Questions Asked on
July 19, 2012

college math
The ratio of soda to diet soda in Bill's Supermarket is 8 to 9. If a person counted 72 bottles of soda, how many bottles of diet soda are there?
asked by Samantha 
math
Assume that the average annual salary for a worker in the United States is $32,000 and that the annual salaries for Americans are normally distributed with a standard deviation equal to $7,000. Find the following: (A) What percentage of Americans earn
asked by Rashonda 
Statisics
The state lottery claims that its grand prize is $1 million. The lucky winner will receive $50,000 upon presentation of the winning ticket plus $50,000 at the end of each year for the next 19 years. Why isn't this really a milliondollar prize? What would
asked by Val 
Chemistry
I had an equilibrium laboratory and had to answer a few questions after the lab. Here are 2 questions I can't seem to know how to answer. 1. Explain in your own words why a saturated solution in contact with some undissolved solid is considered to be an
asked by Robert 
math
wheels are 1.25 inches in diameter and the fastest speed is 3ft/second maximum distance to travel is 16 x (18cm)
asked by Pat 
SOCIAL STUDIES
Discuss the different developmental eras of American education.
asked by jAZZMANIA26 
Economics
Hi, would anyone please help me with this question for economics. It for an assignment due in several days, and it is very urgent, because I cant information about it, and our school teacher in absent until the day it is due. thank you Trade unions and
asked by Susan 
science
an electorn is 20 ccom away from a fixed point charge , q =0.250uc . if it starst to move from rest , then how fast will it be moving when it is a t distance ?
asked by mohit 
science
how much work is done in bringing three electrons , which are intially a great disance apart to how fats will it be moving then it is at distance ?
asked by mohit 
Economics
Analyse the reasons for their opposition to the new industrial relations laws The 'new' industrial relations such as Fair Work Australia
asked by Susan 
statistics
a survey from teeneage research unlimited found that 30% of teenage consumers receive their spending money from parttime jobs. If 5 teenagers are selected at random, find the probability that at least 3 of them have part time jobs
asked by Khloe B 
physics
what is the acceleration of the sled
asked by el john 
math
simplify the following giving your answer with a rational denominator, 2 root3  root 3/ 2 + root three.
asked by lindsay 
Geometry
At a certain time of the day, a 4metertall vertical pole casts a shadow of 3 meters. What is the angle of elevation, to the nearest degree, of the Sun?
asked by rebecca 
physics
What is optics?
asked by Saiman 
fundamental of electricity
{[(20+5)//10ohms]+5ohms}//10ohms
asked by faith 
math
(2x3y)(2y+3x)
asked by faith 
math
Solve the equation 3^2x  12 x 3^x + 27 = 0
asked by lindsay 
math
Solve the inequality 2x^2
asked by lindsay 
math
What ia A inverse if A = (3 2) (3 2)
asked by lindsay 
Statistics
A researcher claims that at least 10% of all football helmets have manufacturing flaws that could potentially cause injury to the wearer. A sample of 200 helmets revealed that 24 helmets contained such defects. a. Does this finding support the
asked by Josh 
statistics
3. Measurements on the percentage of enrichment of 12 fuel rods used in a nuclear reactor were reported as follows; 3.11 2.88 3.08 3.01 2.84 2.86 3.04 3.09 3.08 2.89 3.12 2.98 a. Test the Hypothesis H0: µ = 2.95 versus H1: µ 0 ≠ 2.95, and draw
asked by Mike 
MATHS
two sides of a rectangle are 20cm and 10cm. They are increased in the ratio 2:3 and 3:7. Find the percentage increased in its area?
asked by ASDFG 
Tech Math
A 490 newton woman stands on a bathroom scale while riding in a elevator that is accelerating downward at 2m/sec/sec. Find her apparent weight and her apparent mass. Compare to her starting mass.
asked by Jennifer 
Health
Write a 200 to 300word response to the following: What is longterm care? Provide an example. What is continuum of care services in the United States? Why is longterm care one of the greatest challenges facing the health care delivery system today?
