Questions Asked on
September 5, 2010

chemistry
A certain element forms an ion with 54 electrons and a charge of +2. Identify the element.
asked by Mely 
chemistry
Calculate the expansion work done when 50 g of water is electrolysed under constant pressure at 25C
asked by Dana 
Statistics
A group of statistics students decided to conduct a survey at their university to find the average (mean) amount of time students spent studying per week. Assuming a standard deviation of 3 hours, what is the required sample size if the error should be
asked by Robin 
physics
A rifle is used to shoot twice at a target, using identical cartridges. The first time, the rifle is aimed parallel to the ground and directly at the center of the bull's eye. The bullet strikes the target at a distance of HA below the center, however. The
asked by demi 
MATH
MACHO ATE 125 HOT DOGS OVER A FIVE DAY PERIOD. EACH DAY HE AT SEVEN MORE HOT DOGS THAN ON THE PREVIOUS DAY. HOW MANY HOT DOGS DID HE EAT ON THE FIRST DAY?
asked by TAYLOR 
chemistry
Phosphoric acid reacts with magnesium carbonate to produce? When you predict the products and write a balanced equation the coefficient of phosphoric acid is a.1 b.2 c.3 d.6 e.4
asked by Mely 
chemistry
the major commercial aluminium ore is bauxite,AlO3.H2O(s).What is its molar mass?The analysis of a representive sample of bauxite shows it contains 70% by mass of Al2O3..What is the maximum mass of aluminium metal that could be obtained from 200kg of
asked by kabelo 
chemistry
The proton has a radius of approximately 1.0 times 10^{  13} cm and a mass of 1.7 times 10^{  24} g. Determine the density of a proton. For a sphere V = (4/3)times pi r^3.
asked by Mely 
physics
A bird watcher meanders through the woods, walking 0.45 km due east, 0.60 km due south, and 2.70 km in a direction 37.0° north of west. The time required for this trip is 4.00 h. (a) Determine the magnitude and direction (relative to due west) of the bird
asked by demi 
precalc
A shoe manufacturer markets a new athletic shoe in a community of 500,000 people. The marketing representative convinces 35% of the community to buy the shoe. Additionally, each customer convinces 35% of his or her friends that have not bought the shoe to
asked by Anonymous 
Math  equations of lines
A line has the same xintercept as [x,y,z]=[21,8,14]+t[12,4,7] and the same yintercept as [x,y,z]=[6,8,12]+s[2,5,4]. Write the parametric equation of the line.
asked by Shaila 
Physics
The figure below shows two pint charges, each of 2Q, fixed on the yaxis at y = +a and at y = a . A third points charge Q is placed on the xaxis at x = 2a . Express all algebraic answers in terms of Q, a, and fundamental constants. (a) What is the net
asked by David 
physics
A motorcycle daredevil is attempting to jump across as many buses as possible (see the drawing). The takeoff ramp makes an angle è = 18.0° above the horizontal, and the landing ramp is identical to the takeoff ramp. The buses are parked side by side, and
asked by demi 
Physics
Please help A small fish is dropped by a pelican that is rising steadily at 0.50 m/s. How far below the pelican is the fish after 2.5 s? Answers. 61m 29.3 30.6 1.1m I just started school and I'm totally lostIf someone could explain formula to me I'd
asked by Melinda 
math
a fireman stood on the middle step of a ladder, shooting water into a burning building, as the smoke lessened, he climbed up 3 steps, and continued his work, the fire got worse, so he had to go down 5 steps, later he climbed up the last 6 steps and was at
asked by justin 
Chemistry
An alpha particle (mass = 6.6 1024 g) emitted by radium travels at 2.5 107 ± 0.1 107 mi/h. (a) What is its de Broglie wavelength (in meters)? (b) What is the uncertainty in its position?
asked by Kate 
phy
A boat can travel 2.60 m/s in still water.If the boat points its prow directly across a stream whose current is 1.10 m/s, what is the velocity (magnitude and direction) of the boat relative to the shore? What will be the position of the boat, relative to
asked by ami 
Physics/ Science
Cars A and B, each moving at 70 km/h, are approaching one another on a straight highway. After how many seconds will they meet if they were initially 1 km apart?
