Questions Asked on
December 1, 2010

math
1. You are debating about whether to buy a new computer for $800.00 or a refurbished computer with the same equipment for $640.00. If a savings account earns 4.5% APR interest, how much do you really save with a refurbished computer if you put the
asked by Donnie 
chemistry
2. A 350 mL buffer solution containing 0.15 M HF and 0.150 M NaF is reacted with sodium hydroxide. What mass of NaOH can this buffer neutralize before the pH rises above 4.0? If the same volume of buffer was 0.35 M in HF and 0.35 M in NaF then what mass of
asked by help 
social studies
what ar all the anwsers to florida studies weekly on week 13
asked by daniel 
honors physics
A 3.2 kg block is hanging stationary from the end of a vertical spring that is attached to the ceiling. The elastic potential energy of this spring/mass sytem is 2.1 J. What is the elastic potential energy of the system when the 3.2 kg block is replaced by
asked by tom 
english
at the end of chapter IV, Frankenstein pauses to moralize. What does he say about passion and how a person should deal with it?
asked by amanda 
physics
racing on a flat track, a car going 32 m/s rounds a curve 56m in radius. what is the car's centripetal acceleration?
asked by john 
Chemistry
the bond between which pair of elements is the least ionic in character ? (1) HF (2)HCl (3) HI (4) HO please help
asked by Anonymous 
chemistry
What is the bond order of the CO bond in acetone? a). 4 b). 1.5 c). 0.5 d). 1 e). 2
asked by gopi 
Finance
Fletcher Company's current stock price is $36.000, its last dividend was $2.40, and its required rate of return is 12%. If divends are expected to grow at a constant rate, g, in the future and if Rs is expected to remain at 12%, what is Fletcher's expected
asked by Jessy 
Chemistry
Please show me the steps..... At STP, 3.00 L of nitrogen gas contains the same number of molecules as A) 1.00 L of nitrogen gas B) 2.00 L of oxygen gas C) 3.00 L of chlorine gas D) 4.00 L of hydrogen gas
asked by Kiesha 
pre calculus
A parallelogram has a 70 degree angle and sides 6 cm and 10 cm long. How long are its diagonals?
asked by lelelelel 
6th grade
Of the sixthgrade students surveyed, 12% bring their lunches to school. Suppose 24 sixthgraders do this? How many sixthgrade are at the school?
asked by Anonymous 
chemistry help!
A sample of methane gas, CH4 was collected over water at 25 degrees celcius and 720 torr. The volume of the wet gas is 2.50L. What will be the volume of the dry methane at a standard pressure?
asked by samantha 
Calculus
Suppose that the machinery in question costs $104000 and earns profit at a continuous rate of $69000 per year. Use an interest rate of 9% per year, compounded continuously. When is the present value of the profit equal to the cost of the machinery? Round
asked by Erika 
chemistry
How do I draw the lewis structure for [PF5Cl] i'm getting confused on this one!! Please explain answer Thanks =))
asked by Stacy 
Chemistry
Draw the resonance structures for SeS2 and SiS2. There are 2 for SeS2 and 3 for SiS2. I really need help with this. If it can be explain with words, since pictures would be hard. Thanks!
asked by Alexis 
Calculas
A boat is pulled into a dock by means of a rope attached to a pulley on the dock. The rope is attached to the bow of the boat at a point 10 ft below the pulley. If the rope is pulled through the pulley at a rate of 20 ft/min, at what rate will the boat be
asked by Jimmy Larson 
Chemistry
Two solid objects, A and B, are placed in boiling water and allowed to come to temperature there. Each is then lifted out and placed in separate beakers containing 1000 g water at 10.0 degrees Celsius. Object A increases the water temperature by 3.50
asked by Samantha 
Chemistry
Calculate the amount of heat (in kJ) required to convert 87.5 g of water to steam at 100°C. (The molar heat of vaporizaion of water is 40.79 kJ/mol.)
asked by MC 
Physics
A golfer hits a golf ball at an angle of 35° above horizontal. If the initial velocity is 55 m/s, how long does the ball soar before it hits the ground?
asked by Elaina 
Chemistry
0.0020 mole of HCl is dossolved in water to make a 2000ml solution. Calculate the molarity of the HCl solution, the H30, and the pH. The H30 is the same as the molarity of the HCl solution.
asked by Susie 
Chemistry
A sample of 0.0020 mole of HCl is sissolved in water t omake a 2000ml solution. Calculate the molarity of the HCl solution, the (H30+) and the pH. For a strong acide such as HCl the (h30+) is the same as the molarity of the HCl solution. HCl +H20 Balanced
asked by Susie 
Finance
You are evaluating a proposed expansion of an existing subsidiary located in Switzerland. The cost of the expansion would be SF 32.4 million. The cash flows from the project would be SF 9 million per year for the next five years. The dollar required return
asked by James 
college
At the center of a 50 m diameter circular ice rink, a 75 kg skater traveling north at 2.5 m/s collides with and holds onto a 60 kg skater who had been heading west at 3.5 m/s. How long will it take them to get to the edge of the rink. Where will the reach
asked by charlotte 
Physics
The pistons in an internal combustion engine undergo a motion that is approximately simple harmonic. If the amplitude of motion is 3.8cm , and the engine runs at 1500rpm , find the maximum acceleration of the pistons. Find their maximum speed.
asked by Phy help! 
Chemistry
In the determination of melting points, why cant you use water instead of mineral oil?
asked by Ash 
stats
You are given the following information obtained from a random sample of 4 observations. 25 47 32 56 At a .05 level of significance, determine whether or not the mean of the population from which this sample was taken is significantly different from 48.
asked by sara 
physics
An equilateral triangle 10.0m on a side has a 1.00kg mass at one corner, a 2.00kg mass at another corner, and a 3.00kg mass at the third corner. Find the magnitude of the net force acting on the 1.00kg mass. Find the direction of the net force acting
asked by Phy help! 
physics
Two gerbils run in place with a linear speed of 0.60m/s on an exercise wheel that is shaped like a hoop.Find the angular momentum of the system if each gerbil has a mass of 0.22kg and the exercise wheel has a radius of 8.5 cm and a mass of 5.0 g.
asked by Anonymous 
Physics: Simple Harmonic Motion
A 10kg particle undergoes simple harmonic motion with an amplitude of 2.0mm, a maximum acceleration of 8.0x10^3 m/s^2, and an unknown phase constant (phi) What are: a.) the period of the motion b.) the maximum speed of the particle c.) total mechanical
asked by Greg 
Chemistry
Is hydrogen bonding strongest between molecules of H20 H2S H2Se or H2Te?
asked by Anonymous 
Chemistry
which atom has the least attraction for the electrons in a bond between that atom and an atom of hydrogen? (1) carbon (2)nitrogen (3)oxygen (4) fluorine
asked by Anonymous 
trig
Find the sign of the expression if the terminal point determined by t is in the given quadrant. cos t X sec t in any given quadrant
asked by Katie 
physics
A uniform 1.3kg rod that is 0.80 m long is suspended at rest from the ceiling by two springs, one at each end of the rod. Both springs hang straight down from the ceiling. The springs have identical lengths when they are unstretched. Their spring
asked by sammie 
Calculus
Redo problem 8 in section 6.3 of your textbook (page 288) assuming that the parents need $105000 in 9 years for college expenses, and that the bank account earns 9.25% compounded continuously. Round your answers to the nearest cent. (You may need to
asked by Brooke 
Chemistry
What mass of KCl is dissolved in 250. mL of a solution that is 4.00 % by mass/volume?
asked by Kiesha 
Math
The tides at cape Capstan, New Brunswick, change the depth of the water in the harbour. On one day in october, the tides have a high point of approximately 8m at 2 p.m and a low point of approximately 0.6m at 8 p.m. A particular sailboat has a draft of 2m.
asked by Anonymous 
math
justine has 162 red buttons,98 blue buttons,and 284 green buttons. she says she knows she has more than 500 buttons without adding.do you agree? explain.
asked by esha 
math
Your brother traveled 117 miles in 2.25 hours to come home for Christmas. What's the average speed that he was traveling?
