Questions Asked on
October 26, 2011

Science
Use the terms atom and element to explain what makes silver and gold different.
asked by Carlos PLEASE 
Chem 101
Using the "Unit conversion method", derive an equation to calculate the heat required to raise the calorimeter to the maximum temperature.
asked by John 
CHEMISTRY
for the reaction system H2 + X2 2HX Kc = 24.4 at 300 K a system made up fron these components which is at equilibrium contains 0.150 moles of H2 and 0.600 moles of HX in a 3.00 liter. calculate the number of moles of X2 present at equilibrium.
asked by HELPP 
chemistry
Calcium oxide reacts with water in a combination reaction to produce calcium hydroxide: CaO(s) + H2O(l) ¨ Ca(OH)2(s) In a particular experiment, a 2.00g sample of CaO is reacted with excess water and 2.14 g of Ca(OH)2 is recovered. What is the percent
asked by Jess 
chemistry
3.6 g of a hydrocarbon fuel is burned in a calorimeter that contains a 244 grams of water initally at 25.00 degrees C. After the combustion the temperature is 26.55 degrees C. How much heat is evolved per gram of fuel burned? The heat capacity of the
asked by Aubrey 
Chem 101 calorimeter
Using the "Unit conversion method", derive an equation to calculate the heat required to raise the calorimeter (2 nested styrofoam cups) to the maximum temperature. PS don't say it makes no sense because its obviously a real question
asked by Guapo 
Maths
A right pyramid on a base 4cm square has a slant edge of 6cm.calculate the volume of the pyramid
asked by Vivian 
Science
Use the terms atom and element to explain what makes silver and gold different. I've looked online but can not find an answer. Please help and thanks.
asked by Carlos PLEASE HELP ME 
Statistics
A survey organization takes a simple random sample of 625 households from a city of 80,000 households. On the average, there are 2.30 persons per sample household, and the SD is 1.75. Say whether each of the following statements are True or false and
asked by Joyann 
chemistry
The vapor pressure of water at 80 degrees c is 355mmHg. A 100cm3 vessel contained wateraturated oxygen at 80 degrees c., the total gas pressure being 760 mmHg. The contents of the vessel were transferred by pumping to a 50cm3 vessel at the same
asked by el 
Help. Physics
At the center of a 41.0 m diameter circular ice rink, a 61.0 kg skater traveling north at 1.05 m/s collides with and holds onto a 77.0 kg skater who had been heading west at 1.90 m/s. How long (in seconds) will it take them to reach the edge of the rink
asked by ME 
Chemistry
In the Formula... Na+ + NO2 + HSO3NH2 > HSO4 + H2O + N2 + Na+ which I know has a 1:1 ratio, How do I figure out the Moles of N2 gas expected. Molar volume = 24.627 L/mol Moles of N2 produced = .0067 mol Volume of N2 gas of STP = .165 L Original used
asked by Nadia 
Math please help
A farmer has 120 feet of fencing available to build a rectangular pen for her pygmy goats. She wants to give them as much room as possible to run. What are the dimensions of the rectangular pen with the largest area?
asked by By Lana 
chemistry
How many grams of NH4Cl must be added to 0.490 L of 1.70 M NH3 solution to yield a buffer solution with a pH of 9.40? Assume no volume change. Kb for NH3 = 1.8 105.
asked by kelly 
Math
Julie and Eric row their boat (at a constant speed) 21 miles downstream for 3 hours, helped by the current. Rowing at the same rate, the trip back against the current takes 7 hours. Find the rate of the current.
asked by Hollana 
Science
which of these two methyl orange and phenolphthalein gives more reliable and consistent results in the titration of H3PO4 with NaOH
asked by Ro 
Chemistry
Show, with equations, why the solution from which BaSO4 is precipitated cannot be allowed to be more than 0.010.05M in HCl.
asked by Anonymous 
Science
Is the answer D? Thank you The earliest atmosphere of Earth is not believed to have contained oxygen. Which cellular component would not have been useful at that time? A) chloroplast B) nucleus C) plasma membrane D) mitochondrion
asked by Jason 
Physics...help!
A sled slides along a horizontal surface on which the coefficient of kinetic friction is 0.30. Its velocity at point A is 7.6 m/s and at point B is 4.0 m/s. Use the impulsemomentum theorem to find how long (in s) the sled takes to travel from A to B.
asked by Me 
Biology 110
Name the 4 functions of the respiratory system. 1. 2. 3. 4.
asked by Susan Yi 
biology
Name 4 functions of the respiratory system.
asked by sara may 
math
write .98 as a fraction of a dollar in simplest form
asked by Anonymous 
Physics
Use conservation of energy to determine the angular speed of the spool shown in Figure P8.36 after the 3.00 kg bucket has fallen 3.20 m, starting from rest. The light string attached to the bucket is wrapped around the spool and does not slip as it
asked by Nicole 
Accounting
Could someone please look this over and tell me if I have this correct? I am not confident in the Trial Balance. May 1 Cash 101 25,000 Common Stock 311 25,000 3 Supplies 126 2,500 Accounts Payable 201 2,500 7 Rent Expense 729 900 Cash 101 900 11 Accounts
asked by Student of Accounting 
Chemistry
what is the mass of product that can be prepared from 1.00g of zinc metal?
asked by Lovinsky 
General Chemistry
How do I calculate the concentration of KmNO4 when.. Initial Volume is 50mL 0.11g sodium oxalate Volume of KMnO4 used to titrate oxalate and acid= 34.0 mL Volume of KMnO4 used to titrate acid only= 0.10 mL Please help me Thank you!
asked by Ashley 
chemistry
how would I draw the expanded formula for isopropylcyclopropane?
asked by dominique 
Biology
What are the three reaction pathways which pyruvate undergoes in the metabolic pathways inside the cell and what are the names of the final products of each of these pathways?
asked by Tommy 
Physics
A rock of mass m = 1.8 kg is tied to a string of length L = 2.4 m and is twirled in a vertical circle as shown in the figure below. The speed v of the rock is constant; that is, it is the same at the top and the bottom of the circle. If the tension in the
asked by Freud 
Chemistry
Suppose that a 0.6123g unknown chloridecontaining sample was dissolved, and and AgCl precipitated by adding a AgNO3 solution. The precipitate was filtered, ignited, and found to weigh 0.3324 g. What was the percent chloride in the unknown?
asked by Anonymous 
Hardware
Choose a commonly used microprocessor, Intel Core or IBM Power6. What data types are supported? How many bits are used to store each data type? How is each data type represented internally?
asked by Mike 
statistics
1. The oncampus housing costs for a semester at a state university are Normally distributed with a mean of $1553 and a standard deviation of $329. (a) What is the distribution of the mean oncampus housing cost for a semester at this university for a
asked by Sarah 
OChem
A solution consisting of water and ethanol is found to have a refractive index of 1.3541 at 20 degrees C. The refractive indices at 20 degrees C of water and ethanol are 1.3330 and 1.3610, respectively. Determine the molar composition (in percent) of the
asked by Omar 
4th grade math
What is an expanded algorithm? Son doesn't know and didn't bring home his textbook, any ideas?
asked by Sandy 
Calculus
Find the total mass of the triangular region with coordinates (1,0),(0,4),and (1,0). All lengths are in centimeters, and the density of the region is (x)=5+x grams/c^m2. I know that to get the total mass i have to do density* lenght and ingegrate, but I
asked by Caroline 
Physical Science Concepts
1) the industrial revolution occurred at about the same time as the growth of the theory of electromagnetism. a)What were some of the causes of the industrial revolution? b)What technology and industry can be assciated with the emergence of the
asked by christopher 
Physics
Problem 17.6 A heliumneon laser beam has a wavelength in air of 633nm . It takes 1.48 ns for the light to travel through 31.0 cm of an unknown liquid. Part A  What is the wavelength of the laser beam in the liquid? Express your answer with the
asked by Paige 
Chemistry
Decomposition reaction: CH2=CH2(g)> CH4(g) + C (Graphite) If the decomposition begins at 10c and 40.0 atm with a gas density of .215 g/ml and the temp increases by 950K. (a) what is the final temperature of the confined gas (ignore volume of graphite
asked by Tor 
interpret ELA
"I'm thirty five years old; I been married eleven years and i got a boy who sleeps in the living roomand all i got to give him is stories about how rich white people live" INTERPRET THIS STATEMENT
asked by FITTY 
science
which abiotic factor separates marine ecosystems from river ecosystem? A)sunlight B)salt C)sand D)algae
asked by miki 
Chemistry
4.00 g dm^3 of impure sodium carbonate is used in a titration. What could have caused the impurity in the sodium carbonate?