asked by Ryan Jude 
algebra
use the integer to represent a withdrawal of $125 from a bank account. ( i need help )
asked by sasha 
CHEMISTRY> HELP QUICK! pls
Use the following thermodynamic data at 298 K to determine the equilibrium constant at this temperature for the reaction of iron in steam to form hydrogen and iron(III) oxide. 2Fe(s) + 3H2O(g) 3H2(g) + Fe2O3(s) Substance Fe(s) H2O(g) H2(g) Fe2O3(s)
asked by Lucinda 
English
I had to rewrite sentences so that there were no longer fragments are they correct? 1. The idea of a credit card first appeared in 1887, according to Lawrence M. Ausbel, author of “Credit Cards,” in the McGraw Hill Encyclopedia of Economics. 2.
asked by keisha 
physics
A rock climber throws a small first aid kit to another climber who is higher up the mountain. The initial velocity of the kit is 17 m/s at an angle of 50° above the horizontal. At the instant when the kit is caught, it is traveling horizontally, so its
asked by demi 
HIS/135
Explain the impact of McCarthyism on the U.S. Relate the ideology of the Cold War to the breakdown of wartime affiances after the end of WWII. Examine American Cold War policies and practices in international relations from the late 1940s to the mid1950
asked by Tony 
Math  equation of plane and vectors
A plane is defined by the equations x4y+2z=16. Find two vectors parallel to the plane.
asked by Shaila 
physics
In a football game a kicker attempts a field goal. The ball remains in contact with the kicker's foot for 0.050 s, during which time it experiences an acceleration of 360 m/s2. The ball is launched at an angle of 46° above the ground. Determine the
asked by demi 
Physics
I have two I need help with! 1. An airplane is flying in a horizontal flight level at constant velocity, heading due east. If the weight of the plane is 2.6 x 10^4 N, what is the net force on the plane? a)2.6x10^4 N b)2.6x10^4 N c)0.0 N d) that due to
asked by Johnny 
chemistry
You wish to prepare a 10% CaCl2 solution. Only CaCl2 * 10H2O is availalbe. How many grams of the hydrated compound are required for 250ml of the reagent? Ca=40 Cl=35.5
asked by j 
SCIENCE
what is an inference? a) a conclusion that has been tested and accepted b) what is really occuring c) a tentative conclusion based on observations d) an observation made with a sense other than sight C
asked by pam 
Math
triangle PQR is translated 3 units ot the right and reflected over the line y=1. The result is triangle P'Q'R'. Which is NOT true? 1) PQ = P'Q' 2)PQ/RQ = P'Q'/R'Q' 3)PQ + QR greater than or equal to R'P' 4)m angle P + m angle Q is greater than or equal to
asked by Amy~ 
physics
A ball of mass 1.2kg and a volume of 35cm cubed is dropped from a height of 2m. Determine the height to which this ball will bounce.
asked by Joe 
CHEMISTRY> HELP QUICK! pls
Calculate the reaction free energy of: H2(g) + I2(g) 2HI(g) when the concentrations are 0.026 mol L1 (H2), 0.33 mol L1 (I2), and 1.84 mol L1 (HI), and the temperature is 700K. For this reaction Kc= 54 at 700 K. +11.6 kJ mol1 0 kJ mol1 11.6 kJ mol1
asked by Lucinda 
English
I need help with these last few questions. I don't know if they are correct,runon or comma splice. 1. Mary Lou decided not to eat the alphabet soup the letters spelled out" botulism." 2.When English scientist James Smithson died in 1829, he willed his
asked by keisha 
science
The number of protons, neutrons and electrons, respectively, in 115Cd2+ are?
asked by cooper 
Geometry
How would I find the missing side of an obtuse triangle? Using the pythagorean theorem ?
asked by Amy~ 
chemistry
500ml of 0.1M CaCl2 is required for protimes. How many grams of CaCl2 * H2O should you weight out?
asked by j 
Physics
3 There are two charges +Q and –Q/2 that locate at two positions with a separation of d as shown in Fig. 1. We may put +Q at the origin of the xaxis to facilitate the calculation. (a) Find the electric field for +Q and –Q/2 at the position P. (5
asked by David 
Math
Jane is 2mi offshore in a boat and wishes to reach a coastal village 6mi down a straight shoreline from the point nearest the boat. She can row 2mph and can walk 5mph. Where should she land her boat to reach the village in the least amount of time? I'm
asked by Nikki 
chem
According to the Bohr theory of the hydrogen atom, what is the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state?