asked by Marty 
economics
How does the expenditure approach calculate GDP? A. It adds up all the incomes in the economy. B. It adds up the value of four groups of final goods and services. C. It adds up the value of business goods and services. D. It adds up the value of consumer
asked by Wayne 
MATHS
Determine (8x)of power x if 9 to the power x+2=240+9 to the power x.
asked by ASDFG 
algebra2
What are the xintercepts for the graph of the quadratic function f(x)=1/4(x +2)^29
asked by jessica hernandez 
physics
A decorative piece consists of a 20cm long uniform brass rod weighing 4N and two ornaments, one weighing 6N and one weighing 10N, fixed to the ends. At what point should a supporting chain be attached so that the ornament balances?
asked by Ralph 
math
chandni purchased some parrots.20%flew away and 5% died.of the remaining 45% were sold.now 33 parrot remain.how many parrot Chandni purchased.
asked by ASDFG 
eng literature
i am given up by a topic to write discriptive essay topic is "joys of juvenile life" What to write in starting and in the ending of this essay.
asked by Rose 
english
please write a paragraph to show you comprehend what analogies and idoms are. use at least one analogy and one idom in the paragraph
asked by janice 
Trig
Verify the following identity: 1cosx/sinx=sinx/1+cosx
asked by Lynn 
Trig
verify the following identity: sin(x+y)*sin(xy)=sin^2xsin^2y
asked by Lynn 
Trig
verify the following identity: cos(AB)/cosAsinB=tanA+cotB
asked by Lynn 
Trig
verify the following identity: tanx+cotx/cscx=secx
asked by Lynn 
Trig
verify the following identity: 2sinxcos^3x+2sin^3cosx=sin(2x)
asked by Lynn 
Operations Management
A small grocery store sells fresh produce, which it obtains from a local farmer. During the strawberry season, demand for fresh strawberries can be reasonably approximated using normal distribution with a mean of 40 quarts per day and a standard deviation
asked by Clarissa 
math
graph 2yx=5
asked by Anonymous 
law
In the US it's presumed that every citizen?
asked by Anonymous 
literacy
To critically evaluate the qualifications of an author on a topic, carefully consider all of the following except the A. number and type of awards the author has received. B. author's age. C. other articles the author has written. D. author's educational
asked by aaron 
Psychology
What steps can I take to ensure that I remain an ethical and honest student?
asked by Cassie 
algebra
30% of 59
asked by Ana 
physics
If an engine produces a (mass flow rate) of 100kg/s of thrust, what is the force in Newtons?
asked by Joe 
ECONOMICS
1) If the price of a product produced in a competitive market increases, which of the following is most likely to occur in the labor market for workers who produce the product? A) the demand for labor and the number of workers hired both increase B) the
asked by Booker Perry 
government
what are some drawbacks to the current buearucratic system?
asked by melynda 
calculus derivatives
Please confirm: {(5x+2)^4/x^23x+1)^3}= 20(5x+2)^2(x^23x+1)^3 3x^2(5x+2)^4 (x^23x+1)^2/(x^23x+1)^6
asked by Laurie 
English
Can I first selfpublish my book first and then a month later I decide to publish it like normal authors do??? can I do that?
asked by Laruen 
reading
As defined by the British East India Company, a “presidency” was a A. company leader’s position. C. company base. B. trading agreement. D. coveted royal charter.
asked by scooper 
ECONOMICS
PLEASE HELP ME WITH THESE!!!!!!!! 1) If the price of a product produced in a competitive market increases, which of the following is most likely to occur in the labor market for workers who produce the product? A) the demand for labor and the number of
asked by Booker Perry 
Government
Which of the following is NOT a reason for holding congressional investigations? A) to focus public attention on an important issue B) to oversee the executive branch and its operations C) on executive order from the President D) to gather information i
asked by Stephanie 
Physics
The thermal conductivity of fiberglass batting, which is 8.9 in thick, is 8.6 106 BTU/(ft °F s). What is the R value (in ft2 °F h/BTU)? The R value is 24 ft^2 Fh/BTU. How do I get this answer?
