Tuesday

October 21, 2014

October 21, 2014

Total # Posts: 176

**Math**

I do not understand how 245+/-sqrt[(-245)^2-4(48)(-150)] equals 245+/-5sqrt(3553) which equals 543?
*October 18, 2014*

**Math**

I replied to your answer with another question.
*October 18, 2014*

**Math**

Several cows from a Caribou Herd took 4 days longer to travel 70km to Forde Lake, than it took them to travel 60km north beyond forde lake.They averaged 5km/h less before Forde lake because the foraging was better. What was their average speed for the part beyond forde lake?
*October 18, 2014*

**Math**

Aha sorry, I got it now! But why did we use the positive and not the negative?
*October 18, 2014*

**Math**

did u go 245-5 or 245+5? How did 3553 come out?
*October 18, 2014*

**Math**

ok awesome, but I dont understand how u got 543 from 245+5sqrt(3553)- cant seem to get a whole number
*October 18, 2014*

**Math**

wait hold on, is it like the equation x=[-b+/- sqrt(b^2-4ac)]/2a ? Thanks so much for the help Damon!
*October 18, 2014*

**Math**

I don't understand what s = (1/96)(245 +/- 5 sqrt(3553) ) means. like is the +/- the plu/minus sign? How does 245+/-5 square root of 3553 equal 543?
*October 18, 2014*

**Math**

Several cows from a Caribou Herd took 4 days longer to travel 70km to Forde Lake, than it took them to travel 60km north beyond forde lake.They averaged 5km/h less before Forde lake because the foraging was better. What was their average speed for the part beyond forde lake? ...
*October 18, 2014*

**math**

I do not know how to solve this, but I think it has something to do with factorials (x!)
*October 18, 2014*

**Science**

1. The process of nitrogen fixation uses oxygen to produce carbon dioxide- false? 2. While a pyramid of numbers or biomass can be inverted, a pyramid of energy cannot- false? are my answers correct?
*October 2, 2014*

**Chem**

What is the maximum mass of H2O that can be produced by combining 85.0 g of each reactant?
*September 21, 2014*

**Math**

I have 3 questions: 1) If ABC and DEF are three- digit numbers, which of the following could be the number of digits in the product of ABC and DEF? i. 4 ii. 5 iii. 6 I don't have the vaguest idea on how to do this and what type of math it is part of... My answer is 6 only ...
*July 8, 2014*

**Inequalities & Absolute value**

Yes I got -4/3 with 5-3x<9 and 14/3 with 5-3x>-9. And then same goes for 1/2 with ...<5 and -9/2 with ....>-5. I just don't get why you used -4/3<x<1/2?
*July 2, 2014*

**Inequalities & Absolute value**

|2x+4|<5 |5-3x|<9 What values of x are both of the inequalities above true? i. -2 ii. -1 iii. 1 I got -1 only and its right because I just plugged it in to find out, but is there another way of solving this perhaps algebraically? For example something like 2x+4<5 and...
*July 2, 2014*

**Math**

Ok, thank you!
*July 2, 2014*

**Math**

The sum of integrs from 40-60, inclusive, is 1050. What is the aum of the integers from 60-80, inclusive? I figured out the answer by adding them with a calculator but i was wondering if there was an algebraic way of solving this?
*July 2, 2014*

**Pre alegabra**

5/26 or around 19%
*June 3, 2014*

**Algebra 1**

so 4 cups
*June 2, 2014*

**Algebra 1**

3.2 cups
*June 2, 2014*

**Math**

ac^2-a^3-a^2b+ab^2+b^2-bc^2 I don't understand how to factor it.
*May 20, 2014*

**Math**

Two ships left the same port at the same time. One travelled at 16kn/h on a course of 275 degrees while the other at 20 km/h of 225 degrees. How far apart are the ships after a. 2 hours? b. 4 hours? *note: this is a trigonometry question using the cosine law. Thanks!
*March 18, 2014*

**English Project**

Yes, I got the other question! But I don't know what kind of advertisements would be authentic enough to be included?
*March 11, 2014*

**English Project**

This is a final project In accordance to the book In the Heat of the NGht by John Ball. -must create a newspaper that contains an article basically stating the murder mystery in the book, 2 ads and another article irrelevant to the story that depicts the theme of prejudice. I ...
*March 11, 2014*

**English**

What is the significance of the title "In the heat of the night"? What does the last chapter(chapter 14) conclude about the underlying racial issue; the furtherance of the romantic plot?
*March 11, 2014*