asked by ryan 
college chemistry
According to the Bohr theory of the hydrogen atom, what is the minimum energy (in J) needed to ionize a hydrogen atom from the n = 2 state?
asked by ryan 
Math
there is $175,000 to award. If the money is awarded to 4 students in a ratio of 1 to 2 to 3 to 4, how much will the largest award be? How would I solve this ?
asked by Amy~ 
economics
describe a specific event that would make each of the following happen to a production possibilities curve a) a point moves down and to the left B the frontier shifts to the right.
asked by carlos 
science
What important characteristics do scientific theories and laws have? a) is always about planets and stars b) is correct and scientific c) explains and predicts d) is the same as a hypothesis c
asked by pam 
His135
Cold War Ideology and Policies Write a 250350world paper in which you address the following. 1. Describe how the Cold War ideology that crystallized after WWII change wartime alliances that had existed during the war. Describe how American Cold War
asked by Tony 
algebra
a boat goes 16 Km upstream and 24 Km downstream in 6hrs.it can go 12Km upstream and 36 Km in same time.find the speed of boat in still water and speed of the stream
asked by sara 
social studies
Which large island is located farthest north?
asked by Sapphire 
calculus
Find the first four iterates of the function using the given value. f(x)= x(2.5  x); x sub zero = 3
asked by Jackson 
English
What do you do after school? 1. I go to an art academy to practice painting. 2. I go to a math academy to study math hard. 3. I go to an English academy to practice speaking with a native speaker. (Are they all correct? Can we use 'provate institute'
asked by rfvv 
maths
find c from the formula H= abc when h= 40, a= 2 and b= 5
asked by max 
chemistry
What is the molar concentration of 2000. mL of aqueous solution containing 125 g of glucose, C6 H12O6? Molar mass 180.15 g/mol. Report your answer to three significant figures.
asked by Mely 
college
Mary's new shoes fell apart at the dance last night. What's the complete subject and complete predicate and the simple subject and the verb.
asked by amerie 
Math Geometry
there are 2 pentagons the small pentagon has a side that is 3cm while the side on the other larger pentagon is 8cm. the small pentagon has a side x cm while the same side on the larger pentagon is 5cm. would i set up a proportion 3/x = 8/5
asked by Amy~ 
Math
A donkey and a mule were carrying sacks of apples. The donkey groaned so the mule said to him: "Why are you complaining? If you gave me one sack, I would have twice as many as you; if I gave you one of my sacks, then we would have equal loads." How many
asked by Lizzy 
math
A total of 1200 students attend top view high school. The ratio of teachers to students is 1:30. How many teachers are there at the school?
asked by christine 
algebra 1
how to simplify and solve 2/5(20x+5)1/2(84x)=38
asked by kate 
formula
find p from the formula I= prt/100 when i= 20, r=5 and t= 4
asked by Anonymous 
science
Can someone answer in depth the difference between a soap and a detergent using chemist terms please :)
asked by Adam 
chemistry
What is the oxidation number of sulfur in SO42?
asked by Mely 
chemistry
What is the molar concentration of 2000. mL of aqueous solution containing 125 g of glucose, C6 H12O6? Molar mass 180.15 g/mol. Report your answer to three significant figures.
asked by Mely 
Chemistry
There was this problem on a test that I took recently. But, I never learned how to solve this. The problem was: it gave the mass of a certain compound and stated that it had 92% carbon. then it asked for the theortical yield of Carbon.
asked by Amy~ 
Math
A farmer planted a field of BT 124 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre and determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90,000
asked by Jim 
science
Just need to know if my answer is wrong or right. Thank You! :) A well accepted theory in science is Einstein's Theroy of Relativity. If new evidence was found which contradicted the theory, the theory could be rejected. true false FALSE
asked by pam 
Math
A sample of 100 students is selected from a known population of 1000 students to construct a 95% confidence interval for the average SAT score. What correction factor should be used to compute the standard error?
asked by Robin 
Computer networks
Consider sending a file of 2Mbits from Host A to Host B. There are three links and two storeandforward routers (or switches) between A and B. Assume that no link is congested (that is, no queueing delays), and the oneway propagation delay of each link
asked by Up 
maths
find p from the formula i= prt/100 when i=20, r=5, and t=4
asked by max 
science
The number of protons, neutrons and electrons, respectively, in 115Cd2+ are?