asked by ? 
math
Writing to Explain If you know that 7 x 8 =56, how can you use the Commutative Property of Multiplication to find the product of 8 x 7?
asked by Isabella 
Chemistry
At 60 celsius the value of Kw is 9.5x10^14. considering this waht is the calculated value for the pOH of a 2.00x10^3 M HCL solution at this temperature? the answer is 10.32 i do the log and i get 11.31 please advice
asked by HELPP 
Physics
Problem 17.6 A heliumneon laser beam has a wavelength in air of 633nm . It takes 1.48 ns for the light to travel through 31.0 cm of an unknown liquid. Part A  What is the wavelength of the laser beam in the liquid? Express your answer with the
asked by Paige 
physics
Find the net torque (magnitude and direction) produced by the forces F1 (F1 = 17.3 N) and F2 (F2 = 26.1 N) about the rotational axis shown in the drawing. The forces are acting on a thin rigid rod, and the axis is perpendicular to the page. (x = 0.323 m, y
asked by Sami 
physics
Find the net torque (magnitude and direction) produced by the forces F1 (F1 = 17.3 N) and F2 (F2 = 26.1 N) about the rotational axis shown in the drawing. The forces are acting on a thin rigid rod, and the axis is perpendicular to the page. (x = 0.323 m, y
asked by Sami 
Science
Four students each added salt crystals to water and measured the time it took for all the crystals to disolve. The following table shows their results. A threecolumn table, with column headers 'Student, 'Temperature (°C), 'and 'Time (sec).' For Marcus,
asked by Mary Helpppppp 
science
The reaction 2SO + O2 ¨ 2SO3 is exothermic. (a) How will a rise in temperature affect the yield of SO3 in an equilibrium mixture of the three gases? (b) Will an increase in pressure raise or lower the yield? (c) In what possible way can the speed of the
asked by Sheryl 
french
thank you so much for taking so much time into helping me perfect my french essay I have done the corrections you have told me to do and I was wondering if you could go through and make sure the lanuage and grammar are all perfect. And thank you I really
asked by Ellie 
skylin
Two 75.0kg hockey players skating at 5.75 m/s collide and stick together. If the angle between their initial directions was 135°, what is their speed after the collision? (Let the motion of player 1 be in the positive xdirection and the motion of player
asked by fad 
Physics
A simple Atwood's machine uses two masses, m1 and m2. Starting from rest, the speed of the two masses is 7.0 m/s at the end of 7.0 s. At that instant, the kinetic energy of the system is 60 J and each mass has moved a distance of 24.5 m. Determine the
asked by Kayla 
physics
Potential energy and kinetic energy are forms of what kind of energy? 1. mechanical 2. nuclear 3. heat 4. electromagnetic 5. chemical
asked by lynn 
Science
Reggie has a sample of raw sugar made up of large particles and a sample of white sugar made up of much smaller particles. He dissolved 1 tsp. of each sample in 1 cup of water. Which dissolved fastest? a) Both dissolved at the same rate b) The white sugar
asked by Regina ????????? 
Science
A 110.0 kg box is pushed by a horizontal force F at constant speed up a frictionless ramp which makes an angle of 35.0 deg with the horizontal. Find the magnitude of the applied force F.
asked by Mark 
chemistry1
How many mL of 0.200 M NaOH are needed to titrate 20.0 mL of 0.100 M H2SO4?
asked by emma 
chemistry
how long would it take a radio wave with a frequency of 7.25 x 10to the 5th to travel from Mars to earth if the distance is approx. 8.0 x 10 to the 7th?
asked by karen 
physic
A 1.20{\rm kg} block of wood sits at the edge of a table, 0.720 m above the floor. A 1.20×10−2{\rm kg} bullet moving horizontally with a speed of 750 m/s embeds itself within the block
asked by chris 
Math
Am having trouble figuring out how to work this problem. We are currently studying about least common multiples. The problem is: Stacey jogs every third day and swims every fourth day. If she is jogging on Monday, what day of the week will she end up
asked by Brandi 
Science
Organisms that maintain a constant body temperature rely on the heat produced by cells. Where does this heat come from? A) Special metabolic pathways exist just for the production of heat. B) Mitochondria produce heat in the form of ATP. C) Plants store up
asked by Jason 
science
if the radius of a metal hoop that surrounds a silo were to expand by 1.00 m, the circumference of the hoop would increase by 6.28 m. If a metal hoop that completely surrounds the earth were to thermally expand so that its radius increased by 1.00m , by
asked by Debra 
Chemistry
Our class did an expeiment of adding sodium carbonate and calcium chloride. The experiment only yielded 28% of the calculated yield. The class did the experiment as a group (there are only 4 students in our class) and the experiment was closely supervised
asked by Robert 
statistics
For a hypothetical normal distribution of test scores, approximately 95% fall between 38 and 62, 2.5% are below 38, and 2.5% are above 62. Given this information, (a) the mode=_____ and (b) the standard deviation=_____.
asked by Scott F 
physics
Four objects are held in position at the corners of a rectangle by light rods . m1 2.90(kg) m2 1.90(kg) m3 4.50(kg) m41.90 (kg) (a) Find the moment of inertia of the system about the xaxis. Answer in kg · m2 (b) Find the moment of inertia of the system
asked by Allie 
Math
Tile Pattern... A design starts with 1 tile and it continues to grow the next day to 4 tiles and on the third day there is 13 tiles. How many tiles will there be on the 10th day? How many tiles on the 50th day? Find a formula for any number?
asked by Linda 
Consumer Math
Ricki Cohn Encyclopedia sales Commission rate: 11% Month’s sales: $2,550 What is the monthly commission?
asked by jimmy 
CHEMISTRY
If the OH ion concentration in an aqueous solution at 25 celsius is 3.4x10^3 M the the H concentration in moles per liter in the same solution is? answers is 2.9x10^12 i do the log and i get 2.46 i don't know that else
asked by HELPP 
Chemistry
A student made a determination of the empirical formula ot tungsten oxide (WO) produced by the total ignition of air of a smaple of metallic Tungsten. From the lab: Weight of crucible 11.120g weight of tungsten 8.820 weight of crucible and product (WO)
asked by Izzie 
al gebr word problem MATH
parts to fix your car cost $55.35. the mechanic charges $35 per hour for labor. the final bill is $177.85. how long did the mechanic work on your car? write and solve an equation. show work. i got; 177.85  55.35 = x x / 35 = is this almost right? im not
asked by marko 
Phyisics
A 2kg hallow sphere of a radius 6cm starts from rest and rolls without slipping down a 10 degree incline. if the length of the incline is 50cm then the velocity of the center of mass of the hallow sphere at the bottom of the incline is?
asked by JP 
Science
It’s OK to say that your brain is solar powered, because A) mitochondria in plant cells convert solar power to the chemical power that is used to run your brain. B) cellular respiration is powered by sunlight. C) the antenna complex in chloroplasts acts
asked by Frank 
Calculus
Find the value of the derivative at each indicated extremum.
asked by Alexis 
math
with a mean of 515 and a standard deviation of 135, what percentage score 110515 using the 689599.7 rule
asked by Ron 
science
A pig eats nuts,berries,fungi and insects.What type of consumer is a pig A)producer B)consumer C)omnivore D)decomposer
asked by miki 
literary
I tried to rewrite the essay please check it for me again . Thank you Sra Antigone and Whale Rider In the play Antigone by Sophocles and movie whale rider directed by Caro. The two characters are Paikea and Antigone both has similarities in common. Both
asked by manal 
math
Tony is making flower arrangements. He is using 3 different kinds of flowersroses, daisies, and tulips. Each arrangement will have the same number of each kind of flower. He figures that if he uses all the flowers, the greatest number of arrangements he
asked by steve 
social studies
How did Capitalism change during the Industrial Revolution?
