Saturday

December 10, 2016
Total # Posts: 674

**chemistry**

Balance the equation: Note: If a chemical species coefficient is "1" then "1" needs to be entered in the field before that species. MnO4– + H+ + Fe2+ Mn2+ + H2O + Fe3+

*June 29, 2009*

**Simplifying Rational Expressions**

1) d + 7/d^2 - 49 2)b^2 - 10b + 21/b^2 - 11b + 28 Please help me.

*June 3, 2009*

**Math**

5 bags?

*June 1, 2009*

**Math**

Bob wants to start a lawn in an area that is 110ft by 70ft. One bag of seed covers 1200 square feet. How many bags should he buy? Please help me solve

*June 1, 2009*

**Maths**

4ab-8ac+12ad

*May 26, 2009*

**Grammar**

Thank you. I have all the websites you listed in my favorites file so I can check them after school today. Thanks so much.

*May 5, 2009*

**Grammar**

I think blue does have a long vowel sound. Like the words use and uniform. I will check out the websites after school today. Are you sure Blue is vowel digraph?

*May 5, 2009*

**Grammar**

Can you please check these? Thanks. Vowel Pairs: freezing rain sleet beat gray streets blue play Kay raisin feel easy Vowel Digraphs: looked said caught headline said school because heavy weather good sleigh said could neighbor bread instead

*May 5, 2009*

**3rd grade phonics**

Thanks for the link. Are the ones I picked correct? Thanks.

*May 4, 2009*

**3rd grade phonics**

Can you please check these? Thanks. Vowel Pairs: freezing rain sleet beat gray streets blue play Kay raisin feel easy Vowel Digraphs: looked said caught headline said school because heavy weather good sleigh said could neighbor bread instead

*May 4, 2009*

**3rd grade grammar**

Identify the helping verb, linking verb and subject pronouns in each sentence. 16. The mother cat has curled into a ball. HV-has LV- SPN- 17. Kate's kitten has disappeared. HV-has LV- SPN- 18. It is not with the other kittens. HV-is LV- SPN-It 19. I have looked under Dad&#...

*May 4, 2009*

**3rd grade Math**

Thanks, no problem.

*April 28, 2009*

**3rd grade Math**

I think I'm right but not sure if the second part of your answer is right? But I think mine is.

*April 28, 2009*

**3rd grade Math**

Question: Sandy, has fewer than 16 crayons. If she puts them in equal rows of 5, none are left over. If she puts them in equal rows of 6, four are left over. How many crayons are there? two rows of fives=10 one row of sixes=6 10-6=4 crayons left over. I think the answer is 10 ...

*April 28, 2009*

**3rd Grade Grammar**

Thank you.

*April 27, 2009*

**3rd Grade Grammar**

Can you please tell me if these are correct. Directions..replace capitol words with a pronoun. 1.THE RAIN poured down. IT 2.RAINDROPS beat against the window. THEY 3. Greta asked DAD about the storm. HIM 4. Dad told GRETA AND ME about thunder. US 5. Then GRETA AND I saw a ...

*April 27, 2009*

**Math**

6s^2+11s-21/s divided by s^2+11s+24/st Help walk me through this, please? I keep getting it wrong.

*April 27, 2009*

**3rd Grade Grammar**

Thank you so much :-}

*April 27, 2009*

**3rd Grade Grammar**

I need help. I think the book is trying to trick me. Directions: Select the Subject Pronouns and Object Pronouns in each sentence. 3. They filled the sky. S-they O-none? 5. Greta saw it first. S-none? O-it 6. Dad asked us to come inside. S-none? O-us 7. I wanted to stay ...

*April 27, 2009*

**Accounts (URGENT)**

If in the asserts-liability statement the value of the closing stock is $1580 and then there is an additional note which says: Stock valued at $4240 had been discarded during the year as it had deteriorated and could not be sold How will I account for it? Can someone help me ...

*April 27, 2009*

**biology please help**

Explain how the small intestine is specialized for digestion and absorption. the small intestine is specialized for absorption by the huge number of villi that line the intestinal wall. BUT HOW is it specialized for digestion

*April 26, 2009*

**Physics**

drwls, i think your way of solving the problem is incorrect. my online homework rejected your answers. From your equations I concluded: Vx=33.5 m/s, Vy=0 V=(Vx^2+Vy^2)^(1/2) = 33.5 m/s X=v*(2h/g)^(1/2) = (2*1.4/9.81)^(1/2) = 17.9 m Unfortunately, these answers are wrong.