asked by cooper 
Algebra 1
subtract (8 sqrt 125)  (7 sqrt 5)=
asked by June 
chemistry
write equations for the reactions of NaOH(aq) with solutions containing Al^3+ Cu^2+(aq),Pb^2+(aq) and Fe^3+(aq) ions respectively
asked by kabelo 
chemistry
cobalt chloride forms pink crystals. when they are heated water is evolved an they turn blue. can you please explain how you could ue cobalt chloride as a test of water.
asked by Anonymous 
Algebra
I need help with math 116 week8 quiz I have tried everything please help me I am failing this class thank you in advance
asked by Norma 
math
find p from the formula I=prt/100 when i=20, r=5 and t=4
asked by lauren 
Math  vector equation of a parallelogram
The vertices of a parallelogram are the origin and the points A(1,4), B(3,6), and C(7,2). Write the vector equations of the lines that make up the sides of the parallelogram
asked by Shaila 
chemistry
whats the average atomic mass of silver according to the following data? use four decimal points Silver107 107.03528 51.86 Silver109 109.12006 remainder
asked by Lorie 
Math (Calculus II)
Rate of change proportional to size: P(t)= P(i)e^kt, where P is population, t is time, k is a constant and P(i) is the initial p or "p naught"; sorry, I don't know the typed notation for subscript. By the way, p(i) is given as 100. The problems are a.)
asked by John 
Physics  Circular motion
A marble of mass m is placed on top of a bowling ball of radius r and allowed to roll from rest. derive the angle from centre of circle at which the marble loses contact with bowling ball. assume there is no friction between marble and bowling ball.
asked by Andrew 
Math
PLEASE HELP ME FACTOR COMPLETLEY. 25w^2144
asked by jen 
Chemistry
I need to work out a mechanism for the synthesis of 2cyclohexylpropanal. I am not sure what the reaction is to make this or what reagents to start from. I thought that maybe it could be an aldol reaction starting from cyclohexanone and propanal but I'm
asked by Alice 
economics
problema solving how would you illustrate the impact of each of the followimg events on a production possibilitities curve for factoey goods and farms? A)the computer is invented B)1 million farm workers remain unemployed for six months c) a drought
asked by carlos 
Math
Im not sure where to begin on this problem: g(x)= 492x^3492x^2+308x5 What are the only possible integer roots of g?
asked by V 
algebra homework
1 minus the sqrt of x by the power of 2. I need help with the steps of solving this. I forgot how to do it. Thakns in advance.
asked by kim 
capt math
to convert from ounces to pounds, you can multiply the nymber of ounces by 0.0625. express 0.0625 in scientific notation. : can you please help me express it. thanks
asked by sasha 
economics
# Choose a product you have purchased in the past month from a grocery or home improvement store. # Describe how each of the 4 factors contributed to the elasticity of the good. # Is the product considered elastic, inelastic, or unitary elastic? # In a few
asked by Anonymous 
CIS 105
Describe one technological device in 350 to 700 words. Include the following: When did it come (or will it potentially come) into existence? What scientific or technological reasoning explains how this potential has been (or can be) be reached? Think about
asked by Jasmine 
Algebra
a cellular phone company offers a contract for which the cost C in dollars of t minutes is given by C 0.25 (t300)+ 61.95 where it is assumed that t¡Ý 300 minutes what time will keep $99.45 and 145.95
asked by Norma 
geometry
The side of a triangle opposite a 58° measures 15 inches. To the nearest hundredth of an inch, what is the length of the side opposite a 53° angle
asked by ben 
Chemistry
A 4.50 g sample of LiCl at 250 C dissolves in 25.0 ml of water also at 25.0 C.? The final equilibrium temp of the resulting solution is 60.8 C. What is the enthalpy of solution, deltaHs, of LiCl expressed in kilojoules per mole.
asked by Jeff 
Math(Please check answers)
1) Solve the equation: 15(7x6) = 3x5 My answer is (85/108) 2) Mary and her brother collect coins. Mary has 4 times the number of coins that her brother has. Together they have 175 coins. How many does Mary have? My answer is 140 3) Perform the indicated
asked by Hannah 
algebra
a boat goes 16 Km upstream and 24 Km downstream in 6hrs.it can go 12Km upstream and 36 Km in same time.find the speed of boat in still water and speed of the stream
asked by sara 
Algebra 2
Can someone please help me? Use the rational exponents to simplify. 5 sqrt x^20 would the answer be 5?
