Sunday

December 4, 2016
**Chemistry-help needed**

Can we use an ACS/AR grade chemical for UV spectrophotometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?

*Monday, February 21, 2011 by candy*

**physics**

thanks for solving my question pasted on dated 18.02.2011 at 10.20.pm.2nd question. a wt lifter lifts a wt of one kg against force of gravity through a distance of .8 mtr. how much cals he will burnt from the food he had taken.

*Monday, February 21, 2011 by ajmer singh sidhu ludhiana*

**Calculus 2nd Post please help**

Find an equation of the tangent line to the graph of the function f defined by the following equation at the indicated point. (x - y - 1)3 = x; (1, -1)

*Friday, February 18, 2011 by Anonymous*

**Chemistry-pls help**

Can we use an AR grade chemical for UV spectrophotometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?

*Thursday, February 17, 2011 by candy*

**Chemistry-help needed**

Can we use an AR grade chemical for UV spectrometric analysis? Or is it a must to use a chemical that is specially designated (SpectrAR grade) for UV analysis?

*Thursday, February 17, 2011 by candy*

**pre- algebra**

solve and simplify 6 to the 4th power * 6 to the 2nd power

*Thursday, February 10, 2011 by john*

**5tth grade math**

every student in a second grade class sends a valentine to each of the other students in the class, for a total of 306 valentines.How many students are in the class.

*Thursday, February 10, 2011 by tryston*

**math**

Could someone please how this problem should be solved? Simplify and write the answer in exponential notation using positive exponents. 2 to the 4th x 2 -2nd power

*Sunday, February 6, 2011 by Dennis*

**math**

On the 1st day the movie opened 35 people saw it. On the 2nd day 16 more people came than on the 1st day so that 86 people had seen the movie after the second day. On the 3rd day 67 people came, 16 more than on the 2nd day, If each day 16 more people saw the movie than the day...

*Monday, January 31, 2011 by Rusty*

**algebra**

A roof rises 1.4 feet vertically and 11.8 feet horizontally. What is the grade of the roof? The grade of the roof is _____% how do I begin to find the answer to this

*Monday, January 31, 2011 by Joyce*

**third grade hw help**

My third grade is needing help with his science homework please the question is as follow List as many resources as you can that you use during one day? Thanks!

*Wednesday, January 19, 2011 by Nicky*

**math**

A rectangle is 4 times as long as it is wide. A 2nd rectangle is 5centimeters longer and 2 centimeters wider than the first. what are the dimensions of the original rectangle?

*Thursday, January 13, 2011 by maya*

**Money Sense**

which do individuals usually hve more control over? How much they make or how much they spend? i think its 2nd one?

*Tuesday, January 11, 2011 by Anonymous*

**Math **

i have to write this out in word form because it doesn't look rite when i use numbers... What is the value of X when Y=7? Problem: negative threeX to the 2nd power plus fourY minus one equals zero 2 -3x + 4y - 1 = 0

*Monday, December 13, 2010 by Kerri*

**7th grade**

Okay, so what are the axiom names? (honors math) Should this go in the 8th grade place? Oh well...

*Monday, December 13, 2010 by Chloe*

**college math intermediate alg**

4y to the 5th power 81q to the 7th power ________________ X ___________________ 9q to the 2nd power 16y .

*Monday, December 13, 2010 by kathy*

**college**

4y to the 5th power 81q to the 7th power ________________ X ___________________ 9q to the 2nd power 16y .

*Monday, December 13, 2010 by Anonymous*

**Pre Calc**

f(x,y)=ln(5x^2-7y^3) Find ALL 2nd derivatives. fxx,fxy,fyx,fyy

*Friday, December 10, 2010 by Sara*

**5th grade**

how to do a double line graph with 2 superbowl teams scores with their mode median,and range for the first seven games. this is so hard for fifth grade. i need help

*Thursday, December 9, 2010 by deeandra*

**math **

franklin school has 3 boys for every 4 4 girls in fifth grade . there were 140 students in the fifth grade. A.how many are boys B.how many are gorls

*Tuesday, December 7, 2010 by cindy*

**math**

franklin school has 3 boys for every four girls in the fifth grade. there are 140 students in the fifth grade. a.how many are boys? b.how many are girls?

*Monday, December 6, 2010 by cindy*

**physics**

A basketball is thrown with a velocity of 10.5 ft/s downward from a height of 6.8 ft. The coefficient of restitution between the ball and the floor is 0.65. How high does the basketball go after its 2nd bounce?

