Questions Asked on
February 13, 2013

Physics
Two horizontal forces, F1> and F2> , are acting on a box, but only F1>is shown in the drawing. F2> can point either to the right or to the left. The box moves only along the x axis. There is no friction between the box and the surface. Suppose that
asked by Randy 
linear momentum
an 85kg fisherman jumps from a dock into a 135kg rowboat at rest on the west side of the dock, if the velocity of the fisherman is 4.3m/s to the west as he lives the dock, what is the final velocity of the fisherman and the boat?
asked by twana 
Chemistry
A sample of gaseous PCl5 was introduced into an evacuated flask so that the pressure of pure PCl5 would be 0.54 atm at 425 K. However, PCl5 decomposes to gaseous PCl3 and Cl2, and the actual pressure in the flask was found to be 0.85 atm. Calculate Kp for
asked by Margaret 
Reading
Is this the correct word for each sentence 12. Lynn begged the bank to __ the overdraft charge of thirty dollars, telling them that it would entirely __ her savings. 34. In high school, Julio was voted "Most Likely to Become a Psychologist." It was the
asked by lisa 
english
Can someone please help, I'm supose to write explaining what advice one would give George and Lydia Hadley on how to be become better parents. I don't understand this passage so I don't know what to write. "I don’t know anything," he said, "except that
asked by matt 
7th grade math please help Ms. Sue
9. Name the triangles that are classified by angles. (1 point) right, scalene, isosceles scalene, isosceles, equilateral acute, right, obtuse obtuse, isosceles, acute 11. Name the quadrilaterals that have four equal sides. (1 point) rhombus, square square,
asked by Delilah 
Trig
A Ferris wheel is 40 meters in diameter and boarded from a platform that is 4 meters above the ground. The six o'clock position on the Ferris wheel is level with the loading platform. The wheel completes 1 full revolution in 2 minutes. How many minutes of
asked by Christine 
7th grade math please help Ms. Sue ASAP
14. Find the value of the missing angle. (It is a hexagon. In the picture, going counterclockwise, the angles are: 152, 85, 125, 135, 85, and "x" degree angles) 720º 120º 128º 138º I need help finding "x"! So far, the angles they have provided me add
asked by Delilah 
Calculating Rate Constants
I'm really stuck with this one. Here's the rate law and the data that is needed. I appreciate any help Rate= k[I2]X{[H+]Y[CH3COCH3]Z Column 1  Trial Column 2  Volume of 0.0010 M I2 Column 3  Volume of 0.050 M HCl Column 4  Volume of 1.0 M acetone
asked by Amy 
ratios
A mother wants to divide $680.00 among her children according to the ratio 2:4:6. The shares would be?
asked by wayne 
Math
There are 4 chocolate chip cookies and 12 oatmeal cookies in a jar. If you reach in an randomly choose 2 cookies without replacing the first, what is the probability that both will be chocolate chip? Thanks!
asked by Jonathon 
geometry
6. The isosceles trapezoid is part of an isosceles triangle with a 34° vertex angle. What is the measure of an acute base angle of the trapezoid? Of an obtuse base angle? The diagram is not drawn to scale. (1 point)73o; 107o 34o; 146o 73o; 146o 34o; 107o
asked by linda 
Physics
A space probe has two engines. Each generates the same amount of force when fired, and the directions of these forces can be independently adjusted. When the engines are fired simultaneously and each applies its force in the same direction, the probe,
asked by Randy 
7th grade math Ms. Sue please last questions!
15. Find the area of a triangle with a base of 9.3 ft. and the height is 3.5 ft. 32.55 ft² 24.81 ft² 16.275 ft² 11.0 ft² 16. Find the area of a parallelogram with a base of 15 in. and the height is 7 in. 105 in² 110 in² 52.5 in² 210 in² 17. Find
asked by Delilah 
math
write a trinomial of degree 4 such that the GCF of its terms is 1
asked by Taylor 
MATHS
Find the lengths of the missing sides in the triangle. Write your answers as integers or as decimals rounded to the nearest tenth. The diagram is not drawn to scale. triangle has sides 7, Y and X and 45 degree angle can someone show me how to do this? im
asked by Corie 
physic
two point charges are placed on the x axis as follows: charge q1 = +4.00 nc is located at x = 0.200 m, and charge q2 = +5.00 nc is at x = 0.300 m what ae the magnitude and direction of the net force exerted by these two charges on a negative point charges
asked by yanis 
Physics (Acceleration)
Determine the final velocity of a proton that has an initial velocity of 2.35 x 10^5 m/s, and then is accelerated uniformly in an electric field at the rate of 1.10 x x 10^12 m/s squared for 1.50 x 10^7 s.
asked by Rere 
Bio
In Drosophila, sepia colored eyes are due to a recessive allele s and wild type (red eye color) to its dominant allele s+. Sepiaeyed females are crossed to pure wild type males. What phenotypic and genotypic ratios are expected if the F1 males are then
asked by Amber 
geometry
The area of a circle 200mm in diameter is approximately how many times greater than the area of a circle 40mm in diameter?
asked by wayne 
physics
A student wishes to measure the resistivity of glass. A teacher suggests that its resistivity is of the order of 10^6 Ω m which is very large. Resistivity ρ is defined by the equation: ρ = RA / l where R is resistance, A is crosssectional area and l is
asked by harish 
chemistry
A crucible containing potassium chlorate has a mass is 24.426 g. The crucible is heated according to the lab procedure for this week's experiment and is found to weigh 23.202 g. Write an equation for the reaction and, assuming that all the chlorate
asked by memo 
Math
Tim said to find 6x33,i can add 18 + 18. Do you agree with him?why or why not?
asked by Lize 
english
After the bully struck him, Jules wanted to________ by throwing a rock, but he had______s about doing anything so dangerous.
asked by amanda 
Chemistry
At a particular temperature, 13.7 mol of SO3 is placed into a 3.9L rigid container, and the SO3 dissociates by the reaction given below. 2 SO3(g) 2 SO2(g) + O2(g) At equilibrium, 3.8 mol of SO2 is present. Calculate K for this reaction.
asked by Margaret 
Chemistry
The freezing point of ethanol is 114.6 C and its Kf value is 2.00 C/m. What is the freezing point for the solution prepared by dissolving 50.0 g of glycerin (C3H8O3) in 200.0 g ethanol? I used Change in temp=Kfm kf=2.00 I calculated m to be 2.1736. I
asked by Lauren 
math
why do some fact families have only two facts? give an example.
asked by Anonymous 
english 11
Goodman Brown is compelled to continue into the forest toward the devilish gathering when ___ (1 point)the older man gives him a staff. he hears the minister talking. he sees a ribbon from his wife Faith’s cap. he sees his neighbor.
asked by jeka 
Science
I need an acrostic poem of the word Biotic Factors
asked by Alex Russo 
Calculus
The concentration of a drug in a patient's bloodstream t hours after it is taken after it is taken is given by C(t) = 0.016t/(t+2)^2 mg/cm^3 Find the maximum concentration of the drug and the time at which it occurs.
asked by vivi 
English
The little girl was so___ after her illness that her parents carfully____(e)d fattening meals that were sure to arouse her appetite. Willie is a ________ on our school. Not only does he start fights with opposing players on the basketball court, but he
asked by amanda 
microeconomics
1. Market demand is given as QD = 250 – 0.5P. Market supply is given as QS = 2P. In a perfectly competitive equilibrium, what will be the value of consumer surplus? a.$10 000 b.$20 000 c.$40 000 d.$80 000 2. Market demand is given as QD = 250 – 0.5P.
asked by sarah 
English
I'm really confused by the story "Score/Score" by Phyllis Gotlieb. what's the mood? what's the author's tone?
