Thursday

April 24, 2014

April 24, 2014

Number of results: 9,475

**Statistics**

Mileage tests were conducted on a randomly selected sample of 100 newly developed automobile tires. The results showed that the average tread life was 52,515 miles with a standard deviation of 3,550 miles. What is the best estimate of the average tread life in miles for the ...
*Sunday, April 20, 2014 at 3:27pm by Ray*

**prob and stats**

The tread lives of the Super Titan radial tires under normal driving conditions are normally distributed with a mean of 34000 mi and a standard deviation of 1700 mi. (a) What is the probability that a tire selected at random will have a tread life of more than 35071 mi? Round ...
*Friday, October 15, 2010 at 1:14am by br0Ok3*

**physics**

A stone has a mass of 6.01 g and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.948. When the tire surface is rotating at 14.7 m/s, the stone flies out of the ...
*Wednesday, February 23, 2011 at 7:07pm by heather*

**physics**

A stone has a mass of 3.40 g and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.916. When the tire surface is rotating at 18.8 m/s, the stone flies out of the ...
*Monday, April 30, 2012 at 2:26pm by Anonymous*

**Physics**

A stone has a mass of 6.00 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.73. When the tire surface is rotating at a maximum speed of 17 m/s, the ...
*Wednesday, November 7, 2012 at 6:53am by Don*

**math**

The tread depth of the tires on your family's new car is 3/8 inch. you predict that, as a result of driving the car, the change in tire tread depth will be about -3/64 inch per year. A. write a variable expression for the tire tread depth after y years of driving. Use your ...
*Wednesday, January 7, 2009 at 10:39pm by matt*

**Math**

Many tires come with 13/32 inch of tread. The first 2/32 inch wears off quickly(say during the first 1000miles). From then on the tire wears uniformly. A tire is considerd "worn out" when on 2/32 inch of tread is left. a. how many 32nds of an inch of usuable tread does a tire ...
*Tuesday, October 13, 2009 at 10:57pm by Julie*

**Alg**

A car with good tread can stop in less distance than a car with poor tread. A model for the stopping distance d, in feet, of a car with good tread on dry cement is d = 0.04v2 + 0.5v, where v is the speed of the car in miles per hour. If the driver must be able to stop within ...
*Wednesday, April 16, 2014 at 8:41am by K*

**Physics**

A stone has a mass of 3.0 10-3 kg and is wedged into the tread of an automobile tire, as the drawing shows. The coefficient of static friction between the stone and each side of the tread channel is 0.86. When the tire surface is rotating at 10 m/s, the stone flies out of the ...
*Sunday, October 7, 2007 at 1:43pm by Student*

**math**

a tire manufacturer believes that the tread life of its tires are normally distributed and will lst an average of 60,000 miles with a standard deviation of 3,000 miles. sixty-four randomly selected tires were tested and the average miles where the tire failed were recorded. ...
*Tuesday, May 31, 2011 at 7:02pm by monk*

**Physics**

A tire 2.0 ft in diameter is placed on a balancing machine where it is spun so that its tread is moving at a constant speed of 51 mph. A small stone is stuck in the tread of the tire. What is the acceleration of the stone as the tire is being balanced?
*Wednesday, March 20, 2013 at 3:01pm by Nikki*

**Statistics **

In a study, nine tires of a particular brand were driven on a track under identical conditions. Each tire was driven a particular controlled distance (measured in thousands of miles), and afterward the tread depth was measured. Tread depth is measured in “mils.” Here, 1 mil is...
*Tuesday, February 25, 2014 at 7:23am by Tracy *

**physics**

A 1.1 pebble is stuck in a tread of a 0.85 diameter automobile tire, held in place by static friction that can be at most 3.9 . The car starts from rest and gradually accelerates on a straight road.How fast is the car moving when the pebble flies out of the tire tread?
*Sunday, March 11, 2012 at 11:07pm by Anonymous*

**STAT - Please check answer**

In a study, nine tires of a particular brand were driven on a track under identical conditions. Each tire was driven a particular controlled distance (measured in thousands of miles), and afterward the tread depth was measured. Tread depth is measured in “mils.” Here, 1 mil is...
*Monday, February 24, 2014 at 3:27pm by Tracy *