asked by Savanah 
Math
solve 6/y+4=5/y4
asked by Abby 
physics
A moving car has kinetic energy. If it speeds up until it is going four times faster than before, how much kinetic energy does it have in comparison? 1. The mass is needed. 2. The same 3. Sixteen times larger 4. Four times smaller 5. Four times larger 6.
asked by lynn 
Chemistry
Calculate the mass of sodium sulfate decahydrate need to make a 500ml solution that is .025m in sulfate anion?
asked by Pam 
physics
A 4.36 × 10−5 kg raindrop falls vertically at constant speed under the influence of gravity and air resistance. After the drop has fallen 88.1 m, what is the work done by gravity? The acceleration of gravity is 9.8 m/s2 . Answer in units of J
asked by lynn 
physics
you could produce a sample containing 2,400,000 free neutrons, what would it be 2658 seconds later? A) 300,000 neutrons, 2,100,000 protons, and 2,100,000 electrons. MY ANSWER B) 300,000 neutrons and 2,100,000 protons C) 300,000 neutrons, 2,100,000 protons,
asked by Anonymous 
Physics
A diver in Acapulco jumps off a 150 ft cliff. His forward motion is 10 feet per second. The base of the cliff at the waters edge extends 38 feet beyound the top edge of the cliff. Will the diver land in the water?
asked by Clay 
Maths
Calculate the volume and curved surface area of a cone 14cm in base diameter and 24cm high
asked by Vivian 
Algebra 2 Linear Programming
Find the values of x and y that maximize or minimize the objective function. x+y < or equal to 8 2x+y < or equal to 10 x> or equal to 0, y > or equal to 0 A. (0,5) Maximum value is 100 B.(1,7) Maximum value is 220 C.(2,6) Maximum value is 280 D. (5,0)
asked by LaH 
Geometry
answer to a two column proof problem such as Given: angle 1 and angle 5 are congruent and angle 5 is congruent to angle 4 prove angle 3 is comgruent to angle 1
asked by mea 
7th grade Algebra
4w9(65w)=44;w=3 decide whether the given value is a solution of the equation if not find the solution
asked by Maria 
Science
Reggie has a sample of raw sugar made up of large particles and a sample of white sugar made up of much smaller particles. He dissolved 1 tsp. of each sample in 1 cup of water. Which dissolved fastest? a) Both dissolved at the same rate b) The white sugar
asked by Regina ????????? 
physics
A ball rolls off of a table with a speed of 2 m/s. The table is 1.2 m high. How long will it take to the ball to hit the ground?
asked by kimberly 
Statisitcs
Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 25 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends
asked by Carmella 
physics!
how much work is done by each force acting on vacuum cleaner as it is pulled horizontally 3 m at a constant speed by a force of 50 N at an angle of 30degrees above the horizontal?
asked by kennedy 
umt
2. A charge of 3.00 µC is fixed at the center of a compass. Two additional charges are fixed on the circle of the compass (radius = 0.1 m). The charges on the circle are 4.0 µC at the position due north and +5.0 µC at the position due east. What is
asked by roy 
business
1. Choose a real or made up example of a company, and describe at least three variable costs the company has
asked by anthony 
business communication
You are writing to a reader who favors a different solution than the one you recommend. Which of the following is MOST likely to persuade the reader? A. Describe your reader's solution first, explain why it won't work, and then go on to describe your own
asked by Stacey 
ENGLISH HW CHECK
Choose the correct answer for the ALL CAP word 1. My father always COMPLAINS that my sister's boyfriend is lazy. Answer a. complains b. complain c. complained d. complaining 2. Uncle Frisbee, who BE as bald as a grapefruit, buys every new hairgrowing
asked by Anonymous 
science
How many joules are taken in by a man who eats 4000 calories of food each day? What is this person's average thermal power output? 4000 x 4.186 =16 744Joules, but I don't understend second question, Thank you for helping me.
asked by Debra 
maths
write each of the following as trigonometric ratios of acute angles. (a)sin160 degrees (b)cos 310 degrees (c)tan 200 degrees
asked by chrystabelle 
PreAlgebra
A movie projector is 6 ft away from the screen showing a rectangular picture that is 3 ft wide and 2 ft high. A. Suppose the projector is moved to 12 ft from the screen. What size will the picture be (width, height, and area)? I figured 6 wide, 4 high, 24
asked by Colton 
physics
A hollow rubber ball with a diameter of 5.57 cm and a mass of 38.9 g is cut in half to make a boat (in a bathtub) for American pennies made after 1982. The mass and volume of an American penny made after 1982 are 2.5 g and 0.36 cm3. How many pennies can be
asked by maria 
Physics
A 8800 kg railroad car is rolling at 2.4 m/s when a 3100 kg load of gravel is suddenly dropped in. What is the car's speed (in m/s) just after the gravel is loaded? how do I relate these, I am confused.
asked by ... 
Calculus
Find the point on the line 3 x + y  5 =0 which is closest to the point ( 3, 3 ).
asked by Anonymous 
Physics
12. A baseball player throws a ball from left field toward home plate. Assume that you can neglect the effects of air resistance. At the instant the ball reaches its highest point, what is the direction of the ball's acceleration? A) up B) down C)
asked by Crystal 
math
mr jacob is 55 years old and tony is 7 years old. in how many years will mr. jacob be 4 times as old as tony?
asked by TJ 
ART
Thanks for the websites, I have a worksheet of a list of all the elements and principles, but i am still struggling as to which elements and which principles apply to this painting "Polly, Minou and Eon" by Will Barnet..any suggestions??
asked by Mandy 
Science
A golf ball is hit at ground level. The ball is observed to reach its maximum height above ground level 2.2 s after being hit. 1.3 s after reaching this maximum height, the ball is observed to barely clear a fence that is 780 ft from where it was hit. The
asked by Jahn 
Physics
The coefficient of static friction between the m = 2.95kg crate and the 35.0° incline is 0.345. What minimum force must be applied to the crate perpendicular to the incline to prevent the crate from sliding down the incline?
asked by Lala 
physics
A beautiful man with a large nose named Melvin lifts a 28.1 kg bucket from a well anddoes 4.24 kJ of work. The acceleration of gravity is 9.8 m/s2 . How deep is the well? Answer in units of m
asked by lynn 
math
farmer montague raises chicken and goats. she is not sure how many she of each animal. but she does know she has 22 animals all together. She also know that all together,her animals have 56feet. How many of each type animall does farmer montague have?
asked by rhea 
physics!
how much work is done by each force acting on vacuum cleaner as it is pulled horizontally 3 m at a constant speed by a force of 50 N at an angle of 30degrees above the horizontal?
asked by kennedy 
Science
Reggie has a sample of raw sugar made up of large particles and a sample of white sugar made up of much smaller particles. He dissolved 1 tsp. of each sample in 1 cup of water. Which dissolved fastest? a) Both dissolved at the same rate b) The white sugar
asked by Regina PLEASE 
Science 6TH Grade
Salim added 1 g of salt to each of four beakers filled with water. He stirred the water at different speeds, and recorded how long it took for the salt to dissolved. Stirring  Time (sec) No stirring  25 Slow stirring  18 Medium stirring  10 Fast
asked by Mary PLEASEEEEE 
chemistry
Calculate the normal freezing point of an aqueous solution containing 30% w/w ethylene glycol. Thanks
asked by el 
Everst
Suppose you are a stock market analyst specializing in the stocks of theme parks, and you are examining Disneyland’s stock. The Wall Street Journal reports that tourism has slowed down in the United States. At Six Flags Magic Mountain in Valencia,
asked by Beverly 
physics
A 1.20 block of wood sits at the edge of a table, 0.720 above the floor. A 1.20×10−2 bullet moving horizontally with a speed of 750 embeds itself within the block. What horizontal distance does the block cover before hitting the ground?
asked by chris 
Math
In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that: (A) exactly two will have this mild side effect (B) at least
asked by Jen 
math
matt rides his bike between 19 and 22 blocks each day. what would be a reasonable estimate of how much he rides in a week.
asked by michael 
physics
a force of 20n applied parallel to the surface of a horizontal table is just sufficient to make a block of mass 4.kg move on the table caculate thd coefficient of friction between the block and the table
asked by fawaz 
physics
A 16 kg block slides down a frictionless slope which is at angle θ = 20◦. Starting from rest,the time to slide down is t = 1.88 s.The acceleration of gravity is 9.8 m/s2.
asked by Anonymous 
Math, Please Help!!!