asked by Krum 
math
The rise of digital music and the improvement to the DVD format are part of the reasons why the average selling price of standalone DVD recorders will drop in the coming years. The function below gives the projected average selling price (in dollars) of
asked by Please help!!! 
math
Peter has twice many stickers as Ali. Ali has 40 more stickers than Carlos. They have 300 stickers altogether. How many stickers does Peter have?
asked by May 
Chemistry
You are asked to prepare a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added sodium benzoate salt (C6H5COONa). a) Find the pH of the benzoic acid solution BEFORE adding the salt. b) Use the
asked by Lacy 
Calculus
The concentration of a drug in a patient's bloodstream t hours after it is taken after it is taken is given by C(t) = 0.016t/(t+2)^2 mg/cm^3 Find the maximum concentration of the drug and the time at which it occurs.
asked by vivi 
Science
A 1000MWe plant uses coal with 3% sulfur content. How many tons of SO2 will be emitted into the air during the operation of the plant for a day?
asked by Crobar 
Physics
"A jogger runs with a velocity of 6.0 km/h [25° N of W] for 35 min and then changes direction, jogging for 20 min at 4.5 km/h [65° E of N]. Using a vector diagram, determine the jogger's total displacement and his average velocity for the workout." I
asked by Pravda 
english
Willie is a ________ on our school. Not only does he start fights with opposing players on the basketball court, but he also _______s after he's benched. as if he's prode of causing such turmoils. In fact,although he's a great player, the coach is
asked by amanda 
Chemistry
You are asked to prepare a pH = 4.00 buffer starting from 1.50 L of 0.0200 M solution of benzoic acid (C6H5COOH) and some added sodium benzoate salt (C6H5COONa). a) Find the pH of the benzoic acid solution BEFORE adding the salt. b) Use the
asked by Lacy 
Science
At 25°C, Kp = 2.910−3 for the following reaction. NH4OCONH2(s) 2 NH3(g) + CO2(g) In an experiment carried out at 25°C, a certain amount of NH4OCONH2 is placed in an evacuated rigid container and allowed to come to equilibrium. Calculate the total
asked by Margaret 
physics
An apple falls from an apple tree growing on a 20° slope. The apple hits the ground with an impact velocity of 5.7 m/s straight downward. What is the component of the apple's impact velocity parallel to the surface of the slope?
asked by meme 
geometry
How many cubic meters of cement are required to cover a walkway 7 m long, 0.95 wide, and 10 cm deep?
asked by wayne 
microeconomics
1. Suppose that an increase in the price of carrots from $1.20 to $1.40 per pound raises the amount of carrots that carrot farmers produce from 1.2 million pounds to 1.6 million pounds. Using the midpoint method, what would be the elasticity of supply? a.
asked by sarah 
statistics
ten randomly selected people were asked how long they slept at night. The mean time was 7.1 hours and the (sample) standard deviation was 0.78 hours. Find the 95% confidence interval of the mean time. Assume the variable is normally distributed.
asked by Asia 
maths
the heights of female students at a particular college are normally distributed with the mean 169 cm and standard deviation 9 cm. 1) Given that 80% of these female students have a height less than h cm ,find the value of h. 2) Given that 60% of these
asked by harish 
physics
A person, with his ear to the ground, sees a huge stone strike the concrete pavement. A moment later two sounds are heard from the impact: one travels in the air and the other in the concrete, and they are 2.7s apart. speed of sound in air is 343 m/s and
asked by Anonymous 
math!!!!!!
How many lateral edges are there in a triangular prism
asked by alex 
english
Blatant,blight, contrive,garbled,immaculate,gaunt,retaliate .........The little girl was so———after her illness that her parents carefully——ed fattening meals that were sure to arouse her appetite.
asked by stacey 
Physics
In doing a load of clothes, a clothes dryer uses 16 A of current at 240 V for 45 min. A personal computer, in contrast, uses 2.7 A of current at 120 V. With the energy used by the clothes dryer, how long (in hours) could you use this computer to surf the
asked by Orla 
Physics
A woman fixing her hair holds a plane mirror 30 cm away from the front of her face so as to look into a plane mirror on the bathroom wall behind her. She is 90 cm from the wall mirror. Approximately how far does the image of the back of her head appear in
asked by Madison 
math
Ryan estimates that he uses 2/3 cup of syrup each time he eats pancakes. How many times will he be able to eat pancakes without running out of syrup if he has a giant bottle of syrup that contains 48 cups. Do you multiply 48x2/3 and get that he will be
asked by B 
physics
Ricardo and Jane are standing under a tree in the middle of a pasture. An argument ensues, and they walk away in different directions. Ricardo walks 24.0 in a direction 60.0 west of north. Jane walks 10.0 in a direction 30.0 south of west. They then stop
asked by meme 
World history; Check:P
Renaissance Assignment What was the attitude of Church leaders and the wealthy toward the arts? Why? The attitude of the church was encouraging and loved the art that was being done because they were willing to spend tons of money for art. They became
asked by Unknown 
Math
"One leg of a right triangle is 50.A line parallel to the other leg and at a distance of 20 from that leg cuts off a right trapezoid of area 320. What is the area of the original right triangle?"
asked by Justin 
statistics
Suppose that neighborhood soccer players are selling raffle tickets for $500 worth of groceries at a local store, and you bought a $1 ticket for yourself and one for your mother. The children eventually sold 1,000 tickets. (a) What is the probability that
asked by Anonymous 
math
the distance between town A and town B was 210km. At 9:20pm a bus sets off from town A to town B and a car left from town B to town A. The average speed of the bus was 60km/h and the average speed of the car was 80km/h. a)Calculate the time at which the
asked by Leslie 
Physics
A woman 2.00 m tall stands 3.5 m in front of a plane mirror. (a) What is the minimum height the mirror must be to allow the woman to view her complete image from head to foot? Assume that her eyes are 10 cm below the top of her head.(b) What would be the
asked by Madison 
Math
Calculate the length of the diagonal for the given rectangular prism. Length: 10 cm Width: 4 cm Height: 10 cm
asked by The Dark Knight 
Physics
Suppose that the gravitational acceleration on a certain planet is only 3.1 m/s2. A space explorer standing on this planet throws a ball straight upward with an initial velocity of 25 m/s. (a) What is the velocity of the ball 4 seconds after it is thrown?
asked by Jordan 
algebra
your club is in charge of making pins that students can buy to show their school spirit for the upcoming football game. you have 225 so far and you only have 2 hrs. left to make the rest of the pins. you need to make at least 400 pins.
asked by terri 
chemistry
You weigh out 1.70 g of sodium carbonate monohydrate, dissolve it in water and react it with 15.00 mL of 2.00 M HCl. Write an equation for the reaction and calculate the expected mass of carbon dioxide that will be produced.
asked by memo 
math
One leg of a right triangle is 3cm more than half the length of the other leg.the area of the triangle is 54cm^2. How long are each of the legs.
asked by shonye 
math
A shipment of tv sets, some weighing 30kg each and the others weighing 50kg each, has a total weight of 880kg. If there are 20 tv sets all together how many weigh 50 kg?
asked by NEED HELP 
Physics
An elevator (cabin mass 600 kg) is designed for a maximum load of 2800 kg, and to reach a velocity of 3.6 m/s in 5 s. For this scenario, what is the tension the elevator rope has to withstand?
asked by L'dya 
Math
In a World Series, two teams play each other in at least four and at most seven games. The first team to win four games is the winner of the World Series. Assuming that both teams are equally matched, what is the probability that a World Series will be one
asked by Urgent!! 
statistics
A horse race has 14 entries. Assuming that there are no ties, what is the probability that 5 horses owned by 1 person finish first, second, third, fourth, and fifth?