asked by James 
English
1. Thomas ____ there but a minute when his girl friend arrived. (be) 2. Some kids ____ to tears with the ordinary textbooks when they entered high school. (bore) (What is the suitable forms of the verbs of the parentheses in the blanks/) 3. Robert
asked by rfvv 
math
How long will it take for an investment of $13,000 to double if the investment earns interest at the rate of 6%/year compounded continuously?
asked by twayne 
English
Do you know her? Is she the actress who always plays bizarre characters? Yes, that's her. Shall I introduce you? That would be fabulous. I'm going to ask for her autograph. (Would you check the dialogue? Are the sentences all grammatical? Would you
asked by rfvv 
PHYSICS !!
A car weighing 10,000 newtons is parked in a garage. Which statement is true about the forces acting on the car?
asked by jay_x 
Biology
Questions for Exam 1 for Concepts in Biology 12 edition
asked by Stephanie 
Physics
Suppose 100 g of water at 20°C is poured over a 70g cube of ice with a temperature of 8°C. If all the ice melts, what is the final temperature of the water? If all of the ice does not melt, how much ice remains when the water–ice mixture reaches
asked by James 
Civics
By the start of World War I, America had emerged as a global power. A large part of this power had to do with American expansion overseas. What territories did America acquire during the late 19th and early 20th centuries? What competing arguments exist
asked by ashley 
Physics
The Effect of Temperature on Gas Behavior Procedure 1. Chose any gas from the list box. Gas, Temperature (K), Most Probable Particle Speed (m/s), Average Particle Speed (m/s) 2. Set temperature to any value. Observe the shape of the frequency distribution
asked by Alfrieda 
Physics
What happens to the particle speed as the temperature is increased?
asked by Alfrieda 
Physics
How does the speed frequency distribution graph change for a given gas as the temperature is increased?
asked by Alfrieda 
Physics
At a given temperature, why does the most probable particle speed (vp) differ from the average particle speed (vavg)?
asked by Alfrieda 
Physics
Does the trend of the change in shape of the graph as temperature increases differ when a different gas is examined?
asked by Alfrieda 
PED212
Reflect on how your perceptions of physical education have changed based on your understanding of its evolution.
asked by Mary 
Physics
Exploration 2: the Effect of Mass on Gas Behavior Procedure 1. Set the temperature at 500 K. Maintain this temperature throughout this Exploration. 2. Select Hydrogen gas from the list box. Record the most probable particle speed and the average particle
asked by Alfrieda 
Physics
At a given temperature, what relationship appears to exist between a gas particle's mass and its speed?
asked by Alfrieda 
Physics
At a given temperature, what relationship appears to exist between a gas particle's mass and it speed? How does graph change as particle mass increase? Isra fills two identical balloons at identical temperatures. She fills one with O2 gas and the other
asked by Alfrieda 
Physics
Explain why a balloon expands when heated and contracts when cooled.
asked by Alfrieda 
math
sin è = 0.1736 O = ? H = 11
asked by Love 
Physics
Exploration 3: A Moving Source at Different Velocities Procedure 1. Set Wave speed to 10.0 cm/s and Source frequency to 1.0 Hz. Place the detector anywhere. 2. Set Source speed to 6.0 cm/s. Select Go. Sketch the resulting wavefront pattern on a separate
asked by Alfrieda 
English  Rachel Renee Russell Bio
Is there a full biography about Rachel Renee Russell on how she became a writer and her books.
asked by Laruen 
Calc
The U.S. population is approximated by the function P(t) = 556 1 + 3.72e−0.5t where P(t) is measured in millions of people and t is measured in 30year intervals, with t = 0 corresponding to 1930. What is the expected population of the United States in
asked by Liz 
Calculus
On the basis of data collected during an experiment, a biologist found that the growth of a fruit fly (Drisophila) with a limited food supply could be approximated by the exponential model below where t denotes the number of days since the beginning of the
asked by Jemima 
Calculus
Universal instruments found that the monthly demand for its new line of Galaxy Home Computers t months after placing the line on the market was given by D(t) = 2900 − 2300e−0.08t (t > 0) Graph this function and answer the following questions. (a) What
asked by Emma 
Calculus Voulme
find the volume of the solid generated by revolving the region r bounded by the graphs of the given equations about the yaxis. x^2+y^2=1 x=1 y=1
asked by Laurie 
Helping Sites 4 Math
I know this really isn't a type of question for subjects, but i was just thinking, are there any sites for teaching math? I finished summer school, and i just want to review stuff in case i forgot.
