
Physics
A box of mass 4 kg is resting on a table 1.5 m above the floor. There is also a ledge located 5 m above the floor. Find the gravitational potential energy of the box relative to the floor, and the gravitational potential energy of the box relative to the
asked by Stu on November 20, 2012 
Stats
Suppose that 8% of a certain batch of calculators have a defective case, and that 11% have defective batteries. Also, 3% have both a defective case and defective batteries. A calculator is selected from the batch at random. Find the probability that the
asked by Tatjana on October 26, 2010 
Statistics
An electronic product contains 32 integrated circuits. The probability that any integrated circuit is defective is 0.02, and the integrated circuits are independent. The product operates only if there are no defective integrated circuits. What is the
asked by Ashley on February 20, 2014 
Math
Two chemicals,A and B are combined in the ratio 5:11 by volume to form another solution X. A second solution Y is formed by combining chemicals, A,B and C in the ratio 2:3:15 by volume. Find the volume of chemical A in 400 litres of solution X and
asked by Didin on November 15, 2016 
math
Video rental Store A charges a membership fee of $25 and $2 for each movie rental. Video rental store b charges a membership fee of $10 and $2.50 for each movie. Find the number of movies rentals for which both stores' charges are the same
asked by Amy on October 11, 2012 
Stats
Suppose that 8% of a certain batch of calculators have a defective case, and that 11% have defective batteries. Also, 3% have both a defective case and defective batteries. A calculator is selected from the batch at random. Find the probability that the
asked by Tatjana on October 26, 2010 
algebra 2
PLEASE HELP wiTH ALL OF THEse. I DON'T KNOW WHERE TO STARTTHANKS! 1. At 2pm the number of bacteria in a colony was 100, by 4pm it was 4000. Write an exponential function to model the population y of bacteria x hours after 2pm. 2.Using the information in
asked by cal on February 24, 2008 
English
I forgot to include the following sentences which are part of the same summary. I really hope you can find time to check them, too.Thank you a lot. 7) The boxes of food had not been damaged by the water. He found many things, including biscuits and rum,
asked by Franco on March 21, 2010 
Math/Algebra
In a certain game, each of 5 players received a score between 0 and 100, inclusive. If their average (arithmetic mean) score was 80, what is the greatest possible number of the 5 players who could have received a score of 50? Explain. (A)None (B)One (C)Two
asked by Giselle on July 23, 2007 
Physics Classical Mechanics
A hydrometer is a device that measures the density of a liquid. The one shown in the figure has a cylindrical bulb of radius R attached to a cylindrical stem of radius r and length l. When placed in a liquid, the device floats as shown in the figure with a
asked by Anonymous on December 11, 2013 
Physics
Standard Temperature and Pressure (STP) is defined as a temperature of 0.00oC and a pressure of 100kPa. If the molar mass M of nitrogen is 14.0 g/mol, find the density (kg/m3) of nitrogen gas (N2) at STP. Nitrous Oxide or laughing gas is composed of the
asked by Francis on April 24, 2017 
Chemistry
Container A holds 752 mL of ideal gas at 2.40 atm. Container B holds 179 mL of ideal gas at 4.80 atm. If the gases are allowed to mix together, what is the resulting pressure? Note: Find the partial pressure of each gas in the total volume using a formula
asked by Garcia on October 28, 2012 
classical mechanics
A hydrometer is a device that measures the density of a liquid. The one shown in the figure has a cylindrical bulb of radius attached to a cylindrical stem of radius and length . When placed in a liquid, the device floats as shown in the figure with a
asked by socorro on December 10, 2013 
physics