asked by Anonymous 
Math
A box contains a onedollar bill, a fivedollar bill, a tendollar bill, and a twentydollar bill. Two bills are chosen in succession without replacement. 1. What is the probability that the value of at least one of the bills is even? As a fraction
asked by Kyle 
chemistry
NH4HS(s) NH3(g) + H2S(g) An equilibrium mixture of this reaction at a certain temperature was found to have (NH3)=.268 and (H2S)=.360 What is the value of the equilibrium constant at this temperature?
asked by hannah 
Geometry
A rectanglar school yard is 280 meters by 245 meters is to be fenced. How many meters of fencing will be required to fence it completely?
asked by wayne 
english
(jacob and jacob was discussing) the rgument during the debate. is the underlined corrected as jacob and jacob discussed
asked by jj 
Chemistry
The solubility of nitrogen in water is 6.9 x 10^4 at exactly 1 atm pressure. What is the solubility of nitrogen under .80 atmp pressure? I don't know where to start with this problem, what formula do I use?
asked by Sara 
MATH
missy and missy are messy sisters. their dresser drawer consists of 43 white socks, 2 black socks, 23 blue socks and 8 red socks. What is the minimum number of socks they must remove from the drawer to be certain they have four socks of the same color?
asked by KUMAR 
math
write a trinomial of degree 4 such that the GCF of its terms is 1
asked by Taylor 
chemistry
in an attempt to establish the formula of an oxide of nitrogen , a known volume of the pure gas was mixed with hydrogen and passed over a catalyst at a suitable temperature. 100% conversion of the oxide to ammonia and water was shown to have taken place.
asked by harish 
Physics
An elevator (cabin mass 600 kg) is designed for a maximum load of 2800 kg, and to reach a velocity of 3.6 m/s in 5 s. For this scenario, what is the tension the elevator rope has to withstand?
asked by L'dya 
Finance
Given her evaluation of current economic conditions, Ima Nutt believes there is a 20 percent probability of recession, a 50 percent chance of continued steady growth, and a 30 percent probability of inflationary growth. For each possibility, Ima has
asked by Anonymous 
english
possessive pronouns of martha katz's?
asked by felix 
science
a particle is projected vertically upward with the velocity u m/s and after t(s) another particle is projected upwards from the same point and with the same initial velocity. proof that the particle will meet after a lapes of (u/g + t/2)seconds from the
asked by Fatima 
History
Anyone Know? Background Information: before Brown v. Board of Education Discussion on Brown v. Board case beginnings. Thesis on Brown v. Board of Education Main Argument on Brown v. Board of Education Short term and Long term Impact on Brown v. Board of
asked by Mary 
chemistry
2.0 x 10^5 grams of hydrogen gas at 155 degree calsius exert a pressure of 322.5 torr on the walls of a small cylindrical tube. What is the volume of the tube?
asked by Casandra 
Physics
A popular amusement park ride looks like a huge cylinder of radius 3 m, where people stand up along the vertical walls on top of a floor which can drop away. The cylinder begins to rotate faster and faster, and when it reaches its highest speed the floor
asked by Kelsi 
chemistry
Calculate the molecular weight of a gas if 4.5L of the gas at 785 torrs and 23.5 degrees celcius weigh 13.5g.
asked by Destinee 
Physics (Formula)
I just need the formula. A 2.5 kg object is whirled in a vertical circle whose radius is 0.89 m. If the time of one revolution is 0.94 s, the magnitude of the tension in the string (assuming uniform speed) when it is at the top is
asked by Eve 
CHEMISTRY
Help Please!!!! H2SO4(aq) = 2H+(aq) + SO42(aq) What is the hydrogen ion concentration, in mol dm−3, when 1.50 g of sulfuric acid is dissolved in water to give 0.500 dm3 of solution
asked by jim 
maths
the masses of lettuces sold at a market stall are normally distributed with the mean 600g and standard deviation 20g. 1) find the mass exceeded by 10% of the lettuces. 2) 5% of the lettuces have a mass less than M g. find M
asked by harish 
Physics (Formula)
A string requires a 191.0 N force in order to break. A 1.75 kg mass is tied to this string and whirled in a vertical circle with a radius of 1.92 m. The maximum speed that this mass can be whirled without breaking the string is Again I just need the
asked by Eve 
math
The owner of a luxury motor yacht that sails among the 4000 Greek islands charges $430 per person per day if exactly 20 people sign up for the cruise. However, if more than 20 people (up to the maximum capacity of 90) sign up for the cruise, then each fare
asked by joy 
chem
A highspeed chase captured on a surveillance camera showed the suspect running a red light at an intersection. The suspect vehicle collided with a vehicle that had just turned into the path of his car. The tape shows that it took the car 0.546 s to cross
asked by tammy 
Math/Accounts
Estimate the cost of ending inventory based on the retail method using the following information: Cost Retail Beginning Inventory $ 600,000 $ 800,000 Purchases $ 450,000 $ 600,000 Net Sales $1,000,000 A. $150,000 B. $262,500 C. $300,000 D. $750,000
asked by Anna 
science
a particle ia projected upward with a velocity of u m/s and after an interval of t(s) anoda particle is projected upward from the same point and wit the same initial velocity.proof dat they will meet at a height of (4u^2/8gg^2t^2/8g)
asked by Fatima 
math
from a square piece of cardboard with length and width of x inches, a square of width x1 inches is removed from the center. Write the area of the remaining piece of cardboard as a function of x
asked by Zach 
Physics
A 2.5 kg object is whirled in a vertical circle whose radius is 0.89 m. If the time of one revolution is 0.94 s, the magnitude of the tension in the string (assuming uniform speed) when it is at the top is I just need the formula and it doesn't even have
asked by Eve 
Physics
A person stands 2.0 m away from the reflecting surface of a plane mirror. What are the image characteristics?
asked by Madison 
statistics
1.A magazine reported that 6% of Americans read the news paper while driving. 100 drivers are selected at random, find the probability that exactly 25 of them say they read the newspaper while driving.(normal binomial formula to solve) 2. A survey of 30
asked by Asia 
Math ms sue please help again
Jim has designed a rectangle with an area of 100 square feet and a perimeter of 401 feet. What are the dimensions of Jim's rectangle?please show me how u got the answer.
asked by Gabby 
math30
The Mean and the Standard Deviation Last year, golfers at Smith Ranch golf course had a mean score of 41 and a standard deviation of 2 on the first nine holes of the course, and a mean of 38 and a standard deviation of 1.8 on the last nine holes. One
asked by alejandro 
World history; Check:P
Spain's Empire Assignment Why did absolute monarchs believe that they were justified in exercising absolute power? Absolute monarchs believed in divine right, the idea that God created the monarchy and that the monarch acted as God’s representative on
asked by Unknown 
Algebra
In a pet store there are 4 more cats than dogs and the ratio of cats to dogs is 12 to 9.What is the total number of cats and dogs in the pet store?
asked by Saraphina 
haematology
discuss how the body manages to maintain the cellular components whithin the reference range in an a healthy individual
asked by jose 
Physics
A string requires a 191.0 N force in order to break. A 1.75 kg mass is tied to this string and whirled in a vertical circle with a radius of 1.92 m. The maximum speed that this mass can be whirled without breaking the string is Again I just need the
asked by Eve 
physics!