*April 12, 2009*

**Physics**

When William Tell shot the apple off his son's head, the arrow remained stuck in the apple, which means the collision between the arrow and apple was totally inelastic. Suppose that the velocity of the arrow was horizontal at 75 m/s before it hit, the mass of the arrow was...

*April 12, 2009*

**math**

4 numbers are drawn at random from 10 tiles numbered 0-9. what are the odds of drawing numbers 1-4 in any order. the question is confusing me

*April 9, 2009*

**algebra**

x^6-64 How do I factor this problem? The answer I'm supposed to get, I can't figure out how to get there.

*April 7, 2009*

**math help**

can someone explain to me how i should factor this problem? x^6-64 How do I know if i'm supposed to use the difference of two squares, or the difference of cubes?

*April 6, 2009*

**chem**

and DrBob222 is why you should never trust the internet

*March 20, 2009*

**3rd grade Grammar**

5. Hikers?

*March 3, 2009*

**3rd grade Grammar**

I can't figure out if the teacher is trying to trick me. I'm supposed to find the plural subject in the following sentences. I can't find a plural subject. Can you help me. 1. Yellowstone National Park is in Wyoming. (can't figure this out) 2. This park also ...

*March 3, 2009*

**Calculus**

Can you please explain how to work it because I still cannot understand.

*February 22, 2009*

**Calculus**

Find the intergral of 1/[cos(^2) x

*February 22, 2009*

**History**

Thank you. On the website it says: "The term is often used to refer to various economic philosophies and political philosophies which seek to minimize or eliminate government intervention in most or all aspects of society." does this mean that the original statement ...

*February 20, 2009*

**History**

"Although the economic growth of the United States between 1860 and 1900 has been attributed to a governmental policy of laissez-faire, it was in fact encouraged and sustained by direct government intervention." Assess the validity of this statement. Is there any ...

*February 20, 2009*

**chem**

car companies making airbags

*February 10, 2009*

**Biology**

Orange color in non-pedigreed cats is controlled by the O locus. The non-orange phenotype, if not diluted, appears as black coat color. Perform the following reciprocal crosses: Orange blotched female X black blotched male Black blotched female X orange blotched male What ...

*February 10, 2009*

**Maths - Vectors**

The position vectors a,b,c of the points A,B,C relative to the origin O are ai, bj and ck respectively.Find: 1) a vector equation for the line l throught O which is normal to the plane ABC. 2) a vector equation of the plane ABC The answers should be: 1) r=t(bc i +ac j +ab k) ...

*February 2, 2009*

**input output table**

input output 5 7 15 44 0 1 2 3

*January 15, 2009*

**Accounts**

A company produces just one standard product. The company's budgeted overheads for the next financial year are £80000. Other relevant information includes: Budgeted Production: 16000 units Cost of Raw Material per unit: £4 Cost of Direct Labour per unit: £...

*January 8, 2009*

**Biology**

A bricklayer has an assistant who brings bricks to the bricklayer so she can build a wall. What part of translation most closely resembles the assistant's job? What do the bricks represent?

*December 8, 2008*

**Genetics/Biology**

What kind of inheritance is it when the offspring have spots of different colors from its parents? Like a brown dog with a white dog makes a white/brown spotted dog.

*December 7, 2008*

**Physics**

I am finding the value of the time constant in a circuit from the graph and by the CR equation. When using the graph I am getting t= 50s and when using the equation t=CR the answer is 2.09. Can someone help me please?

*November 26, 2008*

**3rd grade 1st year spanish**

I am so confused. This is my first year of spanish and I only have it 1 day a week. Our books are really small without any translated information. I need 2 words that start with the following letters in spanish with the english translation. Thanks for your help. 2 words Y- K- ...

*November 16, 2008*

**3rd grade**

Thank you. I was thinking that each game scored 12 goals. Not 12 goals total. Now that makes sense.

*November 13, 2008*

**3rd grade**

Thea's soccer team scored 12 goals in the first three games. The team scored the same number of goals in wach of the first two games. The team scored 3 fewer goals in the third game than in the second. How many goals were scored in each game?

*November 13, 2008*

**math**

it would be -1/70-7 which is -1/63 do the reciprocal it's 63/-1 or it's the same thing as -63

*November 6, 2008*

**French**

What verb do we use for the verbe auxiliaire (helping verb)?

*November 6, 2008*

**Math**

x^2=3 x= the square root of 3 x = 1.73205

*October 30, 2008*

**AP American History**

between 1785 and 1815, the indians of the northwest and canada allied themselves with the british because A) The british historically limited western expansion into indian lands B) the Americans had cut off all communication and trade with those tribes C) There had been ...

