Monday

December 5, 2016
Total # Posts: 1,949

**chemistry**

When Kl and Pb (NO3)2 is combined, is this a chemical or physical change?

*October 5, 2009*

**math**

from a base elevation of 76000 ft, a mountain peak in colorado rises to a summit elevation of 14321 ft over a horizontal distance of 15841 find the grade of the peak

*October 4, 2009*

**pre calculus**

evaluate if possible the function at the given values(s) of the independent variable. Simplify the results. f(x)=7x-4 a) f(0) b) f(-3) c) f(b) d) f(x-1)

*October 4, 2009*

**calculus**

f(x)=2x^2-4 f(x+delta x)-f(x)/delta x solve for the solution

*October 1, 2009*

**ap calculus**

ok this is a problem similar to it correct

*September 26, 2009*

**ap calculus**

yes i need help can you solve it out then i will ask you questions from then

*September 26, 2009*

**ap calculus**

write the general form of the equation of the lines throught the point (a) parallel to the given line and (b) perpendicular to the given point point- (2,1) line- 4x-2y=3

*September 26, 2009*

**Math116**

Evaluate: 4r for r=12 and s=6/s Simplify your answer= 6/s Is my answer right? Thank you.

*September 26, 2009*

**Math**

Lisa needs to make 2 times as many tunas as cheese sandwiches and 4 times as many ham as cheese sandwiches. If Lisa makes 56 sandwiches, how many of each of the 3 kinds will she make?

*September 26, 2009*

**health topics**

i need help with a interesting topic about obesity in america i want it to be unique and different that catches your attention i can't think of any at the moment

*September 25, 2009*

**history**

with the improvement in transportation and communication, would the original articles of confederation work for all 50 states today? Explain why?

*September 24, 2009*

**spanish**

need help with the rest

*September 23, 2009*

**spanish**

Fill in the missing blank. Estas aburrido? No, _________ cansado. Donde _______ la escuela? Esta en el parque Fairmount. Como es tu novio? _______ muy romantico?

*September 23, 2009*

**chemistry**

For CH3CO2H, give the hybridization and approximate bond angles for each atom except hydrogen. Also, draw an orbital bonding picture. Show all lone pairs. Can this be drawn on paint and uploaded to me? Thank you.

*September 23, 2009*

**biology**

LIST AND EXPLAIN FIVE USES OF SCIENCE

*September 23, 2009*

**college essay**

i need help cominmg up with An Experience That Has Changed My Life and I can think of any. I want a topic that will make a very good college essay.

*September 22, 2009*

**Mum Bett**

ok so she sued because she thought she didn't have any rights and freedom

*September 21, 2009*

**Mum Bett**

what was Mum Bett personal fight to uphold the Declaration of independence

*September 21, 2009*

**declaraction of independence**

ook great

*September 21, 2009*

**declaraction of independence**

its shows the rights and freedom that people should have

*September 21, 2009*

**declaraction of independence**

How did the Declaration of Independence influence American Government?

*September 21, 2009*

**senior project**

ok that sounds good

*September 14, 2009*

**senior project**

yes just need a little more

*September 14, 2009*

**senior project**

what can be inclued in the senior project about it

*September 14, 2009*

**senior project**

how can i do community service about this topic

*September 14, 2009*

**senior project**

how can i do a senior project about Obesity in America

*September 14, 2009*

**senior projects**

senior projects that are interesting and different from others

*September 14, 2009*

**senio projects**

what are some great senior project ideas?

*September 14, 2009*

**Math/Algebra**

How do I make a model with dots on graph paper that shows that 3 x 14 = 42? Thanks!

*September 14, 2009*

**precalc**

Determine whether the equation is linear in x. 5-3x=0 5=10/2 x+3=x-5

*September 14, 2009*

**physics**

An explorer is caught in a whiteout (in which the snowfall is so thick that the ground cannot be distinguished from the sky) while returning to base camp. He was supposed to travel due north for 4.5 km, but when the snow clears, he discovers that he actually traveled 7.8 km at...

*September 14, 2009*

**physics**

A car is driven east for a distance of 45 km, then north for 33 km, and then in a direction 32° east of north for 22 km. Determine the total displacement of the car from its starting point (counterclockwise from east).

*September 14, 2009*

**physics**

In the sum A+ B =C , vecto rA has a magnitude of 11.0 m and is angled 32.0° counterclockwise from the +x direction, and vector C has a magnitude of 15.0 m and is angled 18.0° counterclockwise from the -x direction. What are the magnitude and the angle (relative to +x) ...

*September 13, 2009*

**algebra II**

I really need help getting an answer to this problem it will be nice if you can show me the steps to get to this answer x^4y^4/x^2y^5

*September 9, 2009*

**college majors**

ok thanks

*September 4, 2009*

**college majors**

do they ofer scholarships and grants for them as well

*September 4, 2009*

**college majors**

I want to become a pediatrician, what should i major in college for?

