Wednesday

September 28, 2016
**9th grade**

ineed help! why did robert hooke's cork cells appear to be empty?

*Friday, September 19, 2008 by melphie*

**biology 9th grade**

trying to find information on why the six kingdoms classifications changed to 5?

*Tuesday, September 16, 2008 by blake*

**9th grade**

My son needs help with this question. Please help. Write a function rule for each table. x | f(x) 1 | 0.5 2 | 1 3 | 1.5 4 | 2 Any and all help is greatly appreciated since this is something that I am not familiar with.

*Friday, September 12, 2008 by mysterylvr6*

**9th grade**

I need to know about a woman name christine salazar can you help?

*Wednesday, September 10, 2008 by patricia*

**9th grade Eng. Honors**

How does the mood of a story affect the outcome?

*Wednesday, September 10, 2008 by Shara*

**9th grade Eng pre ap**

This question deals with the the 4 verb tenses By the climax, thr central character in the novel accepted his responsibility HELP!

*Monday, September 8, 2008 by Megan*

**health**

health concerns fron 1990 to 2010 for 9th grade heath class homework

*Thursday, September 4, 2008 by mark*

**9th grade**

explain how each value in the addition table changes when you move up 5 rows and left 3 columns

*Wednesday, September 3, 2008 by rozi*

**9th grade technology discovery**

i'm doing a career report and i need a good website to get info on nuclear power workers. ex: outlook , description , ect

*Thursday, August 28, 2008 by anthony*

**9th grade technology discovery**

i'm doing a career report and i need a good website to get info on nuclear power workers. ex: outlook , description , ect

*Thursday, August 28, 2008 by anthony*

**9th grade**

x,1,2,3,4,5 y,15,30,45,60,75 question 1 x,1,2,3,4,5 y,15,30,45,60,75 question 2 find the slope of each equation

*Wednesday, August 27, 2008 by eric*

**9th grade**

solve the rational equation 4/x-2=x/12 would the answer be -1,3

*Friday, August 22, 2008 by nicky*

**9th grade**

what divides the earth into the northern and southren hemispheres

*Friday, August 22, 2008 by Anonymous*

**9th Grade English**

can you tell me the rest of this saying? Knowledge is power~ If you learn to use it wisely you will also gain ______ _________ _______ .

*Monday, January 22, 2007 by shelby*

**Algebra1234567890!**

(-mn8)3 would it be: -m^3n^3164 (-mn8)3 = -24mn Without carrots I have no idea where your exponents are. how?I don't get this one? Is this Sandro from Mrs.Pfeiffer's class?What grade are you in? Leo is saying you need to use carets to show an exponent. As you have ...

*Wednesday, November 8, 2006 by Sandro!*

**9th grade algebra**

Evaluate the following expression given the function. function: h(x)=12/x problem: h(x) = -2 solution: -2 = 12/x. 1/12 * -2 = 12/x *1/12 (mulitply both sides by 1/12 to get x by itself. -2/12 = 1/x -1/6 = 1/x (simplified -2/12) I don't think this is right. Can you explain ...

*Wednesday, August 31, 2016 by Alexis*

**9th grade Physical Science**

Two dogs are fighting over a rope. The first dog is pulling with 10N to the right. The second dog is pulling with 15N to the left. Which way will the rope move?

*Wednesday, May 4, 2016 by Jennifer*

**Biology 9th grade**

I am stuck on a question on The Integumentary System, the question is Water molecules in the blood pass through the walls of the (blank) into the sweat glands. I am not sure, can someone help me, thanks.

*Thursday, April 28, 2016 by Sofia*

**science (9th grade)**

A form of 18 karat white gold contains 75% gold and 25% palladium. What type of solution is this? Specify which element is the solute and which is the solvent. help???

*Wednesday, April 6, 2016 by tim*

**Geometry**

In the diagram to the left, ÚABC\angle ABCÚABCangle, A, B, C and ÚDCB\angle DCBÚDCBangle, D, C, B are right angles. Which of the following is closest to the length of DE‾\overline{DE} DE ...

