Thursday

August 27, 2015
Total # Posts: 797

**Math Quadratic Equations**

Select the approximate values of x that are solutions to f(x) = 0, where f(x) = -3x2 + 6x + 9
*September 8, 2013*

**andover leke**

janna wrote this number 413,900 what is the valu of the digit in the ten thousands plase? 400,000 40,000 10,000 3,000
*September 4, 2013*

**andover leke**

janna wrote this number 413,900 what is the valu of the digit in the ten thousands plase?
*September 4, 2013*

**science**

how many molecules of oxygen are produced from the balanced equation 2kclo3=2kcl+3o2
*June 13, 2013*

**Literature**

L.T Morrison~The Gentle Giant Use the heading and write Mr L.T Morrison's story basing your writing on the descriptions of him and the things he does in the novel(Roll of Thunder, Hear My Cry).
*June 10, 2013*

**english**

In the story a man called horse what does horse discover about himself and others in his years with the crows
*May 20, 2013*

**chemistry**

A sample of an ideal gas has a volume of 2.29 L at 2.90 × 102 K and 1.08 atm. Calculate the pressure when the volume is 1.57 L and the temperature is 302 K.
*May 7, 2013*

**MATH**

A STUDENT COUNCIL COMMITTEE IS MADE UP OF 4 BOYS AND 5 GIRLS.IF 2 COMMITTEE MEMBERS ARE CHOSEN AT RANDOM TO ATTEND A CONFERENCE,WHAT IS THE PROBABILITY THAT BOTH MEMBERS WILL BE BOYS?
*May 5, 2013*

**English**

Thank you, that is what was confusing me.
*April 16, 2013*

**JAVA PRoblem**

use an if statement with ascii key codes. like if you want the values to just be numbers, you look up the range that are just numbers and convert the user input into ascii and if it is not in the range that is allowed then dont add it to the array.
*April 14, 2013*

**Chemistry**

Thanks!
*April 14, 2013*

**Chemistry**

What is the hydronium ion concentration in a solution 0.150M in HNO2 and 0.300M in NaNO2? Ka = 7.24E-4
*April 14, 2013*

**Java programming**

Oh, all the doubles have to be lower case.
*April 14, 2013*

**Java programming**

double[] score = {8, 7, 8.5, 9.5, 7, 5, 10}; Double min = 10; //the highest possible score is 10 Double total = 0; for(int i = 0; i < score.length; i++) { total += score[i]; if(score[i] < min) { min = score[i]; } } total -= min; System.out.println("Total = " + ...
*April 14, 2013*

**Algebra.. PLEASE help me!!**

Part A) Possible Outcomes: Heads and Red Ball Heads and Blue Ball Heads and Green Ball Tails and Red Ball Tails and Blue Ball Tails and Green Ball There are only 2 possible outcomes from the coin either heads or tails. There are three possible outcomes from drawing the 3 ...
*April 11, 2013*

**math**

1) 25 1/5x = 5 x = 5*5 x = 25 2)18 It states that when it is multiplied by 2 it is between 20 and 40 so divide both 20 and 40 by 2 and that shows that your range of numbers is between 10 and 20. 18*2 = 36 between 20 and 40 18*6 = 108 18 * 4 = 72
*April 11, 2013*

**Physics**

Thank you!
*April 11, 2013*

**Physics**

4. What does the slope of each of the following graphs stand for? (y versus x) a) mass vs volume b) velocity vs time c) mass vs force d) kinetic energy vs frequency e) sine incident angle vs sine refracted angle f) charge vs voltage g) voltage vs current h) force vs area
*April 11, 2013*

**math**

The average time is equal to the sum of the components divided by the number of components. (45 min + 50 min + 36 min + 70 min + 49 min)/5 days= average (250 min)/5 days = 50 min per day
*April 11, 2013*

**Chemistry**

Which is the more concentrated solution: a solution made with .70 moles of NaCl in a .35L water or a 35g of NaCl in .75L?
*April 8, 2013*

**pre calculus**

what do you mean when you say, "the appropriate function?" what function are you referring to?
*April 2, 2013*

