Questions Asked on
September 6, 2010

Chemistry
A small hole in the wing of a space shuttle requires a 12.8cm^2 patch. What is the patch's area in square kilometers (km^2)? if the patching material costs NASA 3.21/in^2, what is the cost of the patch?
asked by Lanise 
Chemistry
A 2.52g sample of a compound containing only carbon, hydrogen, nitrogen, oxygen, and sulfur was burned in excess O to yield 4.36g of CO2 and 0.892g of H20. Another sample of the same compound of mass 4.14g, yielded g of SO3. A third sample, of mass, 5.66g,
asked by Christina 
geometry
line JK bisects LM at point J. Find JM if LJ=23 centimeters.
asked by samantha nicole 
chemistry
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid? (Assume water has a density of
asked by Jack 
chemistry
write the net ionic equation for the following : 2CuCl(aq)> CuCl2(aq)+ Cu(s) 4NaCl(aq)+2H2SO4(aq)+MnO2(s)> 2Na2SO4(aq)+2H2O(l)+Cl2(g) 3KOH(aq)+Fe(NO3)3(aq)>Fe(OH)3(s)+ 3KNO3(aq)
asked by Joseph 
Physics
Vector A is directed along the positive yaxis and has a magnitude of sqrt 3.0 units. Vector B is directed along the negative xaxis and has magnitude 1.0 units. What are the magnitude and direction of A + B?
asked by Dakota 
Organic Chemistry
Why does the loss of a proton from cyanic acid yield the same anion as that obtained by the loss of a proton from isocyanic acid?
asked by Shell 
English Literature
Question: Explain why Beowulf is an epic poem and why Beowulf is an epic hero This is what i have: Beowulf is a national epic or a long narrative poem. It involves a hero, Beowulf, who is larger than life. The poem concerns eternal serious human problems.
asked by Brittany 
Physics
A record for a marathon is 2.00h, 9.00min, 21.0 sec. If the average speed of a runner achieving this record is 5.436 m/s, what is the marathon distance? Answers: 15,878 km 7,761 km 42.2 km 26.2 km We're omnly two days into the new school year and I don't
asked by JulieAnne 
Astronomy
Venus orbits 0.72 AU from the sun. What is that distance in kilometers?
asked by Meliset 
geometry+algebra
If AD = 20 and AC = 3x + 4, find the value of x. Then find AC and DC
asked by Michael 
Chemistry
1. You have gone back in time and are working with Dalton on a table of relative masses. Following are his data: 0.602g gas A reacts with 0.295g gas B 0.172g gas B reacts with 0.401g gas C 0.320g gas A reacts with 0.374g gas C a) Assuming simplest formulas
asked by samuel 
College English
I have been pouring over this all day and would appreciate if someone could look this over for me with some good news... am I getting it? Gracias! >> represents my chosen answer. 1. Having studied small engine repair in night school, fixing the lawn mower
asked by Corey 
physics
The speed limit in a school zone is 38 km/h. A driver traveling at this speed sees a child run onto the road 16 m ahead of his car. He applies the brakes, and the car decelerates at a uniform rate of 8.5 m/s2. If the driver's reaction time is 0.55 s, What
asked by emma 
Physics
Sanding block weighs 2.0 N and is pushed with a force of 3.0 N at an angle of 30.0 degrees with respect to the vertical, and angled toward the wall. Moves straight up the wall at a constant speed. What is the coefficient of kinetic friction between the
asked by Tammy 
college physical science
how much would a 80.0kg person weigh on mars if the acceleration of gravity is 3.93m/s2
asked by Richard 
Physics
a plane has an airspeed of 200 mph. the pilot wants to reach a destination 600 miles east but a wind is blowing 50 mph 30 degrees North of East. What direction must the pilot head the plane in order to reach the destination? I asked my Lab T.A. and she
asked by Alura 
Physics II
A man weighs 0.80 kN on Earth. What is his mass in kilograms?
asked by Dakota 
physics
How much work does the electric field do in moving a proton from a point with a potential of +120 V to a point where it is 60 V? Express your answer in joules. I've looked through my notes, and I'm sure the answer is really easy, but I'm not seeing it. I
asked by Morgan 
physics
The 454590 triangular prism shown in the figure has an index of refraction of 1.44, and is surrounded by air. A ray of light is incident on the left face at an angle of 46.0°. The point of incidence is high enough that the refracted ray hits the
asked by RChanel 
algebra
3 times the difference of 7 and d
asked by mike 
physics
A car starts from rest and travels for 4.9 s with a uniform acceleration of +1.8 m/s2. The driver then applies the brakes, causing a uniform acceleration of 1.7 m/s2. The breaks are applied for 1.50 s. 1) How fast is the car going at the end of the
asked by Taylor 
World Studies
What is the region of North America where the vikings landed?
