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April 19, 2014

April 19, 2014

Post a New Question | Current Questions

**9th grade polynomials**

How do you write the expression for the area of the rectangle If the length of a rectangle is two more than three times it's width,then write an expression for area of the rectangle Find the perimeter of the rectangle in problem 1.
*Thursday, February 17, 2011 at 5:04pm*

**9th grade biology**

I believe that the "lines" that you would see (the cell wall and the plasma/cell membrane) would be thicker. They may even look like someone traced them with a pen, for example.
*Thursday, February 10, 2011 at 9:42pm*

**9th grade alegbra**

two trucks left buck's trucks traveling in opposite directions. one truck traveled at a rate of 70km/h, the other at 80km/h. after how many hours were the trucks 900 km apart?
*Tuesday, February 8, 2011 at 8:59pm*

**Physics 9th grade**

Don't listen to drwls for #4. The answer is 5m/2. this is because you travel 5m in 1 second. So you jump and fall down. So it is 5m/2 and the answer is 2.5 m/s.
*Saturday, January 29, 2011 at 2:02pm*

**9th grade**

To find a sales tax of 6% on a purchase of $90.00 using the proportion method you would write the following: 6/100 = ST/$90 The calculations in this problem would give you the following: (ST)= $540.00
*Tuesday, January 25, 2011 at 10:06pm*

**9th grade Math**

In the multiplication problem A S __x__A____ M A N each letter represents a different one of the ten digits 0, 1, 2, 3, 4, 5, 6, 7, 8, 9. Which one of the ten digits does A represent?
*Saturday, January 22, 2011 at 3:51pm*

**9th Grade Algebra 1**

the length of each of the legs of an isosceles triangle is 3km longer than the base. the perimeter of the triangle is 24km. find the length of each side
*Monday, January 17, 2011 at 6:26pm*

**Literary Analysis and Composition I**

Obviously you were trying to cheat also or else you would have never found this page in the first place so shut your little 9th grade mouth before i kick your ass you pansy.
*Friday, January 14, 2011 at 2:43pm*

**9th grade alegbra**

First multiply both sides by 3/2 -5/4 = 3c + 4 Then subtract 4 from both sides. Then divide both sides by 3 You can do this yourelf
*Tuesday, January 11, 2011 at 10:23am*

**9th grade (?) chem**

Consider these three reactions happening together: CaC2(s)+ 2 1/2O2(g)-> CaCO3(s)+ CO2 (g) CO2 (g) -> C(s) + O2(g) Ca(s) +2C(s) -> CaC2(s) The net reaction is Ca(s) + C(s) + (3/2)O2 (g) -> CaCO3 (s) Add or subtract the three heats of formation, ^H, as appropriate. ...
*Friday, December 17, 2010 at 12:28pm*

**Biology 9th grade**

definition: The ability or tendency of an organism or cell to maintain internal equilibrium by adjusting its physiological processes. examples: in summer after exercising, you are hot, right? sweating cools off your body for your body to maintain equal internal temperatures.
*Wednesday, December 15, 2010 at 7:45pm*

**9th grade**

the atmosphere..? a. creates tides b. has no effect on heat gain or loss c. allows heat to escape quickly in order to cool the planet d. keeps heat from escaping too quiclkly into space.
*Sunday, December 12, 2010 at 1:23pm*

**9th grade**

2x + (2x - 1) = 31 4x - 1 = 31 4x = 32 x = 8 The sides must be 8, 8, and 15
*Friday, December 10, 2010 at 8:40pm*

**9th grade**

the perimeter of a triangle is 31 cm. sides #1 and #2 have epual length, while side #3 is one centimeter shorter than twice the length of side #1. how long is each side
*Friday, December 10, 2010 at 8:19pm*

**9th grade**

The roller coaster will fall down? What do you mean here. What exactly is the right amount of mass? Is there a too little mass? Maybe too much mass prevents the car from being towed up the first high hill to start the rolling process. I have no idea what you are asking.
*Friday, December 10, 2010 at 10:57am*