*Tuesday, March 1, 2016 by Tyteana*

**9th grade math i need help anything helps**

1. For the data in the table, does y vary directly with x? If it does, write an equation for the direct variation. x y 10 15 16 24 20 30 (1 point) yes; y = 1.5x yes; y = 2x yes; y = x + 5 y does not vary directly with x

*Sunday, January 3, 2016 by freddy*

**Grade 9th**

If 6.5g of zinc reacts with 5.0g of HCL,according to the reaction.Zn + 2HCL:zncl2+h2 Which substance is the limiting reaction? How many grams of the reactant remains unreactant? How many grams of hydrogen would be produce?

*Monday, December 22, 2014 by Ettefa Tirfessa*

**9th grade math**

The depth of water(d metres) in a harbour is given by the formula d = a+bsin(ct) where a, b and c are constants, and t is the time in hours after midnight. It is known that both b and c are non-zero and 20<c<35. If t=midnight, d=5; if t=noon, d=5; if t=1300, d=7; and if...

*Thursday, November 20, 2014 by Jessica*

**physics 9th grade **

What is the impulse that must be applied to stop a 90-kilogram running back on a field at a speed of 4.5 meters per second. (Hint:remember the relationship of impulse and change in momentum)

*Tuesday, November 18, 2014 by mya*

**Algebra**

Business Computers English Foreign Languages Health Home Economics Math Music Physical Education Science Social Studies GRADE LEVELS Preschool Kindergarten Elementary School 1st Grade 2nd Grade 3rd Grade 4th Grade 5th Grade 6th Grade 7th Grade 8th Grade High School 9th Grade ...

*Thursday, October 9, 2014 by Anonymous*

**9th grade algebra**

An Electrician Charges $120 After 2 Hours Of Work And $190 After 4 Hours Of Work. Write A Linear Model That Represents The Total Cost.

*Sunday, October 5, 2014 by Amanda*

**9th Grade Bio**

_______ is the process of digesting food and extracting the energy from it. Directions: Fill in the blank. Please help me answer this question. I've looked through all my textbooks and notes but they didn't mention this anywhere. Can someone please help me? Thanks

*Monday, August 25, 2014 by Layla*

**9th grade algebra**

suppose the population of deer in a state is 10,280 and is growing 1% each year. predict the population after 5 years.

*Thursday, February 6, 2014 by mobile*

**English**

I am doing my summer reading for 9th grade reading assignment & need to write about 10 passages from a variety of literary terms. Could you explain some of these terms?

*Thursday, August 29, 2013 by Valerie*

**Math for Educators**

Find the 9th term of sequence. 4, 12, 36, 108, .... The 9th term of sequence is ?? My answer 236,196 4+[3(n-1)] Correct?

*Tuesday, June 4, 2013 by Carol*

**Math (9th grade)**

Write an equation in point slope form of a line parallel to 12x-2y=6 and passes through the point (-4,-3)

*Tuesday, January 29, 2013 by Lydia*

**MATHEMATICS**

Suppose you won a contest at 9th grade start that deposited $3,000 in an account that pays 5% annual interest compounded continuously. You go to college for four years (four years later). How much will you have then?

*Monday, January 21, 2013 by Chencho el chancho choncho *

**urgence question for physic grade 9th **

A truck gradually start off from rest with a uniform. accelleration of 2m/s2 .it reaches as velocity of 16m/s. Using this equation v2 +2as .what is distance it travell while its accellerating?

*Thursday, January 17, 2013 by meer badok obany *

**9th grade living enviroment**

I Really need help i need 2 write in a paragraph a correalational study i really really need help.. PLEASE

*Wednesday, October 10, 2012 by ebony*

**9th grade Algebra**

The question that Mr. Kirk helped me with a little while ago. I am trying to do it on my calculator this time. I cannot seem to come out with the answer. I can't seem to get a logical answer. Will you please explain it to me? I just cannot grasp it!!

*Wednesday, August 22, 2012 by Reed*

**9th grade Algebra**

Did I get the right answer for this? Evaluate the expression 3x squared - 5x when x= -2 My Answer is 46. I got this by doing 3 times -2 and squaring that and then multiplying 5 times -2 and subtracting that ( negative 10 ) from 36. Is this correct?

*Wednesday, August 22, 2012 by Reed*

**c++**

Write a program that asks the user to input a grade that he or she received on an exam. The grade is an integer from 0 to 100 inclusive. The program should convert the numeric grade into the equivalent letter grade. Do the conversion by using a function Letter_Grade () that ...

*Friday, May 18, 2012 by jermaine*

**9th grade math **

The sum of two numbers is fifty-two. Their difference is twenty-two. What are the numbers?