A car is traveling along a straight road at a velocity of +32.7 m/s when its engine cuts out. For the next 1.04 seconds, the car slows down, and its average acceleration is . For the next 5.23 seconds, the car slows down further, and its average
asked by gary on September 18, 2012 
physics
A car is traveling along a straight road at a velocity of +27.7 m/s when its engine cuts out. For the next 1.94 seconds, the car slows down, and its average acceleration is . For the next 4.92 seconds, the car slows down further, and its average
asked by S on September 9, 2014 
Phsics
A car is traveling along a straight road at a velocity of +38.8 m/s when its engine cuts out. For the next 2.01 seconds, the car slows down, and its average acceleration is . For the next 6.36 seconds, the car slows down further, and its average
asked by Courtney on December 16, 2015 
ap stats probability
over a 5 year period of time, 80% of winter days in Philadelphia had an average temperature above freezing. 20% of those days had precipitation. Of the days with an average temperature below freezing, 15% had precipitation. A winter day is chosen at
asked by zack on October 24, 2012 
Algebra 2
The width of a rectangular box is twice the height. Twice the length of the box exceeds the sum of the width and the height by 5in. Given that the sum of the length, width, and height is 16in, find the length, width, and height. I got, w=2h 2L=w+h+5
asked by Coly on November 17, 2015 
math
mike claims that the probability of winning a pick 6 number game where six numbers are drawn from the set 1 through 49 is about the same as getting 24 heads in a row when you flip a fair coin 1. find the probability of winning the pick 6 game and the
asked by Sara! on May 17, 2010 
Math
When Sarah takes the bus to work, the trip takes 30 minutes. When she takes the train to work, the trip takes 20 minutes. The average speed to the train is 15 mph faster than the speed of the bus. Find the distance to work.
asked by Kevin on May 9, 2013 
trigonometry
5. Find the complete exact solution of sin x = √3/2. 9. Solve cos 2x – 3sin x cos 2x = 0 for the principal value(s) to two decimal places. 21. Solve tan^2x + tan x – 1 = 0 for the principal value(s) to two decimal places. 22. Prove that tan^2a –
asked by eemily on December 13, 2012 
Trig
Given: cos u = 3/5; 0 < u < pi/2 cos v = 5/13; 3pi/2 < v < 2pi Find: sin (v + u) cos (v  u) tan (v + u) First compute or list the cosine and sine of both u and v. Then use the combination rules sin (v + u) = sin u cos v + cos v sin u. cos (v  u) = cos u
asked by Nan on December 29, 2006 
Math
When Sarah takes the bus to work, the trip takes 30 minutes. When she takes the train to work, the trip takes 20 minutes. The average speed to the train is 15 mph faster than the speed of the bus. Find the distance to work.
asked by Kevin on May 9, 2013 
Trigonometry
I need help: If vector u has a magnitude of 4 meters and a direction of 17 degrees and vector v has a magnitude of 6 meters and a direction of 133 degrees. Find the magnitude of the resultant vector of u + 3v.
asked by G0al on April 30, 2013 
Maths
Before 5 years a man was 3 years times his boy but after 10 years the father's age will be 6 more than 2 times his boy. Find the age of the father. And the age of the son.
asked by Buma on December 7, 2017 
Math
You read 50 pages in an hour. Your sister reads 40 pages in an hour. Explain how to find out how many more pages you read than your sister reads in 1212 hour?
asked by Iris on May 3, 2016 
math
The perimeter of an isosceles trapezium ( having nonparallel sides equal ) is 7.07 cm. If the parallel sides of the trapezium measure 37/20 cm and 58/25 cm, find the measure of the equal non parallel sides.
asked by Manoj on April 21, 2019 
prealgebra
The perimeter of an equilateral triangle is 7 inches more than the perimeter of a square,and the side of the triangle is 5 inches longer than the side of square.Find the side of the triangle.
asked by Nita on September 22, 2007 
math
Q1.Two dozen eggs and a loaf of bread cost K4.82.Half a dozen eggs and two loaves of bread cost K2.29.Find the cost of a loaf of bread.
