Number of results: 194,893

**Science**

Science project ideas for science fair. I need to prepare a model for science fair. But I need some ideas about the major problems facing today's world. So that I can get idea for improvement in any area and to show this in science fair. Please get me know about the ...

*October 21, 2014 by Edd*

**science (physics) Need to solve this today please**

(a) Express the vectors A, B, and C in the figure below in terms of unit vectors. (b) Use unit vector notation to find the vectors R = A + B + C and S = C – A – B. (c) What are the magnitude and directions of vectors R and S? Well the picture goes and has a vector A ...

*September 29, 2007 by ~christina~*

**science**

i need help with these questions because i need to write a report on it helpp please What are the implications of stem cell reasearch for today and future generations What are stem cells? What are they capable of? How are they used in science/ medicine presently? What ...

*September 23, 2007 by chelsea*

**Physics**

Please help!!! Physics test!? I have a physics test tomorrow on projectile motion, and I don't feel ready for it. I'm having trouble in the class and I need to ace this test. The problem is I get confused when I get a problem. I don't know how to proceed. After I read the ...

*October 9, 2012 by Mike*

**Math**

1)Solve sin2x=3cosx for all values of x. What do I need to do? 2)Solve e(sqrtx)=4 3)Approximate the greatest real root of f(x)=x^3-2x-5 to the nearest tenth. I just need help not do for me. HELP. Please and Thank you. Explain please no links.

*September 30, 2008 by Anonymous*

**algebra**

solve by substitution 5x-2y = -5 y - 5x = 3 could someone take a min a show me how to do this problem by steps so i can do the rest of my problems and wait a min so i may ask questions. I m failing my algebra class and desparately need help. 5x-2y = -5 y - 5x = 3 take the ...

*August 10, 2006 by Tammy Evert*

**English 2**

Which hero's story, King Arthur's or Sundiata's, has the more relevant message for young people today? Compose an essay that answers this question, giving at least two examples from the selections and applying them to issues young people face today. I still need help with this...

*October 12, 2010 by mysterychicken*

**English 2**

Which hero's story, King Arthur's or Sundiata's, has the more relevant message for young people today? Compose an essay that answers this question, giving at least two examples from the selections and applying them to issues young people face today. Need help with the first ...

*October 11, 2010 by mysterychicken*

**Math help please**

1. Solve for x. 4(x - b) = x b = 4/3x b = 3/4x x = 4/3b x = 3/4b 2. Solve for y, then find the value of y when given x = 2. 6x = 7 - 4y -12 7/4 19/4 24 I need help solving these. Can you please explain how to solve these problems?

*October 2, 2013 by Charlotte*

**U.S.History**

i need help answering this question:how is the constituiton "alive" today. i don't know if i understand it correctly does it mean like what features or parts of the Constitution make it flexible enough to apply to the nation's needs today? if that is what it means..can i ...

*January 27, 2009 by y912f*

**I really need help!**

Hi, I really need instructions. Can someone please tell me how to make a coordinate plane and a rectangle on the plane in Microsoft Excel 2013 please? I really I need an answer soon because this is due today!!!! Please someone help fast! Thank You :/

*April 24, 2015 by MusicLover14*

**English-Native speakers**

Need help with one sentence structure. I don't know if I am going to be able to explain it good. It goes like this "the measures will have to be much more drastic than if they were conducted today" I need help with this part "than if they were conducted today". I want to say ...

*November 28, 2012 by mark*

**AED**

help please I need info for this ? Discuss how one of the events has shaped today's classroom and how that event is still reflected in today's classroom. I chose this one for this question 1981 Distance learning becomes a reality

*April 22, 2008 by Dawn*

**English**

Which is the best way to write this sentence. Today the Pink Palace Museum has a science center too. 1.Today the Pink Palace Museum is having a science center too. 2.Today the Pink Palace Museum had a science center too. 3.Today the Pink Palace Museum will have a science ...

*December 14, 2012 by Hayden*

**science**

i don't know how to solve this. looked through all my note but i'm not sure what kind of formula i am to use or if i even need one! please help me to understand this: "calculate the work need to make room for the products in the combustion of S8(s) to SO2(g) at 1 atm and 0 ...