**9th grade biology**

Indicate your subject in the "School Subject" box, so those with expertise in the area will respond to the question. Neurotransmitters cross the synapse to effect the subsequent neuron. The process is called neurotransmission. Chemicals that affect this would have ...
*Thursday, December 2, 2010 at 4:52pm*

**Form1/9th grade**

A mixture contains solids: Aluminium,camphor and sugar.Explain how you would obtain a sample of solid sugar from the mixture.
*Tuesday, November 30, 2010 at 2:49am*

**9th grade geography**

What are some negative facts for the Montane Cordillera. Also I am looking for some positive and negative facts for the Prairie Ecozone and Mixed Wood Plain ecozone. Need help please thank you!
*Saturday, November 27, 2010 at 3:43pm*

**9th grade physics**

A sled of mass 50 kg is pulled along a snow-covered, flat surface with a force of 200 N. the friction force acting on the sled is 49 N. what is the acceleration?
*Wednesday, November 17, 2010 at 6:18pm*

**9th grade Science**

the longest distance in a field and track event is the 10km run. the record holder for the women's 10km run is Wang Junxia of china. Assuming that she ran a distance of 10.0 km with an average f 5.644 m/s, what was her time?
*Tuesday, November 16, 2010 at 8:01pm*

**9th grade algebra**

A: force= constant*distance constant= force/distance= 32/4 in pounds/inch B: Force= (32/4)*20
*Monday, November 15, 2010 at 3:34pm*

**9th grade algebra**

no, the greatest rate was 2001-2001 the least rate was 2003-2004, rate was -2/per year.
*Monday, November 15, 2010 at 3:02pm*

**9th grade**

1+9a-8=8a 9a - 7 = 8a 9a - 8a = 7 a = 7
*Sunday, November 14, 2010 at 8:37pm*

**9th grade**

you multiply the term to each term inside the parenthesis and then combine them,, for example, 3(x+2y+2) multiply 3 to each term: 3*x + 3*(2y) + 3*2 3x + 6y + 6 hope this helps. :)
*Thursday, November 11, 2010 at 9:49pm*

**9th grade**

You have now asked this question 3 times. Go and read the links I gave you -- or better yet, read the play. Do not post the same question again, please.
*Thursday, November 11, 2010 at 8:37pm*

**9th grade Social Studies**

i also have problems studying and understanding social studies. i don't know what to do my grades are way low. can you please give me some tips and ideas on how i can work on it?
*Wednesday, November 10, 2010 at 5:48pm*

**9th grade**

Much of Europe is close to a sea coast. This enabled settlers to sail to this area and also provided fish to eat. The peninsulas also provided some protection from land invasions.
*Sunday, November 7, 2010 at 7:32pm*

**9th grade**

what might be the efect of the following a)the covering tissue of the cappilaries is much thicker b)air sack tissue is much thicker
*Wednesday, November 3, 2010 at 11:29pm*

**9th grade**

A bowler rolls a 5 kg bowling ball down a magical frictionless bowling alley. The ball accelerates at an average rate of 2 m/s^2. How much force did the bowler apply to the ball?
*Wednesday, November 3, 2010 at 7:16pm*

**9th grade MATH**

Dfrom point a to point b=215miles VELOCITYaverage=change in distance/change in time =215miles/4.5hrs Approx.=47.8 or 48mph
*Sunday, October 31, 2010 at 7:31pm*

**9th grade MATH**

Dfrom point a to point b=215miles VELOCITYaverage=change in distance/change in time =215miles/4.5hrs Approx.=47.8 or 48mph
*Sunday, October 31, 2010 at 7:31pm*

**9th grade math**

suppose u invested some money at 8% simple interest for five years. if u received $500 in interest, how much money did u invest?
*Tuesday, October 26, 2010 at 8:37pm*

**9th grade**

A crossroads for trade is a place where several long distance roads cross. Indiana, for instance, calls itself the "Crossroads of America." An ancient crossroads is the Middle East that received traders from Africa and Europe on their way to eastern Asia.
*Sunday, October 24, 2010 at 12:56pm*

