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February 28, 2015

February 28, 2015

Post a New Question | Current Questions

**Algebra **

In a class of 110 students, 22 received the grade of A. what fraction of the students did not receive the grade A?
*Wednesday, August 31, 2011 at 12:16am*

**algebra**

Solve the quadratic equation 2x to the 2nd power -3x-2=0using the quadratic formula. Read the information in the assignment list to learn more about how to type math symbols in MS Word, such as the square root.
*Saturday, August 27, 2011 at 5:49pm*

**math**

a student is selected at is the probability the the randomly selected stundent is neither a 10th grade nor an 11th grade express your answer in fraction in simplest form
*Thursday, August 25, 2011 at 5:47pm*

**Algebra**

a 260 m wire is cut into 3 pieces. The second is 4 times longer than the 1st. The third is 2 times longer than the 2nd how long is each piece=
*Thursday, August 11, 2011 at 6:31pm*

**English**

What is the role of homework in learning 2nd language?
*Thursday, August 11, 2011 at 4:10pm*

**Math**

18 people enter a race, if there are no ties, how many ways can 1st, 2nd and 3rd place result?
*Saturday, July 9, 2011 at 5:00pm*

**10th Grade Chemistry**

I struggle in the sciences and was wondering what I could do over the summer self studying wise to prepare for 10th grade chem?
*Thursday, July 7, 2011 at 7:00pm*

**MATHA**

HOW TO WRITE 2ND JULY 2011 IN 5 LETTERS WITHOUT USING NUMBERS
*Sunday, July 3, 2011 at 4:35pm*

**English**

Could you please check this sentence for me? I am interested in student writing exchanges but my students are in first grade. How old are first-grade students? (This is a real question)
*Thursday, June 23, 2011 at 4:49am*

**social studies**

how do we write 2nd june 2011 in five letters without using a number?
*Thursday, June 2, 2011 at 11:04am*

**maths**

How do U write 2nd june 2011 in 5 letters without using numbers...
*Thursday, June 2, 2011 at 1:39am*

**math**

if i had a 66 in bim and my teacher puts a 100 in the grade book what will be mi grade
*Monday, May 30, 2011 at 9:03pm*

**science**

What is a simple definition for the 2nd law of Thermodynamics?
*Wednesday, May 25, 2011 at 6:25pm*

**Good Reads? 6th and 7th grade**

Please. I need a list of Non-fiction books recommended for 6th and 7th grade readers. Thank you and have a nice day. God bless! <3
*Tuesday, May 24, 2011 at 7:28pm*

**8th grade science**

What is the reprodution in bacteria, prokaryotic cells, called? A. Mitosis, B. Binary fission, C. Interphase, or D. Fusion. Thank you for helping! I need this because it's for my 9 weeks exam study guide which counts for a whole lot of my grade. Thanks!
*Tuesday, May 24, 2011 at 4:27pm*

**Physical Science 2nd Semester**

A student lifts a backpack with a force of 50 Newtons. She lifts the backpack 2 meters off the floor. Calculate the work that she has done.
*Tuesday, May 24, 2011 at 2:53pm*

**maths**

my daughter studying in 2nd standard this is the project work i dont understand, please show me the answer. make a chart to represent nos 1-15 using small objets
*Wednesday, May 18, 2011 at 4:16am*

**statistics**

what the error is: a) Grade Percent Frequency A 20% B 45% C 30% D 10% F 5% (b) The following table summarizes the grade breakdown on an exam in a small statistics class with 10 students. Grade Percent Frequency A 30% B 35% C 15% D 20% F 0%
*Monday, May 9, 2011 at 2:57pm*

**statistics**

After years of data collection by college students, it has been determined that the distribution of course grades in Ms. Green’s Statistic II class follows a normal distribution with a mean of 62 and a standard deviation of 14. (a) A student will pass Ms. Green’s ...
*Monday, May 9, 2011 at 11:19am*

**Chemistry**

What mass of NaCl can be dissolved in 7.50 X 10 (to the 2nd)grams of water at 25 degrees C?
*Tuesday, May 3, 2011 at 7:41pm*

**Physical Science**

Hi... well anyways so I am in 7th grade but I'm taking 8th grade science...I think...I know for sure that I am in Accelerated 7th grade science so if that helps at all, there you go:) Back to the subject I'm really confused with acceleration calculation and velocity, ...
*Monday, May 2, 2011 at 7:55pm*

**maths**

how to write 2nd may 2011 in 5 letters without using numbers?
*Monday, May 2, 2011 at 1:13am*

**general knowledge**

how to write 2nd may 2011 in 5 letters without using numbers?
*Monday, May 2, 2011 at 1:13am*

**PHYSICAL SCIENCE**

compute the freezing point of 21.6 g CuSO4 in 1.00 x10 to the 2nd power gH2O
*Saturday, April 30, 2011 at 8:44pm*

**math**

whats 16-4+1 to the 2nd power i wish i was smart
*Wednesday, April 27, 2011 at 6:47pm*

**World history**

What was the foreign policy of William the 2nd?
*Wednesday, April 6, 2011 at 9:04pm*

**World history**

what was the foreign policy of william the 2nd
*Wednesday, April 6, 2011 at 7:02pm*

**math**

Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.
*Wednesday, March 23, 2011 at 6:05pm*