asked by Losa 
Physics
IMAGINE a building 6400km. high. On the ground floor, a person weighs 175lbs when he steps on a spring scale how much would the man weigh on the same scale if he were standing at the top floor? HINT: Note that 6400km is also the radius of the earth so
asked by lynn 
calculus
f(x)=[lnx]^5
asked by andrew 
Physics
Suppose you use a piece of fishing line to hang a large object from the ceiling. The line has a test strength of 125 lbs. Convert this to newtons, and determine the maximum mass that can be supported before the line breaks.
asked by lynn 
physics
suppose you took a 3m long piece of the fishing line discussed ( the line has a test strength of 125lbs) attached a 2.5 kg ball to the end, and spun it overhead. at what speed of the moving ball would the line break?
asked by lynn 
Volume
Find the volume of the solid generated by revolving the region bounded by the given curves and line about the yaxis. y=50x^2 y=x^2 x=0
asked by Jamie 
Mathematics
Maria answered all the problems on her math test. She answered 80 percent of the problems correctly. If she answered 6 problems incorrectly, how many problems were on the test?
asked by Willie 
chemistry
How do you calculate the theoretical cell voltage? 1) ZnZn^+2  CuCu^+2 2) CuCu^+2  ZnZn^+2 3) FeFe^+2  CuCu^+2 4) ZnZn^+2  CuCu^+2 5) CuCu^+2  CuCu^+2
asked by fenerbahce 
Chemistry
Titration of a 21.0mL solution of requires 11.0mL of 0.0350M solution. What is the molarity of the solution?
asked by Heather 
physics
A 46cmlong wire with a mass of 10.5 g is under a tension of 52.0 N. Both ends of the wire are held rigidly while it is plucked. (a) What is the speed of the waves on the wire?
asked by lanre 
Chemistry
A buffer system contains 0.25M NH4+ and 0.19M NH3. pka of NH4 is 9.25. How many moles of NaOH must be added to 1.00L of this solution to increase the pH to 9.25?
asked by June 
physics
The tension in a 2.8mlong, 1.2cmdiameter steel cable (ρ = 7800 kg/m3) is 825 N. What is the fundamental frequency of vibration of the cable?
asked by lanre 
physics
Suppose the slope of a beach underneath the ocean is 21 cm of dropoff for every 1.2 m of horizontal distance. A wave is moving inland, slowing down as it enters shallower water. What is its acceleration when it is 16 m from the shoreline? (Let the +x
asked by lanre 
chemistry .....please help
Which of the following statements does not apply to water? A. Like all liquids, water assumes the shape of its container. B. Water is a polar molecule. C. The strong surface tension of water allows it to adhere to the sides of a container and actually move
asked by lalt 
science human nutrition
Write a 750 to 1,050word paper that addresses the following points about the 3day food intake information you recorded in iProfile: • Recorded intake of protein, carbohydrates, and lipids o Which foods in your recorded daily intake provide protein?
asked by Anonymous 
math volume
a rectangular sheet of cardboard size 5' by 8' is to be used to make an open box by cutting out the four corners. What is the largest volume and be sure to explain how you found the MAXIMUM volume please and Thank You!
asked by andy 
phsycs
A person shouts in a canyon. 3 s later they hear the echo. How far away is the canyon wall from which the sound wave was reflected? how do i do this problem?
asked by Adam 
geometry

physics
A wave on a string has a wave function given by y(x, t) = (0.0210 m)sin[(6.91 m^−1)x + (2.38 s^−1)t . (a) What is the amplitude of the wave? (b) What is the period of the wave? (c) What is the wavelength of the wave? (d) What is the speed of the wave?