**math needs help**

If you call the School Subject 9th grade a teacher to help you with math may never read your post. Please always identify the SCHOOL SUBJECT carefully so the right volunteer teacher will read it. Sra (aka Mme)
*Saturday, October 16, 2010 at 8:34pm*

**9th grade Deductive Reasoning Math**

Given: Angle A and Angle C are complementary to Angle B. Conclusion: Angle is congruent to Angle C. Determine whether each conclusion is valid based on the true conditional given. If not, write invalid. Explain your reasoning.
*Monday, October 11, 2010 at 7:58pm*

**9th grade MATH**

14+2y=78 -14 -14 __________ 2y=64 _ _ 2 2 y=32
*Wednesday, September 29, 2010 at 8:28pm*

**9th grade**

density=mass/volume mass=density*volume
*Monday, September 27, 2010 at 5:01pm*

**MATH? needs help**

Calling the School Subject "9th grade" may not get the right volunteer teacher reading your post. Please always try for the correct school subject. This looks like math to me and it is definitely NOT my area! Sra
*Sunday, September 26, 2010 at 8:47pm*

**Math, not "9th grade"**

Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
*Friday, September 24, 2010 at 8:55pm*

**9th grade**

Name the set(s) of numbers to which 1.68 belongs. a. rational numbers b. natural numbers, whole numbers, integers, rational numbers c. rational numbers, irrational numbers d. none of the above my answer a)rational numbers
*Monday, September 20, 2010 at 2:53pm*

**9th grade**

7/9 = ?/45 Divide: 45/9 = 5 Multiply: 7 * 5 = 35 7/9 = 35/45 Follow that pattern and try to solve the second problem. I'll be glad to check your answer.
*Sunday, September 19, 2010 at 4:22pm*

**Math, not "9th grade"**

Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
*Sunday, September 19, 2010 at 4:18pm*

**Math, not "9th grade"**

Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
*Sunday, September 19, 2010 at 4:18pm*

**9th grade**

find the domain and the range of the relation age of person 65,36,36,29 books to read 42,37,37,17
*Thursday, September 16, 2010 at 8:47pm*

**Mathmatics.. 9th grade**

Didn't you wrote this a while back? <<Last question, I swear! Math! - Not putting it, Wednesday, September 15, 2010 at 4:38pm>>
*Wednesday, September 15, 2010 at 5:33pm*

**Mathmatics.. 9th grade**

Your family is driving 188 miles to visit a family member, your father drives 63 miles then stops for a break, a) How many more miles are left in the trip, B) How long will the remainder of the trip take? *It says to label a variable, write an equation and solve for part b. ...
*Wednesday, September 15, 2010 at 5:18pm*

**9th grade**

7m-3m-6=6 4m - 6 = 6 4m - 6 + 6 = 6 + 6 4m = 12 m = 12/4 m = 3
*Monday, September 13, 2010 at 9:05pm*

**9th grade math**

if a man mixes 12 lbs. of peanuts thats $1.25 a lbs. with a pound of cashews at $1.80 a lbs. how many pounds of cashew do you need to make a $1.50 a lbs. mixture explain in words and numbers
*Monday, September 13, 2010 at 8:12pm*

**9th grade science**

well there are three spheres in earth: the atmosphere, lithmosphere, and hydrosphere. what it means to overlap each other just means that the lithmosphere(ground, soil) is at the bottom and hydrospher(water)and atmosphere(air) is over lapping it. And all of these are biosphere...
*Saturday, September 11, 2010 at 10:46pm*

**9th Grade Biology**

Please only post your questions once. Repeating posts will not get a quicker response. In addition, it wastes our time looking over reposts that have already been answered in another post. Thank you.
*Friday, September 10, 2010 at 12:11am*

**9th grade math**

x to the 2nd power if x = 3/4 how do you find 3/4th to the 2nd power? 3/4th times 3/4th right? so the answer would be 9/16ths.. right?
*Thursday, September 9, 2010 at 5:02pm*