asked by Athansia on March 17, 2015 
math:age
salima's current age is half that of her uncle.9 years ago the age of salima was 1/3 the current age of her uncle. Find the current age of Salima
asked by kelvin on July 23, 2016 
math
Two pairs of shoes and four pairs of socks cost $125, and three pairs of shoes and five pairs of socks cost $182. Find the cost of a pair of socks. $
asked by ash on March 13, 2014 
Math
12+4n/3 = 8 Not multiple choice.. trying to find n. My answer is 7 9a  3(a 6) = 6 Not multiple choice.. I'm not quite sure how to do this The width of a rectangle is 6 in. less than its length. The perimeter is 68 in. What is the width of the rectangle?
asked by Anonymous on September 17, 2014 
Math
The perimeter of an isosceles trapezium ( having nonparallel sides equal ) is 7.07 cm. If the parallel sides of the trapezium measure 37/20 cm and 58/25 cm, find the measure of the equal non parallel sides.
asked by Jack rider on April 10, 2018 
safety
i need to find information on the history of the automobile and how it has impacted the world (changed the world as well) economically and socially. thank you History of the automobile: http://en.wikipedia.org/wiki/History_of_the_automobile As far as the
asked by Amy on March 27, 2007 
MATH
Find the volumes of the solids generated by revolving the region in the first quadrant bounded by the following about the given axes. x = y  y3, x = 1, y = 1 (b) Revolved about the yaxis ? Hi Shawn, 97/105 * pi ? :) We need to cut away the volume of the
asked by Shawn on February 9, 2007 
Physics
After a completely inelastic collision two objects of the same mass and the same initial speed are found to move away together at 1/2 thier initial speed. Find the angle bewteen the initial velocitie of the objects? Can you please show me the step to solve
asked by Tammy on March 5, 2007 
physics
please help i cannot figure this out A 0.27 kg ball of dough is thrown straight up into the air with an initial velocity of 12 m/s. Find the momentum of the ball of dough halfway to its maximum height on the way up. and A 61 kg polevaulter falls from rest
asked by luke on March 21, 2011 
Physics
A steel washer is suspended inside an empty shipping crate from a light string attached to the top of the crate. The crate slides down a long ramp that is inclined at an angle of 40 ∘ above the horizontal. The crate has mass 162 kg . You are sitting
asked by Denny on February 9, 2016 
Statistics
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 50
asked by stan on June 25, 2010 
Statistics
Total plasma volume is important in determining the required plasma component in blood replacement theory for a person undergoing surgery. Plasma volume is influenced by the overall health and physical activity of an individual. Suppose that sample of 50
asked by stan on June 24, 2010 
Math
The following data set gives the difference between the winning and? losing scores in 50 randomly observed high school basketball games: 2, 12, 1, 2, 12, 5, 14, 2, 45, 9, 1, 8, 18, 28, 9, 4, 30, 16, 4, 12, 8, 13, 20, 9, 17, 13, 49, 17, 13, 4, 14, 2, 12,
asked by Anonymous on November 1, 2009 
Physics
A home run is hit such a way that the baseball just clears a wall 26 m high located 114 m from home plate. The ball is hit at an angle of 35â—¦ to the horizontal, and air resistance is negligible. Assume the ball is hit at a height of 2 m above the
asked by Sam on November 27, 2017 
Word Problem
The following data set gives the difference between the winning and? losing scores in 50 randomly observed high school basketball games: 2, 12, 1, 2, 12, 5, 14, 2, 45, 9, 1, 8, 18, 28, 9, 4, 30, 16, 4, 12, 8, 13, 20, 9, 17, 13, 49, 17, 13, 4, 14, 2, 12,
asked by Anonymous on October 27, 2009 
physics practical investigation
design and conduct an investion to find out whether the amount of heat(gas) produced will depend on an increase on the concentration of Hcl when Hcl reacts with an excess zn..guidance/hint...you may investigate either the amount of heat produced or the
asked by Jossie on March 25, 2013 