asked by anna 
physics
Two blocks are connected by a massless rope that passes over a pulley. M1= 2 kg and M2= 4 kg. The pulley is 12cm in diameter and has a mass of 2kg. As the pulley turns, friction at the axle exerts a torque of magnitude 0.5 Nm. if the blocks are released
asked by Blanche 
physics
A 39.0kg child runs with a speed of 2.70m/s tangential to the rim of a stationary merrygoround . The merrygoround has a moment of inertia of 506 kg m^2 and a radius of 2.51m . When the child jumps onto the merrygoround, the entire system begins to
asked by ree 
physics
a positively charged light metal ball is suspended between two oppositely charged metal plates on an insulating thread. after being charged once. the plates are disconnected from the battery. describe the behavior of the ball. (the plates are not touching
asked by maria 
Physics
A bicycle wheel of radius .7m is rolling without slipping on a horizontal surface with an angular speed of 2 rev/s when the cyclist begins to uniformly apply the brakes. The bicycle stops in 5 s. Through how many revolutions did the wheel turn during the 5
asked by Kevin 
Calculus
assuming that you wish to have $19000 in 7 years and that the account earns 6% compounded continuously. Round your answer to the nearest cent. Answer:
asked by Brooke 
Phys help!!!!
A diving board length 5.60m that weighs 250N is supported by two pillars. One pillar is at the left end of the diving board,the other is distance 1.55m away . Find the magnitude of the force exerted by the left pillar when a 90.0kg diver stands at the far
asked by ree 
chemistry
An atom has a valence shell configuration of ns2p5. To which group of elements in the periodic table does it belong? transition metals Halogens alkaline earth metals alkaline metal
asked by Kristy 
Calculus
Company QRS generated a net profit between 1992 and 1997 at a rate approximated by 20 t + 264.5 million dollars per year, where t is the time in years since 1992. Find the value, in 1992, of QRS's net profit over the 5year period from 1992 to 1997. Assume
asked by Brooke 
chemistry
I completely understand Le Chateliers principle but I have no idea about these questions. They're due tomorrow so fast help would be appreciated. Why did adding water to the equilibrium involving CoCl_4_^2^ cause the color to change? Use Le Chateliers
asked by k 
physics
Two 6.7kg bowling balls, each with a radius of 0.14m , are in contact with one another.What is the gravitational attraction between the bowling balls?
asked by ginny 
PreCalc
The total electrical resistance R of two resistors connected in parallel with resistances R1 and R2 is given by 1/R=1/R1+1/R2. One resistor has a resistance of 2.3 ohms. Let x be the resistance of the second resistor. Express the total resistance R as a
asked by Linda 
MATH HOMEWORK
Find the circle circumference and circle area with a circles radius 10 inches I think the circles are is 314 but don't know the circumference.
asked by Nat 
maths
find the difference between the greatest and least value of function cos x+1/2cos2x1/3cos3x
asked by mathmagic 
Geometry
A tire has a diameter of 30 cm. How far does it travel in 5 revolutions? Use 3.14 for π(pi).
asked by Myung 
AP Chemistry
what is the number of moles of HCl in 50mL of 1.0M HCl
asked by Sam 
Math
Six cards numbered 1 through 6 are placed in a hat. One card is taken from the hat. The unit's digit of the sum of the numbers on the remaining cards are 9. What was the number on the card taken from the hat?
asked by Martha 
physics
An EF 151 GTA sits on the EF stool and rotates CCW with an initial speed of 60 rpm. After 28 revolutions he stops. Assuming constant acceleration, how long was he rotating?
asked by sandhu 
Trigonometry
A pilot is flying at 200 miles per hour (airspeed), and wants his flight path (course or actual direction) to be on a bearing of 237 degrees. A wind is blowing for the north at 40 miles per hour. Find the bearing he should fly, and find the plane's ground
asked by Monk 
Chemistry
Write the balanced equation and solubility product expression for the solubility equilibrium of Mn3(PO4)2: i thought the answer was Mn3(PO4)2 (s) = Mn^2+(aq) + (PO4)2 ^3 (aq) but that's not right. then for the Ksp expression i thought it was [Mn^2+]
asked by Jake 
Finance
If you bought a share of common stock, you would probably expect to receive dividends plus an eventually capital gain. Would the distribution between the dividend yield and the capital gains yield be influenced by the firm's decision to pay more dividends
asked by Jessy 
statistics
According to a survey, only 15% of customers who visited the web site of a major retail store made a purchase. Random samples of size 50 are selected. a) What proportion of the samples will have less than 15% of customers who will make a purchase after
asked by Brodice 
Physics
17. A shell having a mass of 25kg is fired horizontally eastward from a cannon with a velcoity of 500m/s. If the mass of the cannon is 1000kg, what is the magnitude and direction of the velocity of recoil? 18. A bomb having a mass of 8kg explodes into two
asked by James Caulfield 
Physics
Latent heat question: Your car's windshield is covered with a .58 cm thick layer of ice. The ice has an area of 1.6m^2. If the temperature of the ice is 2C, how much heat is required to melt all the ice?
asked by Anonymous 
5th grade
For each right triangle, draw the rectangle made by drawing sides opposite the two shorter sides in the triangle. Find the area of each rectangle. 9cm height 4cm width How does the area of each rectangle relate to the area of either triangle inside it?
asked by Danielle 
Physics
A diving board length 5.60m that weighs 250N is supported by two pillars. One pillar is at the left end of the diving board, as shown below; the other is distance 1.55m away . Find the magnitude of the force exerted by the left pillar when a 90.0kg diver
asked by ree 
physics
the negative charge distribution over the surface of two isolated spheres is depicted in the diagram. one of the spheres is made of copper and the other is of rubber. identify the sphere that depicts the charge distribution of copper and that of rubber.
asked by maria 
physics
a 150 grain .3006 bullet has a mass of 0.01 kg and a muzzle velocity of 900 m/s. If it takes 1 ms(millisecond) to travel down the barrel, what is the average force acting on the bullet?
asked by jc 
physics problem ???
A projectile is ejected from a 25m high tower with a velocity of 40 m/s at an angle of 30 degrees to the horizontal first on Earth and then on Mars. What is the ratio of the time taken to hit the ground on Mars compared to Earth?? (Assume gravity of mars=
asked by mK 
Grammar
For each sentence write the action verb. Then write and circle each direct oblect. 1.Thornton Wilder used unconventional forms in his plays. used action, forms direct object 2. For eample, any producton of Our Town requires very few props. requires action,
asked by TiffanyJ 
chemistry
An atom has a valence shell configuration of ns2p5. To which group of elements in the periodic table does it belong? transition metals Halogens alkaline earth metals alkaline metal
asked by Alexa 
9th grade
what is it called when chemicals that influence the way that neurons communicate communicate with each other
asked by m 
algebra
Find two possible numbers that differ by 8 and whose reciprocals differ by 1/6.
asked by Keith 
College Physics
An ambulance is approaching at 80 mph (35.8 m/s). If the siren produces a continuous 400 Hz tone, what frequency do you hear? Assume the speed of sound to be 340 m/s.
asked by Traci 
Geometry
Find the area (in square centimeters) of a triangular piece of cloth with a 14centimeter base and an 18centimeter height.
asked by Myung 
College Algebra
Only 27% of the carbon14 in a wooden bowl remains. How old is the bowl? (Carbon14 has a halflife of 5,700 years.)
asked by Laura Hieb 
Math
While spending 10 weeks at a university in Germany, Ayesha frequently had dinner with 5 of her classmates: Jack, Erik, Annalee, Peter, and Nola. She ate dinner with each of these classmates exactly 12 times. She ate dinner with every pair of them eight
asked by Amy 
calculus
what is the area of the region bounded by the curves y=x^2 , y=8x^2 , 4xy+12=0
asked by nicko 
Math
The population size, P, of owls (predators) in a certain region can be modelled by the function P(t) = 1000 + 100 sin (3.14t/12), where t represents the time in months. The population size, p, of mice (prey) in the same region is given by p(t) = 20 000 +
asked by Molly 
chemistry
For each of the following solutions, calculate the initial pH and the final pH after adding 0.010 mol of HCℓ. a) 500.0 mL of pure water i'm not sure how to do this question.. would the equation be h20+h30 equilibrium arrows h30+h20
asked by help 
physics
The cabin noise level of the new Airbus 380 is 5 decibels lower than that of a 747 Jumbo Jet. By what factor does the noise intensity decrease?