**9th grade**

3 - (2t + 5) = -12 3 - 2t - 5 = -12 -2t = -12 + 2 -2t = -10 t = 5
*Thursday, September 9, 2010 at 12:51pm*

**9th grade science**

well there are three spheres in earth: the atmosphere, lithmosphere, and hydrosphere. what it means to overlap each other just means that the lithmosphere(ground, soil) is at the bottom and hydrospher(water)and atmosphere(air) is over lapping it. And all of these are biosphere
*Wednesday, September 8, 2010 at 5:10pm*

**9th grade Algebra**

the population of Concord in 1980 was 400 greater than half the population Euclid. The sum of the two populations was 29,600 less than twice the population of Euclid. What was the population of each city in 1980?
*Tuesday, September 7, 2010 at 6:17pm*

**9th grade**

I am woking on Patterns and Inductive reasoning. I need help on numbers 14-16. Find the next two sequence. 14. Martha, Abigail, Martha, Dolley... 15. Geroge, Thomas, Abe, Alexander.... 16.Aquarius, Pisces, Aries, Taurus.... Please help me!
*Thursday, August 26, 2010 at 3:39pm*

**9th grade**

A person standing on Mars would weigh 38% of his earth weight. What is the Mars weight of a person with an earth weight of 55 kilograms?
*Wednesday, August 25, 2010 at 11:43am*

**9th grade**

What is the product of 23 and -27? -------------------------------------------------------------------------------- -621 -521 521 621
*Friday, August 20, 2010 at 12:11pm*

**9th grade**

what's the relationship between the input and output? 0->3 (add 3+0) 1->5 (add 3+1) 2->7 (add 3+2) 3->9 (add 3+3) so...
*Thursday, August 12, 2010 at 8:04pm*

**9th grade**

You want to add M grams of water to 2 grams of .65 solution? amount of iodine in final= amount of iodine in initial .42(M+2)=.65(2) solve for M.
*Monday, July 26, 2010 at 4:40pm*

**9th grade**

How many grams of water must be added to 2 grams of a 65% iodine solution in order to produce a 42% iodine solution? Round your answer to the nearest tenth
*Monday, July 26, 2010 at 1:34pm*

**Math, needs help**

If you title this MATH for the School Subject, you will get a proper volunteer teacher to answer your post. At leasr, the School Subject is NOT 9th grade. Sra
*Sunday, May 23, 2010 at 8:07pm*

**9th grade**

Let's set up a proportion and let x = the number of cards need for a 100-story house. 83/27,000 = 100/x Cross multiply: 83x = 2,700,000 x = 32,530.1205 = 32,531
*Monday, May 17, 2010 at 4:24pm*

**9th grade**

bryan berg built an 83-story house of cards in 1995. he used 27,000 playing cards to accomplish this feat. at this same rate, about how many cards would it take to build a 100-story house of cards?
*Monday, May 17, 2010 at 4:18pm*

**9th grade**

25c^2 - 40c - 9 you just FOIL it! (first, outside, inside, last) multiply it over in an arc shape....the first number of the first () times the first number of the second (), and so on and so forth!
*Tuesday, May 4, 2010 at 9:09pm*

**Math 9th grade**

x^2 + 5x +6/ x^2 - 3x -10 How do I do this? Is it asking me to divide? The answer choices are as following: A)x + 3/ x - 5 , x ≠ 5 B)x + 3/ x - 5 , x ≠ -2, 5 C)x2 + 5x + 6/ x - 5 , x ≠ 5 D)x2 + 5x + 6/ x - 5 , x ≠ -2, 5
*Tuesday, May 4, 2010 at 8:02pm*

**History/9th grade**

I am trying to understand and I hope you can help me. I just want some more explaintion about the great depression. Why do people call it a leveler? I heard some kids over at the table next to me at lunch today. Like I said I just want to know. I am studing about presidents ...
*Tuesday, May 4, 2010 at 6:08pm*

