Questions Asked on
May 10, 2013

Math
last years computer model is on sale for $799. you can add more memory to the computer. each chp of 8 megabytes of memory costs $25. how many megabytes can you add if you have at most $1,000 to spend? write and solve an inequaality
asked by Frost 
nclex RN
which book is good to study for nclex rn
asked by brenda 
Math Pre.Alg
What is $33,800 at 3.5% compounded semiannually for 5 years?
asked by Bardroy 
Math Pre.Alg
What is $33,800 at 3.5% compounded semiannually for 5 years?
asked by Bardroy 
Language
Read the poem and answer the questions that follow 1.There once was a cowboy named Ray 2. Who never had that much to say, 3. Except for the times 4. Stampedes stopped on a dime 5. When that cowboy named Ray hollered Hey 1.in which lines do you see
asked by Matthew 
algebra 2
A rubber ball is thrown 20 feet into the air. If it rebounds 3/5 of the height, how far will it have traveled after the fifth bounce?
asked by Sasha 
algebra 2
A rubber ball is thrown 20 feet into the air. If it rebounds 3/5 of the height, how far will it have traveled after the fifth bounce?
asked by EDNA 
statistica
What is the range of the values 2.0, 3.7, 4.9, 5.0, 5.7, 6.7, 8.5, and 9.0?
asked by x 
MSJH
When heated, elemental phosphorus, P4, produces phosphine, PH3, and phosphoric acid, H3PO4. How many grams of phosphine are produced if 56 grams of P4 have reacted?
asked by MS 
math
1(a) a rectangular plot is bounded at the back by a river. No fence is needed along the river and there is to be an opening in front of about 24 meters. If the cost of fencing in front is $1500 per meter and the cost of fencing on the sides is $1000 per
asked by gibbs 
PreCalculus
I'm currently working with parabolas, and I'm not sure if I am doing this specific problem correctly.. 12. x= y^26y+6 y= b/2a = 6/2(1)= 6/2= 3 x= (3)^2+6(3)+6 x= 33 y=3 (33,3)
asked by Caroline 
physics
Caculate the work done when a force of 20N strecthes a spring by 50mm
asked by Anonymous 
chemistry
for an aqueous solution having Calcl2 (2molar) and Mgcl2 (5molal) and specified gravity of solution is 1.145 calculate molality of chloride ion and molality if chloride ion.
asked by riya 
GrammarMs. Sue(:
12. Which of the following is the best opening sentence for a business letter that you want to sound fairly informal? A. Please be advised that I've just received your order. B. Your order of February 10 arrived in our office today. C. I am in receipt of
asked by Anonymous 
GrammarMs. Sue(:
16. Choose the connective that belongs in the blank in the following sentence. Everyone appeared to be having a good time. _______, my impressions may have been wrong. A. In other words B. Furthermore *C. Of course* D. In fact
asked by Anonymous 
iit jee
the total number of ways in which 5 balls of different colours can be distributed among 3 persons so that each person get at least one ball is?
asked by hemant 
biochemistry
Consider the following genes in a hypothetical bacterium: galA – encodes an enzyme that is required for cells to digest the sugar galactose argB – encodes an enzyme that is required for cells to produce the amino acid arginineYou grow cells of this
asked by Anonymous 
physics
Two carts with masses of 4.00 kg and 3.24 kg move toward each other on a frictionless track with speeds of 4.90 m/s and 3.35 m/s respectively. The carts stick together after colliding headon. Find the final speed.
asked by Anonymous 
Chemistry
under the same conditions of temperature and pressure , does hydrogen iodide and ammonia diffuse faster? calculate the ratio of the velocities
asked by Mari 
chem word problem
A balloon is filled with 14 L of gas at 302 K. What is its temperature in Kelvin when the volume expands to 20 L? Round to the nearest whole number. Don't forget the units.
asked by ty 
chem
If a gas is cooled from 323.0 K to 273.15 K and the volume is kept constant, what final pressure would result if the original pressure was 750.0 mm Hg? Round to the nearest tenth. Don't forget the units.
asked by nene 
chem
At a pressure of 2 atm, hydrogen gas occupies a volume of 8 L. What pressure must the gas be under if the volume is increased to 10 L? Don't forget the units.