asked by john 
physics
It has been suggested that rotating cylinders about 10 mi long and 4.9 mi in diameter be placed in space and used as colonies. What angular speed must such a cylinder have so that the centripetal acceleration at its surface equals the freefall
asked by kaitlyn 
chemistry
how Many grams of copper(11) acetate monohydrate will you ned to prepare 10 mL of a 0.01 M solution?
asked by ken 
Precalculus
An observer 2 km from the launching pad observes a vertically ascending missile at an angle of elevation of 21 degrees. 5 seconds later the nagle has increased to 35 degrees. What was its average speed during this interval? If it keeps going vertically at
asked by Harchit 
Chemistry
Write the cell notation for the reaction below. Show your work. Cu+2(aq) + 2Ag(s) + 2Cl(aq) > Cu(s) + 2AgCl(s)
asked by Tomas 
7th grade Science
will an object with a density of 0.79g/mL float, sink, or remain suspended in water
asked by Aaliyah 
Physics
FIGURE: h t t p : / / g o o . g l / a 7 j C F The figure is a PV diagram for a reversible heat engine in which 1.0 mol of argon, a nearly ideal monatomic gas, is initially at STP (point a). Points b and c are on an isotherm at T = 423 K. Process ab is at
asked by Schnitzel 
physics/chem
what is the relationship between density and specific heat capacity? and why? i thought when density increase specific heat increase but it says that it is inversely proportional. thank you
asked by lizzy 
Finance
Carborundum Metals issues commercial paper with a face value of $1,000,000 and a maturity of three months. Carborundum receives net proceeds of $992,000 when it sells the paper. If the prime rate is 8% APR compounded quarterly, how much savings in interest
asked by KEVIN 
Chemistry
Write the word equations below as chemical equations and balance. copper + sulfuric acid yield copper(II) sulfate+ water + sulfur dioxide
asked by Pedro 
comm155
help me write a paragraph, using several sentences, to describe a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. Use at least five different pronouns in your sentences.
asked by queen 
geometry
Some irragation spray water in a circular pattern. you can adjust the nozzle to spray in certain directions. the nozzle in my diagram is set so it does not spray on the house. if the spray has a radius of 12 feet what is the approximate length of the arc
asked by Key 
algebra
A car generally depreciates 25% of its original value in the first year. A car is worth $27000 after the first year. What was its original cost?
asked by JESSICA 
physics
A 250 kg car starting from rest is pushed 30m. When the car reaches 30m, it’s traveling at a speed of 12m/s and it encounters 52N of friction. What is the acceleration of the car and what is the force of the push on the car?
asked by Alyssa 
Chemistry
when a calcium atom loses its valence electrons, the ion formed has an electron configuration that is the same as an atom of (1) Cl (2) Ar (3) K (4) Sc i think its 2 am i right ?
asked by Anonymous 
stat
1. The amount of pyridoxine (in grams) per multiple vitamin is normally distributed with = 110 grams and = 25 grams. A sample of 25 vitamins is to be selected. So, 95% of all sample means will be greater than how many grams?
asked by Anonymous 
Chemistry
If you add acid or base to water how will the pH change.
asked by Ted 
chemistry
complete and balance the following equation: CoCl*6H2O+ NH4Cl+ NH3+ H2O > [Co(NH3)5Cl]Cl2+ H2O
asked by anon 
linear algebra
3. Suppose A is symmetric positive definite and Q is an orthogonal matrix (square with orthonormal columns). True or false (with a reason or counterexample)? a) (Q^(T))AQ is a diagonal matrix b) (Q^(T))AQ is a symmetric positive definite matrix c)
asked by michael 
business
who are the relevant market and nonmarket stakeholders in the cisco in the coyote valley case study
asked by moe 
Physics
I NEED HELP! Already answered on here but does not make sense/work. Please HELP! A 2.7 kg balloon is filled with helium ( density = 0.179 kg/m^3). If the balloon is a sphere with a radius of 5.2m , what is the maximum weight it can lift?
asked by Kristy 
6th grade,social studies
How do patterns of economic activities result in global interdependence?
asked by kristie(mom) 
physics
a currentcarrying wire is oriented at right angles to a uniform magnetic field. if the lenght of the wire is 0.50m and it experiences a force at 0.90n while carrying a current of 4.0a. what is the strength of the magnetic field?
asked by mj 
Math PLEASE HELP
Please finish these questions so I can check my answers. All my answers are at the bottom. Adding and subtracting mixed numbers. Please finish these questions. The answer must be reduced to lowest terms! 1. 3 2/5 + 6 1/5= 2. 4 2/5 + 1/10= 3. 2 3/12 + 2
asked by Pratigya 
Chemistry
How many grams of NaBr are contained in 85.0 mL of a 2.10 M NaBr solution? I'm not sure how to go about this..
asked by Roxie 
US history
What propelled Grant to Presidential victory in the 1868 election?
asked by sara 
text structure
People have used various methods to measure the depth of the ocean. Long ago sailors lowered a rope over the side of the ship. When the rope touched the bottom,they knew how deep the water was. Today scientists measure the depth of the water with an echo
asked by priscilla 
Chemistry
One of the most obvious ways to tell that a chemical reaction has occurred, as we all know, is that the color of 'stuff' changes. Ligand exchange reactions are one class of reactions where this is very evident, as exemplified by the color change of a green
asked by Stephanie 
Science
When the body becomes too warm blood vessels in the skin become _____?
asked by Ashley 
Physics HELP
How to find average speed with a given initial speed, theta, and delta x? I know average speed= total distance/total time, but I am given an initial speed, an angle and delta x. Mark throws a ball to Daniel with an initial speed of 20 m/s at an angle of 45
asked by Amm 
Finance
Crimini Foods is offered a $400,000 line of credit for six months at an APR of 10%. This loan has a loan origination fee of 2%. What is the actual sixmonth interest rate paid, expressed as an EAR
asked by KEVIN 
chemistry class
i have a Chemistry lab (level 2) final exam soon. our teacher told us that we would have % transmittance problems, can someone show me an examples (maybe from an online test) or a made up one, of what i might expect to find on my chemistry lab final? like
asked by jes 
8th grade science
A 1 kg ball moving at 3 m/s strikes a 2 kg ball and stops. If the 2kg ball was initially at rest, find its top speed after the collision
asked by tressie 
Statistics help needed despertaly!!!!!!
McMaster University researchers Margo Wilson and Martin Daly showed 209 male and female students pictures of attractive and notsoattractive people of the opposite sex. Each was then offered a chance to win a prize. They could accept a check for between
asked by Mandy 
English
1.The varsity team will play as soon as the junior varsity is finished. 2.Thirty laps is the most that I have ever swum. 3.My sister was going to take me to dinner, but her car wouldn't start. Identify each independent clause in each sentence and each
asked by Hayden 
arithmetic
sandra has eight coins which total 0.87. what coins does she have. [hint:make a chart or a list]
asked by cindy 
Precalculus
The weather bureau reports that a cold front has just passed Austin and is heading toward San Antonio at 42kph. Since you know that Antonio is 126 km from Austin, you first think you have 126/42=3 hours before the front arrives there. However, you realize
asked by Kelly 
Chemistry multiple choice
During today’s experiment we will produce hydrogen gas (H2) using zinc metal (Zn(s)) and hydrochloric acid (HCl). Which is a balanced net ionic equation illustrating this process? A. Zn (s) + 2 HCl (aq) > Zn2+ (aq) + H2 (g) + 2 Cl (aq) B. Zn (s) + 2
asked by Nana 
chemistry
The environmental protection agency (EPA) wanted to study the particular materials in the atmosphere in Bogus Basin at 7200 ft elevation. The sampled air rate was at 1.00 liter per minute and was allowed to run 24 hours per day for 30 days. At the end of
asked by jo 
adult education
describe why it is important to consider each domain in the study of adult development,
asked by Anonymous 
algebra
use a calculator to approximate the square root of 320, round to three decimal places.