**Statistics**

An electrical firm which manufactures a certain type of bulb wants to estimate its mean life. Assuming that the life of the light bulb is normally distributed and that the standard deviation is known to be 40 hours, how many bulbs should be tested so that we can be 90 percent ...
*Friday, November 16, 2012 at 11:35am by Blerp*

**math**

The tread life of a particular tire is a random variable best described by a normal distribution with a mean of 60,000 miles and a standard deviation of 2000 miles. What is the probability that a randomly selected tire of this brand will last longer than 58,000 miles? A.0.7266...
*Saturday, September 18, 2010 at 2:17pm by Madison*

**MBA**

1. After extensive research and development, Good Days Tires Corp., has recently developed a new tire, the Super Tread, and must decide whether to make the investment to produce and market the Super Tread. The tire would be ideal for drivers doing a large amount of wet weather...
*Monday, September 10, 2012 at 4:38am by fauzi*

**statistics**

the life of light bulbs is distributed normally. The variance of the life time is 225 and the mean lifetime of a bulb is 590 hours. Find the probability of a bulb lasting for at most 603 hours. Yeah, WTF??? Why me!??!
*Thursday, May 3, 2012 at 1:58pm by Logan*

**Statistics**

An industrial engineer has found that the standard household light bulbs produced by a certain manufacturer have a useful life that is normally distributed with a mean of 250 hours and a variance of 2500. (a) What is the probability that a randomly selected bulb from this ...
*Tuesday, March 11, 2014 at 10:09am by bappy*

**stats**

The life of tires manufactured by Omega Tires Inc is believed to be normally distributed with a mean of 110,000 km and a standard deviation of 5,000 km. A random sample of 200 tires is tested . What is the problability of the mean life of this sample being between 109,000 and ...
*Tuesday, October 9, 2012 at 10:46am by Carlos*

**Statistics**

he life expectancy of a lung cancer patient treated with a new drug is normally distributed with a mean of 4 years and a standard deviation of 10 months
*Sunday, September 30, 2012 at 9:03am by Ty*

**statistics**

The numbers of hours of life of a torch battery is normally distributed with a mean of 150 hours and standard deviation of 12 hours. In a quality control test, two batteries are chosen at random from a batch. If both batteries have a life less than 120 hours, the batch is ...
*Wednesday, January 26, 2011 at 10:04am by Anonymous*

**English IV**

How does chalkboard equal life? I know it's a conceit...but how does it work? These are my guesses! It's a blank slate. You can write what you want on it. You can erase it, but traces are left behind. ?? How about this? A chalk piece represents life. The chalkboard represents ...
*Tuesday, July 3, 2007 at 12:22pm by Summer*

**Physics for Life science**

1.You are riding on a 20m diameter Ferris wheel. when your cart is at the bottom, you feel twice as heavy as you normally are. what is the speed of the wheel?
*Monday, May 3, 2010 at 7:08am by Simeon*

**Math**

To determine whether a pancreas is functioning normally, a tracer dye is injected. A normally functioning pancrease secretes 4% of the dye each minute. A doctor injects 0.5g of the dye, and checks twenty minutes later. He finds that 0.35g of the dye remains If the pancreas ...
*Tuesday, April 23, 2013 at 6:50pm by Mercy*

**math-statistics**

A manufacturer claims that the life span of its tires is 50,000 miles. You work for a consumer protection agency and you are testing this manufacturer's tires. Assume the life spans of the tires are normally distributed. You select 100 tires at random and test them. THe mean ...
*Tuesday, January 29, 2008 at 1:16am by Karinna*

**college**

Assume that the life expectancy of U.S. males is normally distributed with a mean of 80 years and a standard deviation of 4 years. What is the probability that a randomly selected male will live more than 85 years?
*Thursday, April 29, 2010 at 10:06pm by Brittney*

**Statistics**

If the population is normally distribution then the sample must be normally distributed even for small sample size? True or False. The variance of the standard normal distribution is always equal to 1.? True or False. A continuous random variable may not be normally ...
*Friday, February 7, 2014 at 4:25pm by Jamie*

