Monday
August 29, 2016

Posts by keith

Total # Posts: 216

Statistics
Assume that​ women's heights are normally distributed with a mean given by mu equals 63.8 inμ=63.8 in​, and a standard deviation given by sigma equals 3.1 inσ=3.1 in. Complete parts a and b.
July 24, 2016

science
number of grams of MgCl2 needed to prepare a 250ml of a 12% aqueous solution with 1.1g/ml density
June 28, 2016

math
find the equation of the family of hyperbolas where foci are (~4, 6) & (4, 0). Find the member of the family that passes through (2, 0)
May 9, 2016

Algebra 2
I had to solve this quadratic equation using the complete the square method. Did I do it correctly? The problem is 3x^2+18x+10= 0 (3x^2+18x+10)/3= 0/3 = x^2+6x+(10/3)=0 x^2+6x+(10/3)-(10/3)=0-(10/3) =x^2+6x= (-10/3( x^2+6x +(6/2)^2= -10/3+(6/2)^2 x^2+6x+9=(x+3)^2 (-10/3)+(9/1...
October 18, 2015

chemistry
how is .006421 expressed as two significant figures for density
September 6, 2015

chemistry
a block of metal has a width of 3.2cm, a length of 17.1cm, and a height of 3.7cm. its mass is 1.3kg. calculate the density
September 6, 2015

Math Help
In a certain state, each automobile license plate number consists of two letters followed by a four-digit number. To avoid confusion between "O" and zero and between "I" and one, the letters "O" and "I" are not used. How many distinct ...
April 23, 2015

Math
Thanks so much!
March 24, 2015

Math
I was thinking it was 1/10 but the only concern I have was when the questions says of the original lasagna.
March 24, 2015

Math
but shouldn't we include cameron? wouldn't this make 5 people?
March 24, 2015

Math
CAMERON AND HIS FAMILY WERE EATING LEFTOVER LASAGNA. There was 1/2 of the lasagna left. Cameron has one brother, one sister, and two parents. If everyone gets the same size pieces, what fraction of the original lasagna does each member of cameron's family receive?
March 24, 2015

Physics
A square coil with 30 turns has sides that are 18 cm long. When it is placed in a 0.31-T magnetic field, a maximum torque of 0.60 N⋅m is exerted on the coil. What is the current in the coil?
March 3, 2015

law
Does inspirational appeal always have to be engaged from a "top- down" approach? Can a leader develop a team where he becomes nearly "lateral" to his team at times that an inspirational appeal is employed, especially if it is genuine?
February 15, 2015

law
With the recent terrorists threats that the US has had for example the bombings at the Boston marathon, do you think the governement is going enough to protect the country from terrorism?
February 15, 2015

law
In your opinion what do you think is more important, civil liberties or security? Do you think that one outweighs the other?
February 15, 2015

algebra
The fraction of men in a population who are married is 2/3. The fraction of women in the population who are married is 3/5. What fraction of the population is single?
February 11, 2015

Math
I need to see how this is answered. 1. Lauren deposited $200 into her savings account with 1% interest rate compounded annually. After 4 years her balance was $208.12. Colby deposited $200 into a savings account that earned a 2% simple interest rate for 4 years, who had the ...
February 10, 2015

physics
Ok, so Intensity = Power/Area Intensity of sound expanding in a sphere will be I=Power/(4pi*radius^2) a) Power = 0.602, A= (4pi*(28.0/2)^2 Intensity = 0.602/2463.01 Intensity + 2.44E-4 Thats for one speaker. So multiply it by 2 for a total Intensity of 4.888E-4 b) For this we...
December 5, 2014

law
What is the context of the juvenile justice system
November 16, 2014

law
What is your perspective towards juvenile delinquency and school violence
November 16, 2014

law
illegal behavior
November 16, 2014

law
How do you feel about juvenile delinquency?
November 16, 2014

law
any state
November 16, 2014

law
Are the juvenile courts doing enough to change the treatment of juveniles in the justice system?
November 16, 2014

law
why you think so
November 16, 2014

law
But overrall Are parents and school management playing a suitable role to control increasing school violence?
November 16, 2014

law
Are parents and school management playing a suitable role to control increasing school violence? If not, what else can they do to help solve the problem of school violence?
November 16, 2014