asked by john 
Geometry
Find the area (in square centimeters) of a triangular piece of cloth with a 14centimeter base and an 18centimeter height.
asked by Myung 
business
Write a 200 to 300word description of a business scenario, either real or fictional, that depicts each of the following forms of business organization: o Jointstock company o Limited liability company o Partnership o Sole proprietorship
asked by jim 
chemistry
Write the orbital diagrams for the following atoms/ions. Label the orbitals. You can use gas notation for Sr2+, Zn and Se2. Sr2+ Se2
asked by Riley 
Finance
Gemini Real Estate is offered a $2 million line of credit for four months at an APR of 9%. This loan has a loan origination fee of 1.5%. What is the actual fourmonth interest rate paid, expressed as an EAR
asked by KEVIN 
Math
Let h represent the number of hours Shaunda spent on homework last week. 1.Zach spent half as much time on his homework as shaunda had on hers.Write an expression for the number of hours he spent.
asked by ursula 
geometry
in a rhombus PQRS PQ=y+8, QS=4y7.Find PQ
asked by joey 
Chemistry
How will the boiling point of a substance be affected by increasing the atmospheric pressure? How will the boiling point of a substance be affected by decreasing the atmospheric pressure?
asked by Ash 
Chemistry
you were asked to determine the melting point of an unknown compound in order to identify at as one of the compounds you had previously examined. What else could you have done to make sure that your unknown was indeed the compound you believed it to be,
asked by Ash 
math
use each digit from 1 to 9 to make each line sum to 15. use each digit once
asked by cindy 
Physics
I have a question about the International Space StationIts been orbiting earth at 350kmIf the radius of the earth is 6,370 km, what is the period of orbit for the Space Station? Secondly, if it was moved to a geosynchronous orbit, what would the new
asked by Julie 
statistics
A newspaper survey found that 65% of readers found online tutorials useful. If a random sample of 9 readers is selected, compute the standard deviation of the probability distribution.
asked by me 
Calculus 2
A manufacturer sells two products, one at a price of $3000 a unit and the other at a price of $12000 a unit. A quantity q1 of the first product and q2 of the second product are sold at a total cost of $5000 to the manufacturer. Express the manufacturer's
asked by Billy 
chemisty
A nitric acid solution is neutralized using sodium hydroxide. How many grams of sodium hydroxide are needed to neutralize 5.50 L of 1.200 M nitric acid solution? HNO3 (aq) + NaOH (aq) → H2O (l) + NaNO3 (aq)
asked by silent 
chemistry
what is the pH of an 0.155M aqueous solution of acetic acid if the Ka is 1.8 EE 5?
asked by Anonymous 
Geometry
You are wallpapering two walls of a room. One wall measures 15 ft by 12 ft and the other measures 9 ft by 12 ft. The wall paper costs $19.40 per roll, and each roll covers 50 square feet. What does it cost to cover the two walls?
asked by Myung 
algebra
If y=35+0.8x gives the distance of the sports car from Flint after x minutes. find the following a. How far is the sports car from Flint after 25 minutes? b.How long will it take until the sports car is 75 miles from Flint? Show how to find the solution
asked by confused and need an answer. 
science
if 8 g of vinegar is added to baking soda to form 24 g of c02 and other products, how much baking soda did you need?
asked by joe 
Math
If a shopkeeper sold 15 boxes of pencils on Mon and Tues. He sold 3 more boxes on Mon then on Tues. There were 12 pencils in each box. How many pencils did he sell on Monday.
asked by Kelsey 
Math
I need SUPER help! A famer has to buy 100 animals, but can only spend exactly $5.00. He has to buy at least on of each animal a chcken for 0.01$, a cow for 0.10$ and a horse for 0.50$!!!! PLease HElp IT means so much I need it by Midnight tonight or else i
asked by lia mowin 
Chemistry
Can anyone just show me the steps and point me in the right direction??? A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?
asked by Anonymous 
physics
17. A shell having a mass of 25kg is fired horizontally eastward from a cannon with a velcoity of 500m/s. If the mass of the cannon is 1000kg, what is the magnitude and direction of the velocity of recoil? 18. A bomb having a mass of 8kg explodes into two
asked by James Caulfield 
PHYSICS!!!
By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?
asked by Molly 
english
how can i interprete this quote: "fear always springs from ignorance" by: ralph waldo emerson
asked by bia 
Religon and global culture
I have to write an essay by completing this sentence: "In the current global culture, religion should..." And since I have to write a lot, I thought I'd start out by making points of what I feel about religion in today's world. It is of vital importance Is
asked by yfaridi1 
PreCalcs
Amount after time t A (t) = yobt Where: yo = starting amount b = growth constant (percent remaining) t = number of time units In the 1978 the population of blue whale in the southern hemisphere was thought to number 5000. Since whaling has been outlawed,
asked by Kate 
calc2
A manufacturer sells two products, one at a price of $3000 a unit and the other at a price of $12000 a unit. A quantity q1 of the first product and q2 of the second product are sold at a total cost of $5000 to the manufacturer. Express the manufacturer's
asked by william 
Chemistry
Select the options below that are correct for diamagnetism and paramagnetism. A) Most elements and some compounds are paramagnetic. B) Individual magnetic moments in paramagnetic substances cancel each other. C) Diamagnetism is observed as repulsion in a
asked by Angeleque 
math
why the formula for the area of a trapezoid this A=1/2 x h x(a+b)
asked by kate 
algebra
Sammy can complete a programming job in 8 hours if he works alone. Marilyn can complete the same programming job in 12 hours if she works alone. If Sammy and Marilyn work together, how many hours and minutes will they complete the job
asked by ann caples 
English
Can you please check the following senteces for me? Thank you very much 1) Give a brief description of the monster as referred to (?) by Dr Frankenstein to in Chapter 5 of Mary Shelley's Frankenstein. Explain then what the monster stands for and what
asked by Franco 
Calculus
using the following information in place of that in the book. The machine earns the company revenue at a continuous rate of 50000 t + 35000 dollars per year during the first six months of operation, and at the continuous rate of $60000 per year after the
asked by Erika 
EXP105: Personal Dimensions of Education (ABA1047G
Identify at least two skills that you that you would like to improve. Provide details on what actions you will do to develop each skill. Who do you consider to be a part of your personal support system? How do they offer support and encouragement to you?
asked by justin 
English 12 U
Please ignore my previous post, I accidentally posted my rough draft Okay for English 12 U, I'm doing a literary essay for Life of Pi, by Yann Martel. The topic of my essay is Martel (author's) depiction of setting in Canada and India. (Role of setting)
asked by Andy 
chem
The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X
asked by nicki 
English(how is it?)
Should there be abolishment of the 12th grade? To some this may sound like a good idea in theory. But there could be too many complications that come along as well. Some feel as if the 12th grade should be abolished in favor of job training. As well as
asked by Sarah 
physics
Posted by sandhu on Tuesday, November 30, 2010 at 7:38pm. Posted by sandhu on Tuesday, November 30, 2010 at 1:17am. A T is made of two identical 740 g thin solid rods. The moment of inertia of the T about an axis perpendicular to the screen through point
asked by sandhu 
Chemistry
If a student working on the upcoming experiment fully ionizes 2.80 g of Zn(s) in an excess of aqueous HCl, how many moles of H2 (g) will be produced?
asked by Nana 
math
use each digit from 1 to 9 to make each line sum to 15. se each digit once.
asked by cindy 
Physics
An object is attached to a horizontal spring. It is initially displaced by distance Δx from the equilibrium position and then released from rest. At what point of its motion along the xaxis reaches the object its highest total energy a) At the
asked by Michael 
Physics
A mass of 1 kg is hanging from a spring with a spring constant of 4 N/m. At a distance of 0.2 m above the equilibrium it has a velocity of 0.8 m/s in the downward direction. What is the amplitude of the oscillation?