**9th grade - Civics**

When was the last time Washington D.C.'s Electoral College votes went to a candidate form the Republican Party? How many Electoral College votes do they have?
*Wednesday, April 28, 2010 at 7:26pm*

**9th grade Algebra**

8/12 3/12 1/12 12/12=1
*Monday, April 26, 2010 at 3:44pm*

**9th grade Algebra**

1(2/3) + 2(1/4) + 3(1/12) = 8/12 + 6/12 + 3/12 = 17/12 Divide 12 into 17.
*Monday, April 26, 2010 at 2:47pm*

**9th Grade Social Studies**

Had the world gone along with Wilson’s plan to remove economic barriers between nations, what kind of place would the world be? Would it be better? Worse? How would you answer this question?
*Friday, April 23, 2010 at 7:18pm*

**9th grade**

Given Circle D, find the length of segment DB if the measure of segment DE = 25 units and the measure of segment BC = 24 units. Explain your solution.
*Thursday, April 22, 2010 at 1:56pm*

**9th grade**

james accidentally spills 2 containers, mixing their contents. he checks and finds that 1 contains salt crystals while the other contained powdered sand. describe a method that he might use to separate the 2 mixtures without losing any of either mixture.
*Wednesday, April 21, 2010 at 10:44pm*

**9th grade**

Nice of you drwls. Are you solving for p? Or are you expanding? Assuming you are expanding the equation: p^3+8p^2-7p-56 Assuming you are solving for p, and the entire equation is equal to zero: p=squareroot(7), p=-8
*Wednesday, April 21, 2010 at 9:40pm*

**9th grade (math)**

Oh Puh-leeze http://www.algebrahelp.com/lessons/simplifying/foilmethod/ We'll be happy to critique your work. Don't just post your problems, under different names, and expect us to do them all. And while you are at it, post the subject and not the grade level
*Saturday, April 17, 2010 at 7:22am*

**9th grade**

(2x-1)(x+2) =2x(x+2)-1(x+2) =2x^2+4x-x+2 =2x^2+3x+2
*Saturday, April 17, 2010 at 2:50am*

**science, 7th,6th,8th,9th grade**

Less time, less people to operate machines, and less cost to company due to training the different people to manage the job.
*Friday, April 16, 2010 at 1:28am*

**Algebra - 9th grade**

I'll do for x equation by 4 ... 2x + y = 28 2x = 28-y x = (28-y)/2 you do for y.
*Tuesday, April 13, 2010 at 9:52pm*

**9th grade**

Guru's formalities aside, z+xyz=w factor z. z(1+xy)=w divide by z (1+xy)=w/z subtract 1. xy=(w/z)-1 divide by y x=(w/yz)-(1/y) And that's your answer! :)
*Thursday, April 8, 2010 at 12:20pm*

**9th grade acc. algebra**

how do you do this? this is the full question and all info: "A line with a slope of -3 passes through the point (k,4). Find the y-intercept of the line in terms of k." I would like to know how to do this along with the answer so i can know im doing it right please!!
*Tuesday, April 6, 2010 at 4:43pm*

**9th grade chemistry**

lol well have you seen my name?? i cant do this... i figured out other equations but i dont know why i cant figure this one out... oh well i just ask other people to help me because i need someone to show me how to do it right infront of me but thank you for all of your help...
*Monday, March 29, 2010 at 6:07pm*

**9th grade chemistry**

you dont even need any equation to do this if you know the mass, the no of moles can be calculated from there i.e. no of moles=mass of sub/molar mass from there if the volume is given so you will be able to calculate the solubility which is equals to molar concentration
*Monday, March 29, 2010 at 5:44pm*

**9th grade chemistry**

first find the solubity but i just have an idea. in my country the provide the temp. we just find the solubility and the product
*Monday, March 29, 2010 at 5:26pm*

**9th grade chemistry**

At what temperature will 50. grams of NH4Cl just saturate 100. grams of water? (the 4 is the number of elements)
*Monday, March 29, 2010 at 5:21pm*