**math**

Use a tangent function to estimate the grade resistance of a 2200-lb car travelling on a 2.4° grade. Round your answer to the nearest pound.
*Wednesday, March 23, 2011 at 6:05pm*

**double integral**

1. Sketch the region of integration & reverse the order of integration. Double integral y dydz... 1st (top=1, bottom =0)... 2nd(inner) integral (top=cos(piex), bottom=(x-2)... 2. Evaluate the integral by reversing the order of integration. double integral sqrt(2+x^3) dxdy... ...
*Friday, March 11, 2011 at 12:13am*

**Science**

The skydiver has fries and a milk shake. Whay is he so nervous? Because he is???????? 4 words total.. The 1st and 2nd are 2 letters. The 3rd and 4th are 3 letters. Using these letters to solve UTAHNIIEUR
*Monday, March 7, 2011 at 9:14pm*

**Chemistry**

(A) is a solution of hcl (b)is a solution of koh titrate against b8 record your titre values as follows burretreading|rough|1stread|2ndread|3rdread/finalrding under rough|33.50|un der 1s rd |33.50|under 2nd rd |33.60| under3rd rd|33.70 intial rding under rough|0.00| 1st...
*Wednesday, March 2, 2011 at 5:48pm*

**6th grade science**

What are Newton's three laws on motion in sixth grade lingo?
*Tuesday, February 22, 2011 at 9:47pm*

**Physics**

I'm trying to help my 7th grader with homework and I don't know this stuff. How do you figure word problems based on newton's 2nd law. one problem is: What is the acceleration of a ball if a force of 20N is applied to the 8kg ball?
*Monday, February 21, 2011 at 9:16pm*

**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 at 7:35am*

**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 at 3:39pm*

**Ecology**

Estimate the fish population of Lake Champlain using the Lincoln-Peterson Method. -Number of fish of 1st capture: 60 -Number of fish of 2nd capture: 65 Marked fish in 2nd capture: 10 -Number of fish of 3rd capture: 65 Marked fish in 3rd capture: 15 -Number of fish of 4th ...
*Wednesday, February 16, 2011 at 9:18am*

**pre- algebra**

solve and simplify 6 to the 4th power * 6 to the 2nd power
*Thursday, February 10, 2011 at 9:57pm*

**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 at 4:07pm*

**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 at 1:54am*

**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 at 8:26pm*

**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 at 4:54pm*

**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 at 7:43pm*

**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 at 3:21pm*

**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 at 6:34pm*

**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 at 10:42pm*

**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 at 7:01pm*

**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 at 9:10am*

**college**

4y to the 5th power 81q to the 7th power ________________ X ___________________ 9q to the 2nd power 16y .
*Monday, December 13, 2010 at 9:04am*

**Pre Calc**

f(x,y)=ln(5x^2-7y^3) Find ALL 2nd derivatives. fxx,fxy,fyx,fyy
*Friday, December 10, 2010 at 5:22pm*

**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 at 12:42pm*

**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 at 5:22pm*

**6th grade**

Of the sixth-grade students surveyed, 12% bring their lunches to school. Suppose 24 sixth-graders do this? How many sixth-grade are at the school?
*Wednesday, December 1, 2010 at 11:56pm*

**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 at 7:38pm*

**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 at 1:17pm*

**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 at 10:13am*

**Statistics/2nd post**

How is the p-value of a hypothesis test related to type I and type II error?
*Sunday, November 21, 2010 at 10:49pm*

**5th grade**

what are the answers to the 5th grade unit 1 test harcourt
*Friday, November 19, 2010 at 5:49pm*

**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 at 2:21pm*

**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 at 11:18pm*

**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 at 10:20pm*

**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 at 3:33pm*

**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 at 12:59pm*

**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 at 6:32pm*

**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 at 5:10am*

**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 at 9:52am*

**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 at 5:29pm*

**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 at 3:41am*

**english grade 1**

how to teach interrogative and relative pronoun to grade 1 students
*Sunday, October 10, 2010 at 6:46am*

**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 at 8:54pm*

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

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 at 6:55pm*

**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 at 10:00pm*

**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 at 12:25pm*

**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 at 12:23pm*

**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 at 5:44pm*

**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 at 9:06pm*

**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 at 10:21pm*

**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 at 10:54pm*

**algebra**

how do you make a small 2 if if you were going to write to the 2nd power?
*Saturday, September 11, 2010 at 12:37pm*

**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 at 6:16pm*

**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 at 1:01pm*

**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 at 6:27pm*

**latin**

how do you do this? 2nd person, future perfect, plural of augeo, augere, auxi, auctus?
*Thursday, August 12, 2010 at 10:25pm*

**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 at 5:12pm*

**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 at 10:39pm*

**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 at 10:59pm*

**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 at 8:33pm*

**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 at 6:12pm*

** 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 at 7:20pm*

**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 at 8:38pm*

**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 at 9:41pm*

**chemistry**

calculate the percent composition or w/v% of 3x10 to the 2nd power mL solution containing 15g of glucose
*Tuesday, May 4, 2010 at 8:22pm*

**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 at 8:15pm*

**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 at 7:56pm*

**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 at 4:50pm*

**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 at 6:10pm*

**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 at 6:08pm*

**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 at 10:34am*

**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 at 9:55pm*

**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 at 9:05pm*

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