Thursday

December 8, 2016
Total # Posts: 1,809

**Math**

Can you please explain what the quad formula is?

*September 27, 2010*

**Math**

-9+x = x/8 -23

*September 27, 2010*

**Science**

Make the necessary conversions between ordinary decimal form and standard exponential notation. a) 56934 = ?

*September 26, 2010*

**Literature**

In emphasizing the importance of individual thinking and basing one's beliefs on one's own experiences, Sujourner shows she has much in common with

*September 22, 2010*

**Statistics**

how do it on paper and pencil?

*September 20, 2010*

**Statistics**

The amt of time cold sufferes will experience symptoms is normally distributed wiht a mean of 7.5 days and a standard deviation of 1.2 days what proportion of sufferers will experience in LESS THAN 4 days , also what proportion will experience sympotms for 7-10 days How do you...

*September 20, 2010*

**social studies**

How many people lived on the north american continent before european settlement?

*September 19, 2010*

**science**

How many people lived on the north american continent before european settlement?

*September 19, 2010*

**Internal Assessment Topic**

I have to come up with an Internal Assessment topic for history, and I want something that focuses on Trotsky, but I'm having trouble thinking of a good topic. I would've liked to compare the roles of Trotsky and Lennin in the October Revolution, but my friend has ...

*September 14, 2010*

**20th Century World History**

I have to come up with an Internal Assessment topic for history, and I want something that focuses on Trotsky, but I'm having trouble thinking of a good topic. I would've liked to compare the roles of Trotsky and Lennin in the October Revolution, but my friend has ...

*September 14, 2010*

**chemistry**

how many moles of solute is present in 40.0mL of 1.000 M of HNO3

*September 14, 2010*

**Pre Calc**

the 1 is over k(k+1), and the A is over k, and the B is over k+1

*September 12, 2010*

**Pre Calc**

Solve for A and B if: 1 A B ----- = --- + --- k(k+1) k k+1

*September 12, 2010*

**Pre Calc**

Determine K: a:12! -- =k 10! b:65!+64!+63!=k^2*963! c:(k+5)!=(k^2+196)(k+3)!

*September 12, 2010*

**Pre Calc**

Determine K: a:12! b:65!+64!+63!=k^2*963! -- =k 10! c:(k+5)!=(k^2+196)(k+3)!

*September 12, 2010*

**english**

dissect sentence To sail around the world has always been my life-long dream

*September 12, 2010*

**9th grade english**

need help dissecting five sentences for parts of speech and sentence 1) Following too closely behind a car can be dangerous

*September 12, 2010*

**spanish**

Muchas gracias! :)

*September 12, 2010*

**spanish**

When one is referencing mood, I know estar is generally used because states of mood are temporary. In the following sentence, though, it seems like ser might be more appropriate, at least for the first part, because "siempre" indicates the mood is permanent. In the ...

*September 12, 2010*

**math**

find p from the formula I=prt/100 when i=20, r=5 and t=4

*September 5, 2010*

**Chemistry**

1.25 x10^-5g/ 0.75 moles = Not sure what the ^ stands for

*August 31, 2010*

**geometry**

IF a quadrilateral EPIC is a rectangle what are the slopes of the other 3 segments?

*August 30, 2010*

**science**

The combustion of acetylene in the presence of excess oxygen yields carbon dioxide and water: 2C2H2 (g) + 5O2 (g) ¨ 4CO2 (g) + 2H2O (l) The value of ƒ¢So for this reaction is __________ J/K.

*August 1, 2010*

**AP Physics**

i'm in ap physics too and we do WAY more complicated stuff than that.

*August 1, 2010*

**Calculus**

How do you factor (x^2+1)^(1/2)*(x^2-1)+((x^2+1)^(3))^(1/2)*(2x^2-2)?