*April 16, 2011 by marie*

**Algebra**

Help please (x^3 + 3x^2 - 2x+7)/(x+1)=11 I don't how how to solve this at all-the answer should be 11 but I don't have a clue how to get it-please show me this one so I can hopefully do my homeowrk-we did this in class today but I don't understand it

*March 7, 2012 by Jeremy*

**science**

i need to solve this : 1. we should show the chemical structure of oligosaccharide which contains 2 galactoses and 1 saccharose. 2. compare the difference in physical features og dicarboxylic acids and glucose beta chain 3. determine the calorific value of 5g saccharose please...

*March 29, 2011 by nina*

**Math**

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...

*May 26, 2009 by Amy*

**math**

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...

*May 26, 2009 by Amy*

**Math**

I need help with these three problems. They are on a Study Guide and I need some refreshing up of how to do them. 17. Solve the equation using the zero product property... -8n(5n+3) 19. Solve the equation by factoring 5z^2-2z-3=0 20. Solve the equation by completing the square...

*May 27, 2009 by Amy*

**Earth Science**

i need help on a question "Describe how Earth would be different today if it contained no radio active material. What would the consequences be for the Earth's interior layers?" please help and thanky you

*September 16, 2009 by Anomynous*

**Earth Science**

i need help on a question "Describe how Earth would be different today if it contained no radio active material. What would the consequences be for the Earth's interior layers?" please help and thanky you

*September 17, 2009 by Need Help*

**Math/Science(Short Question 10th grade))**

[History Homework] Please answer 1. What are 2 pieces of technology essential today? 2. If you could give a prehistoric person one item from today what would it be? 3. Why is writing important for civilizations? 4. Why is theater/drama important to society? 5. What are some ...

*September 15, 2011 by Bone*

**6th Grade Math Help Please**

Hi, I need help because I'm really stuck on this math word. Can someone please define what rational coordinates means what? I really need help fast because this project is due today! Thank You :)

*April 24, 2015 by MusicLover14*

**Science 7R (Lab questions)**

We did a lab today at science and for homework we have to answer questions about the Lab. I need help on 2. 12. Name two ways that a plant and animal cells differ in structure? 13. How are plant and animal cells different in function? She said that we have t write it in ...

*December 1, 2011 by Laruen*

**7th Grade Science**

Hi, I really need help with this. I'm supposed to find information about biodiversity and fishing or housing and answer these two questions: "What challenges does [your topic] pose to biodiversity? What do you think should be done and why?" The websites my school gave me are ...

*March 18, 2016 by Music Lover 14*

**English**

1. I am on my own today. 2. I am loney today. 3. I am alone today. 4. I am lone today. =================== Are they the same in meaning and grammatical?

*April 20, 2015 by rfvv*

**math**

please help me solve this problem quickly! John and Melanie are designing a science experiment for the school science fair. Their experiment requires a large amount of copper wire. They need 22 spools of copper wire that each contains 31 meters of wire. How many kilometer of ...

*July 5, 2016 by Nicole*

**English- Mrs. Sue**

So I have my thesis statement down but now I just need examples about speaking up and why you need to address things in this world today. Can you please help. Thanks soooo much:))

*February 8, 2014 by Anonymous*

**WHY SKIPED MY QUESTION??????????????**

PLEASE I NEED TO FINISH BY TODAY

*May 26, 2010 by anu*

**English**

i need help finding some propaganda used today i need an example of each of the following propaganda: glittering generalities transfer bandwagon please help and thank you

*January 8, 2011 by needhelp!!!*

**Algebra**

Please help! I need to factorise and solve this equation, x^2 +x -30 =0 I then need to explain how I would use the answer drom this to solve the equation 4x^2 +4x-120=0

*May 5, 2010 by Mac*

**math**

how to write 50 thousand please i need the answer today

*July 16, 2014 by angela*

**Math**

What is {23%,0.21,1/4,1/5} from least to greatest I need the answer today please thank you

*January 4, 2016 by Nick*

**History**

I need help on how people influenced us. I am doing some history homework about the great depression (late 1920's through early 1940's) and I need some future connections like how did Duke Ellington influence us today? Or Walt Disney influence us today...ect. I can't find ...