**pre calculus**

1.)A utility company has the following rate schedule for natural gas usage in a city’s business district: Monthly service charge: $8.80 Per therm service charge 1st 25 therms : $0.6686/therm Over 25 therms: $0.85870/therm (a) What is the charge for using 25 therms in one ...
*April 2, 2013*

**fgcu**

More than a decade ago, high levels of lead in the blood put 88% of children at risk. A concerted effort was made to remove lead from the environment. Now, suppose only 12% of children in the United States are at risk of high blood-lead levels. (a) In a random sample of 194 ...
*March 27, 2013*

**physics**

A water tower is 100m tall and has a diameter of 0.77 cm^3, what is the velocity of the water?
*March 26, 2013*

**MATH**

BRYCE HAS 24 BASEBALL TROPHES. MATT HAS 3/4 AS MANY TROPHIES AS BRYCE. HOW MANY TROPHIES DOES MATT HAVE?
*March 24, 2013*

**MATH**

ESTIMATION. WHICH IS THE BEST ESTIMATE FOR THE AREA OF A SQUARE WITH SIDES EQUAL TO 4 1/8 INCHES?
*March 24, 2013*

**MATH**

WHICH BENCHMARK FRACTION COULD YOU USE TO ESTIMATE THE PRODUCE OF 36 X 11/16?
*March 24, 2013*

**MATH**

JENNA LIVES 4 3/10 MILES FROM SCHOOL. SHE ESTIMATES THAT SHE TRAVELS 4 X 2 X 5, OR 40 MILES EACH WEEK. IS HER ESTIMATE AN OVERESTIMATE OR AN UNDERESTIMATE? EXPLAIN.
*March 24, 2013*

**MATH**

SHOW THREE WAYS TO ESTIMATE 3/5 X 9 1/2. IDENTIFY EACH METHOD YOU USE.
*March 24, 2013*

**4th grade math**

The answer is simple but you have to find it out your self
*March 19, 2013*

**AP Physics B**

Got the answer, 36.5 cm
*March 15, 2013*

**AP Physics B**

An object is 21 cm in front of a diverging lens that has a focal length of -10 cm. How far in front of the lens should the object be placed so that the size of its image is reduced by a factor of 1.5?
*March 15, 2013*

**Chemistry**

Someone please answer this. Please! :)
*March 3, 2013*

**Science**

What did Oprah Winfrey do for 152 exceptional girls in South Africa? C How does Winfrey describe her relationship with the girls who attend the school? A How did Winfrey show that the opening ceremony was an important celebration? I don't really know, so, pick D.
*February 23, 2013*

**General Chemistry**

When calcium carbonate is added to hydrochloric acid, calcium chloride, carbon dioxide, and water are produced. CaCO3(s)+2HCl(aq)--> CaCl2(aq)+H2O (l)+CO2(g) How many grams of calcium chloride will be produced when 32.0 g of calcium carbonate are combined with 11.0 g of ...
*February 6, 2013*

**chemistry**

An object has a KE= 18000 and a massof 98kg what is the speed of the object
*February 3, 2013*

**science**

If I put a note card with words on it behind a jar of water why does part of the note card little different from the rest of the note card?
*January 30, 2013*

**Math Word problem !**

I have one more question ... How did you get 1,200 ?
*January 29, 2013*

**Math Word problem !**

Sarah works in an appliance store. She gets a commission in addition to her hourly pay. She earns a 2% commission for sales up to $4000 and a 4% commission for all sales in a month above $4000. Last month her sales were $5200. How much was her commission?
*January 29, 2013*

**Math**

Sustem of equations. I have to solve the system of equations by graphing and solving. Ther are thirty-three students in the Chess Club. There are five more boys than girls in the club. Write and solve a system of equations to find the number of boys and girls in the chess club.
*January 29, 2013*

**Physics**

A 1200kg car accelreates from 0mph-60mph in 8.5 seconds. Calculate the force needed to accelerate teh vehicle.
*January 28, 2013*

**english**

What is a example of a understatement in the cask of amontillado.? Is one "my heart grew sick, it was the dampness of the catacombs that made it so" a understantment in this story? PLEASEE HELP ASAP!!
*January 28, 2013*