*Tuesday, April 3, 2012 by Coolio *

**Math 9th grade**

2 angles have measures x and y. The sum of the measures of the angles is 180. Write a formula to express this relationship and solve the formula for y.

*Sunday, December 18, 2011 by ....*

**9th grade math honors**

suppose t(1)=-91 and -67 is another term of an arithmetic sequence, with. What is the equation of the nth term of the sequence if there are n terms between these two?

*Sunday, November 6, 2011 by Anonymous*

**math 9th grade**

the perimeter of a rectangle is 56 inches> the width of the rectangle is three-fourth of the length. Find the length of the diagonal of the rectangle. please help me!!!

*Sunday, October 9, 2011 by Paula*

**math**

a rectangular pen is to be constructed alongside a barn using 120 feet of fencing. the barn will be used for one side of the pen. What should the dimensions of the pen be to maximize its area. ***Can not use calculus. This is a 9th grade question

*Wednesday, September 28, 2011 by craig*

**Physical Science**

A=Vf - Vi divided by 29 seconds Can you please help me. This is 9th grade Physical Science homework.

*Tuesday, September 13, 2011 by Katelyn*

**Personal Project :)**

Hey I'm Kaela, 9th grade and we're required to do a mini personal project. I can't decide on what to do :/ Anyone help? I'm interested with models, runways, model photo shoots, etc etc. :)

*Tuesday, August 30, 2011 by Kaela*

**Math-Algebra 1**

I need help with a pizzaz work sheet ASAP if i dont get this done i am on the verge of failing math and repeating 9th grade. its Pizzaz 11.10 thanks

*Sunday, June 12, 2011 by Brandon S.*

**Product of Terms [ 9th Grade]**

Whats the product of terms for (4a^2c^4)(3b^4c) ? ^ = exponenets.

*Friday, June 10, 2011 by Sahud*

**Math 9th grade slopes**

A line connecting (5, 6) to another point has an undefined slope. What is the closest point on this line with whole number coordinates below (5, 6)?

*Friday, May 27, 2011 by Chelsea *

**lab science 9th grade**

what is an easy way to remember the equations used for: kinetic energy, potential energy, work, and power?

*Friday, April 22, 2011 by caylanne*

**9th grade science**

A strong acid, HBr, has been dissolved into a beaker of water. If the solution is known to be 0.000 001 M, what is the pH solution?

*Friday, March 11, 2011 by Amy*

**Spanish-9th grade**

I have a question-I'm not sure of this translation: ¿Qué comes parea a uno? Does this mean What do you stop to eat at one or Where? I'm stuck on this one. Thanks you

*Tuesday, March 8, 2011 by SammyLynne*

**9th grade math**

the triange is 31cm, side 1 and side 2 have equal lenghts, while side 3 is one centimeter shorter than twice then length of side 1, how long is each side?

*Friday, February 18, 2011 by Greg *

**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 by Trice*

**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 by Anonymous*

**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 by dayday*

**9th grade geometry**

If two angles are alternate exteriors and one of them has the measure of 3x squared, and the other had a measure of 21x what are degree numbers

*Thursday, December 2, 2010 by Anonymous*

**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 by Benjamin*

**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 by Cristian*

**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 by Angel*

**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 by riley*

**9th grade**

you push a book on a table so that its velocity is constant. If the force you apply is 15 N, what is the force due to sliding friction

*Monday, November 1, 2010 by bria *

**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 by me*

**9th grade math**

suppose you invested $1200 for four years. you earned $312 in simple interest. what is the interest rate?

*Tuesday, October 26, 2010 by me*

**9th grade**

In the odyssey, what is book 16, 17, 21, 22, and 23 about in a short summary? Also explain the conflict. Some Traits of an epic hero also. Please help!!!

*Sunday, October 24, 2010 by k*

**9th grade, science**

How to reverse a mixture of copper sulphate and distilled water? I know its a physical change but have no clue on how to reverse it!

*Sunday, October 24, 2010 by Javal*

**9th grade physical science**

a train moving west at a velocity of 15m/s is accelerated steadily to 17m/s over a 12 second period what is the acceleration of the train

*Saturday, October 16, 2010 by cindy*

**9th grade**

h=2.4t+32.2 paul's height is 69.4 inches. What is the approximate length, in inches, of paul's tibia bone?