asked by Karen 
Math  Equations of plane(check)
Consider the plane that contains points A(2,3,1), B(11,1,2), C(7,3,6). a) Find two vectors that are parallel to the plane. Ans: AC, BC or AB will be parallel to the plane. b) Find two vectors that are perpendicular to the plane. Ans: if i find the
asked by Shaila 
physics
A rocket is fired vertically up from the ground with a resultant vertical acceleration of (a) what is the maximum height reached? (b) After how much time from then will the maximum height be reached?(take g=10m/s2
asked by sachin 
chemistry
A sample of 7.83 grams of NaOH is dissolved into 620 mL of aqueous 0.250 M NaOH (as sume no volume change). This solution is then poured into 1.67 gallons of water. (You may assume that the two volumes can be added.) What is the concentration of NaOH in
asked by Anonymous 
Algebra 2
The measures of an angle and its complement differ by 22 degrees. What are the measures of the angles?
asked by Kathy 
physics
A quarterback is asked to throw a football to a receiver that is 32.1 m away. What is the minimum speed that the football must have when it leaves the quarterback's hand? Ignore air resistance. Assume the ball is caught at the same height as it is thrown.
asked by tommy 
physics
The force exerted by the wind on the sails of a sailboat is 370 N north. The water exerts a force of 210 N east. If the boat (including its crew) has a mass of 270 kg, what are the magnitude and direction of its acceleration?
asked by tommy 
STATISTICS
PERFORM THE INDICATED CALCULATIONS 5P2/12P4
asked by Anonymous 
chemistry
the density of a certain aqueous solution is 1.17g/ml, and the solution is 3.57% by mass NaOH. how many mL of this solution would you need to use in order to prepare 100.0 mL of .150 M NaOH solution?
asked by zahra 
physics
a 650 lb box is hanging by means of two ropes attached to a ceiling as shown by diagram below find the tension on the ropes
asked by catherine 
Biology
In pine, both the staminate and ovulate cones occur on the same tree, but not on the same branch. The ovulate cones are usually at the top of the trees, so that pollen from their own tree will not fall onto and fertilize the eggs. Why would this be an
asked by Anonymous 
math
how many square yards of carpeting are needed for a room that measures 12.5 ft by 18.25 ft
asked by Anonymous 
calculus
Lim sin2h sin3h / h^2 h>0 how would you do this ?? i got 6 as the answer, just want to make sure it's right. and i couldn't get this one (use theorem 2) lim tanx/x x>0 and also this one (use squeeze theorem to evaluate the limit) lim (x1)sin Pi/x1
asked by Jake 
Biology
What is the advantage of producing single sex gametophytes (heterospory) and what is the advantage of producing a bisexual gametophyte (homospory)?
asked by Candice 
English Literature
Dicuss three examples of the AngloSaxon belief in fate as shown in beowulf.
asked by Brittany 
physics
A person looking out the window of a stationary train notices that raindrops are falling vertically down at a speed of 6.6 m/s relative to the ground. When the train moves at a constant velocity, the raindrops make an angle of θ = 36° when they move past
asked by demi 
college physical science
how much would a 80.0kg person weigh on earth where the acceleration of gravity is 1.63m/s2
asked by Richard 
physics
A car is traveling at 28 m/s when the driver spots a large pothole in the road a distance 37 m ahead. She immediately applies her brakes. If her acceleration is 7.8 m/s2, does she manage to stop before reaching the pothole? What is this stopping distance?
asked by bill 
chemistry
iron 3 oxide reacts with carbon monoxide according to the following equation: fe2O3+3Co>2Fe+3Co2 a) how many moles of ions are produced when one mole of iron 3 oxide reacts b) calculate the volume of carbondioxide produced when one mole of iron 3
asked by honeybee 
physics
a kicker kicks a football from the 5 yard line to the 45 yd line ( on the same half of the field). Ignoring air resistance, where along the trajectory is the speed of the football a minimum. what formuls is used and show work a) at the 5 yd line, just
asked by Alli 
chemistry
The density of air is 1.25 gram per liter determine the volume percentage of oxygen in the air at 1 atmospheric pressure and 27 degree celcius temprature? Assume air is a mixture of nitrogen and oxygen.
asked by Neha ghatia 
physics
A quarterback is asked to throw a football to a receiver that is 32.1 m away. What is the minimum speed that the football must have when it leaves the quarterback's hand?
asked by tommy 
Physics
A rocket is launched at an angle of 42◦ above the horizontal with an initial speed of 76 m/s. It moves for 9 s along its initial line of motion with an acceleration of 29 m/s^2. At this time its engines fail and the rocket proceeds to move as a
asked by John 
physics
Consider a rock that is thrown off a bridge of height 27 m at an angle θ = 24° with respect to the horizontal as shown in the figure above. If the initial speed the rock is thrown is 12 m/s, find the following quantities: (a) The time it takes the rock
asked by frank 
9th grade
I need help with my math homework
asked by Kvon 
Chemistry
Phosphate standards used to generate the calibration curve are usually made by first preparing a stock solution of known concentration, then diluting it to the required concentration. First prepare a stock solution that is 1.00 x 102 M in phosphate ion.
asked by Khaalid 
Math  intersection of planes
You are given the following two planes: x+4y3z12=0 x+6y2z22=0 a) Determine if the planes are parallel b) Fine the line of intersection of the two
asked by Shaila 
poetry
What is the Cause and Effect of the Poem Lineage by Margaret Walker?
asked by Katty 
chem
If this sample of dry ice were to be placed in an evacuated 1.0 L container and allowed to come to room temperature (25 oC), what would the pressure be?