**Algebra**

A building code regulation requires that the slope of the riser to the tread of a staircase be 60% with an absolute deviation of 10%. Find the maximum and minimum slopes of the staircase.
*Friday, August 3, 2012 at 1:07pm by Kiri*

**math**

Your roommate is working on his bicycle and has the bike upside down. He spins the 68.0cm -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second.
*Wednesday, September 10, 2008 at 3:08pm by Derby*

**english**

How can I word these sentences better? 1)Regardless of how misery changes a person, everyone always wants to get rid of it. 2)The characters of the novel demonstrate how misery drives people to do things they would not normally do. 3)While standing near the dead body of his ...
*Wednesday, February 27, 2008 at 5:18pm by jm*

**physics**

a bus slams on brakes to avoid an acciden.the tread marks of the tires are 80 meter long. if coefficient of kinetic friction is 0.7, what was the speed before applying the brakes?
*Saturday, October 2, 2010 at 2:36am by kristel*

**english**

places in his life conflicts in his life men in his life can it be his father? people he worked with etc mistakes he made victories he celebrated having kids publishing his poetry/plays elizabethan cultures and traditions that influenced his life and carreer controversies in ...
*Wednesday, April 23, 2014 at 7:51pm by Reina B.*

**Physics help!!**

A tire 0.500 m in radius at a constant rate of 200 rev/min.Find the speed and acceleration of a small stone lodged in the tread of the tire( on its outer edge).
*Monday, February 18, 2013 at 12:38am by Sammie*

**science**

A tire 0.500 m in radius rotates at a constant rate of 200 rev/min. Find the speed and acceleration of a small stone lodged in the tread of the tire ( on its outer edge ).
*Sunday, February 17, 2013 at 5:09am by Sammie*

**statistics**

A local tire store suspects that the mean life of a new discount tire is less that 39,000 miles. To check the claim, the store selects randomly 18 of these new discount tires. When they are tested, it is found that the mean life is 38,250 miles with a sample standard deviation...
*Tuesday, June 8, 2010 at 1:45pm by Barbara*

**statistics**

The life span of the battery pack is known to be Normally distributed with a mean of 250 hours and a standard deviation of 20 hours. How to find the percentage of the battery packs lasting more than 250 hrs.
*Sunday, May 6, 2012 at 4:31pm by noe*

**Finite Math**

If the life in years, of a television set is normally distributed with a mean of 46 years and a standard deviation of 4 years, what should be the guarantee period if the company wants less than 3% of the television sets to fail while under warranty?
*Saturday, February 13, 2010 at 11:20am by Maria*

**Ethics**

Which of the following answers to the meaning of life did Tolstoy hold prior to his change of heart and mind? my answer is A a. Life has no meaning, and we must embrace that fact. b. Life's meaning is to provide comfort for oneself and one's family. c. Life's meaning is to ...
*Monday, February 17, 2014 at 10:19pm by Annmarie*

**Ethics**

Which of the following answers to the meaning of life did Tolstoy hold prior to his change of heart and mind? my answer is A a. Life has no meaning, and we must embrace that fact. b. Life's meaning is to provide comfort for oneself and one's family. c. Life's meaning is to ...
*Monday, February 17, 2014 at 11:20pm by Annmarie*

**Social Studies-Amrican History**

What were some of the first calls of independence ffrom the colonists??? I've got a few: Join or Die Unite or Die Don't tread on me Give me librty or give me Death ......
*Monday, October 31, 2011 at 10:35am by Alice*

**English III**

In “Lucinda Matlock,” what is the title character's attitude toward life? A. She thinks life is hard. B. She thinks life is worthwhile. C. She thinks life is boring. This one has to be C because she is happy all the time.
*Sunday, June 10, 2012 at 4:08pm by Anonymous*

**Physics**

A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?
*Tuesday, February 14, 2012 at 11:11pm by Max*

**Physics**

A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?
*Tuesday, February 14, 2012 at 11:12pm by Max*

