Saturday

February 13, 2016
Number of results: 12,677

**Astronomy Grade 9( PLEASEEE HELP!!!!!!!!!!!!!!)**

What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?
*November 29, 2012 by Curly Sue*

**astronomy**

what good has astronomy produced?
*September 5, 2011 by Varia*

**astronomy**

Two stars in a binary system are determined from their position on the H-R diagram and the mass-luminiosity relation to have a combined mass of 8 M. Their orbital period, P, is 1 year. What is their orbital seperation, a? http://en.wikibooks.org/wiki/Astronomy/Mass
*April 27, 2007 by Sethi*

**Astronomy Grade 9**

What hazards do humans face when they are in space and what technologies have been developed in response to these hazards?
*November 29, 2012 by Curly Sue*

**earth**

If the Earth has so much mass, then how does it "float"? (My 8th grade Astronomy class trying to figure this out. -Lauren
*September 29, 2010 by Lauren*

**Astronomy**

Few question about astronomy: 1.how many centimetres is equivalent to a light-nanosecond 2. How long is an astronomical unit (AU) in light-minutes (1min, i.e., the distance that light travels in a vacuum in one minute)? Please show the calculation if there is any Thanks
*September 13, 2011 by KD*

**ALGEBRA I HELP PLEASEEE!!!!**

(39w+ 14 + 10w squared) / 72+ w =]
*April 22, 2008 by Amber =]*

**Math**

f(x)=1/x, g(x)=3X+1 find: f(g(3)) how do i do thiss... f(g(-2)) g.g, g.f, f.g, pleaseee help:)thanks for your timeee
*December 15, 2008 by Kennedy*

**Math**

f(x)=x/x^2 x find limit??? Pleaseee thnks
*January 30, 2012 by Anonymous*

**astronomy**

what are the contributions of astronomy?
*August 29, 2011 by Varia*

**astronomy**

what is the meaning of astronomy?
*August 28, 2011 by Anonymous*

**CHEMISTRY HELP**

IF ANYONE CAN HELP ME WITH MY HOMEWORK AND EXPLAIN EXACTLY HOW TO GET THE ANSWERSSS PLEASEEE HELP
*May 7, 2008 by katie*

**mathh help pleaseee (: ! <345**

sqrt32x + 3sqrt8x help please !
*December 10, 2008 by margie (:*

**calculus**

Solve the equation for x. e^ax=Ce^bx, where a cannot equal b Can someone explain this pleaseee!
*September 23, 2008 by Sarah*

**Calculus**

If x + 7y = 29 is an equation of the line normal to the graph of f at the point (1,4), then f'(1) = PLEASEEE HELP!
*December 2, 2008 by Nina*

**grammar**

can someone proofread my homework? is just 5 pages.pleaseee is urgent
*October 16, 2009 by ana*

**Chemistry**

DrBob222 please help me answer the question that I posted pleaseee, pleaseeee
*February 16, 2010 by Jennifer*

**helppp pleaseee**

How many days on average can you survive without food or H20?
*May 7, 2012 by cORY*

**simple easy math question PLEASEEE HELPP!!!**

is this true? log^2 x = (logx)^2
*January 6, 2011 by Sabrina*

**math**

7x-3y+4z=18 13x+6y+8z=30 11x-9y-12z=16 Find x,y,z please show the solution pleaseee
*October 4, 2015 by Jean*

**Math**

Find all x, -4pi < x < 6pi, such that [cos(x/3)]^4 + [sin(x/3)]^4 = 1 PLEASEEE HELPP! :(
*May 27, 2008 by Megan*

**world cultures**

i need help on knowing that the cultural changes between Umayyad and Abbasid. pleaseee! thank you
*March 5, 2012 by lauren*

**science **

If Deneb and Rigel were located at alpha Centauri's distance from earth, how would they appear? PLEASEEE HELPPPPPP!!!!!!!!!!
*March 21, 2012 by Paula*

**PHYSICAL SCIENCES**

Which of the following elements has eight valence electrons? A. argon B. beryllium C. chromium D. oxygen . CAN SOMEONE HELP ME, PLEASEEE :D
*May 23, 2012 by lalt*

**Physicss**

Fast pleaseee Calculate speed of a 50 kg boy travelling on his bike his kinetic e is 1250 J I did v= 2KE/m i got 50? Help
*June 20, 2013 by Katherine :))*

**Gr.12 ENGLISH**

what are some major themes in the short story "The Storyteller" by H.H Munro(also known by pen name Saki) pleaseee help thanx :)
*October 30, 2010 by niini*