organic chemistry
How to find the volume of hot water required to dissolve the mass of acid, if we have 20g of benzoic acid contaminated with 0.4g of salicylic acid? What is the mass of benzoic acid which participates when the solution is cooled to 20°C? Deduce. What is
asked by Anonymous on October 21, 2015 
Urgent math
please help The fox population in a certain region has a relative growth rate of 7% per year. It is estimated that the population in 2005 was 19,000. (a) Find a function n(t) = n0ert that models the population t years after 2005. n(t) = (b) Use the
asked by Lydia on August 3, 2015 
Phoenix
In planning for a new item, a manufacturer assumes that the number of items produced x and the cost in dollars C of producing these items are related by a linear equation. Projections are that 100 items will cost $10,000 to produce and that 300 items will
asked by Sarah on April 11, 2007 
Math
The quantity demanded each month of Russo Expresso Makers is 250 when the unit price is $136.oo. The quantity demanded each month is 1,2oo when the unit price is $98.00. The suppliers will market 700 espresso makers if the unit price is $58.00 or lower. At
asked by Emily on September 11, 2012 
Electromagnetism
A particle with a mass of 6.64x10^27 kg and a charge of +3.2x10^19 C is accelerated from rest through a potential difference of 2.45x10^6 V. the particle then enters a uniform magnetic field of strength 1.60 T. a) Find the particle's gain in KE as it
asked by Anonymous on April 18, 2013 
Calc Jacobian
Thanks "I know that the xy region is the line x=y y=0 and y=1 x/2)" It is helpful to rewrite the region in the xy plane by specifying the three lines and the endpoints, i.e. the points where they intersect. If you insert these points in the formula for U
asked by Rob on December 4, 2006 
Math
Water is leaking out of an inverted conical tank at a rate of 0.0109 {\rm m}^3{\rm /min}. At the same time water is being pumped into the tank at a constant rate. The tank has height 9 meters and the diameter at the top is 4.5 meters. If the water level is
asked by Elizabeth on October 5, 2014 
Math
The triangle inequality theorem states that the sum of the lengths of any two sides of a triangle is greater than the length of the third side. The lengths of two sides of a triangle are 15 ft and 27 ft. Find the possible lengths of the third side. The
asked by John on March 6, 2018 
Physics
Three uniform meter sticks, each of mass M, are placed on the floor as follows: stick 1 lies along the y axis from y = 1.3 to y = 2.3 m, stick 2 lies along the x axis from x = 0.0 to x = 1 m, stick 3 lies along the x axis from x = 1.0 m to x = 2.0 m. Find
asked by Robert on April 25, 2010 
Probability
A survey finds customers are charged incorrectly for 2 out of every 10 items. Suppose a customer purchases 13 items. Find the probability that the customer is charged incorrectly on at most 2 items.The probability that the customer is charged incorrectly
asked by Eva on May 30, 2019 
math
4. If you made half of the recipe, how much of each ingredient will you use? Make sure you use fractions in your calculations, as well as label your answer. 4a. What operation would you use to find half of the recipe? * a) divide by 2 b) multiply by 2 c)
asked by lilpump on October 23, 2018 
science
I'm instructed to wrtie a full lab raport for a lab I did a couple of months ago. My aim was to find the most efficient concentration of fertilizer to grow red lentils. I planned to do this by taking the average of the number of lentils sprouted each day
asked by Anonymous on March 8, 2014 
Statistics
In the third week of July, a random sample of 61 farming regions gave a sample mean of = $6.88 per 100 pounds of watermelon. Assume that is known to be $1.72 per 100 pounds. A farm brings 30 tons of watermelon to market. Find a 98% confidence interval for
asked by Desperate on July 7, 2012 
mechanics
A wad of sticky clay of massmand velocity vi is fired at a solid cylinder of massM and radius R. The cylinder is initially at rest and is mounted on a fixed horizontal axle that runs through the center of mass. The line of motion of the projectile is