Advanced Algebra
What is the inverse of each of the functions defined by the following equations, if the inverse exists. If the inverse does not exist for the largest possible domain, limit the domain so that the inverse will exist. In each case, give the domain and range of both the function ...
November 15, 2014

Basic Statistics
The Suva Energy Information Administration reported that 51.7% of homes in Sunnyville were heated by natural gas. A random sample of 200 homes found that 115 were heated by natural gas. Does the evidence supports the claim, or has the percentage changed? (Use a P-value method).
October 15, 2014

Statistics
A rental agency claims that the average rent that small-business establishments pay in Suvacity is $800. A sample of 10 establishments shows an average rate of $863. The standard deviation of the sample is $20. At α = 0.05,is there enough evidence to reject the agencies ...
October 15, 2014

math
Marianne buys 16 bags of potting soil that comes in 5/8 pound bags a.how many pounds of potting soil does she buy? b. if her father calls and says he needs 13 pounds of potting soil, how many additional bags should she buy?
September 22, 2014

KIPP Believe
The student-to-faculty ratio at a small college is 17:3. The total of students and faculty is 740. How many faculty members are there at the college? How many student?
September 1, 2014

Math
A car dealership employs 12 salesman and 28 mechanics. What is the ratio of salesman to mechanics?
August 12, 2014

Literatue- Ms. Sue help me plz
dramatic narrative
July 5, 2014

Literature-Help me Ms. Sue
. it provided more slaves for her owner
July 5, 2014

Literature-Help me Ms. Sue
meanings are hidden in imprecise words.
June 28, 2014

math
Aislyn decides to research attendance at sporting events for her project. She finds data on average attendance per game at San Diego Chargers (CA) football games and at Dallas Cowboy (TX) football games. The table shows the average attendance for each team for the 2000 season ...
May 27, 2014

english
ugh i will just go elsewhere
May 12, 2014

english
I do not have a clue what it is cause it has been a long time sense I have read this book. Can you please help me?
May 12, 2014

english
17. In Shirley Jackson’s “The Lottery,” how does the author use Tessie’s late arrival to help create suspense? (1 point) A The reader does not know what event Tessie has arrived late for. B The reader knows that the townspeople are aware of Tessie's ...
May 12, 2014

English
no
May 12, 2014

English
16. What is the effect of the author’s use of assonance in the following line from “The Raven?” “For the rare and radiant maiden whom the angels name Lenore—” (1 point) A It creates emphasis on Lenore. B It explains Lenore’s appearance. C It ...
May 12, 2014

English
Thx
May 12, 2014

English
12. What does the following quote reveal about Montressor’s intentions? "'Pass your hand,’ I said, ‘over the wall; you cannot help feeling the nitre. Indeed it is very damp. Once more let me implore you to return. No? Then I must positively leave you. ...
May 12, 2014

World REgional Geography
A. expanding the copra trade
May 8, 2014

business Math
900.38
April 7, 2014

Mathematics lit, physical science, life science. Geography and englsh ,sepedi and l.o
Clinical Psychologist
March 25, 2014

poetry part 1
a narrow wind complains all day
March 16, 2014

Liberty
What is the sample Z score to reject the null hypothesis if the cut off Z score +-2.31?
February 21, 2014

statistics
A population is normally distributed with mean 30, population SD =10, Sample size 25. What are the mean and variance of the distribution of means, respectively?
February 20, 2014

MATH
14/27
January 21, 2014

Math
Samantha swam 30 meters to a boat in 16 seconds. How long did it take her to swim each meter? I worked it out this way 8/15 x 30 = 240/15 240 divided bt 15 = 16 seconds my teacher said I was wrong and said the answer was 30/16????
January 18, 2014