asked by Laura 
chem
Calculate the number of moles of the indicated ion present in each of the following solutions. Na+ ion in 1.20 L of 0.183 M Na2SO4 solution = ?mol
asked by shawn 
Algebra
Solve: 10
asked by Christina 
adult ed geometry
Adult education due to the level thanks  The distance between Sue and a dude ranch was 30 mi. straight across a rattlesnakeinfested canyon. Instead of crossing the canyon, she hiked due north for a long time and then hiked due east for a shorter leg of
asked by antonne 
Physics
An object has a mass of 0.3 kg. It undergoes a simple harmonic motion. The amplitude of that motion is 0.09 m and the period is 0.36 s. What is the total energy of the object? my answer: 4.11 J period=1/f.  omega=2*pi*f=17.45 only kinetic energy
asked by Michael 
math
sue and bob earned 24.00 sue earned twice as much how much money did each earn?
asked by quinn 
chemistry
I need an edible suspension HELP!!! :o plz?? :)
asked by lizaperez956 
english
how can i interpret this qyote; " fear always springs from ignorance". i have to write an essay for this. please help interpret this. i have to do a paragraph.
asked by Anonymous 
chemistry
determin the formal charge on each atom in the following molecules and ions. (a)OSCL2 (b)FSO3
asked by ashley 
Physics
FIGURE: h t t p : / / g o o . g l / a 7 j C F The figure is a PV diagram for a reversible heat engine in which 1.0 mol of argon, a nearly ideal monatomic gas, is initially at STP (point a). Points b and c are on an isotherm at T = 423 K. Process ab is at
asked by Elgoog 
Chem
could you tell me if these are right and help me with the other 2 I cant seem to get them to come out. Calculate the pH of each solution given the following [H3O+] or [OH ] values. (a) [H3O+] = 1.5 108 M 1.0E7 is what I got (b) [H3O+] = 5.3 106 M (c)
asked by Carrie 
Social Studies
I need help with these definitions! Thanks!! Just some or all would be nice!! Cyrus the Great Zoroastrianism Sparta & Athens Peloponnesian War Macedon Philip of Macedon Alexander the Great Hellenism Hellenistic culture Carthage & Punic Wars Julius Caesar
asked by Herty 
math
Hanna bought 4 pencils for $.09/each, two notebooks for $1.58 each, and one pack of paper for $3.17 each. She paid with $10 and got $3.58 in change. Is this amount correct, and if not, why? Just need the WHY part of the answer. The correct change should be
asked by Shannon 
Chemistry Kinetics
If I had the equation H2 + I2 > 2HI could I write the rate of reaction as d[H2 + I2]/dt = k[H2]^x[I2]^y were x is the order of reaction with respect to x and y is just the order of reaction with respect to y thanks
asked by Kate 
geometry
In triangle ABC, the lenght of AB is 24. In the triangle, a soccession of midsegments are formed. How do you find the nth stage?
asked by Janet 
Chemistry
Select the options below that are correct for diamagnetism and paramagnetism. A) Most elements and some compounds are paramagnetic. B) Individual magnetic moments in paramagnetic substances cancel each other. C) Diamagnetism is observed as repulsion in a
asked by Kay 
arithmetic
jack wants to buy an equal number of green,blue and white ornarments for his holiday tree.green ornarments come in packages of3; blue ornarments come in packages of 6; the white ones come in packages of 4.what is the least number of packages of each color
asked by cindy 
physics
find the kinetic energy of an 8kg mass moving at 5m/s
asked by shellie 
W.H.Atwell
Does 2Na 2H2O 2NaOH H2 shows that the total mass during a chemical reaction stays the same?
asked by Brittany 
Algebra 1
After 5 lessons of French, you have learned 20 vocab words. After 10 lessons, you know 40 vocab words. Write an equation that gives the number of vocabulary words you know as a function of the number of the lessons you have had. Label variables. So, 5x+20
asked by Allyson 
finance
equipment cost $20,000 and is financed over a period of five years at an interest rate of 12%...What is the monthly payment...What is the loan balance at the end of four years and how much interest will have been paid on the loan after five years?
asked by Loretta 
physics
A small boy is trying to open a 50 kg door with a height of 2 meters and a width of 75 centimeters. If he applies a force of 5 Newtons at the door handle (5 cm from the edge), how long will it take to open the door so that it's completely open
asked by charlotte 
Finance
John has a chocie to make between two investment opportunities. investment 1, would bear a interest of 12.5% over a period of 5 years but is taxable. investment 2 would bear an interest of 8% over the same period but is tax exempt. If john 's taxable rate
asked by megan 
art history
Orientalism and Postcolonial. I am going to write an essay around 2000  3000 words academic essay on Orientalism and Postcolonial. I need some advices and suggestion for some thesis that I have to pay attention on, and I will appreciate if someone can
asked by Cheuk 
Calculus 2
A manufacturer sells two products, one at a price of $3000 a unit and the other at a price of $12000 a unit. A quantity q1 of the first product and q2 of the second product are sold at a total cost of $5000 to the manufacturer. Express the manufacturer's
asked by Billy 
math
A foyer is 8 feet by 8 feet the tiles are 4 square feet how many tiles will fill the space
asked by donna 
Physics
Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the
asked by Sara 
Math
Jill has 4 pints of water in a 4pint bucket. Jack has an empty 1pint bucket and an empty 3pint bucket. None of the buckets has measurement markings. How can they divide the water so each has exactly 2 pints?
asked by Roni 
Math PLEASE HELP
No one was answering my questions for the first question I posted so I posted it again. answers for 12345: 1. 9 3/5 2. 4 1/2 3. 4 3/4 4. still 7 6/9 5. still 10 16/18
asked by Pratigya 
college
You transfer a sample of gas at 17 degrees celsius for a volume of 5.86 L and 1.10 atm to a container at 37 degrees celsius that has a pressure of 1.10 atm. what is the new volume of gas?
asked by dayton 
Math126
A Community College has 3,000 student 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 students to instructor ratio?
asked by Kelli 
English
1.Agba fed milk and honey to the newborn colt. 2.Sometimes the playful colt bit Agba's fingers. Identify the direct objects 1.milk, honey 2.fingers'
asked by Tracy 
market and sales
the most common basis for market segmentation is demographics psychographics media usage cost analysis
asked by jennie 
algebra
2y+x=2y8
asked by adrien 
chemistry
If it takes 20 h to convert 100 g of reactant A to product C at 20 degrees Celcius, approximately how many minutes would it take at 90 degrees Celcius? (a formula for this would be so helpful) Thanks!
asked by Marta 
Chemistry
When finding uncertainties in measurements, I know that if you are adding or subtracting, you must add the uncertainties of the two values. But what do I do if I multiply/divide?
asked by L 
English
The noise from the ducks in the pond was soothing. I have to Underline each independent clause and subordinate clause twice then tell if the sentence is simple, compound, complex, compoundcomplex 1.The noise from the ducks was soothing=indep clause in the
asked by Hayden 
Macroeconomics
For each of the following possible events, indicate whether the demand or supply curve for dollars would shift, the direction of the shift, the determinant of the change, the inflow or outflow effect on the balance of payments (and the specific account
asked by Sandy Ben 
math
lonny has 15$ to buy some groceroies for his mom.milk costs $2.39,bread costs $1.29.eggs costs $0.79,and mayonnaise costs $2.49. if he buys one of each item, can he expect to get $10 in change?
asked by cindy 
Finance
You are a finance manager in Big Pen Ltd. The degree of operating leverage of your company is 5' The degree of financial leverage of your company is 3. your Managing Director has found that the degree of operating leverage and the degree of financial
asked by SEWmi 
Poem of wisdom
hey, I was wondering if you could lend me some help with the poem I want to create. I want to create a poem with wisdom in it. I can't seem to think of a good theme.... I actually want to create a poem on nature. Like what I want to say is that Nature is
asked by Desoray 
Chemistry
When determining boiling points, why would you need to repeat your experiment if your sample completely vaporized before you were able to obtain a constant temperature?