asked by vonsha 
chem
If the pressure of the gas in a 2.31 L balloon is 0.120 atm and the volume increases to 7.14 L, what will be the final pressure of the air within the balloon? Round to the nearest hundredth. Don't forget the units.
asked by vonsha 
chem :(
If a gas is cooled from 323.0 K to 273.15 K and the volume is kept constant, what final pressure would result if the original pressure was 750.0 mm Hg? Round to the nearest tenth. Don't forget the units.
asked by nene 
chem
A 2.9 L sample of gas has a pressure of 5 atm and a temperature of 50 °C. What will be the new temperature in Kelvin if the volume is decreased to 2.4 L and the pressure decreased to 3 atm? Round to the nearest whole number. Don't forget the units.
asked by nene 
HELP!!!!!!!!!!!!!!
Three spheres of radius 10 are placed on a table all touching each other. A fourth sphere of radius 10 is placed so that it lies on top of the other three. The distance from the bottom of the fourth sphere to the table is h, and h^2=a/b, where a and b are
asked by birju 
Psychology
n a classroom experiment, students were asked to place one paper clip in each hand. They were then instructed to add paper clips to the left hand until they were certain that the clips in the left hand weighed more than the paper clips in the right hand.
asked by Angela 
Psychology
As a scientist, Carl is concerned with the intensity of lights in the modern human environment. In his research project, Group A consists of volunteers who have agreed to sleep each night for a week with a 150 watt light bulb hanging over their bed. Group
asked by Angela 
Psychology
When physical energy has resulted in a response in a sense organ, it is clear that: (Points: 5) perception has taken place. the activation is the result of stimulus. the brain has interpreted the event. a single isolated sense is now perceiving the event.
asked by Angela 
PreCalc : Verify the Identity
Verify the Identity: sin(x+π)/cos(x+3π/2) =tan^2xsec^2x I've done: sinxcosπ+cosxsinπ / cosxcos(3π/2)  sinxsin(3π/2) sinx(1) + cosx(0) / cosx(0) sinx(1) sinx/sinx What do I do from here? Or what did I do wrong?
asked by Phil HELP NEEDED ASAP 
PreCalc : Find the Exact Value of the Expression
Find the exact value of the expression without a calculator: sin(3π/4+5π/6) I've done: sin(9π/12 + 10π/12) =sin(19π/12) What do I do now? Im confused if that would just be the answer or what? Wouldnt the answer be numerical?
asked by Phil HELP NEEDED ASAP 
Psychology
Barry knew Alice was tired, but he was surprised that the argument between their threeyearold twin boys did not awaken her. She had not been asleep very long and occasionally changed her position, but did not wake. Alice is probably in: (Points: 5) stage
asked by Angela 
Psychology
Although someone who is hypnotized may be compliant and susceptible to suggestion, it is clear that: (Points: 5) they are pretending and know exactly what they are doing. they will be able to recall the directions and events which took place after they
asked by Angela 
Psychology
A physiological support of hypnosis as a different state of consciousness is: (Points: 5) rapid eye movement initiated when a person is hypnotized. a change in the electrical activity of the brain in hypnosis. the sense of time removed. reaction time slows
asked by Angela 
physical
A solid cylinder has a radius of 0.051 m and a height of 0.0030. The cylinder is composed of two different materials with mass densites of 1950 kg/m3. If each of the two materials occupies an equal volume, what is the mass of the cylinder?
asked by Janaiby 
geometry
find the area of an equilateral triangle with an apothem having a length of 4 feet. round to the nearest tenth
asked by Anonymous 
math
simplify sin(5402x) this is to do with trig
asked by allie 
economics
Suppose the demand and supply for milk are described by the following equations: QD = 600  100P; QS = 150 + 150P, where P is price in dollars, Q D is quantity demanded in millions of gallons per year, and Q S is quantity supplied in millions of gallons
asked by Suzy 
algebra
(a) of 3000 she makes 55 an hour (h) and how many hours will it take to have an account balance of 3220 a: a=3000+55h;3220 b: 3000+55h =a:5h c: 55+3000h= a=4hours d:a=3000 +55h;4hour
asked by jj 
algebra
(s) is at least 5 times as great as the number of bieber fans (b)
asked by jj 
chemistry
When heated, elemental phosphorus, P4, produces phosphine, PH3, and phosphoric acid, H3PO4. How many grams of phosphine are produced if 56 grams of P4 have react
asked by ms 
math
A salesman gets paid on commission, and his commission is based on how many units he sells during the month. If the salesman sells $1500 worth of units or less, he makes a flat commission of $900 plus 10% of the sale. If he sells more than $1500 worth of
asked by Jane 
College Chemistry 104
Students are attempting to construct a battery in the laboratory that will light up a light bulb. Compare the following lists prepared by students and determine which student will not be able to successfully build a "battery" that will light up the bulb.