*September 4, 2009*

**slaughterhouse 5**

it tell me who is related to who

*August 31, 2009*

**slaughterhouse 5**

What is the connections that Billy Pilgrim have with the other characters?

*August 31, 2009*

**Because of Winn-Dixie**

What is the setting and problem in the book Because of Winn-Dixie ?

*August 29, 2009*

**Physics**

Thanks!

*August 26, 2009*

**Physics**

So I solve for a=J/v*s to get the current (4.5*10^2/1.5*120). I hope I got this right and thanks very much.

*August 26, 2009*

**Physics**

I'm stumped on what formula to use for the following question. A 1.5V battery does 4.5*10^2 J of work in 120s. Calculate the current through the battery Calculate the number of elementary charges that pass through the battery. I've been trying to figure out the formula...

*August 26, 2009*

**Math**

( the I is the absolute value marks) I12(-8)I

*August 26, 2009*

**Unit of Inquiry**

Which are the bangladeshi local organizations working to uphold the rights of women and children? What are their goals, missions, structure, function, real life evidence they are working and the challenges they face while they are upholding human rights of children and women?

*August 15, 2009*

**Introduction to Finance: Harvesting the Money Tree**

You are an upper-level manager in a company. Which financial ratios would you consider most useful? Would these ratios be different than the ones you would consider useful as an investor? Why or why not?

*August 8, 2009*

**math**

You toss a polybutadiene rubber ball 40 feet straight up from ground level. Each time it bounces, it rebounds 2/3 of the distance from which it fell. It continues bouncing indefinitely. How far does it travel before it comes to rest?

*July 9, 2009*

**Math**

The points (4, –5) and (– 4, 1) are endpoints of a diameter of a circle. (a) Find the center of the circle. (b) Find the length of the radius of the circle. (Note that this is a distance.) Give the exact answer. Show work. (c) State the equation of the circle (in ...

*June 24, 2009*

**Algebra**

Thanks!

*June 22, 2009*

**Algebra**

How can algebra be used to solve this problem? The boy solved 10 problems correctly at 8 cents a problem for a total of 80 cents, and 16 incorrectly at the cost of 5 cents for a total of 80 cents. Therefore, neither the boy nor his father owed each other anything at the end of...

*June 22, 2009*

**Algebra**

Why would you say it was 4? This is what I thought to.

*June 17, 2009*

**Algebra**

Find the difference quotient: f(x+h)-f(x)/h for f(x) = 4x-9 and simplify.

*June 17, 2009*

**Algebra**

Now I will work on the distance and slope parts. Hopefully they will be correct to!

*June 13, 2009*

**Algebra**

oops I misplaced the decimal. So yea (6,0.5) is the solution I came up with.

*June 13, 2009*

**Algebra**

I think I figured it out. The answer can contain a fraction along with whole numbers. So i guess the mid point would be (6,.05) correct?

*June 13, 2009*

**Algebra**

(x1 + x2)/2, y1 + y2)/2 = 3+9/2 = 12/2 = 6 -1+2/2 = 1/2 = .05 This is what I got for the mid point. is this correct? I got 6 for the first set of numbers, and .05 for the second. How do I determine the mid point?

*June 13, 2009*

**Algebra**

Consider the points (3, –1) and (9, 2). (a) State the midpoint of the line segment with the given endpoints. (b) Find the distance between the points. Show some work. Give the exact answer (involving a radical), and also an approximation to three decimal places. (c) Find ...

*June 13, 2009*

**college interview question**

can i just say i tryed my best in everything i could so i don't regret it

*June 8, 2009*

**college interview question**

how will you answer this is i don't regret something Is there anything that you regret doing (or not doing) during high school?

*June 8, 2009*

**ecology**

I am not very good in science, and math. However, I do very well in english, writing, puncuation, and grammar. Here is my question. Do you believe humans can harvest forest resources in an enviromentally friendly way? Or, should national forest be left in their natural state ...

*June 6, 2009*

**chemistry**

In general, which reaction(forward, reverse, or neither) is favored if the value of K at a specified temperature is a. equal to 1? b. very small c. very large

*June 5, 2009*

**chemistry**

Which species are left out from the Keq expression, and why?

*June 3, 2009*

**Normal Public High School Chemistry**

Please assist me in answer this question please show me all the formulas used and the units and how to convert them if needed. Thank You. If the half-life of Ba (140, 56) is 12.75 dyas, how many atoms of (140, 56) Ba will be left after 9 weeks if there were initially 2.4 mol ...

*June 3, 2009*

**sat scores**

okay thanks

*June 1, 2009*

**sat scores**

What does a 1426 mean on the SAT as a score is it good bad or in between?