Math
Samantha swam 30 meters to a boat in 16 seconds. How long did it take her to swim each meter? How would I work this out? Thank You
January 18, 2014

physics
A 0.40 kg mass is attached to a spring with force constant 26 N/m and released from rest at a distance of 3.2 cm from the equilibrium position Use conservation of energy to find the speed of the spring when it is halfway to the equilibrium position Find the maximum speed of ...
November 21, 2013

Accounting
1.More specifically, in the third and fourth quarter of 2000, at the direction and with the knowledge of WorldCom’s senior management, Vinson Normand and others, by making and causing to be made entries in WorldCom’s books which improperly decreased certain revenues ...
October 5, 2013

math
the price of a fax machine is marked down from $305 to $262.30. what is the rate of discount
October 3, 2013

Literature
enthusiasts.
September 28, 2013

maths
A die is thrown twice. Find the probability that the number obtained in the first throw is smaller than that in the second throw.
August 30, 2013

maths
A group of y numbers has mean x. If the numbers 3 and 5 are removed from the group, the mean of remaining(y-2) numbers remains unchanged. Find x.
August 30, 2013

Finite Math
True or false. [A ¿ (B ¾ C)]c = (A ¿ B)c ¿ (A ¿ C)c
August 3, 2013

Finite Math
True or false. P (n, r) = r! C (n, r). explain why please, thanks
August 3, 2013

english
D secondary research
August 2, 2013

Computers C++
1). After the assignment statement result = isspace('\t'); result has the value ________. 2). The data type of islower('g') is ________. 3). What will be output given the following information: float * pointer; float pay = 3.75; pointer = &pay; cout << &...
July 14, 2013

math
if i have a mix of 4oz. to 100lbs. how much would it be for 9Lbs.
April 13, 2013

math
2(n+3}<-4
January 31, 2013

chemistry
RANK THESE COMPOUNDS BY THE LENGTH OF THE CARBON-CARBON BOND
January 14, 2013

Trigonometry
rectangular form to polar form xy=12 rsinÆŸ rcosÆŸ=12 would the answer be: r^2=12/cosÆŸ sinÆŸ please show steps, Thanks
December 19, 2012

math
9/20 how do I multiply & simplity
October 24, 2012

Literature
4 feet
October 15, 2012

algebra
(1) T in terms of A is alike to Y in terms of X for linear graphs, so set it up the same way. T = (something)A + constant The constant reading is 200 miles per hour so that is your constant. T = (something)A + 200 The true airspeed is increasing by 2% or .02 of the indicated ...
September 26, 2012

Math
Use all ten digits from 0 to 9 only once. Do not use 0 in either the milions or thousandths places. What is the greatest number less than 5 million?
September 17, 2012

math
Alternate exterior angles are always ?
July 10, 2012

algebra
a – 6 = 2b a + b = 15
July 8, 2012

algebra
Solve by setting up the proper equation to describe the facts given and then carrying out the mathematical calculations to solve for the unknown variable(s). The sum of two numbers is 36. Their difference is 4. Determine the two unknown numbers.
July 7, 2012

pre algebra
solve whether the sequence is arithmetic or geometric if it is arithmetic or geometric,state the common difference or common ratio and write the next three terms of the sequence 10,18,26,34
May 3, 2012

Probability
6 sided die is rolled 8 times, how many sequence of rolles are there?
April 24, 2012

Math
45 degrees
April 12, 2012

AP Chemsitry
A solution of an unknown monoprotic weak acid was titrated with 0.100 M NaOH. The equivalence point was reached when 37.48 ML of base had been added. From a second buret, exactly 18.74 of 0.100 M HCl were added to the titration solution. The pH was then measured with a pH ...
April 1, 2012

physics
A turntable must spin at 33.7 rpm (3.53 rad/s) to play an old-fashioned vinyl record. How much torque must the motor deliver if the turntable is to reach its final angular speed in 1.5 revolutions, starting from rest? The turntable is a uniform disk of diameter 30.5 cm and ...
March 17, 2012

physics
A spinning flywheel has rotational inertia I = 401.9 kg · m2. Its angular velocity decreases from 20.5 rad/s to zero in 257.1 s due to friction. What is the frictional torque acting?
March 17, 2012

physics
You are asked to hang a uniform beam and sign using a cable that has a breaking strength of 372 N. The store owner desires that it hang out over the sidewalk as shown. The sign has a weight of 248 N and the beam's weight is 49 N. The beam's length is 1.30 m and the ...
March 17, 2012