How can the right equation be converted into the answer on the left? (sec^4x)(tan^2x)=(tan^2x + tan^4x)sec^2x
asked by Misty 
dictation
could you please hold the door open for me?
asked by sher 
statistics
Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 25 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends
asked by Marcus 
law office management
when one person has the power and authority to make all decisions for the firm it is known as an _______ type of management. a. management by committee b. autocratic c. management by stakeholders d. executive committee im confused between A and D
asked by Nile 
Physics
A steel ball is luanched on a table to be 4.0 m/s. If the tabletop is 1.5m tall then where should you place a 20cm tall can to catch the ball where it lands?
asked by Achlys 
math
set S contains all integers from 100 to 200, inclusive. if x is a number in S that is multiple of both 6 and 10, what is one possible value of x?
asked by reena 
Chemistry
Why would the percent recovery obtained over 100% in a an experiment dealing with the cyclic chemical reactions of copper?
asked by R 
math
Bill buys x items at $3 each, y items at $5 each, and z items at 6 each. If x,y,and z are each multiple of 5 and the total price of the items costing $3 and $5 is 55, which of the following could be the total price of all x +y+z items?
asked by reena 
chemistry
what is the geometry around the carbon in dichloromethane?
asked by dominique 
Physics
A place kicker must kick a football from a point 37.1 m from a goal. As a result of the kick, the ball must clear the crossbar, which is 3.05 m high. When kicked the ball leaves the ground with a speed of 19.8 m/s at an angle of 53° to the horizontal. (a)
asked by shmza 
Int. Algebra
The spread of oil leaking from a tanker after t hours is in the shape of a circle with radius r(t) = 200 square root t+3,  600 (in feet). A. Find the time it takes for the leak to spread at a radius of 1800ft. B. Find the area A of the oil leak as a
asked by Mv 
Science
It’s OK to say that your brain is solar powered, because A) mitochondria in plant cells convert solar power to the chemical power that is used to run your brain. B) cellular respiration is powered by sunlight. C) the antenna complex in chloroplasts acts
asked by Frank 
Physics
Consider a frictionless track as shown in the figure below. A block of mass m1 = 5.75 kg is released from A. It makes a head on elastic collision at B with a block of mass m2 = 8.00 kg that is initially at rest. Calculate the maximum height to which m1
asked by Ellen 
Physics
An airliner is at point A and is trying to fly to point B, which is 1000 km due North of point A. The pilot of the airliner wishes to reach point B in 2.5 hr. A wind is blowing from the Northwest (45 degrees) at 100 km/hr. In what direction and at what
asked by Eliyahna 
computer sciece
#include #include int main() { int num[100]={0}; int i,n=0; for(i=0; num[i] != EOF ; i++,n++) { scanf("%d",&num[i]); } printf("%d\n", i); while(i=0;i
asked by Tracy 
French
thank you so much for taking so much time into helping me have a perfect french essay! I have done the corrections you have told me to do. If i have left something out please state. Could you please go through the essay and make sure the lanuage, grammar
asked by Ruth 
Chemistry
For a chemistry lab the experiment was to carry out an acidbase titration to determine the exact concentration of a sodium hydroxide solution. Two trials were completed and the data collected was: mass of weighing paper, mass of weighing paper + KHP, mass
asked by Hannah 
AP US History
Compare and Contrast the effectiveness of Washington's and Adams' presidencies in obeying and promoting the Constitution during their administrations. So far I have: The main compromises made when writing and ratifying the Constitution were the
asked by Lauren 
Physics
An airliner is at point A and is trying to fly to point B, which is 1000 km due North of point A. The pilot of the airliner wishes to reach point B in 2.5 hr. A wind is blowing from the Northwest (45 degrees) at 100 km/hr. In what direction and at what
asked by Eliyahna 
MathPLEASE. HELP.
Write an equation for the linear function f with the given values. f(4)=8, f(3)=1
asked by Izzy 
English
Can someone edit this essay? Topic is "if given funding for a small engineering project, what would you do?" 250 word limit Millions of Americans purchase bottled water everyday simply because they don't like the taste of their own tap water. While most
asked by Mathew 
English language
English is not my first language and someone just told me: 'my mom was asking about you', what does it mean and what people usually reply to that sort of statement? Thanks
asked by Viola 
Statistics
Assume you want to estimate with the proportion of students who commute less than 5 miles to work within 2%, what sample size would you need?
asked by Carmella 
physics
A 170 kg physics professor has fallen into the Grand Canyon. Luckily, he managed to grab a branch and is now hanging 53 m below the rim. A student (majoring in linguistics and physics) decides to perform a rescue/experiment using a nearby horse. After
asked by lynn 
Managerial finance
After considering all the relevant factors, would you recommend a zero coupon issue or a regular coupon issue? Why? Would you recommend an ordinary call feature or a makewhole callfeature? Why?
asked by kim 
Physical Science Concepts
Atutomobile lcollecg stations a thin metal wire sticks up from the road and makes contract with cars before they reach the toil collector. What is the pupose of this wire?
asked by christopher 
Math 010
if carlos has $45 and spends $x for lunch, how much money does he have left ?
asked by Anthony 
Reimbursement Methodologies
You work in the hospital information Management, part of my job to assist medical resident with completing the record documentation.
asked by Lennox 
math
Explain how to get the variable alone in each equation..x + 13 = 25 x + 13  13 = 25  13
asked by andy 
Did i do this right??? STATS
3. In testing a new drug, researchers found that 10% of all patients using it will have a mild side effect. A random sample of 14 patients using the drug is selected. Find the probability that: (A) exactly two will have this mild side effect (B) at least
asked by Jen 
Language
Can someone help me with the following analogy? colloquy:loquacious a)somnambulism:ambulatory b)plateau:flat c)octahedron:eight d)toponym:noun
asked by Carson 
Calc
How do you do the derivative of an inverse trig function? arcsin (sqrt2/2)??
asked by Hannah 
maths
find the general solution of the following first order differential equation. dx/d(theta)=(xtan(theta))(cos(theta))
asked by Markus 
Economics
assume that gross national debt is equal to $3million and the federal government then runs a deficit of $300 billion. What is the new level of gross national debt
asked by Karen 
chemistry
what is the volume in liters of 3.0 moles CH4, at 26C and 1.48atm?
asked by h 
chemistry
a 0.296g of CO2 has a volume of 565ml and a pressure of 425mmHG, what is the temperature??????
asked by michelle 
criminal law
conspiracy is an ______ crime a. accessory after the fact b. general intent c. specific intent d. structure is it B
asked by john 
English
I'm terribly sorry. I included that sentence again by mistake. Thank you very much for your corrections!
asked by Henry2 
physics
a force of 20n applied parallel to the surface of a horizontal table is just sufficient to make a block of mass 4.kg move on the table caculate thd coefficient of friction between the block and the table
asked by fawaz 
criminal law
typically the chronological, ______ of a child is used to determine criminal responsibility rather than mental capacity. a. age b. well being c. health d. sanity im confused between A and D
asked by john 
math
Aldo invested his savings in two investment funds. The $24, 000that he invested in Fund A returned a 1% profit. The amount that he invested in Fund B returned a 5% profit. How much did he invest in Fund B, if both funds together returned a 2% profit?
asked by George 
math
if the ratio of rose bushes to trees in the yard is 3 to 1. Which of these shows possible numbers of roses to trees in the yard.