**maths**

hint: find the common denominator
*March 1, 2014*

**English**

We are reading the book In the Heat of the Night by John Ball and I need to complete the chapter 2 comprehension questions. I am stuck on this one: 1. Investigate the figurative nuances of the name Virgil. It is an allusion. Why is it significant? Think in terms of irony and ...
*March 1, 2014*

**Math**

oooohh ok that makes sense! thanks!!
*January 28, 2014*

**Math**

2 Gears are in their starting position. Gear 1 has 6 teeth. Gear 2 has 8 teeth. As gear 1 turns, it causes gear 2 to turn at a different rate. Gear 1 is rotated until the two gears are back at starting position. What is the minimum number of rotations Gear 1 requires to return...
*January 28, 2014*

**Math Help Qucik!**

wait... isnt gross the revenue? lol sorry if thats a dumb query
*January 25, 2014*

**Math Help Qucik!**

ok, thank you! But i don't understand why you need to find the gross?
*January 25, 2014*

**Math Help Qucik!**

Alex bought 144 bagels for $80. His profit was $75 once he had sold 100 bagels. Which equation represents Alex's profit,P as a function of the number sold, n?
*January 25, 2014*

**Socials HELP QUICK!**

WHat are the advantages of pit houses for the Plateaus peoples?
*January 13, 2014*

**Socials Ms. Sue please help!**

Is the longhouse the best lodging choice for the people of the Plateaus? -they had forestry: adequate supply of wood - large flat land - nomadic during the summer not sure about winter Wold tipis be a better choice? Is it ok if a link isn't provided this time? I have tried...
*January 13, 2014*

**Math, area**

Well since its an oval, just subtract the bigger/outer oval from the inner/smaller oval to get the area of the track I think. Area of oval = Pi * A * B; where A is the length from the center to the longer side of the the oval and B is the length from the center to the opposing...
*January 12, 2014*

**Math, area**

What shape is the track?
*January 12, 2014*

**Math, area**

Same way you would find the surface area of a cylinder? I'm not sure if I'm correct.
*January 12, 2014*

**Science**

C. I think so, not 100% sure
*January 12, 2014*

**Math**

((2h+8)*h)/2
*January 12, 2014*

**Socials Please help!**

Please help me Ms. Sue!!
*January 12, 2014*

**Socials Please help!**

Thank you! But I'm not sure if I am right or not... Which type would you choose?
*January 12, 2014*

**Socials Please help!**

I need to write an essay response answering these 2 questions: 1. Are pit houses really the most efficient/ practical houses for the Plateau people? My ans: No, it isn't 2.Which lodging would be the best for the Plateau regions and why? (at least 4 reasons) I am stuck on ...
*January 12, 2014*

**Socials**

What were the poor laws? What was their purpose and what did they set out to do? my answer for the first part: - The poor laws was a law regulating the public relief or support of the poor. Its purpose was...?
*November 24, 2013*

**Socials**

Thank you Ms. Sue!
*November 24, 2013*

**Socials**

Down and Out in Victorian London from Oliver Twist by Charles Dickens questions I don't understand. 1. What is a parish? (not in religious content) 2. How did social values affect the treatment of the poor? 3. What were "workhouses" and how did they operate?
*November 24, 2013*

**Math **

Bethany has 43 apples. Write a subtraction story about the apples That would require regrouping. Then write the answer in a complete sentence.
*October 29, 2013*

**Business(please help quick!)**

Please don't provide any links. We are doing a project where we pick a sports team and we must calculate the revenue and salaries of the players. Then we are asked to explain how a sports team can possibly lose money. Now, I have all of that but I am stuck on this last ...
*October 16, 2013*

**Algebra**

x-original price (0.15x)0.10=91.80 solve for x :)
*October 9, 2013*

**Social studies**

Was Robespierre a hero or villain? What were some of the things he did (good and bad). Im writing a multi- paragraph essay and I don't really get who he is and what he did. (Ms. Sue;)
*October 8, 2013*

**socials**

An extension to my other question- how did oliver cromwell like impact the world and why was he significant? It could relate to if he had high moral principles. I wrote my essay but I don't know how to close it up.
*September 21, 2013*

**Social studies**

ok, thank you! But I just read over my criteria and it said that I must include whether he was a person of high moral principles or not and what they were...
*September 20, 2013*

**Social studies**

What were some of the good things Oliver Cromwell did? Bad things? And also what is you opinion on whether he was a hero or villain? I think I am choosing to write about him being a hero because I guess every ruler has it's flairs and flaws, but I just don't know what ...
*September 20, 2013*

**pre calc**

Carson wants to invest $100,000 in two ways. He wants to purchase a certificate of deposit that pays 11% per year and invest the rest in coorporate bonds that pay 15% per year. He is looking for a total return of 12%. How much money should Carson place into each investment ...
*September 19, 2013*