asked by Claire 
la porte high school
An object travels horizontally at 15.00 meters per second off a cliff that is 12.00 meters tall. How far from the base of the cliff does the object land?
asked by stephanie 
math
Ursula spent a total of $52.34 on two new outfits. She bought two shirt for $12.99, a pair of pants for $18.50, and a skirt. If the sales tax was 7.5%, what was the cost of the skirt? Please solve and exlain. Thanks
asked by Jane 
Chemistry Question
Calculate the ∆G˚ for the oxidation of nickel in the following balanced reaction. 2[RhCl6]3(aq)+ 3Ni a 2Rh(s) + 3NiCl2(aq) + 6Cl(aq) E˚ for RhCl6 is 0.5V E˚ for Ni(s) is 0.25V
asked by Sandra 
math
What is the result when correctly solving the formula for the variable w when the formula for the perimeter P of a rectangle is P=2l + 2w? Is it w = (p2l)/2 If not, please explain. Thanks
asked by Jane 
math
Solve for the variable h: 5r  6h = m Is it h = 5/6m +r If not, please explain. Thanks
asked by Jane 
Lang. Arts
select the pronoun that belongs in the underlined space. 1.___ of the people in Sri Lanka are Sinhalese,2._______are Buddhist by tradition. A smaller percentage are Tamil, of Hindu background. Civil wars have torn apart the small nation,3._____is a bloody
asked by Cassie 
math
How would I figure out a random tile grid pattern for a room that is 25'1" in length and 12'7" in width with tile that is 16"x16" and 12"x12" with the majority being 12"x12"?
asked by Faith 
World Geography
1.Which of the following demographic characteristics distinguishes Europe's population from that of Asia? A.) More Europeans inhabit rural areas. B.) The European population is much younger. C.) Europeans are more concentration in urban areas. D.) Europe
asked by Kaitlyn 
Math
Write this equation as a logarithm of a power: w ln 4
asked by Fiona 
Math
What is the exact answer to cos^2x  sin^2x = 0 for between 0 and 2pi? I got x = pi/4 and x = 5pi/4. But the answer key says there are two additional answers which are 3pi/4 and 7pi/4. I don't know how to get these. Any help is much appreciated!
asked by Ann 
english 4
The swans in "The Wild Swans at Coole" most likely symbolize a. faithlessness b. fragility and purity c. the flight form life's problems d. beauty and timelessness thanks
asked by working hard 
math
A ball is kicked from ground level into the air. Its height, y, in feet after x seconds can be represented by the equation y=40x  16x^2. What is the total elapsed time, in seconds, from the time the ball is kicked until it reaches ground level again? I
asked by Jane 
CHEMISTRY Homework
What will be the products of the electrolysis of an aqueous solution of zirconium iodide (ZrI4)? (The electrodes themselves are platinum.)
asked by Anna 
CHEMISTRY Homework Assignment
Hi I noticed someone else put this question up, but I am having a hard time with this one. I HAVE NO IDEA WHAT TO DO. What will be the products of the electrolysis of an aqueous solution of zirconium iodide (ZrI4)? (The electrodes themselves are platinum.)
asked by Kendra 
Social Studies
How did the inventions of the late 1800s make it easier to do business?
asked by Anonymous 
English
Identify the incorrect word. Emma told Jim that his car was still in it's parking place next to our apartment. A.his B. it's C.our D.no error everyone keeps saying it is "it's" but isn't the incorrect word "our"...?
asked by Cassie  Please Help. 
Mothers Day!HELP!