The waterfall "Angel Falls" in Venezuela is the world's tallest at h=979 m. Assume that the water's velocity on the top of the falls and on the bottom of the falls (after it hits the ground and begins to flow away) is equal, and that no total energy is
asked by please help me out!!!! 
math
A tank was 3/5 filled with water. After removing 120 litres of water from the tank it was 1/5 filled. a)Find the amount of water the tank can hold when completely filed. b)If one litre of water has a mass of 1 kg, find the mass of water in the tank when
asked by sherika 
Physics
A rocket blasts off from rest and attains a speed of 30.4 m/s in 10.3 s. An astronaut has a mass of 60.1 kg. What is the astronaut's apparent weight during takeoff?
asked by Randy 
math
One leg of a right triangle is 3cm more than half the length of the other leg.the area of the triangle is 54cm^2. How long are each of the legs.
asked by shonye 
english
The confused student shook his head to clear it
asked by jones 
Math
How do I find the x and y intercepts of (x^(2))y + x^(2) + 4y = 0 Would they both be (0,0) ??
asked by Anonymous 
math(Trigonometry)
sin 2 theta + cos theta = 0 so, we use sin 2 theta = 2 sin theta cos theta right? but the problem is i'm stuck on (2 sin theta cos theta) + cos theta = 0. What should i do?
asked by Amirul 
Physics
A small dog sits 1.5 m in front of a plane mirror. Where is the dog's image in relation to the mirror?
asked by Madison 
Calculus
Water is draining at a rate of 2 cubic feet per minute from the bottom of a conically shaped storage tank of overall height 6 feet and radius 2 feet . How fast is the height of water in the tank changing when 8 cubic feet of water remain the the tank?
asked by Vivi 
maths
A group of friends are planning a road trip. If they all contributed $24, then they would be $6 short of the total. If they all contributed $25, then they would have $3 more than needed. What is the total cost of the trip?
asked by Rox 
physical
Two skaters, a man and a woman, are standing on ice. Neglect any friction between the skate blades and the ice. The mass of the man is 84 kg, and the mass of the woman is 68 kg. The woman pushes on the man with a force of 50 N due east. Determine the
asked by Tara 
Art Work Defining
I making a booklet of elements and principles of design and it have to illustrate all the elements and principles, and i have to include the name of element or design, and image that illustrate it, and brief explanation how that element or principle be
asked by Mohammad 
Physics
An electric motor develops 70 kw of power as it lifts a loaded elevator 28.5 m in 42 seconds. How much force does the motor exert?
asked by Ambyr 
chemistry
in reaction = Mg + O2 > MgO if 24 gram of Mg is burned in excess oxygen to form 40 gram of MgO, How much O2 is used?
asked by Fakhrywik 
math
An interior decorator must mix red and white paint in the ratio of 2:5 in order to obtain the correct colour pink. If she needs 28 litres of pink paint, calculate how much red paint and how much white paint shem must use to obtain the right colour.
asked by Karabo 
Math
A class consists of 16 boys,12girls, and 2 teachers. How many different committees of size eight can be formed if the committee must consist of 4 boys 3 girls and one teacher?
asked by Abby 
Physics
A ball is thrown upwards at 15m/s from a window 20 metres above the ground. Find: a)How long the ball the takes to reach the level of the window b)How much longer it takes to reach the ground? c)What speed it takes to reach the ground?
asked by Aquile 
Biology
Are there any differences between the thyroid gland, thymus gland, and spleen in a male and female pig?
asked by Mikee 
Math ms sue please help
I have this paper and it talks about chad and Claire and the rectangular base and when it said the least expensive thing I got 8 by 6 with the cost $23.80 it's right but I forgot how I got my answer a little help please?
asked by Gabby 
C code
//INSTRUCTIONS //Your parser will read from input.txt //input.txt consists of a series inputs that you need to read. //each input is proceeded by a flag. //Each flag will be either I,C, or F. //I means int C means char F means float. //So for example //I
asked by Nick 
Physics
At an instant when a soccer ball is in contact with the foot of the player kicking it, the horizontal or x component of the ball's acceleration is 940 m/s2 and the vertical or y component of its acceleration is 710 m/s2. The ball's mass is 0.35 kg. What is
asked by Randy 
math
the sum of two numbers is 90. their difference is 18. Find the numbers.
asked by ki 
maths
The lifetime in hours of a certain make of batteries follows a normal distribution with mean 160 and standard deviation 30. Calculate the interval, symmetrical about the mean within which 75% of the battery lifetimes lie.
asked by harish 
Chemistry
The freezing point of ethanol is 114.6 deg Celsius and its Kf value is 2.00degC/m. What is the freezing point for a solution prepared by dissolving 50.0g of glycerin in 200g ethanol? I thought it may have been using the formula deltaT=Kf*m, but I'm not
asked by Jonah 
Math 11
Is it possible to construct a rectangle whose length is 1cm less than twice its width, and whose area is 40cm^2? If your answer is yes, determine the dimensions of the rectangle to the nearest tenth of a centimetre. If your answer is no, explain why it is
asked by Kat 
English
4. What conclusion can you draw from Anne and Peter’s interaction at the beginning of Scene 3?
asked by The Dark Knight 
Stats / Prob
Suppose a box of marbles contains equal numbers of red marbles and yellow marbles but twice as many green marbles as red marbles. Draw one marble from the box and observe its color. Assign probabilities to the elements in the sample space. (Give your
asked by Anonymous 
Biology
What is the significance of the different length: volume ratios of the digestive organs?
asked by Kelz 
math
A drum is 2/3 filled with oil.15 litres of oil is removed from the drum. The drum is now 3/5 full, find the capacity of the drum in litres.
asked by sherika 
Physics
The sun is more massive than the moon, but the sun is farther from the earth. Which one exerts a greater gravitational force on a person standing on the earth? Give your answer by determining the ratio Fsun/Fmoon of the magnitudes of the gravitational
asked by Randy 
mathprobability
A state lottery has a daily drawing to form a fourdigit number. The digits 1 through 9 are randomly selected for each of the four digits. For each selection any one of the digits 1 through 9 are possible. What is the probability to the nearest hundredth
asked by Tina 
Physics
A cannon is mounted on a truck that moves forward at a speed of 5 m/s. The operator wants to launch a ball from a cannon so the ball goes as far as possible before hitting the level surface. The muzzle velocity of the cannon is 50 m/s. What angle from the
asked by Brian 
physics
A ship leaves the island of Guam and sails a distance 280 at an angle 39.0 north of west. 1.In which direction must it now head so that its resultant displacement will be 125 directly east of Guam? (Express your answer as an angle measured south of east)
asked by meme 
maths
An intelligence test used in a particular country has scores which are normally distributed with mean 100 and standard deviation 15.In a randomly selected group of 500 people sitting the test, estimate how many have a score 1)higher than 140, 2)below 120,
asked by harish 
Algebra 2
Im doing Sythetic Division. (x^3 + 3x^2  28x  62) / (x + 6)
asked by Sam C. 
chemistry
Balance using oxidation Number Methode A. MnO4 + C2H4 + H20 > MnO2 + OH + C2H6 B. ClO > Cl + ClO3
asked by Fakhrywik 
Math Probability
What is the probability of rolling two number cubes and getting a total of greater than 11?
asked by Kyrsten 
Chemistry
How many milliliters of water has been dispensed if the initial buret reading was 0.38 ml and the final is 24.70 ml
asked by Anonymous 
Aplied maths
1. A steel plate initially at 21.2°C is placed in a furnace at 785°C for 58.0 minutes. While in the furnace the temperature of the plate increases at a rate of 4.18% per minute. After 58.0 minutes, the plate is removed from the furnace and placed on a
asked by DAVID 
Calculus
Consider a box with a square base of side length s and height h. If the sum of the length, width, and height of the the box is 120 inches, what is the maximum possible volume? Justify your answer.
asked by Vivi 
algebra
Simplify. 2x^32x ________ 7x^314x^2+7x
asked by LaShawn 
chemistry
in reaction S + O2 > SO2, determine percent yield if 4 grams of S produced 64 gram of SO2
asked by Fakhry 
Chemistry
How many moles of Al(OH) are required to completely react with 2.75mol of H2SO4?
asked by Annette 
English
Hello again. Will you please help me with a few more questions? 1)Which word order is correct: a)he was accused of taking bribes by his colleagues or b) he was accused by his colleagues of taking bribes? 2)Do you think it's possible to say: "there are good
asked by Ilma 
Chemistry
I did a lab today in class and part of the lab is to experimentally find the enthalpy for the dissolution of ammonium chloride by dissolving 4.0 g of NH4Cl(s) in 50.0 mL of H2O(l). I got a 5°C temperature change and calculated delta H to be 15 kJ/mol.
asked by a Canadian 
MS Sue
can you plz check my english answers
asked by jj 
physics!!!!!!!!!!