*Thursday, November 25, 2010 by sandhu*

**physics**

A basketball is thrown with a velocity of 10.5 ft/s downward from a height of 6.8 ft. The coefficient of restitution between the ball and the floor is 0.65. How high does the basketball go after its 2nd bounce?

*Thursday, November 25, 2010 by sandhu*

**To drwls**

I posted some Physics questions yesterday, but no one got the chance to look at them, so can u please go to 2nd page and look through them.

*Tuesday, November 23, 2010 by Anabelle*

**Statistics/2nd post**

How is the p-value of a hypothesis test related to type I and type II error?

*Sunday, November 21, 2010 by Taylor*

**Computer Programing & Logic Design**

Submit pseudocode and a flowchart for the following programming exercise: Test Average and Grade Write a program that asks the user to enter five test scores. The program should display a letter grade for each score and the average test score. Design the following functions ...

*Saturday, November 20, 2010 by Anonymous*

**5th grade**

what are the answers to the 5th grade unit 1 test harcourt

*Friday, November 19, 2010 by Destiny*

**Math**

Hello, I have two more rational exponent question that I wanted to verify please: 4x^3y^-2 _________ 2x^-1y^4 = 2x^4y^6 is this correct? 2nd question: [w^1 / w^-3] my answer: = [w^(1)(-4)/ w ^ (-3)(-4)] = w^-4 / w^12 = w^12 / w^4 = w^3 / w Is this right?

*Thursday, November 18, 2010 by Dania*

**math**

At Smart Middle School students are required to take 7 classes each grading period. At the end of each grading period a student is assigned a final grade (A, B, C, D or F) for each class for the grading period. A student’s overall grade point average for the grading ...

*Tuesday, November 16, 2010 by Anonymous*

**5th grade**

My daughter is taking OLSAT test for gift & talented middle school. All practice questions I find are for Kindergarten or 1st grade. Any ideas on how she should prepare? Thank you.

*Sunday, November 14, 2010 by Elaine*

**Chemistry**

In calcium, the electron configuration is 2-8-8-2. Why does the 3rd level have more energy than the 2nd if they're both 8?

*Saturday, November 13, 2010 by danny123*

**physics**

A dinner plate drops and breaks. This best illustrates the ______ law of THERMODYNAMICS A. 1st b. 2nd c. 3rd d. 4th

*Friday, November 12, 2010 by Christina*

**Science**

how do you find the degrees for a pie graph (ex) 1st 19 2nd 15 3rd 20 4th 15 5th 22 6th 15 ??? plz help!

*Monday, November 1, 2010 by popcorn010*

**Math**

find the the 2nd derivative and set equal to zero in order to find inflection points of the function f(x)=1/(5x^2+4)

*Friday, October 29, 2010 by Shawn*

**math**

How do you find the rule of the sequence if the 2nd term is 40057.07 and the 5th term is 19192.53

*Monday, October 25, 2010 by juan *

**english**

I'm a 8th grade student and i need to write a Proffesional Business letter to My 7th grade english Teacher can you help?

*Friday, October 22, 2010 by Abigail*

**Math**

Use 2nd Fundamental Theorem of Calculus to find derivative of f(x) = integral of 2x^2 to x-5 of square root of Sin(t)dt. Please help.

*Sunday, October 17, 2010 by Nick*

**english grade 1**

how to teach interrogative and relative pronoun to grade 1 students

*Sunday, October 10, 2010 by eljhay*

**3rd grade**

Make a tally chart for the number of students in the third, fourth, and fifth grade classes: 26,25,27,27,26,28,27

*Thursday, October 7, 2010 by Need Help*

**MATH ALGEBRA (2ND TIME POSTING! ) Please Help!! :)**

The Cost of installing new kitchen cabinets is $150 for delivery for all the cabinets and an additional $45 to install each cabinet. a) Develop a model to give the total cost for a set of n cabinets. b) What is the total cost for a set of 18 cabinets? c) Find the number of ...

*Tuesday, October 5, 2010 by vid. *

**math need asap**

4x+5y=27 x=26-4y 4(26-4y) + 5y = 27 104 - 16y+ 5y = 27 -21y = - 77 21y = 77 y = 77/31 Now, I’m suppose to return to the 2nd equation x=26-4y and substitute 77/31 for x, I don’t understand if the is correct way or how to get the answer for the ordered pair.