**9th grade**

given that a(-1,8) ,b(2,4) and if the line y=4 is the axis of symmetry of triangle abc find c.show that triangle abc is an isosceles triangle,calculate the area of triangle abc,calculate the perpendicular distance from a to bc
*Tuesday, March 23, 2010 at 8:35am*

**9th grade**

soil dwelling insects are examples of invertabrates. explain why this statement is true and use examples of two soil dwelling insects
*Tuesday, March 23, 2010 at 7:26am*

**9th grade**

1j + 2c =11 1L + 1c = 5 1j + 2L = 3 1j + 1c + 1L = t What is t?
*Monday, March 22, 2010 at 10:58pm*

**Math, not "9th grade"**

Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
*Thursday, March 18, 2010 at 9:58am*

**9th grade**

5x-3y=23...............equation (1) 3x+5y=7.................equation (2) Eq. (1) x 5: 25x-15y=115......Equation (3) Eq. (2) x 3: 9x + 15y=21........Equation (4) Eq (3)+Eq. (4): 34x = 136 (eliminating y) Therefore, x = 4
*Tuesday, March 16, 2010 at 6:56pm*

**Math, not "9th grade"**

Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
*Wednesday, March 10, 2010 at 6:21pm*

**9th grade**

4y-9=15 4y=15-9 4y=6 y=4/6 y=2/3
*Thursday, March 4, 2010 at 9:43pm*

**9th grade math (algebra 1)**

Fine the solution set of each system of linear equations or inequalities below by graphing. Show all work under the graph of each system. 1. x + y = 3 2x - 2y = 6
*Tuesday, March 2, 2010 at 7:33pm*

**9th grade Algebra**

A health food store mixes granola that costs them $2 per pound and raisins that cost them $ 4 per pound together to make 25 pounds of raisin granola. How many ponds of raisins should they include if they want the mixture to cost them a total of $80?
*Monday, March 1, 2010 at 1:32am*

**Math, not "9th grade"**

Assistance needed. Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
*Sunday, February 28, 2010 at 10:58am*

**9th grade SCIENCE**

I have to list 5 different organic compounds; list different types for each; name; structure; properties; and uses. I am a bit confused as to what an organic compound actually is. I know it must contain a carbon, but would vegetables or household foods be considered organic ...
*Friday, February 26, 2010 at 3:56pm*

**9th grade**

Does it have to be informative, persuasive, etc? Your best bet would be to do something that is interesting you because, you don't need to really memorize anything because you can just state your opinions on it and then it'll be easier to talk about it for as long as ...
*Monday, February 22, 2010 at 4:50pm*

**Chemistry, not "9th grade"**

Assistance needed. Please type your subject in the School Subject box. Any other words, including obscure abbreviations, are likely to delay responses from a teacher who knows that subject well.
*Sunday, February 21, 2010 at 5:23pm*

**9th grade**

A student put 12.4 grams of potassium sulfate in 29 ml and stirred for 3 hrs. he saw that not all of the solid dissolved, so he removed the extra solid and found it had a mass of 3.4 grams. what was the solubility of the chemical?
*Sunday, February 21, 2010 at 4:44pm*

**9th Grade Math**

Ok, well you need a system of equations. 5x+3.50y=2265 x+y=543 x=543-y 5(543-y)+3.50y=2265 solve for y and substitute in other equation to solve for x can you take it from here?
*Friday, February 12, 2010 at 9:50pm*

**9th Grade Math**

The money collected at a school basketball game was 2,265 from 543 paid admissions. If adult tickets sold at $5.00 each and student tickets sold for $3.50 each, how many tickets of each kind were sold?
*Friday, February 12, 2010 at 9:38pm*

**9th grade geometry**

That depends upon the angles of the triangle. If it is equilateral, each side is 15 m. If it is a right angle isosceles triangle, the two equal sides are each 13.18 m long and the hypot4nuse is 18.64 m. The longest side's can be as long as 22.5 m.
*Friday, February 12, 2010 at 10:12am*

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