asked by sana on December 9, 2010 
Solving for x
((2X14Cos45)/(49+X^214XCos45))+0.3536 = 0 Solve to find the value of X Change cos 45 to sqrt 2 and rewrite the equation in the form a x^2 + bx + c = 0 Start out by rewriting it as 2x  9.8995 = (0.3536)(49 + x^2  9.8995 x) Conimue until you get the
asked by Sarah on June 15, 2005 
stats
An analysis is done to determine the amount spent on fresh fruits and vegetables per person per week. In a certain area, assume this amount is normally distributed with a mean of $13.9 and a standard deviation of $ 4.91. A. When finding the probability
asked by ff on October 10, 2010 
Physics
Tsunamis are fastmoving waves often generated by underwater earthquakes. In the deep ocean their amplitude is barely noticable, but upon reaching shore, they can rise up to the astonishing height of a sixstory building. One tsunami, generated off the
asked by Jena on December 5, 2006 
algebra 2
can someone please explain synthetic division to me? It's just a specialized way to divide a polynomial by a linear factor using long division. I don't see the reason why anyone would want to learn this technique, because it's just long division. If you
asked by bailey on January 17, 2007 
American History
I was given a cartoon but I cannot find it online to show you. Its a picture of the white house with a tape recorder on top. Its related to the Watergate Scandal. It asks how has the White House been modified in the picture, and what does that modification
asked by Cherrybombx0 on September 3, 2014 
Social Studies
What effect did the oil industry have on the overall economy in Texas? A. More oil rig workers gained employment B. Fewer workers were hired C. Oil related sectors of the economy grew D. The boom and bust cycle ended 2. After the strikes at Spindletop
asked by Help please ? :)) on January 30, 2018 
Early Childhood Education
Karen asked, "Where does rain come from?" The best response for her teacher is: A. "The clouds." B. "I don't really know, Karen." C. "How could we find out where rain comes from?" D. "That's really hard to understand, Karen." I think it's c Mrs. Bates
asked by Hayley on December 11, 2013 
Physics
A black mamba snake has a length of 4.3 m and a top speed of 8.9 m/s! Suppose a mongoose and a black mamba find themselves nose to nose. In an effort to escape, the snake accelerates at 20 m/s2 from rest. (a) How much time does it take for the snake to
asked by Alyssa on August 29, 2015 
Physics
When light of a certain wavelength is incident normally on a certain diffraction grating the line of order 1 is at a diffraction angle of 25 degrees. The diffraction angle of the second order line is : a) 25 b) 42 c) 50 d) 58 e) 75 I am not sure how to do
asked by Susan on May 8, 2007 
Basic CalculusOptimization Problems
Hello, please help me. There is a question where I have to optimize the area of a field that is being fence in like this: [] i.e. two rectangle fields, side by side: area= 2x by y. I get to use 200ft of fencing. From that diagram and the amount of fencing
asked by mary on March 16, 2012 
geography
Can you check my answers please? 1. What continents touch the 60 degrees W line of longitude? North America and South America, Antarctica 2. What do green areas on physical maps usually mean? It usually means land or lowlying land areas. 3. What is the
asked by Reed on December 3, 2012 
pre algebra
write an equation for the line through the given points or through the given point with the given slope (5,7),(6,8) (1,2),(3,8) (0,5),(3,2) (8,11),(6,16) For each of them, use the standard formula (y y1) = [(y2y1)/x2x1)]*(xx1) In the first case, that
asked by Anonymous on March 15, 2007 
PHYICS HELP
While a person is walking, his arms swing through approximately a 45° angle in .530s. As a reasonable approximation, we can assume that the arm moves with constant speed during each swing. A typical arm is 70.0 cm long, measured from the shoulder joint.