**math**

Your roommate is working on his bicycle and has the bike upside down. He spins the 68.0cm -diameter wheel, and you notice that a pebble stuck in the tread goes by three times every second. What is the pebble's speed? What is the pebble's acceleration?
*Wednesday, September 10, 2008 at 3:53pm by Derby*

**physics**

A rock stuck in the tread of a 57.0 cm diameter bicycle wheel has a tangential speed of 3.00 m/s. When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2. At what time is the magnitude of the rock's acceleration equal to g?
*Saturday, November 27, 2010 at 5:50pm by skywalker*

**phys**

A rock stuck in the tread of a 56.0--diameter bicycle wheel has a tangential speed of 3.10 . When the brakes are applied, the rock's tangential deceleration is 1.30m/s2 What is the magnitudes of the rock's angular velocity at = 1.70 ?
*Monday, May 28, 2012 at 11:17pm by keren*

**physics**

If the physical half-life of sulfur-35 is 87.1 days, and the biologic half-life in the testicle is 632 days, what is its effective half-life in this organ? I know i have to find the time and then the half-life. But im having trouble finding the time A(t)=Ao x e ^ (-0.693) (t...
*Thursday, October 24, 2013 at 9:58pm by Sarah*

**probability and statistics**

An electrical firm manufactures light bulbs that have a usuable life that is normally distributed with a mean of 1000 hours and a standard deviation of 80 hours. Find the probability that a package of 4 bulbs would last at least 4400 hours.
*Sunday, April 29, 2012 at 7:57pm by Kim*

**statistics**

the life expectancy of lung cancer patient treated with a new drug is normally distributed with a mean of 4 years and a standard deviation of 10 months what is the probability that a randomly selected lung cancer patient will last more than 5 years
*Sunday, March 28, 2010 at 11:08am by yolanda*

**adult education**

How will your life experiences prove beneficial as you move through your degree program? Briefly describe two life experiences and illustrate how each will be useful as you pursue academic goals. How can you reject the negative influences in your life and benefit from the ...
*Sunday, November 7, 2010 at 4:35pm by tee*

**statistik**

can you show me the calculation ;) The life expectancy of computer terminals is normally distributed with a mean of 4 years and standard deviation for 10 months. a. What is the probability that a randomly selected terminal will last more than 5 years? b. What percentage of ...
*Sunday, December 2, 2012 at 6:31am by mira*

**shakespeare**

places in his life can it be where he was born what else conflicts in his life idk women in his life anne hathaway his wife men in his life can it be his fayher and the ppl he owrked with and his publisher children in his life susanna hamnet and judith mistakes he made idk ...
*Tuesday, April 22, 2014 at 8:07pm by Reina B.*

**History**

What factors shaped the move from colonial, country life to modern, urban life? What was urban city life like during the rise of urbanization? How was it different or similar to modern urban life?
*Monday, January 4, 2010 at 2:16pm by ggift*

**Ethics**

Which of the following answers to the meaning of life did Tolstoy hold prior to his change of heart and mind? my answer is A a. Life has no meaning, and we must embrace that fact. b. Life's meaning is to provide comfort for oneself and one's family. c. Life's meaning is to ...
*Tuesday, February 18, 2014 at 6:59pm by Annmarie*

**writing**

do you think that life on earth could become this difficult during your life time?what factor could cause to take place ?a story about that shows what life might be like in the world?
*Tuesday, January 1, 2013 at 12:39pm by Eduarda*

**liteature**

In The Call of the Wild, when London writes about "what a puppet thing life is," it reflects the theme summarized in which of the following statements? A. Our lives are lived in response to our predetermined fate. B. The course of a life is determined by pure chance. C. Each ...
*Tuesday, April 14, 2009 at 11:02am by victoria*

**Literature**

In The Call of the Wild, when London writes about "what a puppet thing life is," it reflects the theme summarized in which of the following statements? A. Our lives are lived in response to our predetermined fate. B. Each life pits mercy against nature. C. Every life is based ...
*Monday, September 24, 2012 at 4:50pm by Sara Beth*

**English**

Here is the second part of the same summary. Thank you very much, Writeacher. 1) According to the puritan middle class ideal of the age, marriage was the highest achievement in life, the only way open to women to improve their social status. 2) Their marriage is the reward ...
*Wednesday, April 4, 2012 at 6:50pm by Matthew*

