the number 1,400in two different ways? Expalin.

*September 21, 2010*

**Algebra**

Ok, so , I have the question: -5=-8+5f. I'ev figured out that I have to add 8 to both sides of the equation,but now I'm stuck because I'm left with -3+5f=? And I can't figure out what should be on the other side of the equals sign. Please help! I'm a figure...

*September 21, 2010*

**calculus**

The slopes of the tangent lines to the graph of the function f(x) increase as x increases. At what rate do the slopes of the tangent lines increase? f(x) = x2 – 6 PLZZ help

*September 21, 2010*

**math**

how do i solve for this question? Mr. Smith wants to save for his son's college education. If he deposits $300 each month at 10% compounded monthly, how much (to the nearest penny) will he have in the account after 14 years? Answer =

*September 17, 2010*

**math**

what do i have to do to solve this? Khety must save $5050 for a down payment on a car. He currently has $1925 in an account yielding 6.5% simple interest. If he saves no additional money, how long until he has enough for the down payment?

*September 17, 2010*

**AP Language and Composition**

I am writing a paper on the book The Great Gatsby by F. Scott Fitzgerald and my thesis is "In the Great Gatsby, F. Scott Fitzgerald shows us that material obsession often leads to the decay of ones soul." Does anyone know anywhere i can find sources relating to the ...

*September 16, 2010*

**geometry**

line yw bisects on angle xyz if angle xyw=10x-8 and angle wyz=3x+69 x equals to???

*September 11, 2010*

**math**

David has just received his income tax refund of $1438.11, and he needs $1742 to buy a new television. If his money can earn % simple interest , how long must he invest his tax refund? years what formula do i need to use?

*September 10, 2010*

**Math**

Find how much must be deposited now (present value) at % simple interest so that in 6 years an account will contain $8958 (future value). present value = $ WHAT FORMULA DO I NEED TO USE TO HELP ME SOLVE THE PROBLEM?

*September 10, 2010*