asked by lanre 
statistics
A telephone company representative estimates that 40% of its customers use voice mail. To test this hypothesis, she selected a sample of 100 customers and found that 37 used voice mail. At a standard deviation of 0.01, is there enough evidence to show the
asked by Kay 
phsyics
Bat is flying 5m/s while chasing an insect that is flying in the same direction. The bat emits 40kHz chirp and hears a 40.4kHz reflected sound wave. What is the speed of the insect? ??? lost
asked by Jake 
Psych
Research on how easily men are persuaded in relation to women shows that
asked by Anonymous 
math
The price of a shirt is reduced by 30% to $14. What was the original price of the shirt?
asked by Mitch 
NEED HELP ELECTRONICS
2. Two electronics technicians are looking at the technical manual for a piece of electronic equipment. The manual refers to a particular resistor as a “2.2 megohm resistor.” Technician A says that this means that the resistance value of the resistor
asked by Ron 
chemistry
How do you calculate the theoretical cell voltage? 1) ZnZn^+2 (1M) CuCu^+2 (1M) 2) CuCu^+2 (1M) ZnZn^+2 (1M) 3) FeFe^+2 (1M) CuCu^+2 (1M) 4) ZnZn^+2 (1M) CuCu^+2 (0.1M) 5) CuCu^+2 (1M) CuCu^+2 (0.1 M) Now 4 and 5 have different moles how do
asked by fenerbahce 
physics
Which direction will the support force by the wall point when the force diagram is drawn? The book is held motionless against a wall by yout hand. (Up, down, legt or right?)
asked by dominique 
literacy
Search engines are most useful for finding
asked by filly 
Calc
The length (in centimeters) of a typical Pacific halibut t years old is approximately f(t) = 210(1 − 0.94e^−0.2t). (a) What is the length of a typical 9yearold Pacific halibut? cm (b) How fast is the length of a typical 9yearold Pacific halibut
asked by Alec 
math
if 1/3 of homework is done before dinner, and 3/5 after dinner. What fraction of homework remains?
asked by kisha 
math
After its fastest rate of growth ever during the 1980s and 1990s, the rate of growth of world population is expected to slow dramatically in the twentyfirst century. The function G(t) = 1.58e−0.213t gives the projected annual average percent population
asked by Alec 
Mathematics 1
In audition for school play, 70% passed the quality of the jurors for the first week. of those remaining, 20% were chosen. if only 7 were qualified, how many tried their luck?
asked by PDF 
math
On the basis of data collected during an experiment, a biologist found that the growth of a fruit fly (Drisophila) with a limited food supply could be approximated by the exponential model below where t denotes the number of days since the beginning of the
asked by Jemima 
physics
A 326 g object is attached to a spring and oscillates with a period of 0.25 s. The total energy in this system is 5.83 J. What is the amplitude of the motion?
asked by shawn 
What does this mean
In art, I was given a painting, and im suppose to include four points in my analysis of why it is considered realistic, also i have to qualify my analysis with reasoning fitting the historical period of the art. What does all this exactly mean? For the
asked by Anonymous 
MATHS
find the square root of 0.5
asked by TUHITUHI 
Algebra
A barrel contains 181 gallons of paint and is being drained at a constant rate of 5 gallons per hour. Write and expression that models the number of gallons, g, after t hours.
asked by Michael 
Physics
A 19g lead bullet is shot with a speed of 340 m/s into a wooden wall. Assuming that 70% of the kinetic energy is absorbed by the bullet as heat (and 30% by the wall), what is the final temperature of the bullet? (Assume the bullet is initially at room
asked by James 
math
Angle A ? Angle B 90° Angle C 27°
asked by Lydsey 
geometry
A woman who is 6ft tall casts a 4.5foot shadow at the same time that a building casts a 75foot shadow. What is the height of the building in feet?
asked by jane 
calc
by cutting away identical squares from each corner of a rectangular piece of cardboard and folding up the resulting flaps, the cardboard may be turned into an open box. if the cardboard is 16 inches long and 10 inches wide, find the dimensions of the box
asked by Jemima