asked by dan 
physics
Vector has a magnitude of 8.80 units and makes an angle of 43.0° counterclockwise from the positive xaxis. Vector has a magnitude of 8.00 units and is directed along the negative xaxis
asked by BC 
chemistry
An unknown quantity of gas at a pressure of 121.59 kPa, a volume of 31 L, and a temperature of 360 K contains how many moles of gas? Round to the nearest hundredth. Don't forget the units.
asked by janay 
Grammar
(Check these please)Identify these sentences as compound, simple or runon sentences. 5. Percy Shelley traveled in Europe and visited friends.(simple) 6. Shelley made friends with other poets; John Keats was Shelley's friend.(compound) 7. William Godwin
asked by Tiffany 
English
Can you please tell me if the following sentences are correct? They all refer to Shakespeare's The Merchant of Venice. Thank you. 1) The man who marries Portia will be the one who chooses the correct casket. 2) Shylock is notorious for charging very high
asked by Franco 
Physics
A fireman, 45.1 m away from a burning building, directs a stream jet of water from a ground level fire hose at an angle of 34.1 degrees above the horizontal. The acceleration of gravity is 9.8 m/s^2. If the speed of the stream as it leaves the hose is 58.8
asked by John 
chemistry
Which of the following properties is a chemical property of phosphorus? Answer a) it burns in air b) it is a white waxy solid c) it melts to form a viscous liquid at 44.1 oC d) Both a and c are both examples of chemical properties. e) a, b, and c are
asked by Jack 
physics
A model rocket is launched straight upward with an initial speed of 60.0 m/s. It accelerates with a constant upward acceleration of 2.00 m/s2 until its engines stop at an altitude of 130 m. (a) What is the maximum height reached by the rocket? m (b) How
asked by frank 
Physics
A fighter, traveling at 474 m/s fires a bullet perpendicular to its flight path. The muzzle velocity of the bullet is 515 m/s. At what angle to its intended path does the bullet actually travel? Answer between âˆ’180â—¦ and +180â—¦. Answer in
asked by laura 
chemistry
Naturally occuring chlorine gas has 3 isotopes 35cl35cl, 35cl37cl , 37cl37cl a) mass of one molecule in terms of amu. b) mass of one molecule in terms of grams. c) mass of one mole in terms of grams. d) Naturally occuring Cl has 75% 35cl and 25% 37cl,
asked by Jake 
Chemistry
A student adds 4.00g dry ice(Co2(s)) to an empty balloon after the dry ice sublimes and comes to STP?
asked by Suzan 
Physics
A plane drops a hamper of medical supplies from a height of 5210 m during a practice run over the ocean. The plane’s horizontal velocity was 133 m/s at the instant the hamper was dropped. The acceleration of gravity is 9.8 m/s^2. What is the magnitude of
asked by John 
begining algebra
translate into a variable expression.then simplify the expression.the sum of a number y divided by four and the number.
asked by roxann 
Physics
Sorry, I asked this question earlier but I didn't clarify it well: A plane drops a hamper of medical supplies from a height of 5210 m during a practice run over the ocean. The plane’s horizontal velocity was 133 m/s at the instant the hamper was dropped.
asked by John 
English Literature
This is the question:Disucuss three examples of the anglosaxon belief in fate as shown in Beowulf. This is what i have The anglo saxons believe that fate is the grim view of life. You have no comtrol over life or destiny. Fate is the source that
asked by Brittany 
Finance
9. The variable (A) in the utility formula represents the: a. investor’s return requirement. b. investor’s aversion to risk. c. certainty equivalent rate of the portfolio. d. preference for one unit of return per four units of risk.
asked by Anonymous 
science
Balance in acid solution PH3+ I2> H3PO4+ I
asked by Joseph 
civics
why did our founding fathers choose democracy over the other governments?
asked by jenny washington 
Geometry
Suppose J is between H and K. Use the Segment Addition Postulate to solve or x. Then find the length of each segment. HJ= 2x+1/3 JK= 5x+2/3 KH= 12x4
asked by Thea 
physics
A foam cube bounces to a height of 15cm when dropped from a height of 100cm. To what height will it bounce if dropped from a height of 2.5cm? How do
asked by joe 
physics
A flask has a mass of 78.23 g when empty and 593.63 g when filled with water. When the same flask is filled with concentrated sulfuric acid, H2SO4, its mass is 1026.57 g. What is the density of concentrated sulfuric acid? (Assume water has a density of
asked by Jack 
Physics
sorry to repost (again) but I'm not understanding how to solve this: A rocket is launched at an angle of 42◦ above the horizontal with an initial speed of 76 m/s. It moves for 9 s along its initial line of motion with an acceleration of 29 m/s^2. At this
asked by John 
Health
Why are all parts of your health equally important
asked by Brandon 
Physics
When James applied the brakes to his car, it slows unifromly from 15.0 m/s to 0.0 m/s in 2.50 s. How many meters before a stop sign must she apply her brakes in order to stop at the sign? Answers: 6.0m 37.5 m 18.8 m 48.0m Please helpI've just started
asked by Ian 
Physics
sorry to keep posting this, but I have an assignment based on these problems (same equations different numbers) due in a couple hours. A rocket is launched at an angle of 42◦ above the horizontal with an initial speed of 76 m/s. It moves for 9 s along
asked by John 
u.s. history
what body has the power to accept or reject a president's nominations to the supreme court?