*Thursday, September 30, 2010 by SAP*

**physics**

a car traveling at 7.0 m/s accelerates uniformly at 2.5 m/s to the 2nd power to reach a speed of 12.0 m/s. how long does it take for this acceleration to occur.?

*Wednesday, September 22, 2010 by Danica*

**physics**

as the shuttle bus comes to a sudden stop to avoid hitting a dog, it accelerates uniformly at -4.1 m/s to the 2nd power as it slows from 9.0m/s to 0.0 m/s. find the time interval of acccelaration for the bus

*Wednesday, September 22, 2010 by Danica*

**6th grade**

What is the simple and complex for this sentence. Making a bad grade on such an easy spelling test is such an embarrassment.

*Tuesday, September 21, 2010 by Ashleigh*

**math**

from a base elevation of 8600ft a mountain peak in Colorado rises to a summit elevation of 14660ft over a horizontal distance of 15838ft find the grade of the peak . the grade of the peak is ? %

*Saturday, September 18, 2010 by Anonymous*

**6th grade science**

I recently posted a 6th grade science question at 9:11 p.m. Can someone take a look at it for me. Thank you in advance!

*Friday, September 17, 2010 by Reed*

**Physics**

A relay race is run along a straight line track 300.0 m long running south to north. 1st runner - starts at the South end of the track and passes the baton to a teammate at the north end of the track. 2nd runner - races back to the start line and passes the baton to a 3rd ...

*Monday, September 13, 2010 by Kayla*

**algebra**

how do you make a small 2 if if you were going to write to the 2nd power?

*Saturday, September 11, 2010 by Mizohu*

**8th grade Math**

I'm actually in 7th grade, but I'm doing 8th grade pre-algebra, but anyway, here: I'm supposed to simplify these four problems and I don't really understand how: 28s (15 power) ____ 42s (12 power) 4m+(n[7th power]m) 63m(5 power)n(6 power) ______________________...

*Thursday, September 9, 2010 by Mika*

**english**

Could I get like a character essay outline? Like what I should have in my 1st, 2nd, 3rd, sentence, etc. How to start it off and flow towars the end? Thanks!

*Tuesday, September 7, 2010 by english*

**Advise**

Ok, I am going to grade 12 and my university requires a 90% for advanced functions. In grade 11, I got a 78% with no tutoring. Is there who is willing to help me free of cost for tutoring or even websites that would help me.

*Friday, September 3, 2010 by prethy*

**latin**

how do you do this? 2nd person, future perfect, plural of augeo, augere, auxi, auctus?

*Thursday, August 12, 2010 by harrison*

**Language Arts**

When I'm using 'grade' in a sentence, would it be capitalized? I.e. Jorge is in Grade 9? PS I'm Canadian, so maybe no US grammar rules?

*Monday, July 26, 2010 by Barb*

**Economics**

Four roommates are planning to spend the weekend in their dorm room watching old movies, and they are debating how many to watch. Here is their willingness to pay for each film: film 1st. 2nd. 3rd. 4th. 5th

*Tuesday, July 13, 2010 by Anonymous 2*

**college**

let i = the square root of -1 with i to the 1st power =i, i to the 2nd power= -1, i to the 3rd power =-i , i to the 4th power=1 find ito the power 215

*Monday, July 5, 2010 by kate*

**chemistry, chemical kinetics **

I keep getting these questions wrong, could someone please help. Thanks so much. Question 1 For the following overall reaction, the rate constant is 3.4x10^-2. A(g)+ 2B -> 2C + D What may be the rate reaction? Question 2 The rate law for this reaction is R=k[NO][Cl2] ...

*Friday, July 2, 2010 by student*

**Websites for Third Grade**

Can you give me some websites to study for 3rd grade is these areas? Social Studies,English Language Arts, Math,Science

*Thursday, July 1, 2010 by ☻ Vanessa Sarafina ☻ *

** Natl. parks **

Why are these national parks in Kenya considered tourist attractions? (Ruaha and Mt. Kilimanjaro) I should know why the 2nd park is an attraction. The mountain is well-known in Africa.

*Tuesday, June 8, 2010 by AL 92*

**7th grade**

I was wondering if there were any sample placement tests that I could give to my son who is currently in 7th grade homeschool.

