Tuesday
October 21, 2014

Posts by kim


Total # Posts: 2,123

Math
The sum of two numbers is 30. The first number is 1/5 the second number. What are the numbers
February 11, 2014

science
A ball weighing 1.78 N is shot through a launcher,achieving a speed (from rest) of 41 m/s in 0.28s. What is the mass of the ball.
February 3, 2014

math
Seven students took a quiz. Four of these students received a score above 85 percent. Students who received at least an 85 percent got a sticker. What percent of the students (rounded to the nearest full percentage number) received a sticker?
January 21, 2014

math
51.A sequence t is defined where the first term is –4. Each successive term is 3 more than the term before it. (a)Write an explicit formula for the sequence t. (b)A second function is defined as s(n) = 2 + 2n. Compare the rates of change of t(n) and s(n). (c)For what ...
January 2, 2014

Algebra 1B
The polynomial given by 1.6t^ 2 - 28t + 200 calculates the heart rate, where t represents the elapsed time in minutes since exercise stopped. 1. What is the heart rate when the athlete first stops exercising? 2. What is the heart rate after 5 minutes? 3. Describe what happens ...
December 22, 2013

chemistry
thanks KS, 31 is A
December 19, 2013

Ratio--math
what is 14/J= 42/12
December 18, 2013

Algebra 1B
3x^²-12x+4 for x=-2 What are the exact steps when getting an answer?
December 18, 2013

5th grade math
Thanks
December 15, 2013

5th grade math
Is the correct answer 27?
December 15, 2013

5th grade math
To nearest whole number, what is 106.37 - 78.89? Can you show me please?
December 15, 2013

5th grade math
Rounded to the nearest tenth, what is the sum of 47.368 + 58.75?
December 15, 2013

Math
I'm having trouble with working a problem out and need to see how to solve. The question reads as follow: Mark has 24 baseball cards. He says that 8/24 are pitchers, 5/24 are catchers, and the rest are fielders. What fraction below represents the difference between the ...
December 9, 2013

algebra
Thank you, Jai!
December 7, 2013

algebra
For a motor vehicle travelling at r miles per hour, the distance d in feet required to stop at approximately d=0.05r^2+r. If a school bus is traveling at 45mph how many feet to, the nearest foot,would it travel before coming to a halt.
December 7, 2013

math
The probability of not picking a purple marble out of a bag of marbles is 2/5, if 2 purple marbles are taken out of the bag, reducing the number of purple marbles to 4, what will the new probability of picking a purple marble be?
December 6, 2013

math
The length of a rectangle is three times its width. If the area of the rectangle is 48, what is its length?
December 6, 2013

poetry
What mood best describes "Elegy Written in a Country Churchyard"?
December 5, 2013

Math :)
1.Try to solve this problem without using a formula. Suppose a disease is transmitted from an individual to one other during the period of a week. Each of those two gives the disease to two more people in the second week, so that the total of newly infected people is now four...
December 2, 2013

statistics
whether it is one-tailed or two tailed? and if one tailed...I do agree with you now that this is the left tail test. However I am not sure how to handle negative value on t. Here is what I did. I used formula for hypothesis test with mu unknow, t=(xbar-mu)/(sd/sqr n)=(26-25.02...
November 30, 2013

statistics
what test are you using? This is very confusing!
November 30, 2013

statistics
Ala rge fleet of cars is maintained with an average of 26 mpg. 50 recent trips displayed a mean of 25.02 mpg and standard deviation of 4.1 mpg. At the 5% level of significance, is their evidence the company has failed to keep their fuel goals? I did the math and got .03380315...
November 30, 2013

Statistics
Thank you, I got the same answer, but I thought that because the sample size was less than 30, there was something I missed.
November 29, 2013

Statistics
Hello, my problem is I have a random sample of only 15 sales average is $115 with a known population standard deviation of $25.00. Obtain a 92% confidence interval and explain what your answer means. I am not sure what to do because the sample size is only 15. Thanks for your ...
November 29, 2013

Finance
Buy a stock for $35 a share, hold it for 3 years, and then sell it for $75 a share (the stock pays annual dividends of $2 a share).
November 24, 2013