asked by casey 
CHEMISTRY
at 1500 celcius the system 2NON2+O2 was allowed to come to equilibrium. the equilibrium concentrations were NO=0.00035M N2=0.040M O2=0.040M What is the value of Kc for the system at this temperature? The answer they give is 1.3 x10^4 Im getting 2.2 x10^1
asked by HELPP ME 
MATH
FACTOR COMPLETELY c^3 + 8
asked by Cornelius 
Science (urgent)
Hi I really need to know this I've asked a couple times but haven't gotten an answer yet. In the reaction X + Y ® Z, Z is the A) substrate. B) product. C) enzyme. D) carbon molecule.
asked by Jake 
bio
what will happen to a red blood cell place in a solution of 99.3% water and 0.7% salt?
asked by alex 
Physics  Energy
Two comets, each of mass 6500 kg and traveling 88 m/s in opposite directions, collide headon and come to rest. How much energy is produced in this collision? Thank you!
asked by Alex 
French
I am posting just the CORRECTIONS! Can the corrections be put immediately after the error as you said, thanks. When you use (...) and etc do you mean the rest of the sentence is right? Could you please give an example of where a semicolon could be used in
asked by Ruth 
math
Which of the following can be the average(arithmetic mean ) of four consecutive positive even integers?
asked by reena 
physics
1. A small railroad engine is able to exert 8•105 N of pulling force. The coefficient of friction for steel wheels on steel rail is 0.4. Each rail car has the approximate mass of 20 tons How many cars can this engine pull on a level track?
asked by hary 
Algebra
The average cost per drink can be found by dividing the total cost (.25x+250=total cost) by the number of drinks sold (x). Write an equation that shows the average cost per drink.
asked by Kelly 
Calculus
I know I posted this problem earlier but I don't think it will be seen anymore since it's almost at the end of the page: Find the total mass of the triangular region with coordinates (1,0),(0,4),and (1,0). All lengths are in centimeters, and the density
asked by Caroline 
physics
Donald Duck and his nephews manage to sink Uncle Scrooge's yacht (m = 4843 kg), which is made of steel (ρ = 7850 kg/m3). In typical comicbook fashion, they decide to raise the yacht (which is now on the bottom of a lake) by filling it with pingpong
asked by maria 
pre cal
how do you solve f(x)= G(X) and find the points of intersection of the graphs of the 2 functions f(x)= x^2 + 5x+ 13 g(x)= 19
asked by xyz 
Physics help please
A 13.2 gm bullet is fired into a 12.0 kg wood block that is at rest on a wood table. The block, with the embedded bullet, slides 5.00 cm across the table. Assuming that the local acceleration due to gravity is 9.80m/s2 and that the coefficient of kinetic
asked by Iamdumb 
pre cal
how do you solve f(x)= G(X) and find the points of intersection of the graphs of the 2 functions f(x)= x^2 + 5x+ 13 g(x)= 19
asked by xyz 
Algebra
Add. Simplify if possible. 3/v+8/v^2
asked by Kelly 
philosophy
Truth tables can determine which of the following? (Points : 1) If an argument is valid If an argument is sound X If a sentence is valid All of the above
asked by bean 
Mathematics
How do i post the answer hence i don't the answer .In geometry.an equalateral triangle has the length of it's sides given as (y + 3)cm, (2y  x)cm and (4x + 3). Find the (a) value of x and y, (b) perimeter of the triangle (c) altitude of the triangle to
asked by Anonymous 
physics
A ball of radius 0.2m rolls along a horizontal table top with a constant linear speed of 3.04 m/s. The ball rolls off the edge and falls a vertical distance of 2.02m before hitting the floor. What is the angular displacement of the ball while it is in the
asked by Sami 
Math1239
x=4 cost, y= 2 sint on the interval 0 ≤ t ≤ 2π what is the Cartesian equation? nd describe the graph giving the (x,y) coordinates ... stating the initial point and the terminal point. ? i found the cartesian equation as y= square root of 4x^2/4 plz
asked by Mark J 
Maths Grade 8
m^2m6 m^2 _________ x ______ m^29 m^2+2m
asked by Aldwin 
maths
help find the general solution of the following first order differential equation. t*(dy/dt) = (y/t) + ((exp(1/t)/t^3) could you show steps in working to sol.
asked by ryan j 
physics
Tigger likes to play golf. For this particular shot, the distance between the spine and the clubhead (aka the distance of the golfclub + arm) is 1.6 m. When the clubhead hits the ball, it is travelling at 50 m/s. How fast is the body and the club rotating?
asked by Tyler 
buissness math
Determine the total in Dexter's account after the second month using the information below. Dexter Banler's account Principal: $1,604 Rate: 10% compound Length of period: month $3208.00 $1764.40 $1630.85 3. Ray Sugar's account Principal: $1,700 Rate: 9.5%
asked by morgan 
Physics
A baseball player throws a ball from left field toward home plate. Assume that you can neglect the effects of air resistance. At the instant the ball reaches its highest point, what is the direction of the ball's velocity? A) up B) down C) horizontal I
asked by Crystal 
English
Could anyone suggest a food that could go in Room 101. Room 101 is a room where you put all the foods you hate. I have been assigned to write a persuasive text on why i want this food to be put in room 101 and why. Kindly suggest a food that people
asked by Ruth 
college math
Aging in the United States In 2050, about 1 over 5 of the population will be aged 65 or over and about 1 over 20 of the population will be aged 85 or over. Estimate the fraction of the population that will be between the ages of 65 and 85 in 2050. (Source:
asked by tony 
math
if you use $63.00 divided by 9 to estimate $62.59 divided by 9 is $7.00 greater than or less than the exact number? explain
asked by emma 
Biology 110
Jane is 28 yrs old dx with MS. Explain to her 10yrs old, what MS is, why, how, and when did it happen?
asked by Susan Yi 
Just really need some help
Acela’s aging parents own a house and a car. Acela is currently living in the house with her parents. Her brother and sister are married and live elsewhere. Why is it important for Acela’s parents to have wills? What are some possible consequences of
asked by Bee 
punctuation
Please show me the correct way to punctuate the following or did I do it correctly: You can't pull my strings. I'm breaking away starting today.
asked by Mattie 
physics
A 1.2 kg ball is rolling down a friction free ramp at 21 m/s just before it hits level ground. How high was the ball when it started rolling?
asked by Lisa 
calculus
what is the maximum distance between f and g when f(x)=1/2x^2 and g(x)=1/16x^41/2x^2 on closed interval [0,4]
asked by nicole 
Language Arts
Please explain the power of language
asked by Damien 
Statistics
Facebook reports that the average number of Facebook friends worldwide is 175.5 with a standard deviation of 90.57. If you were to take a sample of 30 students, what is the probability that the mean number Facebook friends in the sample will be 190 friends
asked by Carmella 
physics
A 4.36 × 10−5 kg raindrop falls vertically at constant speed under the influence of gravity and air resistance. After the drop has fallen 88.1 m, what is the work done by gravity? The acceleration of gravity is 9.8 m/s2 . Answer in units of J What is
asked by lynn 
Math
what does 4  6 equal?
asked by Bob 
SOCIAL STUDIES
What state has a southwestern border with Colorado and an eastern border with Iowa?
asked by Jason 
Chemistry
Hi, This may sound like a dumb question but I am stuck. I have worked out everything from a titration and I am now trying to work out my overall % purity. It is 86.0% +/ 1.3% What will 86.0% + 1.3% be and what will 86.0%  1.3% be?
asked by Paula 
math
Take the product of twice ten and one half of my number. Divide it by four. You will get 25. What is my number?
asked by mlm 
math
i am a farmer he has $100 and he has to buy one hundred animals there is a chicken for $0.50 a goat for 3.50 and a sheep for $5 how many of each animal does he have to buy?
asked by retyut243 
Science
Salim added 1 g of salt to each of four beakers filled with water. He stirred the water at different speeds, and recorded how long it took for the salt to dissolved. Stirring  Time (sec) No stirring  25 Slow stirring  18 Medium stirring  10 Fast
asked by Mary Helpppppp 
Physics
When U238 decays into Pb206 via alpha and beta decay, what are the byproducts of the decay? A) 8 alpha particles and 6 beta rays. B) 8 alpha particles, 6 electrons, 6 neutrinos, and energy. MY ANSWER . C) 16 alpha particles, 16 beta rays, and energy. D) 16
asked by Anonymous 
MATH 7th GRADE
Would someone please be kind enough to check the answers for these problems?Last round for tonight. Thank you. 1. 3/16  1/8 = 1/16 2. 151/4 11 5/8 = 3 5/8 3. 2 x 3/7 = 6/7 4. 1/2 x 7/8 = 7/16 5. 1 3/8 2 1/2 = 3/7/16 6. 1/2 divided by 2/3 = 3/4 7. 8 1/4
asked by PLEASE HELP 
math
i need the answer to this mathamatical question (3x6)+12/28
asked by BEV 
maths
find the general solution of the following first order differential equation. t*(dy/dt) = (y/t) + ((exp(1/t)/t^3) could you show steps in working to solution.