asked by Ava 
Division
3y18/35 divided by y6/15y
asked by Brian 
business
The leader of your client organization has observed a lack of flexibility and a slow decisionmaking process in many of the departments. He believes that he is not serving his customers well, and has decided to move to a team environment and to push many
asked by gloria 
statistics
how to do histogram and relative frequency histogram using the #s 1,5,5,6,7,4,8,7,6,5,5,6,7,6,6,5,8,9,9, 10,7,8,11,2,4,6,5,12,13,6,3,7,8,8,9,9,10,9,8,9 with five classes
asked by marilyn 
algebra
(a minus sqrtx)^2=25 I have no idea of how to work this problem where i in up with the answers of a=7,3. Basiclly I just gave it a guess. Could someone show the steps I need to take. Thanks.
asked by jessica 
chemistry
A tank has a pressure of 20.3 atm at a temperature of 22.6 oC. After heating, the temperature rises to 52.7 oC. What is the new pressure?
asked by Mely 
math
Hoshi walks 10 meters in 3 seconds what is her walking rate
asked by Nina 
11th grade
The base of a pyramid is 10 cm high is the triangle shown. Find the volume of the pyramid. The hieght/leg of the traingle is 4 the base/leg is 6 and the hypothnues is 7.21
asked by Ali 
physics
An object with an initial velocity of 5 m/s accelerates uniformly for 15 s. (a) If the final velocity is 37 m/s, what is the acceleration?
asked by bob 
science
What would happen if correct new evidence was discovered that did not agree with a well established scientific theory? a) the theory would be modified or replaced b) the evidence would be false. evidence has to match the theory. c) this couldn't happen.
asked by pam 
physics
A hockey puck has an initial velocity of 44 m/s and a final velocity of 34 m/s. (a) If it travels 25 m during this time, what is the acceleration? m/s2 (b) If the mass of the puck is 0.13 kg, what is the horizontal force on the puck? N
asked by mike 
Microeconomics
A company is working on the market of perfect competition. Its cost function TC=Q^24Q+64 and demand function on the product that company produces is Q=40020P. Calculate: a. optimal quantity of production, at which company maximizes profits b. market
asked by Magda 
computer science
• Explain, in a 350 to 700word paper, each of the 12 principles of information security and how each can be applied to reallife situations. Include an explanation of the four types of security policies
asked by john 
world history
Over the next two years I will be writing a 4000 word essay on a narrowly focused topic of my choice. I would prefer to do something in history, although there are plenty of other catagories in which my research question may be submitted. I would greatly
asked by Taylor 
Health
a plant in the classroom appears to be wilting. The children are asked to come up with as many possible explanation for this as they can. They're engaged in the second stage of decision making, called A.groupthink B.herding ideas C. railroading ideas
asked by LV 
science
Just need to know if my answer is wrong or right. Thank You! :) Select all the following that could be observations:? a) what some is thinking b) the taste if pancakes c) the sight of clouds in the sky d) the taste of a cookie C
asked by pam 
calculus
I am having a problem with solving this Given the function f described by f(x)=x+3, find each of the following: f(0) f(13) f(12) f(1) f(4+8) can you help me please?
asked by kasey 
Word Problem, math.
A police car traveling 100 ft/sec is chasing a car being driven erratically at 75 ft/sec. If the police car is 300 feet behind the other vehicle when the chase began, about how many seconds will it take to catch the erratic driver? I think I know how to
asked by Arie 
Chemistry
what are the 3 levels of protein structures and how do bonding and intermolecular forces relate to this?
asked by sarah 
Chemistry
what are the 3 levels of protein structures and how do bonding and intermolecular forces relate to this?
asked by sarah 
math
During a football game, two players try to tackle another play. One player applies a force of 50.0 N to the east. A second player applies a force of 120.0 N to the north. What is the total applied force? (Since force is a vector, you must give both the
asked by jeff 
Physics
If someone could point me in the right directionplease!!! A car with an initial speed of 4.30m/s accerlerates uniformly at the rate of 3.00 m/s ^2. Find final speed after 5.00s. Thanks for any help you can provide.