asked by partha 
physics
a rock is thrown horizontally with a speed of 17 m/s from a vertical cliff of height 34 m. A I solved for t=2.63 BHow far will it land from the base of the cliff? im using x=xo+vox*t i get 6.46 and it is wrong. What am I doing wrong? CWhat is the
asked by tommy 
Physics
A particle moves in the xy plane with constant acceleration. At time zero, the particle is at x = 4.5 m, y = 6.5 m, and has velocity v(naught) = (6.5 m/s)ihat + (−2.5 m/s)jhat (arrow for v(naught) points toward positive x direction). The acceleration
asked by John 
Math
Directions: Use each statement as givena and draw a single conclusion using all of the statements. 1) No birds,except ostriches, are nine feet high.There are no birds in this aviary that belong to anyone but me. No ostrich lives on mince pie. I have no
asked by Hannah 
accounting
What are the qualifications for the FASB board members?
asked by Mary 
Physics
A rocket is launched at an angle of 42◦ above the horizontal with an initial speed of 76 m/s. It moves for 9 s along its initial line of motion with an acceleration of 29 m/s^2. At this time its engines fail and the rocket proceeds to move as a
asked by John 
chemistry
Which of the following are solutions? Choose all that apply. (Note: do not pick heterogeneous systems that contain a homogeneous phase.)  Cold coffee or cold tea. Cigarette smoke.  Tap water.  Milk.  Fog.  The air typically found in a room.  Pure
asked by Tiffany 
physics
A model rocket is launched straight upward with an initial speed of 60.0 m/s. It accelerates with a constant upward acceleration of 2.00 m/s2 until its engines stop at an altitude of 130 m. (a) What is the maximum height reached by the rocket? Your
asked by jim 
Math
A commission of $1,000 is to be divided between two people in a 3:5 ratio. How much should each person receive?
asked by Capiche 
physics
A SUBWAY TRAIN IS MOVING WITH A CONSTANT VELOCITY ALONG A LEVEL SECTION OF THE TRACK. THE NET FORCE ON THE FIRST SUBWAY CAR IS ________ THE NET FORCE ON THE LAST SUBWAY CAR.
asked by alicia 
English lit.
Discuss history of the english language referring to major language families, branches,periods,changes, etc
asked by Brittany 
English
Posted by rfvv on Wednesday, September 1, 2010 at 12:53am. He is standing still. (Is 'still' an adjective or an adverb?) English  karla, Wednesday, September 1, 2010 at 12:55am Is it modifying a noun(adjective) or a verb(adverb)? English  Writeacher,
asked by rfvv 
chemistry
Help with Beer's Law lab experiment question! So we were told to calculate the concentration of 5 standard solutions but I don't know how to do that exactly. The Concentration of the solution in flask B was .0024 M and our lambda max (max absorption) was
asked by Anonymous 
Math(Please check)
Sorry I forgot a question. 2) rationalize the denominator. 4/sqrt6 My answer is 4sqrt6/ 6 Am I correct?
asked by Hannah 
science
Marlene's car won't start. She wonders if she is out of gas. She checks the gas gauge and sees that the car has gas. Then she wonders if the battery is dead. She checks the battery and discovers that it is dead. Marlene conclude that her car battery is
asked by ant 
Mayans and aztecs
Where can I find iinformation about the similarities and differences of the culture and life of the Mayans and Aztecs?
asked by betty 
statistics
the amount of time spent in North American adults watching television per day is normal distributed with a mean of 6 hours and a standard deviation of 1.5 hours
asked by Marcus 
algebra
world grain demand.freeport mcmoran projectsthat in 2010 world grain supply willbe 1.8trillion metric tonsand the supply will be only3/4 world garin demand. what will world grain demand be 2010
asked by mjones 
geometry
measure of angle RST=5(x+1)3
asked by angel 
Geography
Two examples of geopolitics using knowledge on Latin America.
asked by Courtney 
physics
A round ball bounces to 2m after being dropped from an undetermined height. To what height will it bounce if dropped from a height 2.5 times as high? (how do u even calculate this problem?). (or is it just a problem that cant be solved?)
asked by joe 
Physics
sorry to repost (again) but I'm not understanding how to solve this: A rocket is launched at an angle of 42◦ above the horizontal with an initial speed of 76 m/s. It moves for 9 s along its initial line of motion with an acceleration of 29 m/s^2. At this
asked by John 
Math
Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Show your work. Use the resulting ordered pairs to plot the graph. State the equation of the line asymptotic to the
asked by Samantha 
calculus
Can someone please help me find the arc length of this curve? x = 3y^(4/3)  3/32y^(2/3) y is between 64 and 64
asked by Pegs 
Math
If the wind is blowing from the west at 17 knots, what is its speed in miles per hour? In kilometers per hour?
asked by Maria 
algebra
When the quotient of a certain number and 6 is decreased by 14, the result is 4 find the number.