If you ever watch track and field at the Olympics, you'll notice that the starting points of the runners are not even if the race is run on a curve and the runners have to run in lanes. This is to offset the fact that the distances along each lane are
asked by please help me out!!!! 
math
jessica and her 7 friends share 3 liters of apple juice equally. How much juice does each person get
asked by Mas 
history
i do not have a history book, and i have a worksheet that requires one, my school does not handout textbook, they only have textbooks in the class, so please help thank you if you do why was the us able to expand its war production so quickly after the
asked by Bella 
chemistry
To what temperature, in degree celsius, must 10.0 grams of ammonia gas (NH3) have to be heated in a 15.0 L container in order for it to exert a pressure of 3.50 atm?
asked by Abbie 
language arts
what are some positive and negative impacts humans have on the environment? please write down the what humans do and how it impacts the environment! thank u
asked by anonymous 
math
Cara is five feet tall and casts a shadow of eight feet long. At the same time, a building casts a shadow 32 feet long. What is the height of the building?
asked by Anonymous 
math
Find all pairs of numbers such that when they are added they equal 100, and when they are multiplied they are at least 2000.
asked by Omar 
trig
Given the function y = 3cos(3x + pi), identify: Amplitude (if applicable, give the answer in fractional form) Period (in radians as a multiple of pi  note: do not write "rad" or "radians" in your answer) Phase Shift (if the shift is right, enter + and if
asked by kikine 
chemistry
Sulfuric acid is a strong acid and dissociates in water as shown in Reaction 4. Equation label: (4) Help Please!!!! H2SO4(aq) = 2H+(aq) + SO42(aq) What is the hydrogen ion concentration, in mol dm−3, when 1.50 g of sulfuric acid is dissolved in water to
asked by jim 
Algebra
In a pet store there are 4 more cats than dogs and the ratio of cats to dogs is 12 to 9.What is the total number of cats and dogs in the pet store ?
asked by Anonymous 
physics
a particle is travelling in a straight line with constant acceleration.it covers 6m in the fourth second and 7m in the fifth second.find its acceleration and initial speed.
asked by Fatima 
Chemistry
What is the osmotic pressure of .100 M solution of aluminum chloride at 27 deg C? I used the formula: pi=(i)(M)(R)(T) wasn't sure what i was but for M put down 0.100M, R=0.08206 and T=300K Answer is 9.85, but not sure how to get that.
asked by Jonah 
Physics
Can anyone help with the following? I think i have the answer i would just like to verify that it is correct, An equipotential surface that surrounds a point charge q has a potential of 490 V and an area of 1.1 m2. Determine q
asked by Orla 
Physics
A block of mass 17.9 kg supported by a vertical massless cable is initially at rest. The block is then pulled upward with a constant acceleration of 2.01 m/s2. What is the tension in the cable? What is the magnitude of the net force acting on the mass?
asked by Jessica 
Physics
A 8.38g bullet is fired into a 4.60kg block suspended as in the figure. The bullet stops in the block, which rises 15.0cm above its initial position. Find initial speed of the bullet.
asked by Jose 
physics
A tiger can run at approximately 100 km/hr (27.7 m/s) and a zebra at 80 km/hr (22.2 m/s). If both animals are running at full speed, with the zebra 70.0 m ahead, how long before the tiger catches its prey? a) 12.6 s b) 25.2 s c) 6.30 s d) 10.7 s
asked by Randy 
maths
x ~ N(400,64) 1) Find the limits within which the central 95% of the distribution lies. 2) find the interquartile range of the distribution.
asked by harish 
chemistry
in reaction S + O2 > SO2, determine percent yield if 4 grams of S produced 64 gram of SO2
asked by Fakhrywik 
chemistry
Balance using oxidation Number Methode A. MnO4 + C2H4 + H20 > MnO2 + OH + C2H6 B. ClO > Cl +
asked by Fakhrywik 
chemistry
NH4HS(s) NH3(g) + H2S(g) An equilibrium mixture of this reaction at a certain temperature was found to have (NH3)=.268 and (H2S)=.360 What is the value of the equilibrium constant at this temperature?
asked by hannah 
Physics
A 9.3 kg mass is attached to a hanging vertical spring with k=49 N/m. If the mass is released when the spring is unstretched, how fast will it be moving as it falls past the equilibrium point?
asked by Jane  help! 
Math
Suppose a population is sampled and the sample mean is 16.8. The sample standard deviation is 6.0 I am to assume the sample is larger than 30) and the sample size is 65. How do I calculate 95% and 98% confidence intervals. State which interval wider and
asked by Mandi 
Algebra
How do I solve this equation? Please explain and do step by step. 6m squared 5m14=0
asked by Ann 
Math
A taxi company charged $4.40 for a 2 mile trip. It charges certain amount for each 1/5 mile traveled. It charges twice as much for the first 1/5 mile. How muchis charged for the first 1/5 mile and each 1/5 mile after the first one?
asked by James 
MATH
A sugar jar is filled full with sugar weighs 30 lbs. It wieghs 9 lbs when the jar is one fourth filled with sugar. What is the of the empty sugar jar.
asked by AYAA 
Math
Scott can travel from Rochester, N.Y., to New York City by bus, train, car, or airplane. He can travel from New York to London, England, by airplane or ship. 1. If Scott must return from London to New York by airplane, and from New York to Rochester by
asked by cory 
expository essay
please give me tips and sentences i can use in an essay about:why hard work need to succes ?
asked by laury 
math
Consider the supply equation where x is the quantity supplied in units of a thousand and p is the unit price in dollars. p=x^3+x+10 Determine the price at which the supplier will make 2,500 units of the commodity available in the market. (Give your answer
asked by kasie 
Physics
Calculate the average speed of the car in km/h, it can accelerate from 96.56 km/hr in 4.3 seconds. Distance is not provided
asked by Sev 
Speech
Listening to your friend sincerely as they tell you about their day ( empathic listening)? Not anderstanding because of accent ( cultural barrier)? Take notes in class and studying then so you can paraphrase the information for a test. (Academic listening)
asked by Darcy 
English  APA
I'm writing a book review in APA and I need to cite a quote. Would it be similar to an essay where I would do the following: (Author's last name, date of publication, page number) (Brown, 1999, p. 75) Do I need to include chapters, as well? The novel I'm
asked by Lena 
science
a particle moving in a straight line with constant acceleration passing over distances x,y,z in equal consecutive interval of time(t).find the relation between x,y and z..and the acceleration of the body.
asked by Fatima 
Biology
list the 3 domains and the kingdoms included in each. please help me!!!! :) thanks
asked by ME! PLZ HELP 
physics
a body moves in a straight line with initial velocity and uniform acceleration.find how far it travels in12s,given that it travel 246m in the 1st 6seconds,and 69m in the last 3seconds.find also the initial velocity.
asked by Fatima 
maths
1,The sum of $3000 is placed in the savings account. If money worth 6% compounded semi annually, what is he balance in the account after 7 year? Assume no other deposit and no withdrawals are made.2,The demand function of a manufacturers production is
asked by ifeanyi chinedu chris 
Chemistry
How many grams of HCl need to be dissolved in 0.5L of water to prepare a solution of pH 1.5? Does anybody know how to work this out? Thanks :)
asked by Matt 
english
ellen brought her (uncle) a picture of the mountains is the parenthesis the subject the direct object indirect object or predicartive nominative
asked by jj 
math
a car travels at an average speed of 100 km/hr. how many km will the car travel in 2 hours, 15 min?