asked by Ash 
Algebra uno help please. :)
Write an equation of the line that passes through the point ( 8,3) and has the slope of 1/4 So, I think you would write it as Y=1/4x+B and, you'd plug in 8 for the x, and 1 for the y. So you'd get 1=1/4(4) + B And you'd get.. 1=1+B So, subtract one from
asked by Allyson 
huckleberry finn
what is the definition of dauphin this huckleberry finn? I searched on the internet but there were so many i didn't know which one was used in the book
asked by hannah 
6th grade
What are scientific independent and dependent variables?
asked by Jasmin Villegas 
MATHS
A man is 2 years younger than his wife.Their current ages both are prime numbers. Next year his wife age will be a multiple of 11.And the husband will be the product of two consecutives. How old are both ?
asked by JJ 
trig
solve: 1/m=m34/2m^2
asked by ada 
math
the digits 1 through 9 are used in this subtraction problem   452 = 3
asked by Hollie 
physics
I'm just having trouble setting up this problem. It's based on a picture so I'll describe it: There is an open ladder standing on the floor with a person on the third step on one side. There is a crossbar attached to the two sides of the ladder and the
asked by Meghan 
Trig/algebra2
abbc+addc/ab+bc+ad+dc Simplify and state the domain
asked by James Caulfield 
Religion and Global culture
How's this so far? In the current global culture, religion should be understood correctly and valued as one of the defining factors. If we look today at various global issues today, especially the key issues relating to ties between various countries,
asked by yfaridi1 
Statistics
How do I solve by the elimination method 9xy=75 x+y=15
asked by Gary 
College Physics
Rather than rotate completely horizontally, a carousel rotates at an angle of 10° from horizontal, with a constant angular velocity of 1.571 RAD/s. A box is placed 1.5 m from the axis of rotation. What’s the minimum coefficient of static friction so the
asked by Sara 
Chemistry
If you add acid or base to a buffer, how will the pH change.
asked by Anne 
science
A place or object used for comparion to determine whether something is in motion is called what?
asked by abby 
science
A balloon at contains 0.5 L of gas at a constant pressure of 1.0 atm. If the pressure is increased to 3.0 atm, what will be the volume of the gas?
asked by Anonymous 
ms.sue
if y+2=13 woudlnt you add 2 too both sides amd get y=15?
asked by josh 
adult ed geometry
Adult education due to the level thanks  An arc ABC is one quarter of a circle with center B and radius 6. Rectangle EDFB is inscribed in ABC. If ED + DF = 8, find the perimeter ADCFE. Round your answer to the nearest hundredth.
asked by antonne 
Pjysics Help!!!
An organ pipe is open at one end and has a length of 3 m. What is its fundamental frequency if the speed of sound is 336 m/s?
asked by Andrew 
US history
How did the HayesTilden deal lead to the Jim Crow laws in the South?
asked by anthony 
statistics
Find a number 't' such that the probability that the sample mean will differ from the population mean by at least 't' is not greater than 0.05 if the sample size is 100 and sigma is 3
asked by Anonymous 
Algebra
Is there an instance in which a linear equation is not a function?
asked by Cathy 
8th grade language arts
how do i use the word cantankerous as a mispaced modifier?
asked by morgan 
comm155
help me write a paragraph, using several sentences, to describe a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. Use at least five different pronouns in your sentences.
asked by queen 
Math
in parralleloggran WXYX m/_Y = 65 What are the measurea of /_W , /_X, and /_Z in degrees?? /_= angle
asked by Bri 
child care
1.When properly executed, the behavior management strategy known as timeout becomes(a) A. a positive reinforcer. B. more effective than logical consequences. C. a conversation between child and adult. D. suitable punishment for misbehavior. 2. Which of
asked by sara 
12th grade math
State the asymptote of the function g(x)=6^x9
asked by Chrisy Morris 
math
3x^2+11x+5=15?
asked by Ericka 
physics
Determine the acceleration and normal force of system below. Assume no friction, the mass equal to 10.0 kg and the angle equal to 60.0 degrees. Assume gravity equals 9.8 m/s/s. The picture looks like a right triangle with a box sliding down it. I am a 9th
asked by Anonymous 
world lit
Which word did not originate from those used in various occupation? 1.seasons 2.person 3.tease 4.broker
asked by carl 
geometry
Use SAS (SideAngleSide congruence) to explain why triangle WXY congruent to triangle WZY
asked by phoebe 
spanish
Direct + indirect object pronoun –¿Les estás diciendo la verdad? –¡Claro que estoy ________! ??
asked by AYUDA ME PORFAVOR!! :) 
math
i have adhd,i need the best way to learn how to convert percentages to fractions. I have 13% 18% 44% & 80% my mom has been out of school a while and doesnt feel im learning in a way i can understand i got the answers 1/8 1/5 2/5 & 4/5 are these correct as
asked by laevon 
college
Use the Microsoft Web site microsoft. com/ windows/ compatibility to research whether a home or lab PC that does not have Windows Vista installed qualifies for Vista. Fill in the following table and print the Web pages showing whether each hardware device
asked by Anonymous 
Geometry
You are wallpapering two walls of a room. One wall measures 15 ft by 12 ft and the other measures 9 ft by 12 ft. The wall paper costs $19.40 per roll, and each roll covers 50 square feet. What does it cost to cover the two walls?
asked by Myung 
Science
The pigment melanin in the skin functions to a. Produce new living cells in the epidermis b.help protect the skin fron sunburn c. Keep water within the skin
asked by Ashley 
Statistics  PLEASE HELP ME
McMaster University researchers Margo Wilson and Martin Daly showed 209 male and female students pictures of attractive and notsoattractive people of the opposite sex. Each was then offered a chance to win a prize. They could accept a check for between
asked by Kelly 
college
Maximize P = x + 16y  z subject to 2x + y + z 14 4x + 2y + 3z 28 2x + 5y + 5z 30 x 0, y 0, z 0
asked by Anonymous 
PhysicsPlease help
I have a question about the International Space StationIts been orbiting earth at 350kmIf the radius of the earth is 6,370 km, what is the period of orbit for the Space Station? Secondly, if it was moved to a geosynchronous orbit, what would the new
asked by Julie 
Chem
How many orbitals have the values n_3=4 and l_3=3 ? How many orbitals have the values n=4, l=3, and ml=2?
asked by Kay 
SMU
Ans: Machines are used to pack sugar into packets supposedly containing 1.20 kg each. On testing a large number of packets over a long period of time, it was found that the mean weight of the packets was 1.24 kg and the standard deviation was 0.04 Kg. A
asked by Gunjan 
world history
how did the Aztec and the Inca built their empires/
asked by cynthia 
economic help!!!
what happens to an industry if a firm is making large economic profits?
asked by sammi 
11th grade
a 1000 kg car has a motor that exerts 1500 N of force to move it forward. a frictional force of 400 N opposes it's forward motion. calculate the acceleration of this car
asked by Anonymous 
chemistry
what is the molarity of an unknown HCI concentration if it requires 75ml of a 0.2 M NaOH solution?
asked by jo 
VB programming
This problem is creating code for a line chart.  Write a program to create the line chart. Use Table in 9.6: Table 9.6] Two year college enrollments (in thousands). 1960 1970 1980 1990 2000  Male 283 1375 2047 2233 2398
asked by Lee 
algebra1
given points : p (2,1) q (4,2) m(5,3) find the coordinates of a point n such that pq and mn are parallel find coordinate of a point k such that mk is perpendicular to pq
asked by chauneshia 
math
A whole circle is divided into thirds. Each third is what percent of the whole circle? (No remainder change to fraction)
asked by michelle 
Algebra help, check+ Help?