*June 1, 2009*

**chemistry**

unsaturated

*May 29, 2009*

**chemistry**

i think it is saturated

*May 29, 2009*

**chemistry**

so it is unsaturated

*May 29, 2009*

**chemistry**

If 20 g KCL is dissolved in 100g of water at 20 degrees C, is the solution unsaturated, saturated, or supersaturated?

*May 29, 2009*

**chemistry help**

411 grams

*May 28, 2009*

**chemistry help**

so what do i write as the answer

*May 28, 2009*

**chemistry help**

what mass of ammonium chloride can be added to 100g of water at 20 degrees C before the solution becomes saturated

*May 28, 2009*

**chemistry**

need help please???

*May 27, 2009*

**chemistry**

what mass of ammonium chloride can be added to 100g of water at 20 degrees C before the solution becomes saturated

*May 27, 2009*

**Language arts**

Like i.e. the lions were his favorite because they had beautiful manes and eyes and the giraffes were neglected because they had long necks and spotted fur.

*May 25, 2009*

**Language arts**

That sounds like a good start. You could say that maybe the zoo keeper had a favorite animal [to represent the "perfect" race] and that he neglected the other animals and wouldn't let them play with the other animals [those captured in concentration camps] ...

*May 25, 2009*

**Statistics**

For the gene pair that determines eye color, each gene trait may be one of two types: dominant brown (B) or recessive blue (b). A person possessing the gene pair BB or Bb has brown eyes, whereas the pair bb produces blue eyes. a) Suppose both parents of an individual are Bb. ...

*May 25, 2009*

**looking for college scholarships**

ookay

*May 22, 2009*

**looking for college scholarships**

Do you know of any that you applyed for?

*May 22, 2009*

**looking for college scholarships**

I am a junior in high school and I am in the process of trying to find scholarships that I can apply for right now at the moment. I am trying to start early as I can. Thanks!! If you can help me find scholarships and or grants. But i say absolutely no loans at all. :)

*May 22, 2009*

**Science - Weather**

Describe what would happen to the temperature on Earth if the amount of energy reflected back to space a) increased to 80% b) decreased to 5%

*May 21, 2009*

**chemistry help**

can you tell me what to write

*May 20, 2009*

**chemistry help**

What mass of ammonium chloride can be added to 100 g of water at 20 degrees C before the solution becomes saturated?

*May 20, 2009*

**Question ! :)**

I was thinking of things like Myspace and how putting your personal information out there can put your life in jeopardy. Also, if you save something to a hard drive on a computer open to other people, then anyone can see your information and do whatever they want with it. I&#...

*May 19, 2009*

**Question ! :)**

Why is it important to use caution before putting any personal information on a computer? (example(s) required) I think everyone knows the general idea to the answer to this question but this is my final exam question...so it has to be thorough. Any specific ideas for an ...

*May 19, 2009*

**chemistry**

a polymer is a molecule with repeating units usually joined with covalent chemical bonds. 2 examples of naturally occurring polymers are proteins & starches.

*May 19, 2009*

**pre calc need help**

Find the indicated function value. Do not use a calculator. tan 180 degrees

*May 18, 2009*

**chemistry help asap**

explain how paper chromatography separates the components in a solution

*May 18, 2009*

**Math**

Please explain ... What percent of 60 is 72? 35 is what percent of 20? Thank you!

*May 17, 2009*

**physics**

I have a few questions that i am not too sure how to figure out... 1- as a racing car zooms by you, its pitch decreases by 20%. If the speed of sound is 345m/s, how fast is the car travelling? 2-a person has a threshold of hearing of 5db. another person has a threshold of ...

*May 17, 2009*

**12th grade- Trigonometry**

Find the exact value of each expression Cos^-1(0) Tan^-1 sqrt(3)/3 Sin^-1(1) Since the expressions are capitalized, I'm not sure if I have to do anything different. Any help is appreciated.

*May 14, 2009*

**Math**

Please explain how I write this into a decimal and as a fraction in simplest form: 94.6% Thanks!

*May 10, 2009*

**Maths**

What are like terms

*May 7, 2009*

**Maths**

What are lke terms in formula

*May 7, 2009*

**newletters ideas**

okay great

*April 28, 2009*

**newletters ideas**

for all more like

*April 28, 2009*

**newletters ideas**

what is a great newletter topic that I can do on about school or classroom?

*April 28, 2009*

**Math**

How do I figure out what is greater 67.5% or 135/200 ? Thanks!

*April 27, 2009*

**exponents**

I need help with a few problems... (4^3 x 5^-2)(5^4 x 4^-5)/ 4^-3 x 5^3 and (2^x+2) - (2^x+5) = -7 please help!:)

*April 5, 2009*