**pre calc**

An open box is formedby cutting squares out of a peice of cardboard that is 18 feet by 26 feet and folding up the flaps. What size corner squares should be cut to yield a box that has a volume of 250 cubic feet
*September 19, 2013*

**english**

* i meant(typo) what does the last line mean?*
*February 20, 2013*

**english**

In the short story The Weapon by Fredric Brown, why did Dr. Graham says as his reason for continuing to work on the weapon, despite the fact that it is bad for the world? Also, what does the last line of the story "only a madman “Only a madman would give a loaded ...
*February 20, 2013*

**social studies**

o and would the arousing of travel count as well?
*January 21, 2013*

**social studies**

o ok! but for new knowledge what kind of knowledge?
*January 21, 2013*

**social studies**

Whatsocial changes came as a result of increased trade? - I already have a few like towns, new powers, new freedoms, and weakening of feuldalism. Is there anything else I missed?
*January 21, 2013*

**social studies**

thank you so much Ms. Sue!
*January 21, 2013*

**social studies**

what are craft guilds similar to today?
*January 21, 2013*

**social studies**

thank u! :)
*January 21, 2013*

**social studies**

In what ways are a KNights code of chivalry similar to an oath of allegience?
*January 21, 2013*

**Math**

A 100m wire weighs 1.75kg. How wide is the wire?
*January 12, 2013*

**science**

What is the acceleration of a 66 kg block of cement when pulled sideways with a net force of 597 N? Answer in units of m/s 2.
*December 16, 2012*

**Physics**

The change in L = (Initial L)x(Force)/E/Area. The change in L also = (Alpha)x(Initial L)x(Change in Temperature) So, (Alpha)x(Change in Temperature)x(E) = Force/Area So, (25x10^-6)x(23)x(70x10^9) = 4.0x10^7 N/m^2
*November 14, 2012*

**Math**

But if some students enjoy than one sport how does that go to do with anything? Can you please help me I really need help?
*October 20, 2012*

**Math**

The following chart shows the fraction of students who enjoy baseball, basketball, football, soccer, and swimming in the 7th grade. Baseball - 2/3 Basketball- 4/5 Football- 3/10 Soccer-5/6 Swimming-1/8 What fraction of students enjoys basketball and soccer?
*October 20, 2012*

**physics**

A ball with a mass of 4·kg is moving in a vertical circle at the end of a 0.9·m long rope. When the ball is at the top of the circle, it is going 7·m/s. What is the tension in the rope? (Again...don't need the answer...just the formula on how to find ...
*July 24, 2012*

**physics**

A 1100·kg elevator is attached to a cable whose tension is 11100·N. What is the magnitude of the elevator's acceleration?
*July 24, 2012*

**physics**

A ball with a mass of 4·kg is moving in a vertical circle at the end of a 0.9·m long rope. When the ball is at the top of the circle, it is going 7·m/s. What is the tension in the rope? (Again...don't need the answer...just the formula on how to find ...
*July 24, 2012*

**College Physics**

A ball with a mass of 4·kg is moving in a vertical circle at the end of a 0.9·m long rope. When the ball is at the top of the circle, it is going 7·m/s. What is the tension in the rope? (Again...don't need the answer...just the formula on how to find ...
*July 8, 2012*

**help please :)**

It's not A
*June 20, 2012*

**algebra**

Which of the quadratic functions has the narrowest graph? A. y=1/4x^2 B.y=x^2 C. y=-3x^2 DAy=1/12x^2
*April 17, 2012*

**budget**

It's d?
*February 15, 2012*

**physics**

Two sounds, one of 200 Hz and one of 194 Hz occur at the same time. What beat frequency do you hear? Show your calculations I'm not looking for someone to do my homework for me. I just don't know what formula to use to figure it out.
*January 25, 2012*

**Pre-Calc-please check**

Thank you for checking
*January 4, 2012*

**Pre-Calc-please check**

please delete last two lines-that was just my work I calculated- it shouldn't e there actual answer is 243a^5-810a^4b + 1080a^3b^2 -720a^2 b^3 + 240ab^4-32b^5
*January 4, 2012*

**Pre-Calc-please check**

Please check this for me expand (3z-2b)^5 using Binomial Theorem (a+b)^n = n on top sigma in middle k=0 to right (n/k)a^(n-k)b^k (3a-2b)^5 = 5 on top sigma in middle k=0 on bottom(5/k)(3a)^5-k(-2b)^k (5/0)(3a)^5(-2b)^0+(5/1)(3a)^4(-2b)^1 +(5/2)(3a)^3(-2b)^2 +(5/3)(3a)^2(-2b)^3...
*January 4, 2012*