*February 20, 2013 by Sam*

**Math, Please Help! I don't understand!**

I need help because I don't understand how to solve this equation. 37. x/a - 1 = y/b for x So... does it mean solve for x? 39. V = 1/3 * pi * radius^2 * h for h So... does it mean solve for h? As you can see, I am really confused. Please help.

*November 4, 2014 by Alexandra*

**Science**

My homework today is. Is Pluto really a planet? I always thought it was, can you help me please?

*October 10, 2007 by Samirah*

**Science**

Hello, I just started my chem class today and I am totally stuck on this question: Hurriance Katrina had the 2nd lowest ever recorded barometric pressure at 0.920 mb. Convert this pressure to units of… a. atmospheres. b. Inches of Hg. I know i need to convert but I'm not ...

*September 2, 2015 by Elizabeth*

**trig 30**

Please help I need to solve the following question for x, where 0<x<2pi. and then write a general solution for the equation. The question is 2cos^2 x + cos x =1. I need to solve this using radian measurement. I solved it using algebra and was told I wasn't allowed. Could...

*April 29, 2010 by Rae*

**science physics**

i don't get how to solve this please help me Two resistors, 47 Ù and 82 Ù, are connected in series across a 45 V battery. What is the current in the circuit?

*January 5, 2012 by jason*

**Science**

NEED HELP PLEASE THANK U U R NICE :) Describe how burning fossil fuels has created an imbalance in the carbon cycle. Most people drive cars and heat their homes with petroleum, coal, or natural gas. Why is it important to find alternatives for these sources of energy? What are...

*April 19, 2013 by Cindy*

**Science Fair Project**

Please help any tutors around, i really need help on what topic to choose, and my science fair is in February 16, 2015!!!!!! I just want to get a really good mark so i get an A in Science again this year in my report card. From a Student in need!!!Wimbika

*February 3, 2015 by Wimbika*

**Science-Elements**

which of the alchemy symbols is used today with a completely different meaning? what does that symbol mean today? I couldn't find the information for this in my text, I think it's iron, but I'm not sure, your help will be appreciated, thanks

*March 29, 2010 by Sara*

**Math**

A boy is mowing a rectangular lawn 40ft long and 30ft wide. He has cut all of it except for a rectangle that is 20ft long and 15ft wide. What fractional part of the lawn remains uncut? I need helping figuring out how to solve this. My answer sheet says its 1/4 but I don't know...

*November 13, 2016 by Jess*

**Precalc**

Can someone please help me? I don't know how to solve for time under 23 units. When I try I think I get the answer for above 23 units and when I try to subtract from the whole period my answer is wrong. The correct answer is 5.1337 hours. Fidel is measuring the light intensity...

*August 19, 2011 by Rose*

**geometric**

I need help on this following problem: The length of a rectangle measures 1 cm less than its width. The perimeter of the rectangle is 106 cm. Find the dimensions of the rectangle. Now i have tried to solve this problem in multiple attempts as can be seen here: 54+53=107, 53+52...

*January 26, 2015 by Bob Heffely*

**Algebra**

I need help on this following problem: The length of a rectangle measures 1 cm less than its width. The perimeter of the rectangle is 106 cm. Find the dimensions of the rectangle. Now i have tried to solve this problem in multiple attempts as can be seen here: 54+53=107, 53+52...

*January 26, 2015 by Anonymous*

**science**

please help me i am looking for word problems involving potential and kinetic energy i need for my homework in science PLEASE HELP!

*December 9, 2009 by iya*

**science**

From the cosmic background radiation, what can scientists infer that the universe was like after the big bang ? a) very small b) hot c) the same average temperature as it is today d) cooler then it is today

*November 22, 2013 by victoria*

**Statistics homework distribution problem?**

i need help with how to solve this: consider a normal distribution with mean 30 and standard deviation 2. what is the probability a value selected at random from this distribution is greater than 30? the book gives me the answer but i need to know how to solve it. please help?