**life!+ english!**

“What he could do he did.” How does this statement relate to our lives? I think what the teacher meant is, "How does that statement relate to your life?" This is something you need to answer for yourself. I cannot relate it to your life. You might be able to relate to it ...
*Wednesday, November 29, 2006 at 12:55pm by harley!*

**HUMAN LIFE**

I have to do a project about the human life cylce dose anyone know any good websites or any good information about the seven stages of life or the human life span???? PLZZ HELP ME IT IS DUE THIS WEDNESDAY CAN SOMEONE PLZZZ HELP ME PLZZZZ
*Monday, March 8, 2010 at 1:01am by Rachael.gardner*

**math**

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours?
*Monday, April 2, 2012 at 6:10pm by Bridget*

**statistics**

If light bulbs have lives that are normally distributed with a mean of 2500 hours and a standard deviation of 500 hours, what percentage of light bulbs have a life less than 2500 hours?
*Sunday, May 26, 2013 at 2:49pm by madonna*

**Chemistry problem**

I refer to my earlier post on v/v versus w/w. I would be very grateful for any advice provided. For 95% ethanol purchased from manufacturer, we normally take it as 95%v/v. For 98% sulphuric acid, it seems like it is normally 98% w/w. I have also seen a potassium hydroxide 85...
*Monday, September 20, 2010 at 5:08pm by annie*

**math(trig)**

1) A 6-ft propeller turns at 1200 revolutions per minute. Compare the angular velocity of the tip with the angular velocity at a point 10 in. from its center. 2) What is the angular velocity of a point on the tread of a 15-in. diameter tire on a car traveling 55 mph?
*Monday, December 6, 2010 at 8:25pm by confused*

**Physics**

A small plastic ball with a mass of 6.50x10^-3 kg and with a charge of +0.150x10^-6 C is suspended from an insulating thread and hangs between the plates of a capacitor. The ball is in equilibrium, whit the tread making an angle of 30 degrees with respect to the vertical. The ...
*Wednesday, February 6, 2008 at 8:07pm by Trevor*

**Physics**

A small plastic ball with a mass of 6.50x10^-3 kg and with a charge of +0.150x10^-6 C is suspended from an insulating thread and hangs between the plates of a capacitor. The ball is in equilibrium, whit the tread making an angle of 30 degrees with respect to the vertical. The ...
*Wednesday, February 6, 2008 at 8:20pm by Trevor*

**physics**

A small plastic ball with a mass of 6.50x10^-3 kg and with a charge of +0.150x10^-6 C is suspended from an insulating thread and hangs between the plates of a capacitor. The ball is in equilibrium, whit the tread making an angle of 30 degrees with respect to the vertical. The ...
*Wednesday, February 6, 2008 at 8:25pm by Trevor*

**Physics**

A small plastic ball with a mass of 6.50x10^-3 kg and with a charge of +0.150x10^-6 C is suspended from an insulating thread and hangs between the plates of a capacitor. The ball is in equilibrium, whit the tread making an angle of 30 degrees with respect to the vertical. The ...
*Wednesday, February 6, 2008 at 8:43pm by Trevor*

**Social Studies.\ASAP PLEASE**

What factors shaped the move from colonial, country life to modern, urban life? What was urban city life like during the rise of urbanization? How was it different or similar to modern urban life? Can you help me? I have not heard from my teacher about exactly what is need or ...
*Wednesday, April 7, 2010 at 2:37pm by Maryanne*

**life science**

I cant grasp half life - the study guide question is how is half life dating used by scientists - I have 2 lines to write an answer
*Thursday, February 7, 2008 at 11:53pm by claire*

**Math**

the average life expectancy in canada is 80.1 years. Estimate the country's life expectancy in hours? I know the answer is 700,800 but I cant for the life of me figure out how they get that! Thanks
*Tuesday, May 20, 2008 at 10:47pm by Maggie*

**university studies**

How have you used these actions to solve problems in your daily life? How are critical thinking skills in your daily life and in your academic life similar? How are they different?
*Saturday, October 8, 2011 at 11:22pm by us 101 week 9 DQ 3*