asked by BoB on February 15, 2012 
Physics
A student bikes to school by traveling first d_N = 1.10 miles north, then d_W = 0.500 miles west, and finally d_S = 0.200 miles south. You will now find the same quantity algebraically, without the need to use much geometry. Take the north direction as the
asked by Lacey on September 23, 2010 
physics/ math
A student bikes to school by traveling first d_N = 1.10 {miles} north, then d_W = 0.500{miles} west, and finally d_S = 0.200 {miles} south. You will now find the same quantity algebraically, without the need to use much geometry. Take the north direction
asked by Lacey on September 24, 2010 
Calculus
Hi, I have a calculus question that I just cannot figure out, it is about volume of cross sections. I would very much appreciate it if someone could figure out the answer and show me all the steps. A solid has as its base the region bounded by the curves y
asked by Michael on March 14, 2012 
math
a corner lot that was originally square lost 185m^2 area when one of the adjacent streets was widened by 3m and the other was widened by 5m. find the new dimensions of the lot.(hint:let x equal the length of a side of the original square lot) It might help
asked by john on November 29, 2006 
Calculus
Hi, I have a calculus question that I just cannot figure out, it is about volume of cross sections. I would very much appreciate it if someone could figure out the answer and show me all the steps. A solid has as its base the region bounded by the curves y
asked by Michael on March 14, 2012 
Physics
A cube is located with one corner at the origin of an x, y, z, coordinate system. One of the cube's faces lies in the x, y plane, another in the y, z plane, and another in the x, z plane. In other words, the cube is in the first octant of the coordinate
asked by Mary on September 24, 2007 
physics
A student stands on a bathroom scale in an elevator at rest on the 64th floor of a building. The scale reads 840 N. As the elevator moves up, the scale reading increases to 943 N, then decreases back to 840 N. The acceleration of gravity is 9.8 m/s^2. Find
asked by luma on November 1, 2015 
Research Methodology
A hospital has treated of 500 patients suffering from a disease. Find whether the new treatment is superior to the conventional treatment: No. of patients Favourable Not favorable New 280 60 Conventional 120 40 Use chisquare test. (Note: Table value at 5%
asked by Vijay on April 22, 2013 
Math
A manufacturer claims that the mean amount of juice in its 16 ounce bottles is 16.2 ounces. A consumer advocacy group wants to determine whether the mean amount is actually less than this. The mean volume of juice for a random sample of 70 bottles was
asked by Kyle on November 11, 2017 
Astronomy
Darwin proposed that the Moon formed far closer to Earth than it is now. Let’s see just how close it could possibly be to Earth and survive. In particular, in the next 4 problems you will find the distance from Earth at which the tidal force due to Earth
asked by sam on December 23, 2012 
English
1. Listen to the dialogue carefully, and say any advice which you can give about Tom's wory. 2. With your partner, find suitable expressions from Box A and Box B and make a sentence as in the example. After that say the sentence to your partner. 3. With
asked by John on August 31, 2009 
Modern World Studies
This is what I am to write about: As industry spread, the British government initiated reforms to improve workers' lives. What motivated reforms in Britain? What kinds of reforms were enacted in Britain? Respond in two or more wellorganized paragraphs. Be
asked by Victoria on October 6, 2015 
algebra
The weight of an object follows the equation w=Cr^2, where C is the constant and r is the distance the object is from the center of the earth. a. solve the equation for r. b. Suppose the object is 100 pounds when at sea level. Find the value of C that
asked by Carson on March 6, 2010 
physics
In the figure, a radar station detects an airplane approaching directly from the east. At first observation, the airplane is at distance d1 = 350 m from the station and at angle θ1 = 31° above the horizon. The airplane is tracked through an angular
asked by collins on October 11, 2015 
physic