**accounting**

The accounting records of NuTronics, Inc., include the following information for the year ended December 31, 2011. Dec. 31 Jan. 1 Inventory of materials $ 24,000 $ 20,000 Inventory of work in process 8,000 12,000 Inventory of finished goods 90,000 80,000 Direct materials used ...
*January 22, 2013*

**accounting**

The Bags and Luggage Company had the following account balances as of January 1: Direct Materials Inventory $ 8,700 Work in Process Inventory 76,500 Finished Goods Inventory 53,000 Manufacturing Overhead - 0 - During the month of January, all of the following occurred: 1. ...
*January 22, 2013*

**chemistry**

What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?
*December 21, 2012*

**intergrated topics/math**

thanks
*December 20, 2012*

**intergrated topics/math**

so i would times and then divide and that would be my answer
*December 20, 2012*

**intergrated topics/math**

ab/c
*December 20, 2012*

**intergrated topics/math**

evaluate the following expression of a=3, b=10, and c=6
*December 20, 2012*

**Math**

Reducing fractions how can I figure out the reduced fraction for 20/10?
*December 13, 2012*

**Biology **

List two ways that these single - celled fungi are different from bac-terial cells?
*December 13, 2012*

**Chemistry**

A mixture of gases contains 2.00 mol of O2, 3.00 mol of N2, and 5.00 mol of He. The total pressure of the mixture is 850 torr. What is the partial pressure of each gas?
*December 10, 2012*

**English**

I need to make a thesis that uses stranger in a strange land and its backed up by the Handmaids tale. Like I could talk about how religion causes oppression in stranger in a strange land and the handmaids tale. Right now im trying to use this thesis:Robert A. Heinlein and ...
*December 7, 2012*

**algebra**

the formula d=(square root)12,800+h^2 gives the distance d in kilometers to the horizon from a satellite h kilometers above Earth.Find the distance to the horizon to the horizon from a satellite 4200 km above Earth. Round to the nearest kilometer. PLEASE HELP ME
*December 6, 2012*

**AP Physics B**

Thank You So Much!
*November 29, 2012*

**AP Physics B**

A 63.6-kg bungee jumper is standing on a tall platform (h0 = 50.6 m). The bungee cord has an unstrained length of L0 = 9.54 m and, when stretched, behaves like an ideal spring with a spring constant of k = 67.8 N/m. The jumper falls from rest, and it is assumed that the only ...
*November 29, 2012*

**psycholoogy**

Behavioral geneticists and evolutionary psychologists emphasize
*November 18, 2012*

**Maths**

Find the derivatives of these: f(x)=(√(x))sinPix Also: f(x)=√(Cosx+sinx) Steps would be greatly helpful as I will be able to use them as reference. Thank you.
*November 13, 2012*

**Maths**

Find the derivatives of these: f(x)=√
*November 13, 2012*

**physics**

A 75.0 kg stunt man jumps from a balcony and falls 28.0 m before colliding with a pile of mattresses. If the mattresses are compressed 0.800 m before he is brought to rest, what is the average force exerted by the mattresses on the stuntman?
*November 11, 2012*

**7th grade social studies help please**

Idk Could u help me 2 figure out
*November 8, 2012*

**Social Studies 8R - Paragraph Check**

please check my my essay okayyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyyy please let me know if there are any wrong let me know
*November 8, 2012*

**Physics**

If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do not reflect negative ...
*November 7, 2012*

**physics URGENT! HELP**

If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do not reflect negative ...
*November 7, 2012*

**physics**

If an object is thrown in an upward direction from the top of a building 1.60 x 102 ft. high at an initial velocity of 21.82 mi/h, what is its final velocity when it hits the ground? (Disregard wind resistance. Round answer to nearest whole number and do not reflect negative ...
*November 7, 2012*

**AP Physics**

A 1200 kg car is moving at 33 m/s then has the brakes applied at a deceleration of 6.1 m/s. How far will it move before stopping?
*October 29, 2012*

**Chemistry**

Write a blanaced molecular equation for the reaction 2Na(NO3) + Cu(OH)2. Write complete ionic and net ionic equations?
*October 29, 2012*