asked by Walter 
Math
Use your protractor to find the measure of the angle to the nearest degree. 1.Angle S Anyone know how am I suppose to find the degree when it only telling me the vertex(S) ?
asked by Shadow 
chemistry
Naturally occuring chlorine gas has 3 isotopes 35cl35cl, 35cl37cl , 37cl37cl a) mass of one molecule in terms of amu. b) mass of one molecule in terms of grams. c) mass of one mole in terms of grams. d) Naturally occuring Cl has 75% 35cl and 25% 37cl,
asked by Jake 
12th grade maths
factorise: 2x^2+6x16, and 14x^23x2. Solve: 6y^25y6=0, and 8x^22x1=0. Rearrange: p=5tu/u to make u the subject, and p(q+r)=(qp). please help i've done about 40 questions and im just stuck on these. thanks for the help
asked by adam 
precal  iterates?
Find the third iterate of the function f(t) = 9t  3 when t0 = 1/3 + i/9.
asked by Anonymous 
physics
The diameter of some celestial body is 3080 km. What is the volume of this body? _____m3 How many of these celestial bodies would be needed to create a volume equal to that of Earth? The radius of the Earth is 6.38 106 m.
asked by Lisa 
geometry
Andelko measured the largest chord on his slice of pizza, and found it was 20 cm long. From the midpoint of the chord to the outside of the pizza, the shortest distance was 2 cm. What was the diameter of the pizza?
asked by Anonymous 
Algebra
Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. Show your work. Use the resulting ordered pairs to plot the graph State the equation of the line asymptotic to the
asked by Nicole 
math
find w from the formula k=wa+b whn k=30, b=6 and a=4
asked by katy 
Mathematics
Evaluate 3 1/9 x (3 3/5) ÷ 2 1/10 INTEGERS [3x(3)4x(2)+5x2]+[2x(3)+8x(2)8x2]
asked by Rebecca S Bhutto 
Calculus
A rational function g has the lines x=2 and x=2 as vertical asymptotes, the line y=4 as a horizontal asymptote, and numbers 3 and 1 as zeros. Find a formula for g(x). So I got g(x)=(4x^216x+12)/(x^24) Is this correct Math Mate?
asked by Leanna 
math
How do I calcualte these conversions? 8.4cm = m 1333.8g=kg 119cm=mm 2391mL=L 3.22Mm=km 4.68fs=ps 8.86*10^11=Gm 1.57*10^10m=picometers 381cm=in 94mm=in 5.0L=q 132kg=lbs
asked by Will 
algebra
Solve algebraically and check x^2 + 4y^2 = 4 x = 2y  2
asked by George 
Calculus
A rational function g has the lines x=2 and x=2 as vertical asymptotes, the line y=4 as a horizontal asymptote, and numbers 3 and 1 as zeros. Find a formula for g(x).
asked by Leanna 
Calculus
Solve for x if 5+lnx=14/lnx.
asked by Leanna 
calculus
PLEASE write 2x+y=5 in polar form. a. sqrt5 = r cos (theta 27degrees) b. sqrt5 = r cos (theta 27degrees) c. sqrt5 = r cos (theta +27degrees) d. sqrt5 = r cos (theta +27degrees) is the answer c.
asked by jane 
math
A cone of height 24cm has a curved surface area 550 cm2 . Find its volume.
asked by CUNY 
Chemistry
A reastion consumes 5.0g of A and 6.0g of B. How many grams of C and D should be obtained? 1A + 3B > 2C + 4D MC answers: 23 11 1 10 Not enough information to answer the question
asked by Megan 
science
Virginia hears a scratching sound outside her window almost every night. She finds that no tree branches can reach the window even in the strongest wind. What should she do next to solve this problem using the scientific method? a) do another experiment b)
asked by pam 
Physics
I'm shown a graph with position on the y axis and time on the x axis. The question is what is the total displacement during the time interval. The position in (m) starts at 1.0 and goes to 6 and the time starts at 010.0 (s). The question is what is the
asked by JulieAnne 
Calculus (Reiny or MathMate)
A rational function g has the lines x=2 and x=2 as vertical asymptotes, the line y=4 as a horizontal asymptote, and numbers 3 and 1 as zeros. Find a formula for g(x). So I got g(x)=(4x^216x+12)/(x^24) Is this correct
asked by Leanna 
Health
List four ways to keep your health balanced
asked by Brandon 
Math(Please help)
Simplify each expression. Assume all variables are positive. 1) 3 sqrt2  8 sqrt128 I think you subtract the 3 from the 8 but I do not know what else to do. 2) Simplify expression. Answer should have only positive exponents. (8x^3 y^1/2)^2/15 Do I
asked by Hannah 
chem
If you have an insulated glass of water at 25 oC containing 10 fluid oz at 25 oC, how much ice would you have to add to end up with a final temperature of 0 oC and no ice left?
asked by dan 
chem
If ice were to be placed in a container at a temperature of 2 oC, with a water vapor pressure of 2 torr, you would see a decrease in the volume of solid ice over time.
asked by dan 
science
Lilian's car won't start. She is using the scientific method to determone the cause. The car won't jumpstart so the battery is not the casue of the problem. What should she do next? a) run another experiment b) form another hypothesis c) draw another
asked by Happy Labor Day!!!!!!!!!!! 