**science -- urgent**

can you pleaseee list all the things that Earth needs to provide us with life?? like energy, carbon, and so on.. THANKS A LOT!
*May 22, 2009 by eska*

**physics**

a kangaroo jumps to a vertical height of 2.55m.How long was it in the air before returning to Earth? pleaseee anwser it is due in 1 day!!!!
*July 20, 2008 by anthony*

**mathh help pleaseee (: ! <345**

the sales tax rate in a certain state is 5% find the total price paid for a apair of shoes that cost $47
*January 7, 2009 by Mary*

**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 ...
*May 18, 2012 by jermaine*

**math log PLEAseee helpp pretty please!!!**

determine the point of intersection y=logbase 10(x-2) and y=1-logbase 10(x+1)
*January 20, 2011 by Sabrina*

**world histor**

what are three major events, ideas, or poicies that contributed to the end of the soviet Union? including something about easern europe! help pleaseee!!
*January 11, 2011 by billy*

**math!! help pleaseee**

5: 2 = 8 : 10 please explain to me how to do thissss :( im so lost and i have to one to turn to or any math books or anything.
*January 6, 2009 by eddie*

**math**

Helppp me! Need this in about 10 min. earlier the better!!!! pleaseee:) anyways... neg. 9/10 plus neg. 1/6 =?
*November 5, 2009 by Tay*

** PLEASEEE GEOMETRY **

POINT H,I,J AND THREE POINTS ON A LINE W/ COORDINATE -4/5 , -1/SQRT5 AND -1/10. WHICH POINT BETWEEN THE OTHER TWO ?
*June 12, 2013 by ANGEL *

**math**

PLEASEEE HELPPP Evaluate exact values, if they exist? if any doesn't exist state so. a) (in randians) sin^-1(-1/√2)
*December 21, 2013 by Bobby*

**social studies**

i need a map of washington state that has the major cities physical features and the borders of washington and boundries pleaseee !!!!!!!!!!!!!!!
*January 22, 2009 by irianhhha*

**math**

write a four equations in slope-intercept form of four different lines that are parallel and graph the line ?? HELP pleaseee!! thank you
*March 13, 2015 by may*

**chemistry**

The reaction equation below shows the formation of aluminum oxide. Which set of coefficients balances the equation? Al + O2 ?Al2O3 A. 1,1,1 B. 2,3,5 C. 2,4,5 D. 4,3,2 . can someone help me pleaseee!!
*May 28, 2012 by lalt*

**Math**

What is neg. 9/10 + neg. 1/6? Pleaseee help im stuck:/
*November 5, 2009 by Tay*

**10th grade**

The ultimate task of all the explorations launched by the Europeans from the fourteenth century onward was? A. finding a sea link between Europe and the wealthy civilizations of Asia. B. establishing European political dominion over all of Asia. C. perfecting European ...
*March 23, 2010 by Rosh *

**Math Lit **

In a school there are 122 grade 8s, 105 grade 9s, 134 grade 10s, 109 grade 11s, 90 grade 12s. Express Each Class as a percentage of the whole school.
*February 5, 2012 by Thabo*

**pre calc**

how do uu find the x int. , y int. , domain range asytote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!!
*February 12, 2013 by kikii*

**Choosing High School Courses**

I want to major in something English or History related, probably Secondary Education, International Studies, or Journalism. I am currently enrolled in chemistry and I am doing horribly. Would colleges rather see me take chemistry and get a bad grade, or would they prefer me ...
*February 23, 2009 by Corinne*

**Astronomy**

Need some help with Astronomy. I need to figure out the acceleration of gravity on the surface of certain planets. For example, I need to find the acceleration of gravity on Mars when the mass is .11 times the mass of Earth and the radius is .53 times the radius of Earth. ...
*October 26, 2008 by TAG*

**english**

- 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 - ...
*January 8, 2010 by peter*

**physics/algebra HELP!!!!**

i am having so much trouble rearranging these equations! i know the answers to them but i don't understand how to get them.. The original equation is W= Q(B-C)/C what is B? what is Q? What is C? B is supposed to be C(W+Q)/Q Q is supposed to be WC/(B-C) and C is supposed to be ...
*October 9, 2008 by Ned*

**Physics help pleaseee**

A cable with 21.2 N of tension pulls straight up on a 1.10 kg block that is initially at rest. What is the block's speed (in m/s) after being lifted 2.42 m assuming that the local acceleration due to gravity is 9.80 m/s2?
*November 9, 2011 by Me*