Physics
A house painter stands 3 m above the ground on a 5.3-m-long ladder that leans against the wall at a point 4.7 m above the ground. The painter weighs 638 N and the ladder weighs 143 N. Assuming no friction between the house and the upper end of the ladder, find the force of ...
March 17, 2012

chemistry
you are given an unknown gaseous binary compound. when 10.0g of the compound isburned in excess oxygen, 16.3g of water is produced. the compound has a density 1.38 times that of oxygen gas at the same conditions of temperature and pressure. give a possible identity for the ...
December 8, 2011

chemistry
you are given an unknown gaseous binary compound. when 10.0g of the compound isburned in excess oxygen, 16.3g of water is produced. the compound has 1.38 times that of oxygen gas at the same conditions of temperature and pressure. give a possible identity for the compound.
December 8, 2011

microeconomics
Immigration is a major topic of concern in today’s economy. What are the possible problems and solutions for these concerns? What could happen to the U.S. labor markets if immigration is not controlled?
November 30, 2011

microeconomics
Many factors determine the supply and demand for labor. Identify and explain two factors that would increase or decrease the demand for labor. Identify and explain two factors that would increase or decrease the supply of labor. Use the readings and/or the internet for examples
November 30, 2011

Microeconomics
Answer the following questions based on the graph that represents J.R.'s demand for ribs per week of ribs at Judy's rib shack. a. At the equilibrium price, how many ribs would J.R. be willing to purchase? b. How much is J.R. willing to pay for 20 ribs? c. What is the ...
November 27, 2011

grammer
find italicized test
October 28, 2011

physics
You have four vectors. For each one resolve them into North and east components. Adding the North components. N= 75 + 0 + 125 sin(30) - 150 = - 12.5 m And adding the east components we get E = 0 + 250 + 125 cos(30) + 0 = 358.25 The magnitude of the result is found by ...
October 24, 2011

trig
If S is an element of [ 3pi/2 , 2pi ] what quadrant does the terminating side lie in and evaluate for sine theta
October 21, 2011

physics
25 m
October 12, 2011

Chemistry II
Liquid sodium can be used as a heat transfer fluid. It's vapor pressure is 40.0 torr @ 633 degrees C and 400.0 torr @ 823 degreees C. Calculate it's heat vaporization.
September 5, 2011

Chemistry
Write the balanced net ionic equation. Label species as solids liquids gase aqueous. HNO3(aq) + Ba(OH)2(aq) ---> I don't understand the steps? And how to balance it?
July 24, 2011

College Algebra
Sorry, the question is "A person is 66 inches tall is standing 15 feet away from a streetlight. If the person casts a shadow 84 inches long, how tall is the streetlight?"
June 24, 2011

College Algebra
If a person is 66 inches tall is standing 15 feet away from a streetlight. If the person casts a shadow 84 inches long, how tall is the streetlight?
June 24, 2011

kettering elementary school
what do you do when you have 10 or more ones
May 24, 2011

biology
why is the cell membrane important to people?
May 19, 2011

m-100
Sketch the graph of each linear function. Give the domain and range. (a) f(x) = -2x + 1 (b)f(x) = -3.
May 5, 2011

m-100
write an equation for the srtaight line that satisfies the given conditions. (a) Through (-2,-2); slope -1 (b) Through (4,2); slope 1/2.
May 5, 2011

m-100
find the slope-intercept form of the straight lines,given by the following equations: (a) -4x + 2y =4 (b) 2x = 1-4y
May 5, 2011

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