*October 29, 2008*

**Maths**

Expand ln(1+x) and ln(1-x) and hence deduce that ln((y+1)/(y-1))=[2/y]+[2/(3(y^3))]+[2/(5(y^5))]+[2/(7(y^7))]. State the range of values of y for which the expansion is valid. Hence calculate ln(101) correct to 4 significant figures given that ln(99)=4.59507. I managed to ...

*October 22, 2008*

**Applied Maths**

Given that position vector a=4i+2j, position vector b=13i+5j are the vectors of A and B respectively. Given also that C lies on the line AB such that (Ab/AC)=3. Find vector AB, vector AC and the position vector of C. Given that vector BD=2i+4j, show that D lies on the line AB ...

*October 20, 2008*

**Science Experiments**

ok, thank you

*October 15, 2008*

**Science Experiments**

Is the control of an experiment the part that is not changed?

*October 15, 2008*

**Math**

140/297 write fraction in simpest form

*October 12, 2008*

**Physics**

A solid iron cylinder of mass 0.2 kg is quickly transferred from inside boiling water in a beaker at 100 C into 90g of water at 15 C contained in a calorimeter of mass 150g and specific heat capacity equal to 800 J/kg/K. Find the final temperature of the water. (The Specific ...

*October 9, 2008*

**Maths**

Thanks a lot for your help!!

*October 8, 2008*

**Maths**

Thanks for your help! Could you please help me with the second problem because my answers are still not matching?

*October 8, 2008*

**Maths**

These questions are about permutations and combination: Find the number of ways in which a class of 20 children can be divided into two groups of 6 and 14 if the class has a set of twins who are inseperable. (ans. is 21624) Four books are taken from a shelf of 18 of which 6 ...

*October 8, 2008*

**spanish**

i need help unscrambling this sentence! clases / esta / tienes / que / tarde please help me! <3 claire

*October 7, 2008*

**math**

B is right. Since a binomial is the sum of two monomials.

*October 7, 2008*

**GBE (Genetics)**

What are the advatages of Eukaryotic genes splitting up? I'm not so sure how to approach the question, is it something to do with exons & introns or the nucleotide sequences?

*October 7, 2008*

**Algebra 2**

I know but it's not a "real" function or anything we have to graph, f(x) can be anything..so say it's f(x)=x^2 then it would be y=(-x^2-4)+6 so is it left 4 or right 4?

*October 6, 2008*

**Algebra 2**

I'm confused with this function y= f(-x-4)+6 I have to state what the function is doing, so i know it's a reflection over the y-axis, and you go up six, but with the 4 do i go right or left?? Thanks for any help!

*October 6, 2008*

**french**

At french cafes the seats outside are more expensive than the inside, Pont neuf (even though its translated as "new bridge") is actually the oldest bridge in paris. Napoleon's tomb is in a red coffin at l'hotel des invalids and that's all I can think of ...

*September 22, 2008*

**Math/Chemistry**

The density of water i 1.00 g/cm^3. Express this density in lb/ft^3. (1 lb = 454 grams)

*September 22, 2008*

**5th grade math**

625/1000 you do it by seeing how many digits are after the decimal point and you add that many zeros to one.

*September 22, 2008*

**math**

mystery number is 82.406 =)

*September 22, 2008*

**7th grade**

Why do scientists use the measure of light years?

*September 18, 2008*

**spanish**

Lilian no ______________llegar a la fiest. we must use the preterite tense of verb ( poder) can anyone help me thanks

*September 16, 2008*

**history**

what was the only city named in Palestine? One map shows Jerusalem and Jericho- -- one may shows Gaza - But the question only requires there to be one city Jerusalum, Jericho or Gaza

*September 9, 2008*

**history**

what was the only city named in Palestine? One map shows Jerusalem and Jericho- -- one may shows Gaza - But the question only requires there to be one city Jerusalum, Jericho or Gaza

*September 9, 2008*

**spanish**

etapa de la vida - how would this translate thanks

*September 8, 2008*

**Math**

What do the numbers ten eighty and 90 have in common that's unique?

*August 28, 2008*

**physics**

thank you so much. I suppose I did understand it, just looking at it from the wrong perspective.

*July 22, 2008*

**physics**

im apologize, i forgot to put the answer choices. They are: a. an unbalanced torque b. an unbalanced force c. its rotational inertia d. angular momentum This question really confuses me. Isn't it because the center of gravity for the ball is not over it's base support ...

*July 22, 2008*

**physics**

A ball rolls down a hill mainly because of: a. an unbalanced torque b. an unbalanced force c. its rotational inertia d. angular momentum I think it is d - but I am unsure. Any advice?