asked by Andrea 
Physics
Suppose that you are at the top of a (rigid) rocket which is half a light year tall. If the rocket is accelerating such that your proper acceleration is 1g, What is the proper acceleration at the bottom of the rocket? B = F c2 c2 F : This is one of
asked by Ian 
childhood education
summarize the four stages of the transformational learning cycle
asked by kesah 
home work
Suppose Lynette ride her bicycle due south at a rate of 16 miles per hour.If the wind blowing due west at 4 miles per hours ,what is the resultant velocity and direction of the bicycle?
asked by Nancy L 
Algebra
5 sqrt x^20
asked by Tom 
Math
Is this right? Simplify by removing factors of 1. 2m^2+2m/10m^2+4m My answer is m^2/5m^2+2m
asked by Ashley 
Math: Geometry/Algebra?
A construction company needs to build thirty trusses for the roof of a house. The truss is 20 ft long on the top two sides. What is the bottom length of the truss? the options for this answer were: a)30ft b)40ft c)50ft d)60ft When I solved this, I got 28.3
asked by Amy~ 
Algebra 1
Multiply (5sqrt510sqrt 6)* (3sqrt5+6sqrt6)
asked by June 
science
Virginia hears a scratching sound outsides her window almost every night. Which of the following would be good evidence to gather to test the hypothesis that a tree branch is rubbing the outside of Virginia's window? a) set a trap to catch any animals by
asked by pam 
Music
What invention during the Renaissance period enabled people to purchase music for their own personal use? A. Faster delivery service B. Printing press C. Instruments for trained transcription workers D. Electronic recording device
asked by LV 
chemistry
2.633 ounces of aluminum were added to a graduated cylinder containing 16.71 mL of water. What is the new water level after adding the aluminum? The density of aluminum is 2.702 g/ mL.
asked by Mely 
chemistry
wat are the main uses of aluminium
asked by Anonymous 
physics
The space shuttle traves in orbit at 210000 km/hr. How far will it travel after 5.0 hrs?
asked by Y 
science
what is the first step in the scientific method? a) a conclusion is made b) evidence is gathered c) a problem is presented d)an explanation is thought of C
asked by pam 
Database Essentials
2 questions. what is the importance of databases in business world? what are the the different objects you find in a Microsoft Access database file?
asked by Bryan 
algebra
2x^22x1=0 How do I use the quadratic formula to solve this because I am totally new at this and need help? Please show me the steps for this equation,so I will be able to do it own my own. Thank you.
asked by paulina 
His135
CheckPoint> McCarthyism Submit 150to200 word response in which you address the following: 1.Explain how McCarthyism affected the lives and political thinking of people in the U.S. 2.Defend McCarthyism as appropriate or criticize it as inappropriate for
asked by Tony 
algebra
what is 4c+2f6c10f
asked by Anonymous 
bio
wat is a palisade cell?
asked by Anonymous 
science
Just need to know if my answer is wrong or right. Thank You! :) Joe's computer mouse doesn't work. He wonders if it is plugged in. He checked the mouse cord and discovers that it is unplugged. Which stage of the scientific method is Joe in when he checks
asked by pam 
Math
Which major should Derrick pick based on the starting salary? Business: Mean: $39,000 Median: $30,000 Range: $20,000 Engineering: Mean: $35,000 Median: $34,000 Range: $12,000 Could someone explain why it would be a certain major? I don't know: I thought
asked by Amy~ 
maths
find r from the formula e= ir when e= 20 and i = 4
asked by Anonymous 
Chemistry
Desribe differences and similarities of monosaccharides (ie. explain different forms of isomerism)
asked by sarah 
maths
find c from the formula H= abc when h= 40, a= 2 and b= 5
asked by max 
Math Geometry
Can anyone help me answer this question... Find the area of a right isoscles triangle if the altitude on the hypotenuse is 4 cm.
asked by Avery 
Multiplying
(81a^2/2a^24a+2) * (2a2/9a) Please help. Thanks
asked by Gary 
math
can someone please help me with this.. I do not get how to do it 3 sqrt 729 x^5/y^3
asked by Gary 
algebra
Given the function k described by k(x)=8x, find each of the following. k(13)= k(6)= k(24)=
asked by Alan 
algebra
The third power of sqrt of 5b^9. Can someone point out the steps for solving this problem. Thanks for your help in advance.
