len
Popular questions and responses by len
social studies
In which of the following industries are the majority of jobs in the United States and Canada found? 1. A. service B. education C. healthcare D. tourism 2. Which role does the government play in the economies of the United States and Canada? A. The
asked on September 6, 2018 
Math
Mark has pair of pants in three different colors, blue, black and brown. He has five colored shirts: a white, a red, a yellow, a blue and a mixedcolored shirt. What is the probability that Mark wears a black pair of pants and a red shirt on a given day?
asked on May 4, 2017 
accounting
examples of relevant economic events
asked on June 14, 2017 
pysics
A BMW convertible travels on the german autobahn at the speed of 128km/h.what is the speed of the car, in m/s and in mi/h.what is the answer.
asked on June 25, 2016 
environmental science
Explain the main point concerning exponential growth and whether it is good or bad. Compare exponential growth to a logistic growth curve and explain how these might apply to human population growth. What promotes exponential growth? What constrains
asked on November 2, 2011 
Probability theory
suppose a student is offered a chance to draw a card from ordinary deck of 52 playing cards and win $10 if he or she draws an ace, $ 2 for a King, and $1 for a queen. If $2 must be paid to play the game, what is the expected winnings every time the game is
asked on May 3, 2017 
differential calculus
a bed is in a form of a circular sector. find its radius if the area of the sector is 1000 centimeter square and its perimeter is a minimum
asked on July 31, 2013 
Math
What are the major advantages of a place value system over a nonplace value system of numeration?
asked on May 25, 2017 
Chemistry
How many moles are 400 g of Ca(HSO4)2
asked on January 13, 2013 
physical acience
Compute the density in g/cm3 of a piece of metal that has a mass of 0.360 kg and a volume of 74 cm3.
asked on January 26, 2014 
phydraulic
A cylinder must move a 2000 lb load 2 ft. How much work must it perform?
asked on October 15, 2013 
math 157
Give the equation of the line that is perpendicular to the line y = x + 4 and passes through point (0, 1)
asked on October 11, 2010 
Probability theory
Your company plans to invest a particular project. There is a 5% chance that you will lose $30, 000, a 40% chance that you will break even, and a 25% chance that you will make $55, 000. Based solely on this information, what should you do?
asked on May 3, 2017 
chemistry
What is the molarity of a salt solution in which 117.0 grams of salt (NaCl) is dissolved in water to give 5.00 L of solution? Show all work including units.
asked on August 23, 2011 
math
1. A number leaves remainder 6 when divided by 10. What is the remainder when the number is divided by 5? Justify your reasoning.
asked on September 8, 2010 
math
For which integers a, b, and c does a – b c= a (b – c) Justify your answer.
asked on September 7, 2010 
Number theory
Express 550 and 1645 in the scale of 2, 5, 6, and 9.
asked on June 28, 2017 
Probability theory
A baseball team has 4 infielders and 6 outfielders. How many ways can four fielders be sent in a game consisting of 2 infielders and 2 outfielders?
asked on May 3, 2017 
science
What are some social, economic, aesthetics, and ethical issues involved in a current environmental controversy?
asked on November 1, 2011 
Math
Ronald lee has been told by a company that the probability he will be offered a job in the quality control department is .6 and the probability he will be asked to be foreman of the department, if he offered the job is .1. what is the probability that he
asked on May 4, 2017 
Math
Ronald lee has been told by a company that the he will be offered a job in the quality control department is 0.6 and the probability he will be asked to be foreman, if he is offered the job, is 0.1.What is the probability that he will be offered the job
asked on May 3, 2017 
Probability theory
If the probability of a newborn child is a male is 1/2, what is the expected number of male children in a family having 4 children?
asked on May 3, 2017 
Ecology
Find the name of an organism hiding in the word habitat
asked on September 26, 2011 
Number theory
Express 550 in the scale of 2
asked on June 28, 2017 
Number theory
Prove the divisibility criteria for 9, 11, and 17.
asked on June 28, 2017 
Math
If a three digit number id formed from the digits 1, 2, 3, 4, 5, 6, and 7 with no repetitions, tell how many of this three digit numbers will have a number value between 100 and 500.
asked on May 3, 2017 
Medical billing and coding
Explain the importance of a fee schedule and the factors it's based on.
asked on August 5, 2010 
Math
Having trouble knowing where to start with this one: A maker of tools claims the average amount of time it takes to assemble a table saw is 50 mins with a standard deviation of 40 mins. What is the probability that the sample mean will be less than 44 mins
asked on March 23, 2010 
Math
What is fraction of5/6
asked on February 1, 2016 
Math
Robert feeds his dog 1 lb 4 oz of dog food a day. How long will a 40 pound bag last ?
asked on May 8, 2012 
statistics
Refer to Table 1 in the article “Snail Shells in a Practical Application of Statistical Procedures” in the Electronic Reserve Readings. Find the margin of error, E, with a confidence interval of your choosing (5099%). What is the significance of
asked on April 26, 2012 
Number theory
Express 550 in the scale of 6.
asked on June 28, 2017 
Math
A firm selling type writers knows that four of its 100 type writers will not return properly and that five different ones have a defective key.If none of the other type writers has a defect,what is the probability of a buyer selecting a defective
asked on May 4, 2017 
Math
A firm selling type writers knows that four of its 100 type writers will not return properly and that five different ones have defective key.If none of the other type writers has a defect, what is the probability of a buyer selecting a defective type
asked on May 3, 2017 
math
by selling an article for Rs. 500, a profit 12 1/2% is made. find the cost price of the article? let c.p. be x. then gain =25/2
asked on July 2, 2016 
Medical billing and coding
Discuss coding for obstetrics, including items covered by the global fee for antepartum and postpartum periods of normal pregnancy.
asked on August 5, 2010 
math
1/8 inch= 5 mile, then 1 inch = how many miles
asked on February 26, 2013 
pysical science
how do you find the density of a solution where the mass=60.75gms and the volume=45ml
asked on May 12, 2011 
Number theory
express 1645 in the scale of 2
asked on June 28, 2017

world history
d
posted on November 26, 2019 
math
Hold on there knights! Let’s say that the first one tested is a dud. Is it reasonable to stop the testing right there and say every firecracker is a dud? And how confident of that estimation would you be? It would be more helpful to explain how many
posted on September 22, 2019 
science
Platelets and fibrin
posted on January 8, 2016 
Stats
2222
posted on February 28, 2015 
Social Studies
a
posted on August 31, 2012 
4th grade
6 2 9 3 12 4
posted on March 30, 2011 
chemistry
how many signigicant figures does 890 have?
posted on September 15, 2010 
sports unscramble
Penalty Kill
posted on October 25, 2007