Help! Im a16 year old teenage girl with no job..I need to make my mother some special with sentimental value for Mothers Day. I have no job for flowers or chocolates. So I'll have to give her something homemade.. A poem seems so cliché and over
asked by Somer 
math
when a number is added or subtracted with its double gives you 4 by 12.what are the numbers?
asked by lalaaaaaaaaa 
Physics
a transformer with 600 turns in the primary coil is connected to a 120v AC source. If the transformer is to have (3) separate secondary coils that need to give a) 2.5v, b) 6.0v, and c) 450v, then how many turns should each coil have?
asked by Jay 
Chemistry pH
What is the pH of a solution that is .60 M H2SO4 (Sulfuric acid) and 1.7 M HCOOH (formic acid).
asked by Karen 
life orientation
5 ways in which lifestyle diseases impact teenagers?
asked by f 
Physics
A 50 ohm resistor is connected in series with a 0.2H
asked by xerxes 
Physics
A 50 ohm resistor is connected in series with a 0.2 H inductor, a 40 microFarad capacitor, and an AC Generator yielding 120 v (RMS) at 60 Hz. Find A) the inductive reactance b) the capacitive reactance and c) the total reactance, the impedance Z, and the
asked by Sandra 
Physics: Dielectric Constant
A parallel plate capacitor has a capacitance of 9.1 μF when filled with a dielectric. The area of each plate is 2.0 m2 and the separation between the plates is 1.5 x 105 m. What is the dielectric constant of the dielectric?
asked by Phil HELP NEEDED ASAP 
Physics: Potential Difference
Two capacitors are identical, except that one is empty and the other is filled with a dielectric (k = 3.6). The empty capacitor is connected to a 15 V battery. What must be the potential difference across the plates of the capacitor filled with a
asked by Phil HELP NEEDED ASAP 
Physics: Capacitance of Capacitor
Capacitor A and capacitor B both have the same voltage across their plates. However, the energy of capacitor A can melt m kilograms of ice at 0 °C, while the energy of capacitor B can boil away the same amount of water at 100 °C. The capacitance of
asked by Phil HELP NEEDED ASAP 
Physics: Manitude of Surface Charge on Dielectric
An empty capacitor has a capacitance of 1.86 μF and is connected to a 12V battery. A dielectric material (κ = 4.5) is inserted between the plates of this capacitor. What is the magnitude of the surface charge on the dielectric that is adjacent to either
asked by Phil HELP NEEDED ASAP 
English
Does this sentence have correct parallelism? Using steam power helped people spin cotton and grind flour.
asked by Kate 
English  Poetry
What does Audre Lorde's poem School Note mean? Most notably, what does the last stanza, "My children play with skulls/ and remember / for the embattled / there is no place / that cannot be / home / nor is."?
asked by Mike 
math
New photo imaging techniques on computers allow artists to distort an image from its original shape. Figure 1 is a square image (X x X). Figure 2 is stretched 4 units wider and shrunk 4 units shorter than figure 1. (x+4)(X4). How many square units greater
asked by Jane 
Social Studies
What was the Post WWII Freedom Explosian?
asked by Cody Brown 
PreCalculus
I'm having trouble with this problem because I'm not sure what to do with the 1.. 21. (x5)^2+(y+2)^2=1 (x(5))^2+(y+2)^2= ???? center= (5,2) radius= ???
asked by Caroline 
life orientation
provide recommendations on how to address the human factor.
asked by Anonymous 
science
For the oxidation of glucose ( C6H12O6 + 2O2„³6H2O +6CO2), how many moles of O2 will it take to consume 6 moles of glucose.
asked by kameon 
math
You spin the spinner twice. draw a tree diagram and list sample spaces to show the possible outcomes. From that answer questions 1,2 and 3. The spinner is 4 equal parts for a, b, c ,d I know the tree diagram you Have a,b,c,d, and from each of those
asked by B6 
math
how do i find the measure of central angle rounded to the nearest degree then showing using graphs and degrees
asked by r 
math calculus
The demand function for a product is given by p = 10,000 [1 − (5/5 + e^−0.001x)] where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500. (Round your answers to
asked by sam 
math
simplify this polymomial polynomial 6g + 8k – 9g + 2k my answer 3g+10k
asked by polynominals 
math help please
12. (8x) x (3x^2) 5x^3 24x^2 24x^3 5x^2 13. (11z)^0 z 1 11 1 14. 14^4 1/14^4 56 1/14 1/14^4 My answer: 12. 24x^3 13. 1 14. 1/14
asked by Delilah 
Social Studies
How did the inventions of the late 1800s make it easier to do business?