*July 3, 2010*

**math 6th grade**

what i ended up getting is 2.25 feet and 0.75 yards

*June 29, 2010*

**math 6th grade**

i think the answer is 5 feet

*June 29, 2010*

**math 6th grade**

20

*June 29, 2010*

**math 6th grade**

You have 15 yards of ribbon for your gift boxes. each box gets the same amount of ribbon. How much ribbon will each box get

*June 29, 2010*

**English 1 **

Please Help. I have read it over but have no clue

*June 23, 2010*

**English 1 **

Which of the following statements, all spoken by Frank, BEST describes Frank's character? This is from the play, "Thunder on Sycamore street." Choose what you believe is the strongest response to this question. Write the letter of the answer you choose and ...

*June 23, 2010*

**algebra 1**

but its a multiple choice and it doesnt have that as one of the choices...

*June 17, 2010*

**algebra 1**

the question is: What is the sum of 5 radical 7 and 3 radical 8? i don't understand how to solve this because i cant pull out a perfect square

*June 17, 2010*

**statistiss**

you need the table in order to do the question.

*June 17, 2010*

**Chemistry**

the answer is 6.20 L

*June 5, 2010*

**Chemistry**

its 6.20 L

*June 5, 2010*

**algebra**

yOUR BROTHER TRAVELED 117 MILES IN 2.25 HOURS TO COME HOME FOR SCHOOL BREAK. wHAT'S THE AVERAGE SPEED THAT HE WAS TRAVELING?

*June 3, 2010*

**math**

52 i think

*June 3, 2010*

**math**

I got 0.01923077

*June 3, 2010*

**math**

thank you i will

*June 3, 2010*

**math**

2.25 divided by 117 is 2 by 10 is 5 and I am cinfused now

*June 3, 2010*

**math**

13 miles per mile I THINK

*June 3, 2010*

**math**

YOur brother traveled 117 miles in 2.25 hours to come home for school break. What's the average speed he was taveling

*June 3, 2010*

**EDU**

she is right

*June 3, 2010*

**english**

It is a correct runon sentance, congrats

*June 3, 2010*

**WRITING**

Some say that texting on a cell phone is a bad thing for students focus, but their is a simple thing we can do is by having the teachers go around the classroom to see if students are texting. how can i fix this run-on sentence

*May 25, 2010*

**chem help!!**

i am talking about nails..nails that have iron in them

*May 25, 2010*

**chem help!!**

What effect does bending, stress, or machining have on the tendency of iron to corrode?

*May 25, 2010*

**Chemistry**

The problem on my homework is: What mass in grams of iron metal is required to react with 2.50 L of .1500 M of sulfuric acid to produce 18.35g of iron (III) sulfate? please help!

*May 23, 2010*

**language arts**

Is it... a lyric poem??

*May 13, 2010*

**language arts**

What kind of poem is "Solitude" by Ella Wheeler Wilcox? (lyric, ode, haiku, etc.)

*May 13, 2010*

**math**

How do I figure out what the nth term is in a sequence? Exmaple: 1, 3, 5,7, What would be the 100th term? IF adding 2 to each would the formula be n+2? How to calculate 100th term?

*May 9, 2010*

**math**

A person writing a book numbered the pages consecutively starting with 1 and had written 4553 digits. how many pages had she numbered?

*May 7, 2010*

**WRITING(POEMS)**

IS BUTTERYNESS SPELLED LIKE THIS BECAUSE SPELL CHECK IS NOT PICKING IT UP .

*May 5, 2010*

**Math**

1/6 of 18 =3 so shirley has 3 quarters =75 cents 1/3 of 18=6 so shirley has 6 dimes =60 cents and 1/2 of 18=9 so shirley has 9 nickels= 45 cents 75+60+45=180 cents

*May 3, 2010*

**physics**

"An adiabatic process is a process in which no heat is transferred. This can happen if the process happens so quickly that there is no time to transfer heat, or if the system is very well insulated from its surroundings. " im not sure what the question means...either...