*February 20, 2012 by jess*

**algebra 1b**

i need help!!!!!!!!!!!! Please post your problem and your attempts to solve it. Then we'll be glad to help you. what's the problem? I have a test on wednesday or thursday and I think I'm gonna pass it! I need help with Simplifying i need help with sketching the graph of the ...

*October 1, 2006 by unspoken*

**Science Fair Project**

Please help anyone!!!!!!!!!!!!!!!!!!!!!!! I need a science project that can be done in 2-5 days but also that can give me a very good mark!!!!!!!!!!!!!!! please reply A.S.A.P.!!!!!!!!!!!!!!!!!! -From a Science Fair Project in need of a project which can be done in 2-5days.B.T....

*February 11, 2015 by Wimbika*

**poetry**

I need help determining the meter in my poem. The Ocean says, "Roar" to wake me up, And I smile as I grab my coffee cup, Because this is the day the Lord has made! I refuse to quiver and be afraid. The sunburst peeks through my window wide, And stay that way till close noon ...

*June 30, 2011 by Person*

**math**

A company will need 55,000 for a new addition. To meet this goal the company deposits money in an account today that pays 5% interest annual compound quarterly. to meet this goal in five years what would the company need to deposit today?

*December 18, 2014 by Michelle*

**Science**

Hi I need help finding something. I need 6 primary articles about forensic entomology (the use of insects to solve crimes).

*November 30, 2007 by Anonymous*

**Science help please**

Hello i need some help with this science project please. How long would it take to get to mars if i'm travel 600 miles per hour. Thanks :)

*February 5, 2016 by Meah*

**Physics**

a car travels 59.78 miles east in 89.67 minutes, then 89.67 miles north in 59.78 minutes, and then 29.89 miles at 59.78 degrees west of south in 149.45 minutes. whats the magnitude of the car's average velocity in miles per hour??? Please help!!!!!! P.S. please don't round ...

*September 7, 2009 by Autumn*

**Science**

good day! can you please give me the wave explanation for colors? i need it for my report tomorrow. i need an immediate answer please!

*July 4, 2010 by Kareen*

**science**

i need help on my science project i have a science fair on march somethin please give me any ideas possible u know plz thanks. (0.o)

*January 23, 2008 by jonah*

**Science (Cont.)**

Can anyone please answer my science question???? PLEASE!! if nobody on here is answering, try doing a little research on other websites i need some help on my homework

*February 22, 2007 by jk1115*

**Art**

PLEASE HELP! URGENT! I need to find an example of where buddhist art can be found today like an example of it.. a statue, temple, etc. I need one so i can write about it. Thank you soo much!

*August 23, 2012 by Chula*

**Algebra**

I have a math CRCT test today and I needed some help on a last minute review problem. Can someone please explain how to solve this? 1. 12x-3+6x-2=31 -MC

*April 22, 2009 by mysterychicken*

**science(physics)**

the sum of three forces f1=100n, f2=80n, f3=60n acting on a particle is zero. The angle between f1 and f2 is: Please solve

*June 9, 2011 by marley*

**science**

From the cosmic background radiation, what can scientists infer that the universe was like after the big bang? A. Very small B. Hot C. The same average temperature as it is today. D. Cooler than it is today. Is the answer C? Thank you for the help😊

*April 9, 2015 by Kanani*

**planning**

In three to five sentences, answer the following questions. 1.Where do I picture myself five years from now? What am I doing? Where am I going? 2.How do the course choices (both elective and required) that I make today lead to the fulfilment of this dream? 1. Five years from ...

*August 30, 2010 by Anonymous*

**science**

how can the chemical energy of your lunch today become the energy you need to deliver the newspapers after school tomorrow?

*January 6, 2009 by jayme*

**algebra**

I need help breaking down the steps to solve HELP ME PLEASE solve with an exact answer. x^2 + 2x - 8

*January 17, 2012 by becca*

**biology**

thank you for anwering my question Ms.Sue i just need you to explain it further on the question earlier.Is a scientific hypothesis accepted if there is no way to demonstrate that th e hypothesis is wrong ? thank you. please i need the explanation today.