A block with mass m1 hangs from a rope that is extended over an ideal pulley and attached to a second block with mass m2 that sits on a ledge. The second block is also connected to a third block with mass m3 by a second rope that hangs over a second ideal
asked by joy on February 7, 2018 
physics
When four people with a combined mass of 320 kg sit down in a car, they find that the car drops .80 cm lower on its springs. THen they get out of the car and bounce it up and down. What is the frequency of the car's vibration if its mass (empty) is 2.0 X
asked by sam on March 15, 2007 
Physics
Two horizontal forces act on a 2.4 kg chopping block that can slide over a frictionless kitchen counter, which lies in an xy plane. One force is F1 = (3.4 N) i + (3.7 N) j. Find the acceleration of the chopping block in unitvector notation for each of the
asked by COFFEE on February 3, 2007 
Chem
Calculate the amount of grams of carbon dioxide formed from 100 g of octane. The molar mass of octane is 114.33 g/mole. The molar mass of carbon dioxide is 44.0095 g/mole/ 2 C8H18 + 25 O2 > 16 CO2 + 18 H20 How do I go about doing this problem? How much
asked by Danya on November 20, 2012 
Physics HELP
How to find average speed with a given initial speed, theta, and delta x? I know average speed= total distance/total time, but I am given an initial speed, an angle and delta x. Mark throws a ball to Daniel with an initial speed of 20 m/s at an angle of 45
asked by Amm on December 1, 2010 
geometry
A room is 11ft by 21ft and it needs painted. The ceiling is 8ft above the floor. There are two windows in the room, each is 3ft by 4ft. The door is 2.5ft by 6.5ft. a)Find the area the walls and ceiling to be painted. b)One gallon of paint covers 72.63 sq
asked by face on July 30, 2012 
Math
A toy manufacturer is introducing two new dolls, My First Baby and My Real Baby. In one hour, the company can produce 8 First Babies or 20 Real Babies. Because of demand, the company produces at least twice as many First Babies as Real Babies. The company
asked by Caleb on November 1, 2008 
Algebra
John can paint a house in 10 hours. Adam can paint the same house in 15 hours. A. Write an equation that can be used to find the time in hours, t, it would take John and Adam to paint the house together.
asked by Lidia on March 27, 2017 
math
Paula always withdraws 20 dollars more than she needs from the bank. a. Write an expression for the amount of money Paula withdraws if she needs d dollars. b. Find the amount of money Paula withdraws if she needs 20, 60, and 75 dollars.
asked by rachel on August 18, 2015 
Algebra 2
You have 10 coins..3 quarters,5 dimes, and 2 nickels. a. A coin is selected and then replaced. A second coin is selected and then replaced. A third coin is selected and then replaced. Find the probability that all 3 coins were dimes.
asked by Norma on March 12, 2011 
Philosophy
Hello can someone help me? Philosophy is such a different language for me, I have been reading for hours and feel like I am from another planet... I am supposed to write a pursuasive letter to a european philosopher... Write a persuasive, formal letter to
asked by Anonymous on October 4, 2009 
physics
A steel ball of mass m=5 g is moving at a speed of 250 m/s toward a large mass M=2.2 kg which is connected to a relaxed spring, as shown below. When the ball reaches the large mass it collides and bounces off without losing any kinetic energy. The large
asked by joan on November 7, 2014 
Algebra  HELP!!!
Can someone help me and check these? 1. Graph the function and identify the domain and range. y = –.5x² (1 point)graph *domain: (–∞, ∞) range: [0, ∞) graph domain: (–∞, ∞) range: (–∞, 0] graph domain: (–∞, ∞) range: (–∞, 0]
asked by Sandy on April 22, 2014 
Word Problem Question
I would like to know if I am correct, so far. The amount P of pollution varies directly with the population N of people. City A has population of 494,400 and produces 260,000 tons of pollutants. Find how many tons of pollution we should expect City B to
asked by kai on December 16, 2011 
Math app
farmer Linton wants to find the best time to take her hogs to market. The current price is 88cents per pound, and her hogs weigh an average of 90 pounds. the hogs gain 5 pounds per week, and the market price for hogs is falling each week by 2 cents per
asked by anonymous on February 11, 2011
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