*May 3, 2010*

**algebra II-URGENT**

P=2l+2w 270=2(w+25)+2w 270=2w+50+2w 220=4w 55=w so l=w+25 =55+25 =80 Check P=2l+2w 270=2(80)+2(55) 270=160+110 270=270

*May 3, 2010*

**Math**

Im not sure by your equation why you are to follow that process, but if you are to first square the two numbers then you get rid of the -ve ie: 567.2^2 and (-459.6)^2 i hope this helps

*May 3, 2010*

**Algebra II**

85=(88+83+75+80+x)/5 85(5)=88+83+75+80+x 425-326=x 99=x

*May 3, 2010*

**algebra**

-8x-3y=2 -3y=2-8x y=(8/3)x+2 so the slope of the given line is 8/3 and since the line is parallel, it will have the same slope. now we can use the given point to solve for b y=mx+b y=(8/3)x+b -4=(8/3)(6)+b 12=b

*May 2, 2010*

**calc**

the tangent line to the graph of y=sin x at the point (2pi/3, (radical 3)/2) crosses the sine graph at the point where x=?

*May 2, 2010*

**Math**

m=y2-y1/x2-x1 =(-3)-(-6)/1-(-5) =3/6 =1/2 y=mx+b y=1/2x+b now use either of the points to solve for b -3=1/2(1)+b -3-1/2=b 2.5=b so y=0.5x+2.5

*May 2, 2010*

**math**

The volume of a pyramid is V=1/3Bh where B is the area of the base and h the height from the base to the apex. This works for any location of the apex, provided that h is measured as the perpendicular distance from the plane which contains the base. so yes, this statement is ...

*May 2, 2010*

**Math**

Divide and Simplify: y^2-25/7 divided by 7y+35/49

*May 2, 2010*

**Math**

Divide and Simplify: y^2-25/7 divided by 7y+35/49

*May 2, 2010*

**Math**

Multiply and Simplify: Can you please show me the steps on how you get the answer. Thank You 2/4n+6 times n^2+2n-3/n+1

*May 2, 2010*

**MATH**

can someone explain how an quadratic equation with factoring and give an example,PLEASE!

*May 1, 2010*

**MATH**

can someone explain how an quadratic equation with factoring and give an example,PLEASE!

*May 1, 2010*

**Food Chemistry**

Calculate the amounts and pH values for preparing the following acetic acid/acetate buffer solution. 1.) In the first step, If you plan to prepare a 2.00 M sodium acetate in 200.0 mL distilled water, how many grams of sodium acetate should be added in water? 2.) B. In the 2nd ...

*April 29, 2010*

**Physics**

You meet a person with prescription glasses of +1.74 dpt. What is the near point of this person? Express the result as a positive number! Hint: the near point of a healthy person is 25 cm. An object placed at this distance will form an image at the near point of the person. i ...

*April 28, 2010*

**physics**

You meet a person with prescription glasses of +1.74 dpt. What is the near point of this person? Express the result as a positive number! Hint: the near point of a healthy person is 25 cm. An object placed at this distance will form an image at the near point of the person. 1....

*April 27, 2010*

**physics**

A light ray strikes a flat, L = 1.6 cm thick block (depth) of glass of refractive index 1.49 at an angle of 30 with the normal. Calculate the lateral shift of the light ray, d. there is a digram showing the light ray continuing at the same angle (30* to normal) until it exits ...

*April 27, 2010*

**physics**

Two parallel wires carry currents I1=100A and I2 (they run in the same direction). The top wire is held in position; the bottom wire is prevented from moving sideways but can slide up and down without friction. if the wires have a mass of 10g/meter of length, calculate I2 such...

*April 24, 2010*

**Math**

If spiner has 3 equal sections of yellow, blue and green and another has equal sections of yellow, blue, green and red and you spin both spinners at the same time what is the probabiliy of getting 2 colors that are the same?

*April 22, 2010*

**Trigonometry**

How do I find the value of sin(a-b) if tana=4/3, cotb=5/12, 0<a<90, and 0<b<90?

*April 15, 2010*

**Math Analysis**

Oh wow that is simple. Thank you so much for your help.

*April 15, 2010*

**Math Analysis**

How do I simpllify 1-sin^2x/1-cos^2x?

*April 15, 2010*

**Math analysis**

thank you for your help

*April 15, 2010*

**Math analysis**

How do I simplify cscx-cotxcosx?