*Wednesday, June 2, 2010 by Brenda*

**science**

descibe and explain 4 fates of a star ( after they die)? this is my 2nd last question to finish my worksheet and it is for marks please help me thanks

*Wednesday, May 26, 2010 by anu*

**chemistry**

calculate the percent composition or w/v% of 3x10 to the 2nd power mL solution containing 15g of glucose

*Tuesday, May 4, 2010 by Quentin*

**Math**

I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale: TOTAL GRADES: WEIGHT 90% ---------- 5% 100% ---------15% 95% --------- 15% 90% -----------5% 94.5% --------60% I multiplied the total grade by the percent...

*Sunday, May 2, 2010 by Sue*

**Statistics**

I'm confused.Can someone tell me if I have done this correct.I'm trying to get the average using a weighted scale: TOTAL GRADES: WEIGHT 90% 5% 100% 15% 95% 15% 90% 5% 94.5% 60% I multiplied the total grade by the percent, then added the percent. But I get 109.20 as a ...

*Sunday, May 2, 2010 by Sue*

**statistics**

Compare the two sets and describe what you see. 1st set: 57 61 57 57 58 57 61 2nd set: 61 52 69 64 46 54 47

*Sunday, May 2, 2010 by Faith*

**7TH GRADE**

HOW DO I STUDY BETTER? WHEN THERE ARE TO MANY DISTRACTIONS IN MY HOUSE. BECAUSE MY TEST GRADES ARE BAD AND THEY ARE PULLING DOWN MY AVERAGE GRADE

*Thursday, April 29, 2010 by Anonymous*

**7th grade **

HOW DO I STUDY BETTER? BECAUSE MY TEST GRADES ARE BAD, SO THEY ARE PULLING MY AVERAGE GRADE DOWN.

*Thursday, April 29, 2010 by Anonymous*

**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 ...

*Thursday, April 29, 2010 by Lauren*

**Science Grade 8**

I know that this seems like a REALLY EASY question, but for some reason I cannot think of anything! 2. What technologies have been developed that use light? This is from a grade 8 textbook, so nothing to technical!

*Saturday, April 24, 2010 by Maddison*

**Chemistry**

Rank Na, Mg and K in order of increasing 2nd ionization energy a. Na < K < Mg b. Mg < K < Na c. K < Na < Mg d. K < Mg < Na e. Mg < Na < K

*Friday, April 23, 2010 by Zacky *

**10th grade**

i need an interesting topic for a tenth grade informative essay

*Monday, April 19, 2010 by Dallas*

**math (find my grade)**

1% of my grade 82% 4% of my grade 76% 2% of my grade 100% 100% 100% 100% 100% 100% 100% 100% 82% could you please find my average. thank you!!!!

*Sunday, April 18, 2010 by rosie*

**math**

the graphs of the equation y = x to the 2nd and x = 2 intersect in A. 1point B. 2point C. 3point D.0point??

*Thursday, April 15, 2010 by crystal*

**math**

the graphs of the equations y = x to da 2nd and x = 2 intersect in A.1 point B. 2point C. 3point D. 0point?

*Thursday, April 15, 2010 by crystal*

**12th grade**

There are 300 students in 12th grade. What is the total population of the school?

*Monday, March 29, 2010 by Anonymous*

**math**

If you have a grade average at 50% and you score 89% percent on a test what does your grade equal out to?

*Friday, March 26, 2010 by tarra*

**classroom instruction**

• Write a 200- to 300-word response describing how you might teach this concept to students in a lower elementary grade and to students in a middle school grade. i picked problem solving i have this so far. i guess for each grade level (elem and middle school) i would ...

*Friday, March 19, 2010 by scooby*

**6th Grade Grammar**

The sixth grade class *had wrote* several papers about the great sphinx. How should the words in the asterisks be written? A. had written b. has wrote c. correct as is

*Wednesday, March 17, 2010 by David*

**Calculus**

When f(x)= 2/x (4th power) - 7/x (2nd power) + 5 find the derivative

*Friday, March 12, 2010 by Pat*

**Algebra**

How do Isolve this, 10q-25q to the 2nd power

*Thursday, March 11, 2010 by Jayda*

**computer science**

ineed help with c++. i am using code blocks and i have a problem with the compiler. when I run this code ¡é # include <iostream> using namespace std; int main() { cout<<"Hello World!"<<endl return(0); } this message keep pops up. ¡...