*Tuesday, October 12, 2010 by cyndi*

**9th grade**

An uknown substance from planet x has a density of 10g/ml.it occupies a volume of 80ml. what is the mass of this unknown substance

*Monday, September 27, 2010 by gasharee*

**9th grade**

An uknown substance from planet x has a density of 10g/ml.it occupies a volume of 80ml. what is the mass of this unknown substance

*Monday, September 27, 2010 by gasharee*

**9th grade**

A square made by a length of string 8 cm long is reshaped into a circle. What is the circumference of the circle

*Friday, September 24, 2010 by Richard*

**9th grade**

Around the time of the roman empire the terms inch, foot, and yard were refine. what was the length of a foot based on?

*Friday, September 24, 2010 by Jacob*

**9th grade**

how can a egg be a chemical change? How can an antacid tablet be a physical and a chemical change?

*Thursday, September 23, 2010 by Nichole*

**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 by Giorgio*

**9th grade global history**

In the book 1001 Arabian Nights where does it explain about thievery as a way of life,humor through trickery of the innocent and distrust of foreigners.

*Wednesday, September 1, 2010 by Susan*

**9th grade**

two of the forms of a linear equation are standard form and slope-intercept form. explain when each one is more useful

*Thursday, August 26, 2010 by Donna*

**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 by Lola*

**9th grade**

What is the product of 23 and -27? -------------------------------------------------------------------------------- -621 -521 521 621

*Friday, August 20, 2010 by jonny*

**9th grade**

At a certain time, a vertical pole 3 meters tall casts a 4 meter shadow. What is the angle of elevation of the sun? Round your answer to the nearest meter

*Tuesday, August 3, 2010 by nae*

**9th grade Science (Biology)**

My question is: How does the diversion of groundwater for industrial uses affect water quality? -- I don't understand what diversion is, so at least maybe you guys could explain that. Thanks!

*Sunday, August 1, 2010 by Connor*

**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 by SHAKAYLA*

**9th grade (Algerbra)**

Why did Grok jump up and down the first time he saw a variable in algerbra class?

*Monday, May 17, 2010 by Austin*

**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 by Nat*

**9th grade algebra**

daniels print shop purchased a new printer for $35,000. Each year it depreciated at a rate of 5%. What will its approximate value be at the end of the fourth year?

*Tuesday, May 4, 2010 by sophia*

**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 by Malik*

**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 by Maggie*

**9th grade science**

explain how pouring water on a fire puts out the fire in more than 1 way

*Wednesday, April 21, 2010 by sciencefreak101*

**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 by sciencefreak101*

**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 by alyssa*

**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 by chemistry challenged*

**math 9th grade**

Find the angle of elevation of the of the sun when a 12.5 meter tall telephone pole cast a 18 meter shadow.

*Tuesday, March 23, 2010 by candler*

**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 by adrian villanueva*

**9th grade**

I am having trouble trying to figure out how to work this problem: Determine if each relation is a function. 1. Relation: (-2,2),(3,2,),(4,-1),(5,-2) How do i do this???????

*Tuesday, March 2, 2010 by NIki*

**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 by Anonymous*

**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 by LANA*

**9th grade**

a cube has a side that is (5x-3)centimeters long.a.what is its surface area?b.if x=3,what is its surface area

*Wednesday, January 27, 2010 by leona*

**9th grade**

how do i solve 3y-4+3x-5x+2 and solve for x and y

*Thursday, January 7, 2010 by maddie*

**9th grade**

how much heat is needed to change 20g of ice at negative 10 degrees c to water vapor at 200 degrees c

*Tuesday, January 5, 2010 by cait*

**9th grade science**

1)write the fomulas for the following compound: Magnesium hydroxide. 2)Write the names of the compound: Ba(ClO3)2 *the numbers are the subscripts* I really don't understand how to do those two, I did the rest of them. I could really use the help. THANKS!!

*Monday, January 4, 2010 by Anonomous*

**9th grade Math**

Discuss how you might use the ski slope to help remember the numerical slope of a vertical line.

*Thursday, December 10, 2009 by Mia HELP!!*

**9th grade**

10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?

*Thursday, November 12, 2009 by Princess*

**9th grade**

10 gm of silver nitrate solution is added to 10 gm of sodium chloride solution what change in mass do you expect after the reaction and why?

*Thursday, November 12, 2009 by Gazal*