*April 15, 2010*

**math**

Can you help me solve this solving quadratic equation.x^2-x-1=0

*April 15, 2010*

**physics**

A thin cylinder of copper has a mass m=50g and is 1 meter long. what is the minimum current that has to flow through the cylinder for it to levitate in a magnetic field of 0.1T. would i use B=uI/2pi(d) im confused about what d is and how the mass relates to this...

*April 15, 2010*

**math check**

Peform each indicated operation and simplify. Can you please check my answers. Thank you. A)(x^2+2x-3)+ (2x^2-x+1) Answer: 3x^2+x-2 B) (-x^3+2x^2-5)+(x^2-x+6) Answer:-x^3+3x^2-x+1 C) (3y^2-x+7)-(y^2-2x+3) Answer:4y^2-3x+10 D)(2x^2-xy+y^2)-(-3x^2+xy+y^2) Can you help me with ...

*April 14, 2010*

**Math Check**

Srry the problem for a is suppose to be 2x(x^2-3x+2) this is my answer 2x^3-6x^2+4x

*April 14, 2010*

**Math Check**

All the directions say for these three problems is multiply and simplify. Are my answers correct? Thank you A)(x^2+2x-3)+(2x^2-x+1) Answer: 2x^3-6x^2+4x B)(x+1)(2x-1) Answer: 3x-1 C)(x-2)(x^2+2x-3) Answer: x^3-7x+6

*April 14, 2010*

**Physics**

You often see birds resting on power lines that carry currents of 50A. the copper wire on which the bird stands has a radius of 1.1cm. assuming the birds feet are 4.0 cm apart, calculate the potential difference across its body... -------- V=IR R=pL/A I=50A L=4.0cm p=from ...

*April 14, 2010*

**calculus**

the limit from n->infinity of the summation of [2+(3/n)k]^2(3/n) when k=1

*April 13, 2010*

**chemistry**

a 500.0 g sample of h2o2 conatins 31.50% h2o2 by mass find the mass of water in the solution

*April 12, 2010*

**math**

I'm doing solving quadratic equations.I need help with couple of problems. k(k+5)=0,4r^2=100

*April 7, 2010*

**Physics**

A particle of mass m moving at 5 m/s in the positive x direction makes a glancing elastic collision with a particle of mass 2m that is at rest before the collision. After the collision, m moves off at an angle of 45 degrees to the x axis and 2m moves off at 60 degrees to the x...

*April 6, 2010*

**computers**

Explain what the Easter eggs in microsoft are? They are like hidden messages right? Why do they put them in there? Can they still put them in there? Why would they want to do put hidden messagesin their programs. Where can I find out more inmformation?

*April 5, 2010*

**social studies**

how is the iroquois confederacy diff. from the colonial government?

*March 25, 2010*

**social studies**

comapare and contrast the Irouquios confederacy and the colonial government.

*March 25, 2010*

**Math**

A set of scores with a normal distribution has a mean of 32 and a standard deviation of 3.7. Which score could be expected to occur the least often?

*March 25, 2010*

**6th grade**

what happened to Rome after the Punic Wars?

*March 24, 2010*

**algebra**

-4x^2-18x+10

*March 23, 2010*

**math**

Can you help with three problems 1)2x^2+7x+3 2)6x^2+5x-4 3)4x^2+12x+9 I have to factor this problems.Please help

*March 17, 2010*

**math**

Erin takes a total of 5 hours in her boat to travel a distance upriver and return downriver the same distance. If the time traveling upriver is twice the time traveling downriver, how many hours does each trip take? How do I put this into two equation and use the matrix to ...

*March 16, 2010*

**chemistry**

How many grams of CH4 are needed to react with 160.0 grams of Br2

*March 15, 2010*

**physics**

Gold ions (Au+) are accelerate to high speeds using electric fields. These ions are then passed through a region where uniform electric E and magnetic B fields are present. If the ions are traveling to the right, which configuration of E and B will serve as a velocity selector...

*March 13, 2010*

**algebra**

hi I need help with it!!!! HELP!!!!!

*March 13, 2010*