asked by Anonymous 
Computer Science
Would like to know if this looks right Write a program that allows the user to input a total dollar amount for an online shopping order and computes and outputs the shipping cost based on the following schedule: Order Total Ship within USA Ship to Canada
asked by Legendirty 
social studies
what are some exploration thomas jefferson made, and thomas jefferson federal courts information
asked by mary 
Chemistry
77.0 mL of a 1.20 M solution is diluted to a total volume of 288 mL. A 144mL portion of that solution is diluted by adding 155 mL of water. What is the final concentration? Assume the volumes are additive.
asked by Gmp 
algebra
what expression is equivalent to 4z+3x
asked by Anonymous 
104 world civilizations 11
The economic exploitation of colonies included
asked by colleen 
HIS 104 civilizations 11 quiz
THE Monroe Doctrine emphasized
asked by colleen 
CHEMISTRY
The two halfreactions for the LeClanche dry cell battery are shown below. Describe the direction of spontaneous electron flow in this electrochemical cell. Zn(s) > Zn2+(aq) + 2e 2NH4+(aq) + 2e > 2NH3(g) + H2(g)
asked by Alicia 
grammar
adverbsit was first played by the Iroquois
asked by makiyqking 
HIS 104 WORLD CIVILIZATIONS 11 QUIZ
One of the results of the Industrial Revolution was Which of these was not a feature of working class life in early industrial societies The advantages that led Britain to the Industrial Revolution included
asked by colleen 
Phoenix
Projectile motions problems are some of the most important problems you will encounter in this course. Through this discussion, we will solve a projectile motion problem step by step Assume a projectile is launched from ground height over a flat plane, at
asked by Rick 
st130
security codes in fiji are made up of 4 digits. how many different 4 digit codes are possible . if the first digit should be one?
asked by jona 
trig identites
since sin2x+√3cos2x=2sin(2x+60) find the general solution for the equation sin2x+√3cosx=0 thank you
asked by phillip 
Algebra
A car rental agency advertised renting s car for %26.95 per day and @0.34 per mile. If David rents this car for 4 days how many whole miles can he drive on a $150 budget?
asked by Mary 
math help
) Brian has 96 feet of fencing to enclose a rectangular space in his yard for his dog. He wants the rectangle to be twice as long as it is wide. Write and solve an equation to find the dimensions of the rectangle.
asked by mich 
psycology
in order to increase self esteem ,experts say you should what
asked by sherry 
psycology
in order to increase self esteem ,experts say you should what
asked by sherry 
Physics
Temperature of a diatomic gas is 300k. If the moment of inertia of its molecules is 8.28*10^38 gmcm^2. Calculate their root mean square angular velocity.
asked by birju 
psy
what should one do order to increase self esteem experts
asked by sherry 
calculus
The demand function for a product is given by p = 10,000 [1 − (5/5 + e^−0.001x)] where p is the price per unit (in dollars) and x is the number of units sold. Find the numbers of units sold for prices of p = $1000 and p = $1500. (Round your answers to
asked by carol 
chemistry
A solution of ethanol, C2H5OH, is prepared by dissolving 25.0 mL of ethanol in enough water to give a total volume of 250.0 mL. What is the percentbyvolume concentration of ethanol?
asked by Adrian 
Calculus
Describe the following surface and give traces if available. x^(2)4z^(2)=4
asked by Liz 
math
What is the coefficient of x^4 in(x^2−x−2)^7?
asked by Anubhav 
Calculus help!
Describe the following surface and give traces where available: 16x^2 + 16y^2  9z^2 = 0
asked by Sarah 
chemistry
A solution contains 25.5 g of NaCl dissolved in sufficient water to give a total mass of 325.0 g. What is the molality of the solution
asked by Adrian 
Maths
Find the amount when princple is 29200,rate is 6%.time is 4 year and 3 months?
asked by Aman singh