science
The following statement is a vaild scientific theory. If Watson and Crick had not discovered the structure of DNA, bio  technology would be 20 years behind where it is today. TRUE FALSE true
asked by pam 
12th grade
make the subject (p) p+3=(pq+r)/2
asked by rearranging formulae 
12th grade
2x^2+6x16 and 14x^23x2
asked by factorising expressions 
System of equation
solve algebraically x^2 + y^2 = 16 x  y = 4
asked by jelly 
Physics
A particle moves in the xy plane with constant acceleration. At time zero, the particle is at x = 4.5 m, y = 6.5 m, and has velocity v(naught) = (6.5 m/s)ihat + (−2.5 m/s)jhat (arrow for v(naught) points toward positive x direction). The acceleration
asked by John 
Algebra
I am trying to find the equation to m= 8(3,2)This is what I did and then I get stuck, sorry m=8(3,2) y=2(8)(x3) y=2x? this is where I get stuck 24 or 5
asked by Ziggy 
5th grade
Wha are the names of the smaller mountain ranges that make up the Rocky Mountains?
asked by Breanne 
12th grade maths
just like to check if ive got these right. if not can you help?? make the subject (q) p(q+r)=2(qp)ans q=pr+2p/(2p) make the subject (p) p+3=qp+r/(2) ans p=r6/(2q) make the subject (r) p(rq)=2+3(qr) ans r=2+3q+pq/(p+3) make the subject (x) y=rqp/(x)
asked by adam 
World Religions
The gospel starts off with Jesus talking with some of his followers and telling them about sins. He continues to tell his followers about the sin of adultery. After speaking for a while Jesus gets up and leaves and the people are left confused. Then comes
asked by y912f 
English Literature
Explain why beowulf is an epic poem and why beowulf is an epic hero.
asked by Brittany 
Probability
Toss a fair coin ten times. Find the probabiltiy of getting heads at least once. Can anyone help me to see how this works out?
asked by Diane 
algebra
Simplify. 3x+2y5+3yx=
asked by Tierra 
algebra
help with math 116 week 8
asked by Anonymous 
chem2
If you have an insulated glass of water at 25 oC containing 10 fluid oz at 25 oC, how much ice would you have to add to end up with a final temperature of 0 oC and no ice left?
asked by dan 
Physics
2D Displacement: Particle moving, V(naught) 6.5 m/s(ihat), 2.5 m/s(jhat) arrow above V(naught) pointing in positive x direction. Also a= 6.5m/s^2 (ihat), 1 m/s^2 (jhat) I have V(subx) of 65 & V(suby) of 6.5, both after 9 seconds w/ initial point
asked by John 
Math
in salem, 42% of the registered voters are republicans and 44% are democrats. the other 217 are independents. how many registered voters are there in salem?
asked by Jeff 
3rd grade
Synonyms of to imagine
asked by Micah 
Mathematics
Evaluate: (a) (4/5 + 1/3)÷ 2/3 (b) (3/4 x 1/3  1/12)÷ 1/2 my answer of b comes 12 is it right? and if its not then can u explain me thanks
asked by Rebecca Suhail 
System of equation
solve system of equations graphically and check 2x  y = 5 3x + 2y = 4
asked by Genevieve 
health
as you grow up stress in your live is sometimes caused by ?
asked by Brandon 
Algebra II/ Pre Calc
ln(12+x)= It is not (ln 12)(ln x) or (ln12x)
asked by Jessica 
Calculus
If f is a polynomial function of degree 3 with the numbers 4,5, and 6 as zeros, and if f(1)=210, determine the formula for f(x).
asked by Leanna 
Chemistry
A reastion consumes 5.0g of A and 6.0g of B. How many grams of C and D should be obtained? 1A + 3B > 2C + 4D MC answers: 23 11 1 10 Not enough information to answer the question
asked by Megan 
computing
if you can answer these question and give the calculation that would be a great help thank you 1. Calculate the amount of storage required for a black and white bitmapped graphic which has a resolution of 2000 x 1400 dpi. 2. calculate the amount of
asked by LiiNa 
science
WHAT IS AN INFERENCE? a) what is really occurring b) a conclusion that has been tested and accepted c) an observation made with a sense other than sight d) a tentative conclusion based on observation just need to know if right or wrong C
asked by pam 
accounting
How do I make general journal entries from a adjusted trial balance?
asked by Cindy 
algebra
solve algebraically x^2 + y^2 = 16 x  y = 4
asked by James 
Calculus
How do you find the integral (antideriv) of 12 / (7t + 6) ???????? I know that the antideriv of 1/x equals ln x, so is the antideriv of [12 / (7t +6)] = 12 ln (7t +6) ???? THANK YOU SO MUCH!
asked by APpreciative student 
chemistry
What weight of sodium nitrate (NaNO3) must be used to prepare 511mL of a 10.8Msolution of this salt in water?