**Angular Acceleration**

A rock stuck in the tread of a 50.0 cm diameter bicycle wheel has a tangential speed of 3.5 0m/s . When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2 . What is the magnitudes of the rock's angular acceleration at = 1.70 ?
*Tuesday, February 14, 2012 at 11:13pm by MaxX*

**SCIENCE**

IS THERE LIFE ON VENUS why dont you go find out? Probably there is life on Venus, but you have to be careful how you define life.
*Thursday, August 18, 2005 at 8:49am by SEAN*

**college chem**

a first order reaction has a fifth life of 20 seconds ( the amount of time needed to use up 1/5) a) Prove that the reaction has a constant 1/5 life. b) find the half life.
*Sunday, February 21, 2010 at 10:31pm by hymie*

**STATISTICS**

1. What if the size for each sample were increased to 20? Would a sample mean of 115 or more be considered unusual? Why or why not? 2. Why is the Central Limit Theorem used? 3. Consider situations in your work or home that could be addressed through a continuous probability ...
*Thursday, February 2, 2012 at 2:04pm by B*

**Chemistry**

Uranium-238 has half life of 4.51 * 10^9 years Uranium-234 has half life of 2.48 * 10^5 years Thorium-230 has half life of 8.0 * 10^4 years Radium-226 has half life of 1.62 * 10^3 years Lead-210 has half life of 20.4 years. The rate constant for the decay of unstable nuclide X...
*Tuesday, March 20, 2012 at 2:23pm by Harry*

**Statistics**

Are these statements true or false? 1. The sample mean, the sample proportion and the sample standard deviation are all unbiased estimators of the corresponding population parameters. 2. If the population is normally distributed with known variance then the sample mean may not...
*Friday, November 5, 2010 at 5:03pm by help*

**arithmetic**

If a person smokes 20 cigarettes in a day for 58 years of their life, how many cigarettes do they smoke? If each cigarette reduces a person's life by 5 minutes, by how many days is a person's life reduced if they smoke 20 cigarettes a day for 58years of their life? Please can ...
*Wednesday, May 6, 2009 at 4:40am by Sam*

**math**

one fifth of my life I wanted to become a teacher. 3/25 of my life I was a teenager. 9/25 of my life I was married to my husband. Three-fifth of my life my son was born. Fifteen years after that, my daughter was born. Seven years after that I got a divorce from my husband. ...
*Wednesday, March 9, 2011 at 9:33pm by ann*

**home insurance**

the type of life insurance often used as mortagage insurance is: A.decreasing term B.universal life C.whole life D.homeowners insurance i got B
*Sunday, October 16, 2011 at 5:42pm by Ciara*

**Life o**

Describe the life style of Hypertension disease and 12 explanation. Provid 10 ways in which you critically discuss how life style/behaviour disease impact on the teenager?
*Tuesday, June 4, 2013 at 11:38am by Pertunia*

**floral design**

Which one of the following statements about standard foam is true? A. Once a foam brick is soaked, no additional water can be added to the container. B. A foam brick can't stand any higher than its container. C. The water it holds doesn't evaporate normally. D. The water it ...
*Thursday, January 10, 2013 at 5:24pm by Aaya*

**Chemistry**

Balance the equation in aqueous basic solution: As2S3(s) + H2O2(aq) → AsO43-(aq) + SO42-(aq) I normally understand how to balance redox equations, but this one confuses me because I would normally think that the As2S3 is being reduced to AsO4^3-, but since the As2S3 has ...
*Sunday, June 5, 2011 at 4:35pm by Joanne*

**bio**

how does the life cycle of hatena compare to the origin of eukaryotic cells as noted in Margulis’ Endosymbiotic Theory? something about how one life form engulfs another and incorporates it, evolving until it becomes dependent on it and has created an entirely new life form?
*Monday, January 19, 2009 at 3:21pm by erin*

**biology**

how does the life cycle of hatena compare to the origin of eukaryotic cells as noted in Margulis’ Endosymbiotic Theory? something about how one life form engulfs another and incorporates it, evolving until it becomes dependent on it and has created an entirely new life form?
*Monday, January 19, 2009 at 8:07pm by erin*