Advertising costs for the save more store increases by about 32,000 per year, 352,000 was spent on advenrtising in 1992, write an equation that gives the amount spent as a function of the number of years since 1980. So, you get. Y=32000x But, I don't know
asked by Allyson 
deforestation
send me 5 sentences about deforestation
asked by mani 
Chemistry
A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?
asked by Anonymous 
MATH
Perform the operation for each equation, if there is a solution (Matrices) [4k 8y ] [5k+6y 2k+1] [6z  3x]  [2z+5x z+4] [2k + 5a] [4k+6a 3a+2]
asked by Daria 
reimbisement methodologies
You're an HMo director. you would like to ensure that your managed care plan is meeting industry standards. what is one way that you can do this?
asked by kim 
english
Hello! I am listing gown my works cited for my MA paper and one of my sources is a Model Teaching Unit I found on the Internet. I cannot post you the link :/ So it is not a book and I do not know how to write it in my works cited Help?
asked by tee 
Math
Someone earns 6% commission on the value of each house he sells. His commission on a sale was $8700. What was the value of the house?
asked by Clammyson 
geometry
using a triangle how can i draw 5 lines for form 6 congruent triangles?
asked by jill 
Finance
What is the monthly payment of $200,000 is financed for 15 years at 7.5%?
asked by vicki 
algebra
Divide and Simplify : (t3)/(t+2)÷(4t12)/(t+1)
asked by rebecca 
data analysis
after reviewing the Nursing Management (2006) article, what would you recommendations in defining database specifications, scope, development, implementation, and maintenance?
asked by Anonymous 
French
I need 10 sens. translated to french.. 1. how are you today 2. very well how about you 3. i love you 4. nice to meet you 5. i am so bored 6. I love to play gymnasics but hate to play soccor 7. What are up up 2? 8. Im so happy 9. Why are you so mad 10. Yes
asked by Bailee 
Chemistry
When determining boiling points, why would you need to repeat your experiment if your sample completely vaporized before you were able to obtain a constant temperature?
asked by Ash 
Math
Aa square and a triangle have equal areas. If a side of the square is 10 inches and the base of the triangle is 10 inches, what is the height of the triangle?
asked by Gigi 
Science
True or false A spurt if blodd flowing through arteries makes the arteries CONTRACT? if false what is the correct word?
asked by Please Help 
Physics
Hi, I have a question for physics An object with mass m = 20 kg is released from a height h = 60 m above the ground. After 2 seconds, the object's quantity of energy Thanks for your help mvh Oddbjørn
asked by Oddbjørn 
English
1.If so, then you probably know some stories by Marguerite Henry. 2.Her books about horses have thrilled readers for more than forty years. 3.Henry wrote many popular books, such as Misty of Chincoteague and King of the wind. 4.Her book King of the Wind
asked by Tracy 
college
determine the size of the sample to be taken from a population with S.D. 10 if the probability of the sample mean differing from the population mean by more than 2, is less than 0.2
asked by Anonymous 
math
What does a snowflake have to do with math?
asked by me 
calculus
if the area of a triangle with the base 2F and height F2 is equal to F, compute F.
asked by Ashley 
chem
1. A single mole of AgNo3 weighs 169.88 grams. In order to make a 1M solution, how many grams of AgNo3 would need to be dissolved in 5oomL? How many moles do you need? moles = M x L. please help today
asked by moon 
geography
what are the three things that describes what a map is
asked by kirsten 
chemistry
How to know if in TLC and HPLC if it is going forward or reverse?
asked by Ben 
World history
The years augustus Caesar reigned? What military advantage did carthage have over rome?
asked by Cheyenne 
college
explain how the organism in a diagram has evolved physiologically to become suited to its environeme
asked by amanda 
Math fractions
How do you get the answer for addition with unlike denominators: 3/8 + 1/2=
asked by Vicky 
english
i need help writing an introductory paragraph on growing up
asked by ryne 
Math3rd grade
Round to estimate the sum of all the numbers in 14.
asked by Paul 
physics
Two speakers 14m apart are emitting tones at a frequency of 1020 Hz. what is the closest distance (in m) from one speaker, along the line connecting the speakers, at which the sound intensity will be zero?
asked by Dana 
english
In the following sentence, the comma is used correctly with an introductory clause: “Training for the upcoming tenmile marathon, Lizette includes more protein and complex carbohydrates in her diet.” (Points : 1) True False
asked by Anonymous 
math
what set of 7 numbers have the following landmarks'''' mode 21 median 24 maximum 35 range 20
asked by megan 
chemistry
In HPLC which column comes out first, if it is going forward or reverse? its a question on my final, please help?
asked by Ben 
1st grade
write the sentence correctally. the name of that girl who painted that daisy is joann reed
asked by honey 
chemistry
what is the retention time (RT) of polar and nonpolar stuff?
asked by jessice 
algebra
simplify square root of 234 x^8y^9
asked by Anonymous 
chemistry
how many grams of sodium nitrate can be dissolved in 200 g of waer at 10 Deg C?
asked by diane 
CALC
I just need help with changing the order of integration. I can do the actually integral by myself. Thank you :) int f(x,y) dydx where y bounds= 1 to e^x and x bounds= 0 to 4 I thought the new bounds were int f(x,y) dxdy x= 0 to log(y) y= 1 to e^4 Please
asked by Adam 
Physics
The 2010 Mustang GT accelerates from 0 to 60 mph in 5.2 seconds. What is the acceleration rate? in m/s/s?
asked by Rose 
Chemistry
A sample of oxygen gas has a volume of 8.00 L at 20.0 ° C and 700. torr. How many moles does the sample contain?
asked by Anonymous 
physics
what happens when light moves from a material with a lower index of refraction to another material with a higher index of refraction? please sho work and thank u
asked by maria 
algebra
A line passes through (7, –6) and (8, –5).
asked by Mar 
Beginning Chem.
A. What is the frequency of a photon with a wavelength of 8.35 multiplied by 105 m? (The speed of light in a vacuum is 2.998 multiplied by 108 m/s. Planck's constant is 6.626 multiplied by 1034 J·s.) B. What is the wavelength of a photon with a
asked by NeedHelp! 
Chemistry
The element X has an atomic mass of 12.80 amu. It is known to have two isotopes 12X and 13X. Which of the following is true about the relative abundancies of 12X and 13X? a) both isotopes occur with the same frequency. b)12X occurs more frequently than 13X
asked by Kayla 
Psychology
So my class watch this movie called Boys Do Not Cry (Boys Don't Cry) and now i have two write a 7 page paper. I am having some difficulties trying to answer this questions Please help me giving some ideas of what i could write. •Describe the sociosexual
asked by Yaneth 
4th grade
Terrance describes the amount pf money made based on the number of hours worked by the function rule y = 10h. Given this function, how much money does Terrance earn for each hour worked? Explain
asked by brandon 
Math
Baby Leanne is L inches tall.write expressions in terms of the variable L,to represent the heights in inches of these members. her mother,who is 15in. shorter than four times Leanna's height
asked by ursula 
social studies
romans were made up of threr different groups of people. who
asked by veronica 
English
Can you check this sentence, please? 1) The subtitle to the novel is emblematic of Frankenstein's being an overreacher. He has to keep his face covered because of his horrible scars.
asked by Franco 
English
Hello. I will really appreciate some help from a native speaker of English. Which word is correct in the following sentence: Both countries claim the four islands WHICH or THAT are known as... Maybe, both? And one more question. Is it possible to say: The
asked by Ilma 
Trig/algebra2
abbc+addc/ab+bc+ad+dc Simplify and state the domain
asked by James Caulfield 
Algebra 1
y=mx+b
asked by Mecenzie 
Physics
A 70 kg man just before contact with the ground has a speed of 5 m/s In a stifflegged landing he comes to a halt in 7ms (miliseconds). Keeping in mind that the average net force acting on the man includes both the force of the ground on the man and the
asked by Kevin 
Sociology
Which of the following is an example ofprejudice?John, who lives in Texas, believes that the US is the best country in the world, or Mary believes that all men are pigs?
asked by Shirley 
physics
A 20 gram ball is pushed horizontally off a ledge 30 meters high. How long in seconds until the ball hits the ground?
asked by Diamond 
math
i cant find these measurements 536 ml=_______L 38 ml=_______L
asked by M.P.L 
Algebra
y=mx+b solve for x
asked by Taylor 
Math
What is cubic feet = toin meaters?
asked by Bailee 
7th grade
find the next three numbers in the pattern 2/3, 1 5/12, 2 1/6, 2 11/12 _, _, _
asked by Ashley 
5th math
what is the mode for the following number? 9,5,3,6,5,2,4, please !show me how to do this problem> thank you!!