asked by Lori 
Physics
7. A formula 1 racecar is capable of very quick starts (with a launch control system, that prevents the wheels from spinning during rapid acceleration)). A 2011 Ferrari (driven by none other than Agent 001) is initially at rest, and undergoes a constant
asked by Navmeet 
Math
John walks 20km due east then turns 270 degrees anticlockwise and walks another 20km. What would be his bearing from the starting point?
asked by Leticia 
Chemistry
I am doing a lab on enthaply of vaporization of water, I got everything else on the post lab but these two questions, please help. The deltaHvap data from the handbook reference vary with temp. 1) if your data were perfect, but deltaHvap is not constant,
asked by Kim 
Algebra
Express the radical as a power. Then evaluate it. Round to the hundredths place. I can't figure out how to type the symbols on my computer, but there are 3 problems. 1) 795 "squarerooted to the 3rd power" 2) 9876 "squarerooted to the 5th power" 3) 845.3
asked by Sylvie 
math
the volume of a small balloon is 2 liters and a larger balloon is 5 liters. the small balloon is increased at a rate of 0.3 per sec. larger balloon is decreased at a rate of 0.12 liters per sec. after how many seconds will the two balloon have the same
asked by kitty 
Chemistry
Given the following equilibrium constants are given at 377°C, 1/2 N2(g) + 1/2 O2(g) NO(g) K1 = 110−17 1/2 N2(g) + O2(g) NO2(g) K2 = 110−11 N2(g) + 3/2 O2(g) N2O3(g) K3 = 210−33 N2(g) + 2 O2(g) N2O4(g) K4 = 410−17 determine the values for the
asked by Margaret 
Business Analysis
A firm has the following inventory information for the first quarter: 01/01 Beginning Inventory 50 units @ $5 01/15 Purchases 80 units @ $5.50 02/15 Purchases 60 units @ $5.25 02/15 Purchases 40 units @ $5.75 Sales 170 units @ $10 Total operating expenses
asked by Anna 
economics
Median income in a country rises by $5000 per year. The price of good X falls by $4. Quantity demanded for good x falls by 15,000 units per year. What can we say with good X?
asked by sade 
physics
Vector = 1.00 + 2.00 and vector = 3.00 + 4.00 . What are the magnitude and direction of vector = 3.00 + 2.00?
asked by meme 
college chemistry 101
why does an opened bottle of carbonated water keep its frizz longer if kept in a refrigerator than if left at room temperature?
asked by Shae 
english
(when you get to the corner,) turn right is the parenthesis idependent clause or dependent clause or ajd clause or adverb clause
asked by jj 
englsih
we saw nelson (skating in the park) the parenthesis is it idependent clause gerund phrase or adverb clause or noun clause
asked by jj 
math
I need help please >(Advanced) Give the domain and range of the relation. x y 2 5 8 17 0 0 –3 –5 Answer a. D: {2, 8, –3, 5, 17, –5}; R: {0} b. D: {–3, 0, 2, 8}; R: {–5, 0, 5, 17} c. D: {–3, 2, 8}; R: {–5, 5, 17} d. D: {–5, 0, 5, 17}; R:
asked by Emma 
Math
A quarter is flipped and the outcome is noted. If a head results, then a die is rolled. If a tail results, then the quarter is flipped a second time. 1.What is the probability of obtaining no heads?
asked by cory 
math
The area of a frame is equal to 120in^2.it surrounds a 4in x 6in photo.the frame is of uniform width.how wide is the frame ?
asked by shonye 
Math 1033
Job 1: Donivan Tech offered this girl a job at $50,310 a year at 45 hrs a week, traveling 45 miles a day. She estimates 15% of her gross pay. what is her weekly pay before deductions or expenses?
asked by Eddie 
Physics (vectors)
Please help me with this question about vectors. Thanks. If you are given a graph with a vector starting at the point (1,1)and the arrow goes to the point (0,4). What is the vector in rectangular coordinate? I answered (0,3), but the coordinate for x is
asked by Kathy 
precal
solve for all values in [0,2pie) 2cos^2x5sinx+1=0
asked by Argelia 
science
Can chemical properties be used to separate substances?
asked by Anonymous 
Calculus
Car A traveling southward towards Point P at 45 mi/hr. Car B is traveling east away from P at 30mi/hr. AT the instant when the distance AP is 60 mi and PB is 80 mi, what is the rate of change of distance AB?
asked by Vivi 
Physics
Traveling at a speed of 15.5 m/s, the driver of an automobile suddenly locks the wheels by slamming on the brakes. The coefficient of kinetic friction between the tires and the road is 0.640. What is the speed of the automobile after 1.45 s have elapsed?
asked by Randy 
Literature
How does belinda retaliate after her lock is cut?
asked by Jonny Rodriguez 
physics
In a specific region of interstellar space the atomic composition of gaseous matter is 89.1% atomic hydrogen and 10.9% helium, the temperature is 27K and the pressure is 2.58x10^15Pa. What is the density of matter in this region? What is the particle
asked by alicia 
chemistry
anyone help me . .what volume of concentrated HCL solution whoch is 36% by mass and has a density of 1.179 g/ml , should be used to make 4.7 L of hcl solution with a pH of 1.8 ?
asked by m 
College
A bod of 10kg is traveling in straight line at 10m/s (a)what is de momentum?(b)what is de average force required to increase its velocity 4rom zero to 20m/s in 4seconds?
asked by John 
bio
What effect does glucose 6 phosphate have on cellular respiration? I am doing a bio lab using a respirameter (sp?) and am trying to come up with a question to test. I am testing the respiration of germinating seeds and was thinking something along the
asked by Hannah 
chemistry
determine ox number of each atom below A. CF4 B. KO2 C. SnO D. H2SO4 E. Fe2S3 F. AuCl3
asked by Fakhrywik 
macroeconomics
1.In an attempt to curb the problem of unemployment and win the forthcoming elections the government of the republic of zambia has decided to hire unemployed workers who had previously been receiving unemployment benefits as government employees and will
asked by jean 
physics
a body moves in a straight line with initial velocity and uniform acceleration.find how far it travels in12s,given that it travel 246m in the 1st 6seconds,and 69m in the last 3seconds.find also the initial velocity.
asked by Fatima 
math
what is the answer to this problem : there are 1.5 times more carp in the lake this year than last year. this year's carp population is 423. write an equation to determine how many trout are in the lake this year.
asked by Karly 
Chemistry
How many grams of HCl need to be dissolved in 0.5L of water to prepare a solution of pH 1.5? Does anybody know how to work this out? Thanks :)
asked by Matt 
ELA
what is plot structure and how do you do plot structure???
asked by Dingbat 
science
when a substance is heated energy is released/ absored. in chemisty this is called an
asked by jomecia 
MATH1
What two figures do I draw such that the first one has a greater perimeter but smaller area than the second.
asked by Miah 
Ms. Sue
Ms. Sue Pls look at my post
asked by The Dark Knight 
math
how to make a parallellagram with a base of 8cm and perimeter is 28cm?
asked by suzanne 
ECO365
Please explain or recommend a site where I can get a better understanding. What would happen to average and marginal productivity if a technological innovation is introduced to the production process? Provide an example
asked by CHASEONE 
math
Solve by reverse FOIL: 14x^2+48x+18=0
asked by shonye 
science
what is food vacuole and contractile vacuole 4th grade
asked by tiara 
english
Which sentence shows correct punctuation of an introductory structure? When I ran across the tile I lost my balance and slipped. If I had stayed late on Friday, I could have caught up on my work. Well I delivered the memo to Mr. Jenkins last week. Miriam
asked by someone 
english
right now people who cant breathe (or read warnings)are bumming cigarettes. what message or important comment does the right now comment appear to be making?