**History Please Please**

Could you please explain to me: how was the structure (Collosus of Rhodes) effective for it's stated purpose? I don't understand the question and I need something for my project. Pleaseee.
*October 23, 2011 by Jack*

**astronomy**

Even though I do not believe the Big Bang is what created the universe(although what people clam the bing bang was would have been similar to what happened when God said "Let there be light" I still have astronomy hw. haha. I am having trouble with this question. The big bang ...
*April 5, 2015 by sara*

**MATH**

there are 400 students at smith Elementary school 1/4 of the students are in fourth and fifth grade, 1/10 of the students are in grade 3, 2/8 are in second grade and 2/5 are in first grade . How many kids are in each grade? (4th and 5th have an equal amount)
*March 24, 2014 by MANISH*

**math**

I have a question I would really appreciate the answer. If 15% of my grade is 74% and 96 is 15% of my grade and 40% of my grade is a 60.5% without the final counting for 30% what is my grade? Please help thank you.
*June 26, 2015 by kim*

**pre-calculus**

how do uu find the x int. , y int. , domain range asymtote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!! No one has answered this question yet.
*February 13, 2013 by kikii*

**pre calc**

how do uu find the x int. , y int. , domain range asytote of this equation y=log to the base 10 (2x+3/x-5) pleaseee need to understand before the test tmr!!!! No one has answered this question yet.
*February 13, 2013 by kikii*

**Math - average grade**

Does anyone know how to calculate average point grade? I have the following data: grade D - 2 students - 4,9 percent grade C - 6 students - 14,7 percent grade B - 12 students - 29,2 percent grade A - 21 students - 51,2 percent What is the average grade? This is NOT my homework...
*February 17, 2010 by refy*

**algebra **

An A is considered 4.0, a B is 3.0, a C is 2.0, a D is 1.0, and an F is 0. In your first semester you received the following grades. Calculate your grade point average English = credits 3.0 Grade = C Biology = credits 4.0 Grade = B Communications = credits 3.0 Grade...
*September 22, 2015 by Kristen*

**science**

I have to find out some facts about the dwarf planet vulcan. I have tried wikipedia but it was no help. Can any one please give me some facts or websites that can. This may be what you need. http://www.space.com/scienceastronomy/astronomy/epsilon_vulcan_000804.html
*February 9, 2007 by liza*

**english**

which is not an example of an idiom found in "Miss Rosie"? a. "when I watch you" b. "[you] used to be called" c. "waiting for your mind" d. "I stand up" i remember asking this before a long time ago...i think someone siad both a and b are correct, but that can't be. there has ...
*July 1, 2009 by y912f*

**11th grade**

The students of litchfield High school are in grades 9,10,11,12. Of the students , 1/4th are in 9th grade, 1/3rd are in 10th grade, 1/6th is in 11th grade and there are 300 in the 12th grade, how many students are there all together?
*November 6, 2009 by stefanie coplin*

**ELECTRICITY AND MAGNETISM**

a dust particle with mass =5.0*10-9 kg and charge q =2.0nC starts from rest at point a and moves in a straight line from a to the point b ! what is its speed V at point b? please some on SOLVE it and send me ON my emial after got solved pleaseee ?
*October 29, 2011 by sufyan khalil*

**Physics HELPPP PLEASEEE**

A 0.60 kg sphere rotates around a vertical shaft supported by two strings, as shown. If the tension in the upper string is 18 N. Calculate the tension in the lower string? the rotation rate (in rev/min) of the system?
*May 19, 2013 by Joeline*

**astronomy**

Why is the sky blue?
*January 21, 2008 by Belinda*

**Astronomy**

What is the radius of the sun?
*December 3, 2012 by jane*

**Astronomy**

The saros cycle
*June 11, 2013 by Terrance*

**math**

Riding on a school bus are 20 students in 9th grade, 10 in 10th grade, 9 in 11th grade, and 7 in 12th grade. Approximately what percentage of the students on the bus are in 9th grade?
*October 6, 2014 by jenna*

**Chemistry 2 Ap**

Can someone please help me ? What mass of glycerol must be dissolved in 200.0 g of water to give a solution with a freezing point of -1.50? im not sure how to even start this problem. I think i would find the moles in water first, then the grams in glycerol after? Pleaseee help!
*February 10, 2009 by jecce.*

**statistics**

The grades on the final examination given in a large organic chemistry class are normally distributed with a mean of 72 and a standard deviation of 8. The instructor of this class wants to assign an A grade to the top 10% of the scores, a B grade to the next 10% of the ...
*March 24, 2013 by Sarah*