**science**

how does the life cycle of hatena compare to the origin of eukaryotic cells as noted in Margulis’ Endosymbiotic Theory? something about how one life form engulfs another and incorporates it, evolving until it becomes dependent on it and has created an entirely new life form?
*Tuesday, January 20, 2009 at 8:16am by erin*

**Statistics**

In a survey, the guess at the mean age for the class had a mean of 21.9 and a standard deviation of 3.03. Given that Normally distributed populations have a first quartile of Z=-0.67 and a third quartile of Z=.67, what does this suggest about whether or not these guesses are ...
*Thursday, July 14, 2011 at 3:30pm by david*

**science**

What is the ecological uniqueness of the plant and animal life in the Galapagos Islands? ... What kind of plant life, animal life and geology of the ecosystem ...
*Thursday, September 17, 2009 at 1:27am by Perry*

**math**

A Ford Focus goes about 2 meters down the road for each revolution of its tires, which, when new, have treads about 1 centimeter thick. If it goes 80,000 km (50,000 mi) before its tread is gone, find the average thickness of tire lost durin each revolution. Compare this ...
*Tuesday, September 11, 2012 at 6:45pm by Sandy*

**Statistics**

A purchasing agent for a trucking company is shopping for replacement tires for their trucks from two suppliers. The suppliers' prices are the same. However, Supplier A's tires have an average life of 60,000 miles with a standard deviation of 10,000 miles. Supplier B's tires ...
*Thursday, December 17, 2009 at 10:42am by Tykrane*

**Statistics**

A purchasing agent for a trucking company is shopping for replacement tires for their trucks from two suppliers. The suppliers' prices are the same. However, Supplier A's tires have an average life of 60,000 miles with a standard deviation of 10,000 miles. Supplier B's tires ...
*Thursday, December 17, 2009 at 11:57am by Tykrane*

**english**

can anyone tell me if this is correct? Read the following sentences, and focus on the grammar area specified on the top line before the statement then select the correct sentence (a or b) Vague pronouns - B 25a. Air pollution normally increases along with population growth. ...
*Saturday, July 19, 2008 at 6:56pm by Anonymous*

**Psychology**

Behavioral and psychodynamic perspectives differ in that the former emphasizes the____, while the latter focuses on___. A) the blank slate;pattern of traits B) emotional life;objective life C) determinism; functionalism D) observable behavior;inner life I want to say the ...
*Saturday, October 9, 2010 at 12:33pm by Melisa*

**Science**

Which fact provides the best evidence for the scientific theory of the evolutionary development of life on the earth? a. fossils are found almost exclusively in sedimentary rocks b. characterisitcs of simpler forms of life can be found in more complex forms of life c. only a ...
*Tuesday, March 31, 2009 at 6:07pm by Angie*

**physics**

A rock stuck in the tread of a 57.0 cm diameter bicycle wheel has a tangential speed of 3.00 m/s. When the brakes are applied, the rock's tangential deceleration is 1.40 m/s^2. A) What is the magnitudes of the rock's angular acceleration at t=1.60 s? B) At what time is the ...
*Friday, November 26, 2010 at 5:02pm by Steph*

**finance**

When planning the retirement payout, there are several options from which to choose. With ______________ option, the annuity provides payments over the life of both you and yor spouse. A. lump sum annuity B. single life annuity C. annuity for life D. combination annuty Is the ...
*Monday, November 11, 2013 at 6:18pm by Anthony*

**insurance**

Ordinary life insurance is another term meaning the same thing as: A. term life insurance. B. decreasing term insurance. C. whole life insurance. D. level term life insurance. i think c?
*Thursday, August 29, 2013 at 6:04pm by Vickie*

**poetry**

Read the following poem and answer questions that follow: Life, death,-death, life; the words have lead for ages Our thought and consciousness and firmly seemed Two opposites; but now long-hidden pages Are opened, liberating truths undreamed' Life only is, or death is life ...
*Sunday, February 17, 2013 at 3:32am by Gazala*

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