asked by kelly 
Applied maths
When a capacitor , charged to a voltage , is discharged through a resistor , the current will decay exponentially according to the following equation: i=E/R e^(t/RC) If E=250 V,C=160 μF and R=2100 Ω, answer the following questions: a) What is the
asked by DAVID 
math
Calculate the sum of 1/4 and 1/3.
asked by Anonymous 
math
write a trinomial of degree 4 such that GCFof its terms is 1
asked by Taylor 
Calculus
Find the area of the region bound by f(y) = 9y  y^2 and the yaxis over the interval 3
asked by Lost One 
Math
A dining room floor has an area of 52 yards. Alice wants to cover 3/4 of the floor with carpet. How many 4 square yards of carpet does she need?
asked by Jordan 
Science
Tranverse and longitudinal waves are mechanical waves what is meamt by these expression
asked by Oscar 
Chemistry
Chromatography relies on the differences in polarity between the compound, the mobile phase and the stationary phase. In your own words explain how polar and nonpolar compounds can be separated using cellulose paper and petroleum ether. I have no idea
asked by George 
Calculus
Find the intergral of (1+x)/sqrt(3x^2)
asked by M 
Math
Find the intergral of (1+x)/sqrt(3x^2)
asked by M 
health
Nearly ________ of the heat produced in the body is the result of muscle contraction. A. 55 percent B. 65 percent C. 75 percent D. 85 percent i think its D
asked by noah 
chemistry
balance these redox reactants & determine oxidator agent and reducing agent A. Zn + NO3 > Zn+2 +NH4 + Acid B. Cr(OH)3 + H2O2 > CrO4 2 + H20 (Basic)
asked by Fakhrywik 
physics
a body moves in a straight line with initial velocity and uniform acceleration.find how far it travels in12s,given that it travel 246m in the 1st 6seconds,and 69m in the last 3seconds.find also the initial velocity.
asked by Fatima 
englsih
1.Where are (the aronsons) going for vacation is the underlined a subject direct indirect object or predicate nominative
asked by jj 
english
Jacob and Ben gave hismovie tickets to the volunteers. what is the best way to write his its them their correct as is
asked by jjim 
math
26/4819/100
asked by Jasmine 
Statistics
how to round 0.2055 to 3 decimals
asked by Kim 
maths very urgent pls
?no1.The demand function of a manufactures production is P=10002q where P is the price (per unit) when Q units are demanded (per week) by consumers. Find the marginal revenue when 250 units are produced.?no2 The sum of $3000 is placed in the savings
asked by ifeanyi chinedu chris 
math
What scale would you use for a room that is 12 feet by 15 feet on a 7 inch by 8 inch paper?
asked by Matt 
Physics
In his car, a driver tosses an egg vertically from chest height so that the peak of its path is just below the ceiling of the passenger compartment, which is 56 cm above his release point. He catches the egg at the same height at which he released it. (a)
asked by Anonymous 
english
does (any of the students want) to sign up for knitting class this fall is the right way do any of the students want
asked by jj 
Chemistry
Burning an empty Styrofoam container results in volumes of black sooty flames. On the basis of this observation alone, to what class of hydrocarbons would you suspect a component of the polystyrene polymer found in Styrofoam belongs? Explain.
asked by Morgan 
English
Hello. Thanks for the previous answers. Please have a look at the context, and say if it's OK (I'm afraid it's again stilted (the way you say): "He is a wellknown scientist with a very good reputation; there are good responses to him in the academic world
asked by Ilma 
Applied maths
2. When light passes through a transparent medium, its intensity I at a depth d can be modelled using the equation where I0 is the initial intensity, and k is a constant. If the intensity of sunlight is reduced to 54% of its original value after
asked by DAVID 
math
Grater than 41 less than 52
asked by javie 
English
Hello. Will you please help me with the word "judge"? Do you think it's possible to say:"The EU has judged this decision (or law)" (meaning: 'condemned, criticized')? Thank you for your help.
asked by Ilma 
Chem
I am doing a lab on enthaply of vaporization of water, I got everything else on the post lab but these two questions, please help. The deltaHvap data from the handbook reference vary with temp. 1) if your data were perfect, but deltaHvap is not constant,
asked by Please please helppppp!!!!! 
math
the area of a rectangular field is 5301yd2 if the width of the field is 57 yards, what is the length
asked by janae 
college algebra
Solve absolute value inequality, use interval notations. 4+2x3> I know the answer is x>2 or x
asked by Anonymous 
precalculus
how do uu find the x int. , y int. , domain range asymtote of this equation y=log to the base 10 (2x+3/x5) pleaseee need to understand before the test tmr!!!! No one has answered this question yet.
asked by kikii 
fonts (numbers)
What is a cool way to write the number 1848. It's for a school project!
asked by ki 
statistics
From a shipment of 350 batteries, a sample of 125 was selected at random and tested. If 25 batteries in the sample were found to be dead, how many dead batteries would be expected in the entire shipment?
asked by Anonymous 
History
Is the Emancipation Proclamation an example of fact, opinion, propaganda, or bias?
asked by Jay 
maths
How many positive integers N are there such that the least common multiple of N and 1000 is 1000?
asked by Rox 
English
Hello. Please help me with the use of the word "judge". The dictionary defines one of its meaning as "to criticize", but somehow I feel it does not suit the following contex or am I wrong? "The Russian parliament yesterday adopted an antigay law. The EU
asked by Ilma 
chemistry
a sample of iron are is known as Fe3O4. A 50 gram of sample contain 26 gram of Fe. Determine % yield Fe3O4 In sample
asked by Fakhrywik 
english
Which sentence contains a present participle
asked by jones 
Math
Scott can travel from Rochester, N.Y., to New York City by bus, train, car, or airplane. He can travel from New York to London, England, by airplane or ship. 1. How many choices for the trip from Rochester to London are there?
asked by Kyle 
ECO365
Please explain or recommend a site where I can get a better understanding. What would happen to average and marginal productivity if a technological innovation is introduced to the production process? Provide an example
asked by CHASEONE 
maths
Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as a√b−cπ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value of
asked by Rox 
Math!!!!!!!!!!!!!!!!!
OMG please help me .. (Advanced) Give the domain and range of the relation. x y 2 5 8 17 0 0 –3 –5 Answer a. D: {2, 8, –3, 5, 17, –5}; R: {0} b. D: {–3, 0, 2, 8}; R: {–5, 0, 5, 17} c. D: {–3, 2, 8}; R: {–5, 5, 17} d. D: {–5, 0, 5, 17};
asked by Emma 
physics!!!!!!!!!!!!!!!!!