**Chemis**

Write a blanaced molecular equation for the reaction 2Na(NO3) + Cu(OH)2. Write complete ionic and net ionic equations?
*October 29, 2012*

**English singluar and plural possessive nouns**

What are some rhyming plural possessive words?
*October 25, 2012*

**2nd grade math**

write the sum.Show the ten-ten-fact you used. 9+7=16 /\ 1 6 10+__=? is it 10+6=16
*October 24, 2012*

**General Chem**

Nitrogen oxide reacts with oxygen gas to form nitrogen dioxide (NO2). In one experiment 0.866 mole of NO is mixed with 0.503 mole of O2. Calculate the number of moles of NO2 produced
*October 12, 2012*

**Math**

What is 71 times 65 in ladder form
*October 7, 2012*

**chemistry**

what is the height of the ethyl alcohol that exactly fills a 200.0mL container? the density of ethyl alcohol is 0.789/mL
*October 1, 2012*

**Science**

A hydraulic lift office chair has its seat attached to a piston with an area of 11.2 cm2 . The chair is raised by exerting force on another piston, with an area of 4.12 cm2 . If a person sitting on the chair exerts a downward force of 219 N, what force needs to be exerted on ...
*September 29, 2012*

**Math**

Sophia has $1.00 in coins. 1/5 is dimes. 2/15 are nickels. 2/3 are pennies. How many of each coin does she have?
*September 26, 2012*

**sta luces**

graph -20x-45y=48
*September 18, 2012*

**Math**

All the numbers from 1 to 99 are multiplied together. What is the last digit of the product?
*September 17, 2012*

**chemistry**

jason needs to use 63.5 grams of alcohol that has a denisty of .818 g/ml. How many millilters of the alcohol would jason need?. show work please
*September 17, 2012*

**physics**

An airplane with a speed of 88.0 m/s is climbing upward at an angle of 72.1 ° with respect to the horizontal. When the plane's altitude is 779 m, the pilot releases a package. (a) Calculate the distance along the ground, measured from a point directly beneath the point...
*September 15, 2012*

**Math**

Thank you (:
*September 11, 2012*

**Math**

Can you place least to greates ; these numbers 5/6, 0.85, 0.9
*September 11, 2012*

**Science**

stomata is what makes gases it is found on a tree and leaf
*September 10, 2012*

**physics**

356 barrels
*September 8, 2012*

**algebra**

what is 1=2n
*September 5, 2012*

**math**

Find all the possible rational roots of f(x)= 4x^4 - 3x^3 +2x^2 + x -3 f(x) = -3x^3 - 2x^2 + x -1 Thank you so much:)
*September 5, 2012*

**Math, Pre Calc**

Thanks!
*September 5, 2012*

**algebra**

2x^3+7x^2-18x-63
*September 3, 2012*

**math**

54x^5-16x^2
*September 3, 2012*

**math**

2x^3+7x^3-18x-63
*September 3, 2012*

**Chemistry**

Write the net ionic equation for the reaction between sodium chloride and cobalt (ll) nitrate. so far i have... 2NaCl(aq)+ Co(NO3)2(aq)---> NaNO3(aq)+CoCl2(s)
*August 27, 2012*

**math**

65/6.5 equal
*August 27, 2012*

**health**

yes u r right
*August 13, 2012*

**Math **

Christine runs 3 miles in 25 minutes. At the same rate, how many miles would she run in 85 minutes?
*July 31, 2012*

**reading**

Due to his ______ habits, he had a ______ for berating his friends in an effort to bolster his own reputation.
*July 29, 2012*

**geometry **

Find the surface area of a rectangular prism with a height of 11, a length of 15, and a width of 10.
*July 17, 2012*

**pre algebra**

3 1/4 - (3 - 1 5/6) =
*April 30, 2012*

**MATH**

rowan raised $640 in a charity walk last year. This year he raised 15% more than he raised last year. How much money did rowan raise this year? SHOW YOUR WORK.PLEASE HELP ME
*April 25, 2012*

**World History**

Where did freedom come from?
*April 12, 2012*

**Chemistry**

Aluminum sulfate and calcium acetate = ?
*March 29, 2012*

**Chemistry**

how do you show the synthesis of copper (1) chloride?
*March 29, 2012*