asked by ricky 
math
a steamboat goes 24 miles upstream, the trip takes six hours. the water flows at three miles per hour. what is the speed of the boat in still water?
asked by iris 
Math algebra
how do you do this by using the FOIL method? 1. 3x^2 + 22x + 7= 2. 2x^2 + 5x  12= 3. x^2  11x + 28= thank you!
asked by Sara 
Psychology
It may be difficult to sooth a crying baby who needs to be fed and changed with Cuddling and toys. The strength of the physical needs in this situation support: a.secondary drive approach theory b.the incentive approach to motivation c.Maslow’s hierarch
asked by Sammi 
Psychology
The research of Solomon Asch revealed that: a.participants in the study conformed to the erroneous group response in onehalf of the trails. b.all participants in the study conformed to the erroneous group response in each trail. c.participants in the
asked by Sammi 
Math Algebra 1
X  Y 1  1 2  3 3  6 4  10 7  28 8  55 n  ? Find expression that works for all steps using the variable x!?
asked by Eden 
science
What become of the electric energy provided in electrolysis? In what device is this energy transformation reversed?
asked by Sheryl 
Math
An equalateral triangle has the length of it's sides given as (y+3)cm, (2yx)cm and (4x +3)cm.Find (a) the value of x and y (b)perimeter of the triangle (c) altitude of the triangle to the nearest whole number
asked by Joseph 
calculus
Find all values of a such that y=a/(x−9) and y=x^2−18x+81 intersect at right angles? please how the steps :)
asked by mehak 
physics
An opentopped tank completely filled with water has a release valve near its bottom. The valve is 1.63 m below the water surface. Water is released from the valve to power a turbine, which generates electricity. The area of the top of the tank, AT, is a =
asked by maria 
physics
Add the following vectors 1.50m{North 45 degrees West}, 10m{South30degreesEast}, 25Meters[South60mWest] pls help. explain to me how to solve it
asked by ted 
ART
I need some help determining the elements and principles of an art piece called "Polly, Minou and Eon" by Will Barnet
asked by Mandy 
maths
please help find the general solution of the following first order differential equation. dx/dt = tx + 6t(exp)t^2 pls show working
asked by micheal 
MATH 101
How do you solve system of equation problem. example x+3y=32 3x+2y+3 and x+y=6 xy=9
asked by Ann 
MAth grade 8
y^24y+4/26y x 2y+4/3y^212
asked by Aldwin 
Math
If you reduce 5 _ 10 what fraction is it reduced to?
asked by Himey 
chemistry
upper atmosphere chloromethane can be decomposed by light according to the reaction:CH3Cl > CH3(g) + Cl(g)The energy required for this reaction is 428 kJ mol–1. If each molecule of chloromethane is decomposed by one photon, what is the maximum
asked by el 
physics
an 85 mass has an acceleration of 5.5 m/s2 what is the net force applied
asked by Anonymous 
just a question
Geraldo works fulltime to take care of his family. His wife, Marina, stays home to take care of their two young children. What kind of insurance coverage should Geraldo and Marina have for their family? Explain why.
asked by Bee 
Biology
In guinea pigs, gene B is for black, b is for white the heterozygote is a mixture, called agouti. ( sex linked and non dominant) , a litter consists of 5 agouti females and 6 black males , if the parents of this litter had more offspring , what other
asked by Melissa 
science
differentiate between helpful and harmful bacteria
asked by abdulla 
math
john and mary are working on a job together. if john does it alone, it will take him seven days, while mary can do it alone in five days. how long will it take them to do it together?
asked by iris 
MAth
Solve 2/wz^2+9/W^2z Help
asked by KATIE A 
Math
9+5/9=6 How do I solve?
asked by KATIE A 
MATH
Find LCM t^3+8t^2+16,t^28t
asked by KATIE A 
physics
A parachutist with a camera, both descending at a speed of 13 m/s, releases the camera at an altitude of 57.8 m. What is the magitude of the velocity of the camera just before it hits the ground? The acceleration of gravity is 9.8 m/s 2 and air friction is
asked by asdfghjkl; 
Bio 110
Jane is 28 yrs old dx with MS. Explain to her 10yrs old, what MS is, why, how, and when did it happen?
asked by Susan Yi 
Bio 110
Jane is 28 yrs old dx with MS. Explain to her 10yrs old, what MS is, why, how, and when did it happen?
asked by Susan Yi 
philosophy
In the conditional "P ¨ Q," "Q is a sufficient condition for Q. sufficient condition for P. necessary condition for P. X necessary condition for Q.
asked by bean 
geometry
A rectangular playing field is 3 times as long as it is wide. its area is 2500 metres squared. find the cost of fencing in the field if the fencing costs €15 per metre
asked by Anonymous 
physics
What is the acceleration for the turtle moving with constant velocity of 5m/s to tghe right
asked by Dia 
Health
Is Hepatitis A caused by bacteria? I don't think so.. Thanks MC
asked by mysterychicken 
physics
A 1.2 kg ball is rolling down a friction free ramp at 21 m/s just before it hits level ground. How high was the ball when it started rolling?
asked by Lisa 
English
I mispelt a word in my previous post. Thank you. 1) This can be a drawback not so much to the wearer but as to those around him. 2) Who is a "mill master"? 3) During the day of Peterloo, which alludes to the Battle of Waterloo, a man had his nose cut from
asked by Henry2 
math
pls. factor x^2+2+(1/x^2)
asked by justme 
Statistics
I am not sure if I can compare the measurments fro the above study with the standard normal distribution. I feel like I do not have enough data. Am I right or is it the standard normal distribution ? Medication at the end of life During the last month of
asked by AAS13 
physics
Note: Coal and oil are nonrenewable re sources. A friend says the energy of oil and coal is actually a form of solar energy. Is your friend correct, or mistaken? 1.Mistaken; the energy is actually nuclear. 2. Correct; these materials are the result of
asked by lynn 
Algebra
If 250 specialty coffee drinks were sold at the bake sale, what would the average cost per drink be given the equation .25x+250/x?
asked by Kelly 
organic chemistry
what would be the result if we heated a mixture of dicholoromethane and naphalene to 60 degrees celcius, collected distillate until no further material is distilled, and then cooled the flask back to room temperature?
asked by Ashley 
Math
Please help me with this problem 3(square root of 144 6)
asked by Lisa 
English
Could you please check these sentences? Thank you. 1) If I'm not wrong (mistaken?), the deadline for a Comenius partnership is 2nd February. 2) When do you think of holding our first meeting to agree on a common theme (for our Comenius project? 3) The
asked by Henry2 
English
Can you suggest to me a site where I can listen to and read the American anthem? Thank you.
asked by Henry2 
Science
what is true about the number of moles of hydroxide ions and moles of hydrogen ions at the equivalence point? How can you find the moles of hydroxide ions at the equivalence point?
asked by Noorah 
chemistry
calculate the molarities of each of the ions in a solution prepared by diluting 78mL of 4.5M Ca(ClO3)2 (aq) to 156mL with water. I don't understand how to answer this question.
asked by amy 
Chemistry
give a formula you can use to calculate the number of moles of H+ ions used at the equivalence point.
asked by Emma 
organic chemistry
what would be the result if we heated a mixture of dicholoromethane and naphalene to 60 degrees celcius, collected distillate until no further material is distilled, and then cooled the flask back to room temperature?