asked by Trina 
science
An ambulance is going down the street with its lights and siren on. the hospital is five blocks away. select all the statements that are observations. a) the ambulance is moving b) the ambulance is going to the hospital c) the ambulance has its siren on d)
asked by pam 
10th grade
for which value of n will the function 4/9 and n/27 be equivalent?
asked by sasha 
Health, Safety, and Nutritio
A child who hasn't learned the prerequisite fundamentals needed for a combination of motor patterns is suffering from
asked by LV 
Math
Brandy ate 1/4 of his twelfth birthday cake. His friends ate 2/3 of it. If the cake was divided into 12 pieces, how many pieces did Brandy and his friends eat?
asked by Nixie 
algebra
order the following numbers from greatest to least : 3.8 , 4.3 , 4.1 . express the answers by usinq < , , _>
asked by sasha 
Managerial Economics
The general supply function for new housing in Miami is estimated to be Qs ƒƒnƒ©ƒ¦ƒyƒnƒ¢P ƒ{ƒ¡ƒ~PL ƒ{ƒ¤PK where P is the price per square foot of new housing in Miami, PL is the average hourly wage rate for construction workers, and PK
asked by Julia Miller 
maths
these numbers: 20,17,21,15,16,15,12,14,15,19,21,17,20,22,16, 19,21,13,22,14,15,18,20,13,18,16,15,19 the mean is 17.25 the range is 10 what would you give as the pass mark?
asked by Anonymous 
science
science best defines observation as which of the following? a) evidence that is seen b) something to look at the planets c) evidence detected by any of the senses d) anything that is seen C
asked by pam 
biology
what does DNA stand for?
asked by Anonymous 
Math
x = 3 2x^(2) / (1/3)^(x) how to solve? would I multiply 3(2) than square? Also, when I move (1/3)^(3) to the numerator would it become (3)^3
asked by Amy~ 
Intermediate Algebra
Evaluate the logarithmic equation for three values of x that are greater than 1, three values of x that are between 2 and 1, and at x = 1. Show your work. Use the resulting ordered pairs to plot the graph; submit the graph via the Dropbox. State the
asked by Marnae 
science
A hypothesis is made in which stage of the scientific method? a) evidence is gathered b) the problem is presented c) a conclusion is made d) an explanation is thought of D
asked by pam 
IT/Business/Law?
Do I have to register for copyright protection of works of art including writing, photographs and digital images?
asked by James 
comp
• Write a paragraph of at least 200 words identifying three challenges that might arise when writing a paper.
asked by twilia 
maths
find n from the formula P= 1/n when p= 2
asked by Anonymous 
Chemistry
explain different forms of polymerisation in glucose
asked by sarah 
Geography
what does function mean in geography?
asked by Lucy 
marketing
You are a consultant advising a company on the importance of making good assumptions before making major decisions. To explain to your client what you mean you decide to give examples of other companies and the assumptions used to make major decisions.
asked by hilda 
Geography
Does this article relate to latin america geography? Brazil government gives goahead for huge Amazon dam. What's the significance of this article? Brazil's government has given the formal goahead for the building on a tributary of the Amazon of the
asked by Courtney 
algebra 1
how to solve 2/3+5/6=
asked by jasmine 
Chemisrty
would anyone be able to help me with mertic conversions? A table would be useful. would you be able to show me an example of how to convert units? please help! thank you so much!!
asked by AyPa 
work
If I have a base of 144" and sides of an equilateral triangle measuring 7'3", what is the height of the triangle?
asked by Boyd 
criminal justice
why to the laws on the book differ with juveniles and adults. should they? what about the punishment?
asked by llisa 
math
You find 30 coins in your drawer. 20 % of the coins are nickels. How much money you have in nickels?
asked by Mely 
algebra
Find the function value. f(x)=x^3 f(8)=
asked by Alan 
math
simplify 3sqrt1/8
asked by Brian 
government
Valuing order and equality more than freedom is a characteristic of conservative communitarians libertarians liberals
asked by carlie 
7th grade
what to do if the unit rate have a reminder
asked by Anonymous 
phy
at what projection will the range of a projectile equal to 2 times its maximum height?
asked by ami 
Math
Simplify the expression csc@cos@tan@. What is the best way to solve this?