asked by Anonymous 
Algebra I
I am tying to determine whether the graph pairs below are parallel. x+12=y and yx=8. I have found the slope to x+12=y is 1. But I can't determine the slope for for yx=8. I am thinking maybe it is undefined, but I am not sure, since I am really new at
asked by Ziggy 
math
solve algebraically x^2 + y^2 = 25 y = x  1
asked by jelly 
Physics
Vector ~A has a magnitude of 7 and points in the positive xdirection. Vector ~B has a magnitude of 21 and makes an angle of 30â—¦ with the positive xaxis. What is the magnitude of ~A âˆ’ ~B ?
asked by nelly 
11th grade
do you think the activation energy in living things is high or low
asked by Anonymous 
Math
why is that sec is even function while csc is odd function??
asked by prethy 
Science  Physics
How long would it take you to drive from Houston to Gatorville LA (235 miles0 if you drive the first 75 miles at 60 mph, the next 100 miles at 65 mph, and the last 60 miles at 70 mph? What is your average speed for the entire trip?
asked by Rachel 
s.s
What is the definition for a scale on a map?
asked by Emily 
math
9x^2  4y^2 = 36 y = 3x  6
asked by leorenz 
Math
The sum of Billy's and his sister Diane ages is 37. If three years ago Billy was 11 years older than Diane, then what is the age of each of them right now?
asked by Blah 
STATISTICS
THE ELECTION POLL REPORTED THAT A CANDIDATE HAD AN APPOROVAL RATIONG OF 30% WITH A MARGING OF ERROR E OF 4%. CONSTRUCT A CONFINDENCE INTERVAL FOR THE PROPORTIONS OF ADULTS WHO APPROVE OT THE CANDIDATE.
asked by Anonymous 
math
find r from the formula a=pie rl when pie= 3.142, a= 96, and i=12
asked by luis 
English
In the book, Pride and Prejudice,does Elizabeth marry Mr. Darcy in the end?
asked by M 
geology
Refer to Figure 9.21 on p. 264 of the text. How would you determine the slope of the land surface in this figure? If you consider building a house in a location in this area, what is the best location for your house? Why?
asked by Tammy 
math
xy = 8 y = x + 2
asked by brian 
Physics
I just need to clarify something in my mind I look at a graph and the position changes from 3 to 8 over a ten second interval, to find total displacement, I just take 83 would equal 5 for total displacement, correct? I don't need to bother with the time
asked by Joel 
maths
find d from the formula c=pie d when pi=3.142 and c=27
asked by Anonymous 
numerical method  elimination
htt$$p://i53.tiny$pic.$com/33dup2p.$png Remove all the $ sign. picture is of the problem. Thank you for the help!
asked by johndoe 
English
1. Degas painted in his studio, and he was based on the sketches. 2. Degas painted in his studio, and he was based on the sketches. 3. Degas painted in his studio, and his paintings were based on the sketches. 4. Degas painted in his studio, his paintings
asked by rfvv 
Psychology
How could Freud and Rogers have created theories that differ so fundamentally? If Rogers and Freud and changed places (turn of the century Vienna versus mid20thcentury US), would they still have developed the same theories?
asked by Linda 
chemistry
Convert a density of 2.74 x 103 g/L into a density with dimensions of kg/mL. please show how would this conversion be done.??
asked by Jack 
intermediate algebra
Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 0 and 1, and at x=1. show your work. use the resulting ordered pairs to plot the graph. State the equation of the line asymptotic to the
asked by chihuahualover2010 
Language
Write the missing letters of each given verb. The meaning of the verb is given to help you identify the missing letters. 1.c_ _ _ _ e. To make a noise like a hen 2.p_ _ _ _ _ d. To imagine 3.h_ _e. To walk
asked by Micah 
Government
Im supposed to find an article from this summer (June August 30) on how the Democratic or Republican party is trying to influence or control the governmental action then write about it. Please help me find an article. ( I've already did 9 on different
asked by Sarah 
Science/Math
If the temperature of a room is 70 degrees F, what is the temperature of the room in Celsius? In Kelvin?
asked by Kristina 
equation
solve graphically. x^2 + y^2 = 10 y = 3x
asked by Melanie 
equation
Solve algebraically and check y = x^2  3 x + y = 1
asked by James 
Math
Simplify each expression (216)^1/3 My answer is 1/6. Am I correct. (x^4y)^1/3 (xy^4)^2/3 I do not know how to simplify this.
asked by Hannah 
math
find D from the formula C= pie D WHEN pie= 3.142 and c= 27
asked by jake 
english
could i get this paragraph edited it is a biography in the form of a speech Good morning everyone, we have a special guest here today his name is James lore. Before he comes on, I will tell you a little about him. First off, James is a grade 12 student
asked by sam 
writing
So I read books 1216 of The Annals by Tactius and haven't yet finished the Civil War by Lucan. But after reading these two we are suppose to come up with a thesis statement to write a paper about literature in the time of Nero. This is only a rough draft
asked by Clueless 
social studies
lake superior:north america::lake victoria_____________?
asked by diamond 
science
The following statement is a vaild scientific theory. If Watson and Crick had not discovered the structure of DNA, bio  technology would be 20 years behind where it is today. TRUE FALSE true
asked by pam 
science
Minska has a problem. When she turns on a lamp, the lamp doesn't light. She wonders if the lamp is plugged into the outlet. She checks the outlet and discovers that it is plugged in. Which stage of the scientific method is Minska in when she looks at the
asked by Happy Labor Day!!!! 