**Pre-CalcPlease check**

Thank you
*December 30, 2011*

**Pre-CalcPlease check**

Please check: 1.Write in expanded form: this is a sigma notation- 4 on top signma in middle k=1 on bottom to right of sigma is (k-1)(k-2) I solved: k=1 (1-1)(1-2)=0(-1)=0 K=2 (2-1)(2-2) = 1(0)=0 k=3(3-1)(3-2)=2(1)=2 k=4 (4-1)(4-)=3(2)=6 answer: 0+0+2+6 2. Write 4+9+16+25+36+49...
*December 30, 2011*

**English-Please check**

I have a question- I finished reading The Sound and the Fury and I have 50 questions to answer; I'm not sure about two of them; Why was Benji's name changed from maury early in life- The choices were: The mother disapproves of her brother Maury so she doesn't want ...
*December 19, 2011*

**Home Insurance**

lol. Yes i come here for answers to I'm very happy she pots these. Don't ban her.
*October 23, 2011*

**Spanish**

I had to rewrite from English to Spanish-Please check if I did them correctly- 1.She sees them. Ella los ve. 2. We see them. Nosotros los vemos. 3. I invito you. Yo te invito. 4. I invite him. Yo lo invito. 5.She see you all. Ella los ve. 6. He invites us. Él nos invita.
*October 20, 2011*

**math**

9.9
*October 16, 2011*

**chemistry**

what type of reaction is Nickel (II) ion and iron (III) ion and reacts to produce iron (II) and nickel (III) ions? is it: combination, decomposition, single or double replacement.
*October 6, 2011*

**chemistry**

balnced equation CaCO3-->CaO+CO2 how many moles of CO2 are produced if you start with 3 mol of CaCO3?
*October 5, 2011*

**chemistry**

what are the phases of all the reactants and products in the reaction 2Al + Fe2O3--->2Fe + Al2O3?
*October 5, 2011*

**chemistry**

how many moles of CO2 are produced if you start with 3 mol of CaCO3? balanced equation is: CaCO3--->CaO=CO2
*October 5, 2011*

**Budget**

that isnt it
*October 1, 2011*

**Physics**

A particle travels between two parallel ver- tical walls separated by 39 m. It moves to- ward the opposing wall at a constant rate of 8.8 m/s. It hits the opposite wall at the same height. The acceleration of gravity is 9.8 m/s2 . 39 m 9.8 m/s2 8.8 m/s a) What will be its ...
*September 18, 2011*

**physics**

A football is thrown upward at a(n) 37 angle to the horizontal. The acceleration of gravity is 9.8 m/s2 . To throw a(n) 57.8 m pass, what must be the initial speed of the ball? Answer in units of m/s
*September 11, 2011*

**Physics**

A parachutist descending at a speed of 19.6 m/s loses a shoe at an altitude of 41.6 m. What is the velocity of the shoe just before it hits the ground? The acceleration of gravity is 9.81 m/s2. Answer in units of m/s
*September 5, 2011*

**Physics**

A car traveling at a constant speed of 33 m/s passes a trooper hidden behind a billboard. One second later the trooper starts the car with a constant acceleration of 2.62 m/s^2. How long after the trooper starts the chase does he overtake the speeding car? (answer in units of s)
*August 28, 2011*

**Physics**

A car traveling at a constant speed of 33 m/s passes a trooper hidden behind a billboard. One second later the trooper starts the car with a constant acceleration of 2.62 m/s^2. How long after the trooper starts the chase does he overtake the speeding car? (answer in units of s)
*August 28, 2011*

** college physics**

A 1100 kg wrecking ball hangs from a 14m-long cable. The ball is pulled back until the cable makes an angle of 17.0 degrees with the vertical.By how much has the gravitational potential energy of the ball changed?
*June 22, 2011*

**Math**

Solve the logarithmic equation. Please show all of your work. Loga(x+4) + loga(x-4) = 4
*June 8, 2011*

**Chemistry :( **

How much heat is evolved when 878 kg of ammonia is produced according to the following equation? N2(g) + 3H2(g) 2NH3(g) ΔH = -91.8 kJ
*April 20, 2011*

**Pre-Calculus**

what is the range of each of these equations? 1. 4sin(3x-1)+4 2. -4sin(-3x+1)-4 3. 2sin(1.5x+.5)+2 4. -2sin(-1.5x-.5)-2
*March 17, 2011*

**arithmetic**

First, you have to find the least common multiple of the number of days between eggs (2,3,4) to get 30. Then, you make a list of numbers 1-30: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18 19 20 21 22 23 24 25 26 27 28 29 30
*March 16, 2011*