**Astronomy**

What is the phenomenon of differentiation and how does it occurs
*November 5, 2008 by Mike*

**Astronomy**

Why are there different types of galaxies?
*July 20, 2010 by Magesh*

**astronomy**

How long is the precession cycle?
*August 29, 2010 by Anonymous*

**Astronomy**

What type of spectrum is sunlight?
*February 18, 2014 by Barbara*

**Astronomy**

The precession of the Earth its causes, and its ramifications
*March 27, 2010 by b*

**astronomy**

What does supernova produce, helium or carbon?
*April 29, 2010 by Anonymous*

**astronomy**

What does supernova produce, helium or carbon?
*April 29, 2010 by Anonymous*

**Astronomy**

What is the Lorentz factor for a spaceship traveling at 0.5c?
*March 4, 2012 by Linda*

**Astronomy**

what are the largest stars in the HR diagram called?
*March 13, 2012 by Hannah*

**astronomy**

big bang theory define
*July 15, 2012 by Luis*

**Astronomy**

How to find the orbital radius of a planet?
*December 12, 2012 by Jola*

**astronomy**

which of the statment about CMB are true?
*October 7, 2013 by Bela*

**Astronomy HELP **

when does a full moon rise and set?
*January 7, 2014 by Mary Ann*

**classroom instruction**

Search the Internet to locate and review your states educational standards for a grade level and subject that interests you, such as second-grade language arts or fifth-grade science. i need help finding information on the state of wisconsin and 1st grade P.E.
*February 18, 2010 by scooby*

**appling middle**

If the data were displayed in a circle graph, what percent of the graph would represent the seventh grade? Enrollment is Sixth grade 64, Seventh grade 64, and Eighth grade is 70
*March 10, 2011 by ry*

**Math 157-1**

Use the data in the grade-distribution Use the data in the grade-distribution table below to construct a circle graph showing the distribution of grade types in Ikes class. Grade Frequency A 2 B 8 C 11 D 2 F 1 How would the graph change if there were twice as many of each grade?
*March 19, 2010 by Tyga*

**astronomy**

why does Venus have such a high Albedo
*November 6, 2008 by Mike*

**astronomy**

on which planets would you weih more than on the earth?
*April 11, 2009 by joe*

**Astronomy**

Venus orbits 0.72 AU from the sun. What is that distance in kilometers?
*September 6, 2010 by Meliset*

**Astronomy**

Venus orbits 0.72 AU from the sun. What is that distance in kilometers?
*September 7, 2010 by Meliset*

**Astronomy**

Explain what occurs during tidal friction?
*October 3, 2011 by Rebecca*

**Astronomy**

How many degrees of longitude does the Sun move in each hour?
*November 2, 2011 by James*

**ASTRONOMY**

Compare Einstein and Newton's pictures of gravity.
*December 19, 2011 by Kate*

**AStrONomY**

What contributions of Uranus were made by the Voyager 2 program?
*February 27, 2012 by CHEYANNE*

**Astronomy**

The frequency of a radio transmitter is 90 megahertz. What is its wavelength?
*March 4, 2012 by Linda*

**Astronomy**

Why is it possible to see Mercury at 6:45 pm on February 5, 2014?
*February 16, 2014 by Carol *

**Astronomy**

How far will Venus be from Earth on February 19, 2014?
*February 17, 2014 by Carol *

**astronomy**

If the planet is in an edge-on orbit, what would its mass be (in kg)?
*June 25, 2014 by keitanako*

**math**

The function rule C=10n +26 relates the number of people n who attend a small concert to the cost in dollars c of the concert.. Make a table of the input.output pairs to show the cost if 27, 39, and 43 people attend. Help me pleaseee!!!! :( <3
*June 5, 2014 by Jamanonymous*

**math URGENT**

okay i need to find the domain and range of this z(x) = x^2 - 100 (everything is in the square root) so i think i found the domain i got [-10,10] but i dont know about the range i solved for x and got stuck here x=y^2 + 100 helppp pleaseee :)
*October 29, 2009 by lyne*

**Math**

Kayla has a 41% grade average. Then sha takes an exam that is for 20% of her grade and gets an 100%. What is her grade now?
*May 25, 2011 by Ashley*

**Pre algebra**

Kayla has a 41% grade average. On an exam that is worth 20% of her grade she gets a 100%. What is her grade now?
*May 25, 2011 by Ashley*

**Astronomy**

Describe in one sentence the rotations and revolutions of the planets.
*November 23, 2007 by Liz*