*July 22, 2008*

**physics**

You know that you can safely stand on the hang-over end of a heavy plank that rests on a table. How far depends on your mass and the mass of the plank. Suppose you can stand on the end of a plank that overhangs the edge of the supporting table 1/4 its total length. Then how ...

*July 22, 2008*

**physics**

It takes Pluto a longer time to travel around the sun than the Earth because Pluto: a. has farther to go b. goes slower c. a and b d. none of these

*July 22, 2008*

**physics**

The headlights, radio, and defroster fan in an automobile are connected in a. series with a switch for each. b. parallel with a switch for each. c. series without separate switches. d. parallel without separate switches. any help would be appreciated - thank you!

*July 21, 2008*

**physics**

An electron and a proton that are placed in an electrical field both accelerate equally. True or False?

*July 21, 2008*

**physics**

When 3 resistors of 1 ohm resistance each are connected in series to a 12 volt power supply, the total resistance of the circuit is _______ ohms. I really appreciate any help with this stuff - it's difficult for me! Thanks

*July 20, 2008*

**physics**

4 times bigger - so I think the answer would be 4 Newtons.

*July 20, 2008*

**physics**

Two charges separated by one meter exert 1 Newton forces on each other. If the magnitude of each charge is doubled, the force on each charge is ______ Newtons. Thanks!

*July 20, 2008*

**Philosophy**

Does anyone know any websites that have in depth answers to philosophy questions? I have to answer these: Why is the notion of control so important to Epitectus? In what senses would you call Epicurus a materialist? atomist? naturalist? Explain how Augustine attempts to ...

*July 20, 2008*

**physics**

The amount of energy dissipated by a 100-W bulb in a common parallel circuit ____________________. a. All of these. b. None of these. c. is normally 100 joules per second. depends on the voltage supplied to the lamp. d. depends on how long the bulb is lit.

*July 20, 2008*

**physics**

Charge polarization is normally produced by: nuclear interactions. contact. induction. friction. electrostatic means.

*July 19, 2008*

**MLA Help**

Are two spaces after a period required anymore?

*July 13, 2008*

**MLA Help**

I'm also scared that I've done my margins wrong. I've taken a look at my Holt Handbook about MLA formats but I'm still confused.

*July 13, 2008*

**MLA Help**

Can someone (preferably an english teacher) check my margins? This is the first time I've had to put an essay in true MLA format. He said that he wants the lines double spaced and a margin of 1 inch. However, I don't know whether I'm supposed to put a space between...

*July 13, 2008*

**English**

I'm supposed to write a first person narrative from the view of someone that shares a different one than me. p. 59 in New Millennium Reader if anyone has it. How long should it be? How should I start it off? I'm having trouble picking a topic and a view. Examples? Thanks.

*July 7, 2008*

**linear inequalities.**

The red arrow shows that all the values on the number line less than –3 are in the solution. The open circle at –3 shows us that –3 is not in the solution. Like this? Why is -3 not in the solution? How can I tell?

*June 4, 2008*

**linear inequalities.**

i'm having a lot of trouble figuring out when to use a closed or an open interval. do i use infinity in every question where both numbers are not defined? insight? thanks/

*June 4, 2008*

**NEED INFORMATION**

try searching it on google

*May 11, 2008*

**PHYSICAL SCIENCE**

DOES MOTION PRODUCE HEAT WE NEED TO ANSWER TRUE OR FALSE ON OUR HOMEWORK IF YOU RUN THAT IS MOTION WHICH MAKES YOU SWEAT THIS IS HEAT???

*April 22, 2008*

**Maths**

The answer is at the back of the book but I cannot understand how to get to that answer!

*April 4, 2008*

**Maths**

The tangent to the curve 2y= 2x^2 -5x +4 at the point where x=1 is parallel to the normal to the curve y= ax^2 + bx +10 at the point (-2,2). Calculate the values of a and b. The answers are a=1, b=6

*April 4, 2008*

**algebra**

so the 4/4 comes from the original m? the way you did it is completely opposite from how i learned. i thought that i would subtract 1/4m and cancel that out, then subract 1/4 from m.

*April 3, 2008*

**algebra**

m-($50)9=1/4m the answer (m) is $600. what is the process for getting the answer?

*April 3, 2008*

**math**

How would I write the following quadratic function in standard form? The function is -(9x+2)^2+4x? What is the process for changing this to standard form?

*March 26, 2008*

**biology**

Is a starch molecule smaller or larger than an iodine molecule?

*March 26, 2008*

**French**

Could SraJMcGin please check this for me your really good. Thanks

*March 25, 2008*