*September 15, 2009 by rx*

**science**

PLEASE HELP I NEED A GOOD SCIENCE FAIR PROJECT. PLEASE HELP THANK YOU JUSTIN

*November 28, 2012 by justin*

**Algebra 1 a**

Need help to solve can anyone help me please 6x-9y = 25.5 7y-2x =-10.0 solve the elimination method

*June 26, 2011 by Manu*

**science**

See i took this practice test and i got a lot wrong i need help its on nature of matter and i need help so my mom can get of my back help me please I'm desperate for help please i beg

*January 25, 2010 by Brianna*

**math**

Solve: (don't forget about imaginary numbers) 5x^2-7x+12=0 how do I solve this? do I need to use the quadratic formula? please help and thank you

*March 12, 2012 by Anonymous*

**Math**

I really, really need help! Solve for the indicated variable. 8x+4y=12 Solve for y. Explanation too, please! Please and thanks!

*January 4, 2012 by Izzy.*

**Geometry :(**

this maths problem is wrecking my head.... 1.find the points of interesction of the line L and the circle k in the following L:x-2y=0 K:X Squared + y squared=25 I would solve both equations for y, and then you'll have a system with two equations and two variables: y = x/2 y...

*September 9, 2006 by emer*

**Math Help Please...**

x/3-2/3=1/x *Solve the rational below. I really need help. Multiply through by 3x x^2 -2x = 3 And solve. I don't get it... can you explain it more.then I can help you Margie

*March 4, 2007 by Margie*

**Physics/Science**

A startled armadillo leaps upward rising 0.547 m in the first 0.202 s. (a) What is its initial speed as it leaves the ground? _____m/s (b) What is its speed at the height of 0.547 m? _____m/s (c) How much higher does it go? _____m Use distance vs time: d=vi*t - 1/2 g t^2 solve...

*January 25, 2007 by TechnoBoi11*

**Physics**

A basketball player, standing near the basket to grab a rebound, jumps 73.6 cm vertically. How much time does the player spend in the bottom 15.4 cm of the jump? I've been told that I need to use the height of the jump to solve for V. Then I need to use that V in the equation...

*October 10, 2007 by Lindsay*

**college algebra--I really need help!!**

solve the following exponential equation. exact answers only. 1-9x 2x 2 = e I hope that you understand this question. I don't and need some help please. Can you show all answers please.

*November 25, 2012 by Ladybug*

**Science**

Which branches of science do pharmacists need knowledge of to do their job properly? A.physics and chemistry B.biology and chemistry C.chemistry and geology D.physics and computer science Is the answer B?

*August 19, 2014 by Gwen*

**Religion**

i need to write an essay about if anne frank's life is relevant to teenager's today. Please hele me!!

*June 24, 2012 by Ellie*

**6th Grade Science Help PLEASE!**

Hi, so I did the coin drop experiment. I finished project, wrote my hypothesis, my data, my observations, and my conclusion. What I need help is that in this experiment I don't know which on is the independent and dependent variable. That's all I need. Can someone please help ...

*April 15, 2015 by MusicLover14*

**physics**

A 34 g glass thermometer reads 21.6°C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7°C. What was the original temperature of the water? I need help on this please could someone please help out.Thank you...

*April 24, 2012 by Akbar*

**physics**

A 34 g glass thermometer reads 21.6°C before it is placed in 135 mL of water. When the water and thermometer come to equilibrium, the thermometer reads 38.7°C. What was the original temperature of the water? I need help on this please could someone please help out.Thank you...

*April 25, 2012 by Akbar*

**English**

1. I will guide you around today. 2. I will guide you round today. 3. I will guide you about today. ----------------------------- Are they all the same? ======================= Does #1 mean #4, 5, or 6? 4. I will guide you here and there today. 5. I will guide you to many ...

*November 12, 2016 by rfvv*

**Math please help! Im so confused!**

it is estimated that at the turn of the 20th century, one farmer in the U.S could feed 25 people, whereas today, the ratio is about 1 to 130. How many farmers would it take today to feed 2600 people? Please help i don't even know how to do this problem!