*Sunday, March 7, 2010 by lj*

**English - 2nd last question**

I have to answer this. "What effect does this tone have on the reader's response to the story. Support your answer."

*Wednesday, March 3, 2010 by AL 87*

**Science**

I know what a baseline is, but what baseline is used in astronomy? y do we need vary the length of baselines we use? Is the baseline the diameter of the earth's orbit? I really do not get the 2nd part.

*Monday, February 22, 2010 by Sara*

**Science**

I know what a baseline is, but what baseline is used in astronomy? y do we need vary the length of baselines we use? is it the diameter of the earh's orbit? I really do not get the 2nd part.

*Monday, February 22, 2010 by Sara*

**To Ms. Sue**

Ms. Sue which 2nd and 3rd sentences?

*Sunday, February 21, 2010 by Sara*

**classroom instruction 9not sure if i am right)**

• Search the Internet to locate and review your state’s educational standards for a grade level and subject that interests you, such as second-grade language arts or fifth-grade science. i am doing physical education in wisconsin. this is what i have i am not sure if...

*Friday, February 19, 2010 by scooby*

**math**

4/x - 4/y _________ 2 - 2 y X __________ 4 thats y to the 2nd power and x to the second power

*Thursday, February 18, 2010 by jess*

**6th grade**

Doyou have 6 grade text book?

*Monday, February 15, 2010 by carla*

**arithmetic**

How do i find the common ratio, when the 1st, 2nd and 7th terms of a A.P with common difference 2 are the first three terms of a G.P .

*Thursday, February 11, 2010 by Ren*

**6th Grade Science : Newton's First Law of Motion**

Explain the idea of streamlining.\, as it applies to the skydiver. If you have the following textbook: Scott Foresman Science, 6th Grade good for you! Look on pages B102 - B105.

*Friday, January 29, 2010 by David*

**7th grade**

i need help on Chemistry and i am in 7th grade i don't know how to do some problems and i would like to know how to translate statements into equation form?

*Friday, January 22, 2010 by Hope*

**english**

crossword puzzle- to lie in a sheltered, partly hidden place 2nd letter is an e also very strict or harsh starts with s

*Monday, January 18, 2010 by Anonymous*

**7th grade math**

I am in 6th grade and i am haveing trouble with statistics and how to memorize them!!! How can i do this???? Is there a special way???

*Monday, January 18, 2010 by nicole*

**chemistry**

pH Indicators 7 test tubes Added 5mL of water of 0.1 HCl and 5mL of water to 1st test tube. Poured 9mL of water to remaining 6 test tubes. Poured 1mL of solution from 1st test tube to 2nd. Poured 1mL from 2nd to third. Poured 1mL from 3rd to 4th. " " 4th to 5th. &...

*Friday, January 15, 2010 by linda*

**9th grade**

I'm doing this word search for my 9th grade honors physical science class, and i don't understand one thing. it says 'blue, striped and round are examples of this' when we're talking about matter and phases of matter and density/mass/weight/volume. stuff ...

*Wednesday, January 6, 2010 by Kelly*

**science**

i am in 7th grade accelerated science, so i am learing 8th grade material. I am having some difficulties with covelant and ionic bonds. My lab is due tomorrow and i have a quiz on Wed. If anyone can help me understand this better i would be greatful. Thank-you.

*Monday, January 4, 2010 by Michele*

**Maths**

An Investment Fund manager is required to maximise the return on a portfolio of bonds given the following information: Bond types Projected rate of return Benchmark government 9.1 UK gilts 10.3 Global investment grade (US $) 6.7 Global investment grade (euro) 8.7 Global ...

*Tuesday, December 8, 2009 by Sarah*

**8th grade**

im in advanced math so i do 8th grade math and i don't understand how too gragh the fractions in equations like y=2/3x+1

*Sunday, November 29, 2009 by jazmine*

**Science**

I am in 6th grade and doing very well so i am not stupid or anything but i don't know if my science fair project is for my grade level. It's What Makes Ice Melt The Fastest. What Do You Think? Thnak You

*Monday, November 16, 2009 by Ella*

**Math**

Find the center and ardius of the circle (x-1)2nd power+y2nd power=36

*Sunday, November 15, 2009 by Johnnie*

**math/ college algebra**

what is the root of 4x to the 4th power + 8x to the 3rd power - 13x to the 2nd power -2x +3

*Tuesday, November 10, 2009 by Veronica*