asked by Ashley 
algebra
formula= P(x)=.1x^2+50x300 where x is number sold what is ans. if P(100)=.1(100)^2+50(50)300
asked by alfonso 
Ratios  measurements
I need to find the ratio of the longest side to the length of the shortest side, then write each fraction in lowest terms. Both questions have more than 3 measurements: 1) 25 km to 24.5 km to 5 km 2) 6 3/4 ft. to 5 3/4 ft. to 3 1/4 ft. to 1 3/4 ft to 1 1/2
asked by Alex L. 
algebra
using the letters in the word "MAGIC,", find the number of permutations that can be formed using 3 letters at a time A. 20 , B. 30 , C. 40, D. 60
asked by tracy 
Calculus
What is the derivative of 3x((x+1)^1/2)
asked by Alexis 
MAT 7th GRADE
Please help. Will someone please check the answer to these problems. Thank you 1. 14 x3 = 42 2. 24 15 = 39 3. 48 divided by 12 = 4 4. 150 divied by 30 = 5 5. 3/4 + 5/12 = 1 1/6 6. 14 1/2 + 3 7/8 = 18 5/8
asked by PLEASE HELP 
English
I forgot to add the following things. Thank you very much. 1) Coco Chanel rose to become ( I need a synonym) one of the foremost designers in France. 2) She was probably the most influential female designer ever. (What is the meaning of "ever" here?) 3)
asked by Henry2 
Chem(PLEASE CAN SOMEONE EXPLAIN HOW I CAN SOLVE)
calculate the molarities of each of the ions in a solution prepared by diluting 78mL of 4.5M Ca(ClO3)2 (aq) to 156mL with water. I don't understand how to answer this question.
asked by amy 
math
A manager schedules employees to cover evening shifts. There are 9 shifts on Monday, 11 on Tuesday, 13 on Wednesday, 13 on Thursday, 15 on Friday, 16 on Saturday, and 12 on Sunday. If each employee can work an average of 4.5 shifts, how many employees
asked by taneisha 
English
I left out 2 doubts. Thank you. I wrote in a notebook OR on a notebook. I wrote on a fooscap sheet (is it possible?)
asked by Henry2 
PHYSICS HELP
what is the minimum amount of energy required to accelerate horizontally a 3.0g bullet from rest to a speed of 40.0 m/s?
asked by emilyy 
Math
Jen & Jakie are 33miles apart on a calm lake paddling toward each other. Jen paddles at 4miles per hours, while Jakie paddles at 7miles per hour. How long will it take them to meet?
asked by Kara 
ecology
what are the six steps of the very serious and common water pollution problem of artificial eutrophication
asked by danielle 
Social Studies
In what building does the President of the United States serve?
asked by Jason 
U.S. History
The student will describe the causes events and results of the French Indian war. The student will explain the economic relationship between the colonists and Britian. :( :( :( :( :( :( :( :( :( :( Can anyone help me? And, please don't tell me to go to
asked by John Jacob Jingle Heimer Smith 
Psychology
Teenage mothers who are accustomed to existing on hamburgers, French fries, and cokes need to consider the nutritional needs of the child. Research has shown that a poor diet can: a. restrict the development of eye and hair color. b. produce prenatal
asked by Sammi 
mathematics
find the general solution of the following first order differential equation. u(t): du/dt =(u/(t+2t)) pls show all working
asked by Zane 
U.S History
describe each battle, including its outcome: 1) Long Island 2) Trenton/Princeton thanks
asked by Jackson 
human services
how success wisconsin human services in meeting the needs o its demographic group
asked by sylvia 
french
My homework task is to write an introductory email to my french exchange partener about:yourself, how you get on with your family, what your views on marriage are, a descrition of your best friend(s), what you did yesterday and what your plans for the
asked by Ellie 
physics
if a=Ω² times r with what is equal the Ω?
asked by Please Help 
maths (complex numbers)
if b is a real number satisfying b^4 + 1/(b^4) = 6, find the value of : (b + i/b)^16 where i = sqrt of 1
asked by ........... 
criminal law
the law will not punish an ______ act a. ignorant b. reckless c. involuntary d. premeditated i think its C
asked by john 
organic chemistry
what would be the result if we heated a mixture of dicholoromethane and naphalene to 60 degrees celcius, collected distillate until no further material is distilled, and then cooled the flask back to room temperature?
asked by Ashley 
operating a car
The sticker price on a new car includes: A.The final selling price of the vehicle. B.an extended warranty. C.everything you need to know about the vehicle. D.the retail price of everything that comes with that particular vehicle. i got D
asked by Ciara 
calculus
what is the vertical asymptote and horizontal asymptote of f(x) =1/4x^4(3/2)x^(1/2)
asked by joshua 
cj
what is the sum of 756 and 249?
asked by joshua 
maths
find the general solution of the following first order differential equation. dx/dt = t*x + 6*t(exp)t^2 pls show working
asked by micheal 
physics
My question is what would be the constant in a basketball ofensive rebound experiment? My science q is do the amount of offensive rebounds decide whether or not a basketball will win or loose the game? can you help/
asked by Autumn 
math
If a quarter circle is placed on a square target and the radius of the quarter circle is the same as the length of a side of the square, what is the probability that a dart that hits the square does not hit the quarter circle
asked by Nikki 
French
Hi Sra, Concerning the French text I don't know how to rewrite the text with all the corrections and English I want to say without it being confusing, could you please suggest a way?
asked by Ruth 
mat
The functions f and g for x lesser or equal 4, but x greater or equal 6. and g(x)=f(x), what could be the value if f(3)?
asked by reena 
logical approach towards math
Use only 4'4's and only 4'4' along with any mathematical operators to make a total of 2348.
asked by mathmania 
algebra
twenty times the cost of a record, increased by eightynine cents
asked by amanda 
math
there were 19 hamburgurgers fo nine people on a picnic. how many whole hamburgers were there for each person if they were divided equally?
asked by iris 
science
Find the mass of 30 mol of sulfuric acid, H2SO4
asked by Sheryl 
Psychology
disadvantage of group intelligence tests include that a. all test taker must wait until all registered individuals arrive b. proctors are often inconsistent and allow some test takers a longer time to respond or to take testing breaks c. some test taker
asked by Sammi 
Language
I have one more question. I think the author of this book made a mistake on the next analogy. Take a look and see if you agree. Platyhelminthes:platypus a)plateau:platitude b)worm:marsupial c)mammal:science d)crystalline:canine I think the author
asked by Carson 
math
peter took a 1,500 mile trip in 5 days. each day, he drove 30 miles more than the day before. how many miles did he cover on the first day?
asked by iris 
organic chemistry
what would be the result if we heated a mixture of dicholoromethane and naphalene to 60 degrees celcius, collected distillate until no further material is distilled, and then cooled the flask back to room temperature?
asked by Ashley 
nursing
bioterrorism and how might you prepare for its effects?
asked by maria 
real estate law
A tenancy at ______ may be terminated at any time by either party. a. leisure b. option c. necessity d. will is it A
asked by Julie 
English check my answer
Complete the following sentence with the best possible answer. 1. Abraham Lincoln warned us that "America will never be destroyed from the outside. If we falter and lose our freedoms, it a. will be because we destroyed ourselves." b. be because we
asked by Anonymous 
math
what would one half of a piece of fruit represent
asked by Anonymous 
math
If you walk 6.2 miles in 2 hours what is your average speed in meters per minutes? I just want to make sure that I am setting this up right... thank you.
asked by karen 
Physical Science
What becomes of the electric energy provided in electrolysis? In what device is this energy transformation reversed?
asked by chris 
curriculum development project
Im still waiting on some help with the 10 domains and the activity plans in a thematic web
asked by Maryann 
math
If line l in the xy plane contains the point (2,1),(4,5) and (5,t), what is the value of t?
asked by reena 
math
set S contains all integers from 100 to 200. if x is a number in S that is multiple of both 6 and 10, what is one possible value of x?
asked by reena 
real estate law
Attorneys are required by state law to be: a. at least 26 years of age b. licensed c. living within 100 miles of the courthouse d. sworn to secrecy is it B
asked by Nile 
social studies jumble
what is levaygloerf unscrambled?