A few years ago, a movie came out about a soldier, John Carter, who was transported to Mars and could perform amazing feats of strength and jumping due to the lower Martian gravity. The surface gravity of Mars is 0.38 times that of earth. If John could
asked by please help me out!!!! 
math
What is the minimum value of N that will make this statement true: If we pick any N composite numbers from 1 to 1000, then we can find 2 numbers whose greatest common divisor is not 1. Details and assumptions You may use the fact that there are 168 primes
asked by harsh 
MATH
Three circles, each with a radius of 10, are mutually tangent to each other. The area enclosed by the three circles can be written as abã−cƒÎ, where a, b and c are positive integers, and b is not divisible by a square of a prime. What is the value
asked by KUMAR 
Algebra
Multiply {x^2+x6} * {x^3y} _______ _________ {xy^2 } {x^2+6x+9}
asked by LaShawn 
solar system
which planet has enough gravity to hold on to most gases?
asked by Angie 
calculus
Lim as x approaches 2 of (x^2kx+4)/(x^38)
asked by re 
math
If i have a piece of pipe that is half a yard long and it's divided into 5 pieces what is the length of each piece in yards?
asked by joshua 
math
how do you work the problem:how many batches of juice for 240 people at 1/2 cup when there is 2cups of concentrate and 3 cups of water.
asked by Anonymous 
math
how much needs to be saved weekly in order to have $30,000 in 5 years in an account that pays 6% compunded weekly? I need the formula.
asked by jim 
Statistics
If student A scored 42 on a test of reading and the test had a mean of 52 and a standard deviation of 8, what percentage of test respondents scored below student A?
asked by Brittany 
pre algerbra
Please solve the system with the elimination method. Explain each step as it is performed. 5y = x 2x  3y = 7
asked by Laura 
World history
Summarize what Charlemagne did to make his Empire larger and better administered. Identify at least two important things Charlemagne accomplished and explain your reasoning. Why, did the Empire decline and fragment? Was this inevitable?
asked by Evs 
chemistry
What volume of a 6.0 M NaOH solution would you need to prepare 250.0 milliliters of a 3.0 M NaOH solution?
asked by diana 
Int. ECO
1. Suppose just trade determines the strength of a currency. A country imports Good I and exports Good X. Because of international conditions, the price of Good I has risen 25%, while the country’s domestic production of Good I has stayed the same. The
asked by Powers 
Physics
A 4.51kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.382. Determine the kinetic frictional force that acts on the box when the elevator is (a) stationary, (b)
asked by Randy 
pre calc
how do uu find the x int. , y int. , domain range asytote of this equation y=log to the base 10 (2x+3/x5) pleaseee need to understand before the test tmr!!!! No one has answered this question yet.
asked by kikii 
Excel
What are the symbols I would use in Excel for each of the following Comparison Operators? "At Least" > "More Than" > "X Or Higher" > "X Or Less" > "Not More Than" > "At Most" >
asked by Jacob 
AP Caculus AB
the acceleration along the xaxis when time is t>0 a(t)=6t2 when t=0 the velocity=56. what is the total distance from t=3 to t=10? a)231 b)387 c)6004/27 d)14930/27
asked by Shea 
math
Solve for the variable:3(2y+7)^ 2=27
asked by shonye 
programming
Declare a string variable name myName
asked by newton 
Math
What is the simplest form of 1 and 2/6 (1 2/6) My answer is 1/3.. Is it correct?
asked by Mike 
chemistry
why we cant use hcl to react with Fe to create fecl3?
asked by hermaline 
Math Ms. Sue Please help!
Can you find me a website how to do inequalities on line graphs on the less than and greater than inequalities. Ex: 2r2
asked by Angelina 
english
Then, the doctor pumps the rubber ball does the comma go after ball or pumps or after then with a semi colin after ball
asked by jj 
math
one number is 5 greater than the other. their sum is 25. find both numbers
asked by Anonymous 
math
using ploynomial division rewrite the equation as a transformation
asked by cee 
math
20(23) divided by 3[4(2)]4(3)
asked by Anonymous 
chemistry
what determines the color of light when an electron moves from one level to another
asked by Sean 
science
a 15g sample of a material has a volume of 1.3cc. what is its density
asked by Anonymous 
Science 8R  help....!!!!
What happens during a solar and a lunor eclipse?
asked by Lauren 
frame reference
an aeroplane flys with an air speed of 40m/h at a bearing of 20degrees while at the same time is blowing at 100km/h at a bearing of 90degrees.now determine the speed and direction of the plane as seen by the observer on the ground
asked by abrina 
maths
A car travels 140 km during the journey it averages 35 km\h.how long will it take to travell this distance
asked by justin matthew holland 
maths
The variables x and y satisfy the equations 2/x−24/y=−1 and 6/x+33/y=2. Find the product xy.
asked by Rox 
Algebra
Simplify 1y^2 ____________ y^24y5
asked by LaShawn 
Algebra
Multiply. x^2+x6 * x^3y _______ _________ xy^2 x^2+6x+9
asked by LaShawn 
math
What are the last three digits of the number N=2(1!)!+2(2!)!+...+2(1000!)!?
asked by harsh 
Calculus
calculate and simplify f(5+deltat)f(5) all over delta t the model is f(t) = 72t+11t^2 for 3lessthanequal t lessthanequal 11
asked by Henry 
chemistry
In raction NH3 + 5 O2 > 4 NO + 6 H20 . I 1 mol NH3 and 1 mol O2. what is the limiting reactant? ow Much NO will form?
asked by Fakhrywik 
MA110/ help pleaae
How do u solve 1000 base 10 compare to 200 base 10
asked by Enis 
math
Solve 2 x4 _ ___ 3= 6
asked by Lady Green 
algebra
Divide 6x^3y^6 / 24x^4y^3 _______ _________ 16a^4b^2 14a^7b
asked by LaShawn 
math
how do i solve 9(w3)=8w7?
asked by Maria 
Math
If 1inch equals 24ft how big is a 9ft by 7and half ft rug
asked by Anonymous 
math
Suppose P is an invertible 3×3 matrix with real entries and P4=2P. Find the determinant of 7P.
asked by harsh 
Algebra
Divide {6x^3y^6} / {24x^4y^3} _______ _________ {16a^4b^2} {14a^7b}
asked by LaShawn 
english
how should this sentence be written: with stethoscope in place, he or she tightens the valve. does the comma go after stethescope or is their no need of comma
asked by jj 
Early childhood
Foundations of development
asked by Monique 
Applied maths
Evaluate in the domain of complex variables. a) [3(cos〖55°〗+j sin〖55°〗 )]^2 b) (5.0/15°)^3 c) (52/42°)^(1/2) d) ∜4
asked by DAVID 
college algebra
Solve equation x+3=2x Not sure which way to go to solve. Thanks
asked by Anonymous 
english
the stethescope, when used with a special inflatable cuff and dial, can also be used to check a persons blood pressure. which word if added to the eggining will help understand that another use for the stetscope is going to be disscussed and then however
asked by Anonymous 
science
Can chemical properties be used to separate substances?
asked by Anonymous 
Business Analysis
Mahalyk's Water Fun Shoppe specializes in jet skis. Mahalyk's inventory records showed the following for the past year. Purchase Date Number of Jet Skis Cost Per Jet Ski February 10 30 $4,000 May 12 80 $3,000 June 15 20 $3,500 July 20 15 $2,500 Use the
asked by Anna 
math
i have a garden 22meters long and 14 meters wide how do i find the area ana the perimeter
asked by adriana 
Physics (vectors)
Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (1, −3) − (5, g) = (h, 2)
asked by Kathy 
Math
What is a counter?
asked by Anonymous 
Physics (vectors)
Could you please help me with this exercise? Thanks. Adding and substracting vectors Solve for the unknown variables: (a) (a, b) + (3, 0) = (6, 7) (b) (11, c) + (d, 5) = (12, −3) (c) (5, 5) + (e, 4) = (2, f) (d) (1, −3) − (5, g) = (h, 2)
asked by Kathy 
Math
225=14tt
asked by Donna 
life orientation
challenges of hiv/aids in the community
asked by matete latoya 
chemistry
what are the fundamental particles in antifreeze
asked by k 
science
how much oxygen does a mass of 10 grams contain
asked by johnnie 
Business Communitcation
Features alone ralely motivate readers. Instead, link the feature to the audience's ____ and proide details to make the benefit vivid.
asked by Anonymous 
maths
It is given that sin(θ)=1/√15. In addition, a and b are coprime positive integers such that cos(2θ)=a/b. What is the value of a+b?
asked by Rox 
pre cal
3(2x1)^2 (2) (x+3)^1/2 + (2x1)^3 (1/2) (x+3)^1/2
asked by shenyce