asked by pat 
social studies
What does this quote mean? “Why should the Indian be expected to plant corn, fence lands, build houses, or do anything but get food from day to day, when experience has taught him that the product of his labor will be seized by the white man tomorrow?
asked by patrick 
Math
Is 3/4 between 7/12 and 18/24 on the number line?
asked by Ashley 
physics
how many lunar radii are in one AU?
asked by rachel 
spelling
Satelites Is that spelled correctly?
asked by ray 
pre algebrahow
do you solve a negative fraction plus a posotive fraction?
asked by emma 
math
if 720 can be written as the product of five consecutive integers, determine the middle integer.
asked by Ashley 
Math
Observe that : 1/1*3= 1/3 1/1*3+ 1/3*5= 2/5 1/1*3+ 1/3*5+ 1/5*7= 3/7 1/1*3+ 1/3*5+ 1/5*7+ 1/7*9= 4/9 Come up with a formula s(n) for the above, for n is greater than or equal to 1. Prove it by mathematical induction
asked by Sarah 
math
what is a slope intercept?
asked by David 
math
how do i solve 4/r5+6/rt divided by 12/st
asked by james 
South America
How has geoghrgphy shaped the way people live in south america
asked by kimberly 
math
Synthesis sqrt(2*x^25*x12)
asked by Al 
Phy. Science
What is the state of matter when nonconvective rain leaves the cloud?
asked by Mimi 
Math
Write an expression that represents each question What is 2/3 of 3/8? How many 3/8 are in 2/3?
asked by Ashley 
english
Select the sentence that is punctuated correctly. (Points : 1) The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties. The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal
asked by Anonymous 
english
Select the sentence that is punctuated correctly. (Points : 1) The oil from Eucalyptus trees which are native, to Australia is known for its medicinal properties. The oil from Eucalyptus trees, which are native to Australia, is known for its medicinal
asked by Anonymous 
8 th grade math
2a+ab=c solve for a
asked by joe 
algebra 1
1/2x+2/3=1/8x3/2
asked by Anonymous 
algebra 1
1/2x+2/3=1/8x3/2
asked by Anonymous 
english
i need to put this words in plural Daisydaisies Daydaies Trenchtrenchies Discdiscies Boxboxies Glassglassies Skyskies Whishwhishies Branchbranchis Horsehorseies Powerpoweries Lunchlunchis
asked by 3 grade 
math
how do I rewrite using the distributive property 3^2 + (93) 3 x (24/8) + 2
asked by Justin 
History
How did the Monroe Doctrine affect the relationship between the United States and Latin America?
asked by Lola 
math
prove that the centroid of equilateral triagle divides the medians into 2:3 ratio
asked by shweta 
8th grade
I don't understand constant rate of change can you give me some examples. The graph I have shows the depth of the water in a vase over 8 days
asked by Abby 
Math
How to solve the simultaneous equations 3x + y = 17 and y = x + 1 ?
asked by Katie 
math
Sir pizza donated 14 pizzas to the sixth grade picnic. How many pizzas were there for each of the three classes of sixth graders? (No remainder change to fration)
asked by michelle 
chemistry
in outo engine whith no pollusion controls, about 5% of the fuel(assume 100%actane c8H18)is unburned .calculate the mass and volume ratio of Co to C8H18 in exhaust gas? 2C8H18+17O2 =16CO+18H2O
asked by david 
english
what is the synonyms of scissors?
asked by rahim 
Social Studies
What were one cause and one effect of the American Revolution?
asked by Mike 
math
Four welldefined social classes (1=low and 4=high) exist in a country. If X is a random variable giving the social class of the son of a father from social class 1, the distribution of X is as follows: we have a small chart that has son's class, X and a
asked by m 
Math
Baby Leanne is L inches tall.write expressions in terms of the variable L,to represent the heights in inches of these members. her father,who is 15 inches shorter than twice Kerry's height. Kerry's height:5in.
asked by ursula 
math
While performing a calculation, you divide a number by 5 two times to get the answer 12. You should have divided by 5 only once. What is the correct result of the calculation
asked by bb 
Psychology
So my class watch this movie called Boys Do Not Cry (Boys Don't Cry) and now i have two write a 7 page paper. I am having some difficulties trying to answer this questions Please help me giving some ideas of what i could write. •Describe the sociosexual
asked by Yaneth 
mifflin
informations about the articles of confederatiom
asked by ama 
5th grade
lonny has $15 to buysome groceries for his mom .milkcosts $2.39,bread costs $1.29,eggs costs $0.79, and mayonnaise costs $2.49. if he bys one of each item ,can he expect to get $10 in change?
asked by cindy 
Algebra
I am stuck and hope that you can help me... How do I solve 3x^2x4=0 by completing the square? Thank you so much!
asked by Tanya 
Math
Need help with the problem 25x^2=20x4 Thank you!!
asked by Sarah 
chem
how many moles of Si(OH)4 form when 4.01 moles of H2O react with an excess of SiCl4?
asked by sand 
Biology
This question refers to the replication cycle of viruses. Can anyone invent a drug that would reduce the severity of a viral infection, where one might block the cycle.
asked by Greg 
math
can you reduce the following if so what are the answers: 4/5 5/10 9/12 6/9 16/18 2/24 4/12 6/8 4/9 9/12 15/36
asked by Trixi 
PYSCIS!!!!
By how many decibels does the sound intensity from a point source decrease if you increase the distance to it by a factor 6?
asked by Molly 
chem
what is the name of ONO and what is its charge
asked by anon 
math
3over N x 4= 3 what is the value of N
asked by A.T. 
chem
How many orbitals have the values n3=4 and l3=3 How many orbitals have the values n=4, l=3, and ml=2
asked by Kay 
physical science
what is non convective rain?
asked by Jake 
Christian Couseling
What are the major themes of The Discipleship Counseling Handbook by Neil T. Anderson
asked by Marla 
math
If a mixture weighing 60g is divided into capsules of equal strength, each capsule will weigh how many grains
asked by artria 
Math
If T = 5, what is T ?
asked by Joe 
math
87b=6b+9
asked by josh 
math
Imagine you want to make a 2cm. by 2.5cm. What percent should you use?
asked by amy 
Math
a percentage bar graph is sometimes used like a circle graph. If the bar is 8 cm, how long is each piece?
asked by Brian 
math
what is the least common denominator of 1/12 and 4/5? is it 5? 12? 30? 60?
asked by julian 
english
what is the synonyms of series?
asked by rahim 
Math
If a person rode 45 miles stopping at certain intervals in 9 times and if the intervals were equally apart. How far apart were they?
asked by Princess 
math
1/2x=2
asked by josh 
Biology
Give an example of a tandem cluster and describe which protein it will produce.
asked by Ari 
economic help!!! please
what happens to an industry if a firm is making large economic profits?
asked by sammi 
algebra1
1+1/3a=6
asked by josh 
Psychology
You will also need to consider the impact of the condition on the individual and his immediate family members in terms of how this condition may influence the psychosocial, emotional, financial, and possibly legal status of the family. •Make an informed
asked by Yaneth 
math
6+5b=6b7
asked by josh 
Englis
1.Read King of the Wind, and learn more about the adventures of Agba and his horse. 2.Later, the boy and the horse left their home and traveled to England. 3.The head of the stables often mistreated Agba and the young colt. Identify each direct object
asked by Tracy 
math
1/3b=3 i know u would divide both sides by 1/3 and it would cancell out the 1/3 and when u divide 1/3 by 3 you will get 1/9 so u flip it u willl get 9 right?
asked by josh 
math
the circumference of a wheel is one yard. If the wheel is pushed half a mile, how many times will the wheel go around (1 mi = 5280 ft)
asked by Mike 
english
need a thesis for the play trifles my title is We Got Your Back
asked by nadine 
bio
any thing helps below write the formula which shows the sequence of events that results in the production of a new protein molecule. then explain what is happing in each step of the sequence.
asked by Anonymous 
6th grade
What are the 5 energy changes when a person jumps upward?
asked by Michelle 
math
change 4+4+3 into a multiplication sentence
asked by Daniel