chemistry
what is the density of 700 ml of a gas that has a mass of 7 g?
asked by alexandra 
Math
I need help with this problem. Factoring with Two Variables h^2 9hs + 9s^2
asked by Cheryl 
social science
How did forces of history lagency time epocjs events evolutions revolution affect the transformation of the western society and Ecuador and the spread of global civilization
asked by renee 
Physics
if the speed of a moon car is .124 miles/second. How long, in minutes, would it take the moon car to go 5 kilometers.
asked by Pat 
health
How might a novice (new person to health care) confuse advance directives within the Patient SelfDetermination Act when distinguishing information as administrative or clinical when working with health records? Where would be the best website to explain
asked by Cassie 
algebraically.
xy = 6 x + 3y = 3
asked by camile 
chemistry
If a soda can is 11.8 cm tall, how many would it take to make a stack to reach the moon?
asked by Jane 
rly need help on math problem!
Directions: Use each statement as givena and draw a single conclusion using all of the statements. 1) No birds,except ostriches, are nine feet high.There are no birds in this aviary that belong to anyone but me. No ostrich lives on mince pie. I have no
asked by rebekah 
12th grade maths
just like to check if ive got these right. if not can you help?? make the subject (q) p(q+r)=2(qp) ans q=pr+2p/(2p) make the subject (p) p+3=qp+r/(2) ans p=r6/(2q) make the subject (r) p(rq)=2+3(qr) ans r=2+3q+pq/(p+3) make the subject (x) y=rqp/(x)
asked by adam 
solve please
xy = 12 y = 2x + 2
asked by ellize 
English lit
how does achilles enemy differ from beowulfs and gilgameshs
asked by Brittany 
linear equation
graph y=x+4
asked by chelsea 
Chemistry
8.4cm = m 1333.8g=kg 119cm=mm 2391mL=L 3.22Mm=km 4.68fs=ps 8.86*10^11=Gm 1.57*10^10m=picometers 381cm=in 94mm=in 5.0L=q 132kg=lbs
asked by Bill 
science
Minska has a problem. When she turns on a lamp, the lamp doesn't light. She wonders if the lamp is plugged into the outlet. She checks the outlet and discovers that it is plugged in. Which stage of the scientific method is Minska in when she looks at the
asked by ant 
Math(Please check answer)
Simplify each expression. 1)(sqrt7 + 5)(sqrt7 6) My answer is sqrt 7  30 Am I correct?
asked by Hannah 
algebra
81y=7
asked by jasong 
science
Minska has a problem. When she turns on a lamp, the lamp doesn't light. She wonders if the lamp is plugged into the outlet. She checks the outlet and discovers that it is plugged in. Which stage of the scientific method is Minska in when she looks at the
asked by ant 
algebriacally.
x^2  y^2 = 9 y = 4
asked by James 
math
Andrew earns $2 more than Barbara, who earned $30 more last week than Andrew. All amounts earned were at straight time. This is a number cross word puzzle mind bender homework problem. ? Andrews hourly rate and Barbara's hourly rate
asked by Susan 
Math
A rational function g has the lines x=2 and x=2 as vertical asymptotes, the line y=4 as a horizontal asymptote, and numbers 3 and 1 as zeros. Find a formula for g(x). So I got g(x)=(4x^216x+12)/(x^24) Is this correct
asked by Leanna 
7th grade
know where this is before you begin any lab; you may need to find it in case of emergancy
asked by kelley 
Math grade 10
Our teacher said that for trigonometry, even degree means that if we flip the graph, it is would look exactly the same. Then why is that sec is even function while csc is odd function??
asked by prethy 
partial command system
what is a partial command system
asked by Anonymous 
Science
How many constants can you have in a problem?
asked by Sam 
anat. & phys.
draw & label all tissue/organs of endocrine sys. during stres response
asked by pat 
algebraically.
x^2 + y^2 = 25 y = x  1
asked by camile 
Math
Arthur has dimes and quarters, total number of coins is 35. The value of his collection is $5.00. What number of each type is there?
asked by Stuff 
math
solve algebraically x^2  2y^2 = 11 y = x + 1
asked by brian 
education
How would you interpret a question asking about "a lesson which provides all students an opportunity to learn about one of the sciences...."?
asked by milarky 
maths
find w from the formula k=wa+b when k =30, b=6 and a=4
asked by katy 
English III
I need help don't know how to get this information and not understanding it. The Old Man and the Sea and note five paragraphs in which images occur
asked by Betty 
math
solve algebraically x^2  2y^2 = 11 y = x + 1
asked by jonathan 
scinence
Minska has a problem. When she turns on a lamp, the lamp doesn't light. She wonders if the lamp is plugged into the outlet. She checks the outlet and discovers that it is plugged in. After Minska concludes that her explanation didn't fit the evidence, what
asked by Happy Labor Day!!!!!!!!!!! 
12th grade maths factorising expressions
make the subject (u) p=5tu/u
asked by adam 
Freedom middle school
I want do 6grade science please help me.because I have to do test tomorrow.but help me now
asked by Hsa