*January 9, 2013 by Tina*

**science -need so info.**

Ms. Sue, I have to do a paper on mitigation strategies and solutions. Detailed description of the problem. Nonliving and living factors that contribute to or are affected by the problem positive or negative human impacts evaluation of current sustainability Benefits and ...

*August 9, 2008 by rose (Ms. sue)*

**SCIENCE**

I have 2 questions that I need help with please. 1.What are the three parts of the law of conservation of mass/matter? Do not need the definition but the 3 laws please. 2. How are velocity, speed, and acceleration related? I know how they are different only. Thank you

*November 29, 2012 by QUICK PLEASE HELP*

**Algebra**

I am so confused with some word problems math is not my strong point here is the problem if you know how to solve it please tell me how to solve but just don't give me the answer Austin has 42 paperback books that are either Mysteries or science fiction. If he has 16 more ...

*August 23, 2005 by danielle*

**chem**

Can someone please help me with the following questions? 1:Suppose you were given an ancient wooden box. If you analyze the box for carbon-14 activity and find that it is 50% of that of a new piece of wood of the same size, how old is the wood in the box? 2:How old is an ...

*January 2, 2007 by Margaret*

**science, chemistry, biotechnology**

"You're creating a standard curve for pyruvate. You need to create a standard with 20 micromoles in a cuvette. How much 100 mM pyruvate would you need?" My understanding is to solve for VOLUME using the equation: micromoles = (mM)(volume in ml) 20 micromoles = (100mM)(x) Solve...

*October 1, 2014 by Jennifer*

**>science/research<**

hi i need a few websites where i can find information that can help me prove that the animals that existed in the past were far more dangerous anddifferent than the animals of today

*April 13, 2008 by Markeda*

**Math**

*Ms. Sue or Reed, please check my other question as well if you have time, thank you :) 1. Which sentence has proper subject-verb agreement? A) Even my cousin Steve feel sad today. B) Even my cousin Steve look sad today. C) Even my cousin Steve feels sad today. D) Even my ...

*April 21, 2016 by Tim*

**Computer Science**

Help me please! I need help with Floating Point Notation when converting biary and regular numbers! Please. I just need some help and would appreciate it greatly. Also instant message me at TRbal10. Thank you

*October 14, 2007 by Tiler*

**the big idea of energy KS3**

what is the big idea of energy? To A. Einstein, it was that Energy and Mass are equivalent, and that the sum total of both, with a factor called entropy, is constant in the universe. what is the big idea of energy i need help on finding out what the big idea of energy is? ...

*October 22, 2006 by blue babe*

**My First Quarter Grades (PLEASE READ!!!!)**

What is my grades for the first quarter? I didn't get my report card because my parents didn't go to the parents teacher conference so yeah but today my guides counselor show it to me (my grades for the first quarter) they didn't calculated my average. Here are my grades: ...

*November 18, 2011 by Laruen*

**chem**

1. A single mole of AgNo3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNo3 would need to be dissolved in 5oomL? How many moles do you need? moles = M x L. please help today

*December 1, 2010 by moon*

**Math**

solve the equation: 1/3+5/27=4/9-8m-2/3+9m+2/27 please please please i need help on thissss!!!!!! =D <3 Marcie

*January 12, 2011 by Marcie <3s Jeffrey*

**General**

This is a question to everybody: I was just wondering if anyone had any science related questions or things they wonder about that may require experiments. If you have any ideas please mention them. I need this for a science for a science fair project and have at most a 6 ...

*September 6, 2012 by Samantha*

**Physics Drwls**

I was wanting help with my physics post and since no one replied I thought there wasn't a physics tutor on Jiskha, but came back on today cause I really need to get a hang of my physics stuff and luckily seen you Drwls. A bike rider approachea a hill with a speed of 8.5m/s. ...

*November 22, 2011 by Fizzylicous*

**English - Classics**

I've been writing a personal response on the Great Gatsby and need some specific examples of how my idea "Money does not equal happiness" or "Money corrupts" is relevant to today/today's society

*November 6, 2012 by Ebug*