asked by cesar Ibarra 
HW CHECK
What is the verb in the following sentence? (only one answer) 1. Many people believe that the economy is not the worst problem in America. a. Many b. believe c. is d. is not e. in What is the subject in the following sentence? (may be one or more) 2. Her
asked by Anonymous 
Math
How high will a baseball that is thrown up into the air at 48 feet per second go if it starts its flight at a height 10 feet above the ground?
asked by Bob 
organic chemistry
How do I go from Ctriple bondC and end up with [(Z)6 methylhept2enyl] benzene. I think the first step is adding NaNH3, but after that I'm lost.
asked by redgy 
algebra II
why is it that (5,8) cannot be an xintercept?
asked by verlita 
Biology
My teacher asked me this question and I do not know the answer would you be able to tell me and why thank you large bodies loose a smaller percentage of heat to their surroundings than smaller bodies. Why?
asked by Ellie 
Law
if ______ on the internet are not adequately phrased the researcher can pull up thousands of sites that are unrelated to the topic at hand a. responses b. queries c. classifications d. codes i think its B is that right?
asked by Sammi 
4th grade math
What is an expanded algorithm? Son doesn't know and didn't bring home his textbook, any ideas?
asked by Sandy 
math
how to factor xd +(xd)^2?
asked by justme 
organic chemistry
what would be the result if we heated a mixture of dicholoromethane and naphalene to 60 degrees celcius, collected distillate until no further material is distilled, and then cooled the flask back to room temperature?
asked by Ashley 
social studies
Philip 2 of Spain called the Englishmen who attacked and raided his ships _______ ______.
asked by stephanie 
spanish
How do you respond to necesitas la tienda y el saco de dormir in spanish
asked by Mia 
english
Im writing a argument essay about PETA and I cant seem to come up with a thesis…..I need help plz.
asked by v 
chemistry
is this correct? making sure I did this right CH3CH2CH2CH2Br ans: 1bromobutane
asked by dominique 
maths
find the general solution of the following first order differential equation. u(t): du/dt = u /t+2t pls show all working
asked by Zane 
math
what is the perimeter of triangle 8746
asked by jackie 
Chemistry
If you need any extra information please ask How could someone have calculated the dilution of the HCL from 20.0 cm^3 to 250 cm^3?
asked by ? 
SS
What are the 3 most visited "natural attractions" in the U.S.?
asked by Justin 
math
Bill buys x items at $3 each, y items at $5 each, and z items at 6 each. If x,y,and z are each multiple of 5 and the total price of the items costing $3 and $5 is 55, which of the following could be the total price of all x +y+z items? a. 66 b. 80 c. 95 d.
asked by reena 
Mathematics
find the general solution of the following first order differential equation. dx/d(theta)=(xtan(theta))(cos(theta)) show working
asked by markus 
biology
Name the 4 factors that control the amount and rate of gas exchange.
asked by Kim K 
trig
Find another angle theta between 0 and 2pi that has the same cosine as 3pi/14
asked by Anonymous 
English
Could you please check this sentence I need to include in a letter? 1) Thank you very much for your last email. Unfortunately, I couldn't read the document attached to it. 2) Actually, it was blank. Can you post (send) it to me again (once more, another
asked by Henry2 
biology
Jim has been stung by 35 bees and is going into anaphylactic shock. How is this happening; why is it happening; what can I do to help?
asked by Kim ki 
math
i posted this yesterday and never received a answer i do really neeed this help need step by step on how you get the answer Aging in the United States In 2050, about of the population will be aged 65 or over and about 1 over 20 of the population will be
asked by tony 
English
Thank you. I have a few doubts on a summary I made. 1)A set of apparel items is the same as a set of clothing items? 2) She caused something of a scandal by (for is wrong?) having love affairs with wealthy men. 3) Versace used to give only an ambiguous
asked by Henry2 
english
Which fits better in these sentences and why? Who/Whom painted that big mural in the post office. Do you know who/whom the secretary of state is?
asked by jamie 
biology
Jane is 28 yrs old dx with MS. Explain to her 10yrs old, what MS is, why, how, and when did it happen?
asked by sara may 
socialstudies
2.) "Without our two great political parties cutting across economic and geographic interests, democracy as we know it could never have been made to function." The author of this statement probably meant to suggest that
asked by Anonymous 
English essay, could I have someone proofread it?
The title states it. Please be gentle. The day started off pretty normal, well, before I was out rocking out to music, besides the fact that we had all stayed in a house with nothing but an old Dean ‘’Z’’ guitar and an Xbox 360 system. We went to
asked by Allyson 
Problem Solving Math
If a circuit has a 3.9k resistor and a 5F capacitor, find the current flow in the circuit at 0.005 seconds, if the maximum current flow in the circuit is 1.5mA.
asked by Clayton 
biology 110
name 4 functions of the nose.
asked by mike chi 
buissness math
Determine the amount of interest charged on S. Carter's account during the second month. S. Carter's account Principal: $1,604 Rate: 10% compound Length of period: month Second month's interest: _________ $13.48 $160.40 $16.04
asked by morgan 
English
Could you please check these few sentences for me, please? Thanks 1) He is ambitious and thirsty for power. He turns into a murderous tyrant as a result of his ambition. 2) A vote was taken (do you know a synonym) in the late afternoon. On July 4 (on July
asked by Henry2 
business
should companies involve their marketing channels in the desighnof their promotional programs? what ar the advantages and disadvantages of doing so?
asked by nissa 
math
Which of the following can be the average(arithmetic mean ) of four consecutive positive even integers? a. 2 b.3 c. 4 d. 5 e. 6
asked by reena 
Biology
Suppose that a clolur blind man has parents with normal vision. Would all his sons be colourblind ? Was his mother a carrier ? would all his daughters be carriers
asked by Melissa 
Chemistry
if you have 100mL of 0.1M acetic acid (ka = 1.8x10(5)what is the pH after 10mL NaOH is added? I came up with an answer of 2.895, but i'm not sure if its right.
asked by Kevin 
Biology
In man, muscular dustrophy , is inherited as a sex linked recessive , a couple , both of whom are normal, have five children, three boys and two girls , the oldest boy is beginning to show symptoms of the disease, what could you tell them about the chances
asked by Melissa 
Statistics
One sample of n=20 scores has a mean of M=50. A second sample of n=5 scores has a mean of Mean=10. If the two samples are combined, what is the mean
asked by Sher 
physics
a cube of gold 30mm long on each edge is worth $10,000.how much is a gram of gold worth?
asked by nanag 
Biology 110
Jim has been stung by 35 bees and is going into anaphylactic shock. How is this happening; why is it happening; what can I do to help?
asked by Susan Yi 
english
I need help with topic sentence on a book character. the book is chrysalids and my charcter is David strorm. im not sure how to write a topic sentence any examples?
asked by jill 
Rates
Which deal is the better buy? "Dazzle for clean clothes! Just $5.99 for 64 fluid ounces" Or "SpotBeGone for your laundry: 150 fl oz. for $7.29"?
asked by Alex L. 
English
Can someone edit this essay? High school is a menacing, overbearing world that hardly gives the average student to even stop and think. With the threat of a possible test or project coming up, combined with constant homework, it's easy to forget you're
asked by Mathew 
Natural science
What might happen to earth if the temperature in the atmosphere rises by 5degrees and if the water in the ocean gets colder?
asked by Amanda 
math
I am a 3 digit #. All 3 digits are the same . I could not be any greater . What # am I ?
asked by Ridgecrest 
physics
pls explain to me how you add 65km{North 85 degreesWest], 3500m[South 10 West}, 6000m{East 70 degrees South], 54km[North 60 degrees East]. pls explain to me how i should add these vectors. I really need help. pls help
asked by ted 
MAthe
Simplify by removing Factor of 1 3v9/3v
asked by KATIE A 
Math
What is square root for 25/4+1/2 Please help me
asked by Sadie 
MATH
Divide and Simplify y^216/y divide y4/y+1
asked by KATIE A 
Science
Put slice of "potato" in four diff bowls. Add diff "solutions" to each bowl. Which is Dependent Variable and which is Independent Variable?
asked by LW 
philosophy
P v Q" is best interpreted as P or Q but not both P and Q X P or Q or both P and Q Not both P or Q P if and only if Q
asked by bean