asked by V 
AED 201
Interview with a Teaching Professional •What are some examples of typical, quick decisions teachers make on a daily basis? •What were the five most difficult schoolrelated decisions you made this week? What made them difficult? •What was the affect
asked by Jasmine 
math
Amount of an investment. The amount of an investment of P dollars for t years at simple interest rate r is given by A P Prt. a) Rewrite this formula by factoring out the greatest common factor on the righthand side. b) Find A if $8300 is invested for
asked by naine 
english
What are some colorful, playful phrases from Angela's Ashes by Frank McCourt like, "stuff his gob with toffee galore" " 'tis raining abroad, pelting out of the heavens" and "legless with the sherry". And please say in what chapters they are?
asked by anna 
math
One of the angles of a right triangle measures 30°, and the hypotenuse is 10 inches long. How long is the side opposite the 30° angle?
asked by ben 
Chemistry
How the mitochondrial processes of cell respiration compare with the cytoplasmic processed of cell respiration in terms of ATP production
asked by sarah 
mathlogic
use each statement as given, and draw a single conclusion using all of the statements. => means implies 1) no misers are unselfish.None but misers save eggshells. Answer i got: eggshells => unselfish 2) Every eagle can fly.Some pigs cannot fly Answer 1
asked by rebekah 
english
Is this a fragment? Other outdoor summer activities are also endangered.
asked by keisha 
chem
How many electrons are in an atom of O2.
asked by vanessa 
math
Factor completley 12r^2 +36rf +27f^2 5x^520x^4+30x^3 Can anyone please help me with these two problems. I have to get them done and do not understand them. Please help me.
asked by Susan 
English
How would I correct the following comma splice. Unfortunately, Anthony did not live to see the 1920 passage of the Nineteenth Amendment giving women the right to vote she died in 1906.
asked by keisha 
math
simplify 3sqrt1/8
asked by Chloe 
Maths
A farmer planted a field of BT 124 corn and wants to estimate the yield in terms of bushels per acre. He counts 22 ears in 1/1000 of an acre and determines that each ear has about 700 kernels on average. He also knows that a bushel contains about 90,000
asked by Jim 
chemistry
A gas with a temperature of 31.3 oC and a volume of 109.2 L is compressed to 11.7 L. What will be the new temperature? Report your answer to one decimal place.
asked by Mely 
government
Compared to the Articles of Confederation, did the US Constitution represent an increase in national power or a decrease? How so?
asked by D 
math
find c from the formula h=abc when h=40, a=2, b=5
asked by alex 
political science
Compared to the Articles of Confederation, did the US Constitution represent an increase in national power or a decrease? How so?
asked by D 
Health, Safety, and Nutrition
A child throws a ball with speed and accuracy when he plays catch with his teacher, but his throws are slower and less accurate when he plays with a group of friends. This difference is explained by. A.classical stage theory B. probability theory C.
asked by LV 
maths
these marks were obtained by class of 28 students in a science test. the maximum mark possible is 25. 20,17,21,15,16,15,12,14,15,19,21,17,20,22,16,19,21,13,22,15,14,18,20,13,18,16,15,19. a.calculate the mode b.what would you give as the pass mark? explain
asked by Anonymous 
biology
what is an enzyme?
asked by Anonymous 
english
Examples of hubris in the book? please and who is the most hubristic throughout the book
asked by Connecticut yankee by mark twain hubris? 
math
(x/8)+ (x/8)= 9/8
asked by bria 
Intro to health and disease
History of diabetes
asked by JIm 
science
Virginia wonders if a tree branch is rubbing the outside of the window. According to the scientific method , what should she do next? a) draw a conclusion b) gather evidence c) form a hypothesis d) experiment
asked by ant 
algebra 2
how to write this equation $45.00 is the total amount of money that i have to split. i need to buy meat one coast is 1.80 a pound and the other 1.00 per poung how can i write this equation to get the answer?
asked by yukary 
Math
A community college has 3,000 students and 90 instructors. The college plans that enrollment will be 3,500 next year. How many new instructors should be hired if the college wants to keep the same student to instructor ratio?
asked by Diane 
science
Select all the following that could be observations: a) the sound of the ocean b) the smell of perfume c) the way a tennis ball looks d) atoms I need help with this one because I'm kinda confused with this one because i think b and c are observations
asked by pam