Math
1. Jill has a bond with a face value of $1,000. The bond has a coupon rate of 6%. Find her current yield if the market price of the bond is $1,027. 2. Calculate the annual interest you receive on a $1000 Treasury bond with a current yield of 1.5% that is quoted at 98 points. I...
November 18, 2013

chemisty
When magnesium metal and an aqueous solution of hydrochloric acid combine, they produce an aqueous solution of magnesium chloride and hydrogen gas. Using the equation, Mg (s) + 2HCl (aq) MgCl2 (aq) + H2 (g), if 24.3 g of Mg and 75.0 g of HCl are allowed to react, calculate the...
November 17, 2013

Math Help
Wow it's a shame that I can't get help:(
November 16, 2013

Math Help
Does anyone know about this? This is really hard and I'm in lots of need:)
November 16, 2013

Math Help
This homework question was removed due to a copyright claim submitted by the National Network of Digital Schools Management Foundation (NNDS). Please answer this ASAP! Thank you so much whoever answers! :)
November 16, 2013

physics
a toy rocket is fired upward with a net force of 50N. Because of this force it accelerates at 25m/s^2. What is the mass of the rocket?
November 16, 2013

Math
1. You need $200,000 to retire in 10 years. You can invest monthly amounts at 5% APR at work. How much should you contribute each month? 2. A friend creates an IRA with an APR of 6.25%. She starts at age 25 and deposits $50 per month. a) How much will her IRA contain when she ...
November 14, 2013

Calculus
A ladder 15 feet long leans against a vertical wall. Supppose that when the bottom of the ladder is x feet from the wall, the bottom is being pushed towards the wall at the rate of 1/2x feet per second. How fast is the top of the ladder rising at the moment the top is 5 feet ...
November 11, 2013

MATH MATH MATH
Mortgage lenders base the mortgage interest rate they offer you on your credit rating. This makes it financially critical to maintain a credit score of 700 or higher. How much more interest would you pay on a $195,000 home if you put 20% down and financed the remaining with a ...
November 9, 2013

Physics
Identical twins, each with mass 51.0 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B. Neglecting any gravity effects, what are the subsequent...
November 8, 2013

Physics
Identical twins, each with mass 51.0 kg, are on ice skates and at rest on a frozen lake, which may be taken as frictionless. Twin A is carrying a backpack of mass 12.0 kg. She throws it horizontally at 3.00 m/s to Twin B. Neglecting any gravity effects, what are the subsequent...
November 8, 2013

Math
Assume that the mean salary for a profession is $35,104 with a standard deviation of $3200. What percent of the profession earns less than $38,700? I dont understand how to do this. Please help!!
November 7, 2013

Math
Given 15 data items: 11, 15, 13, 16, 8, 8, 9, 10, 11, 4, 9, 6, 8, 3, 17 Calculate the: range variance standard deviation first quartile second quartile (median) third quartile My answers are: 1. Range :14 2. Variance: 15.7 3. 3.96 4. 8 5. 9 6. 13 I just want someone to check ...
November 5, 2013

Math
Find the mean, median, and mode of the following: 11, 15, 13, 16, 8, 8, 9, 10, 11, 4, 9, 6, 8, 3, 17 I got.. Median=9 , Mode= 8 I am confused about the mean I got 9.8666666 ...Do I need to round this to 9.8 or 9.9 or 10 ?? Thanks for the help
November 5, 2013

Statistics
True 1. CORRELATION Correlation means that two variables (sets of data) have some type of association with each other, such that as one variable increases, the other also increases (a positive correlation), or decreases (a negative correlation).
November 5, 2013

Health
Reduces stress,lowers blood pressure
November 5, 2013

physics
A person drives a car around a circular cloverleaf with a radius of 63 m at a uniform speed of 10 m/s. (a) What is the acceleration of the car?
November 4, 2013

Math
4(7-y)= (4 x 3k) + (4 x 4)= 6(2 + 4x)= (5 x a) + (5 x 2)=
October 29, 2013

Math
Write an expression for the word phrase. r divided by 2
October 24, 2013

math
If I am in a canoe race and my friend is a half mile ahead of me, if I paddle at 3.4 miles per hour and he paddles at 3miles per hour, when will i catch him?
October 22, 2013

French
The word is nusiditaco and I need it unscrambled
October 19, 2013

english
b for quesstion#7
October 11, 2013

algebra
can some one tell me the simplified cube radical form of (64x^3y^7)^1/3
October 9, 2013

math
Round 9.46531 to nearest hundredth.
October 9, 2013

Business Statistics
Using the telephone numbers listed in your local directory as your population, randomly obtain 20 samples of size 3. From each telephone number identified as a source, take the fourth, fifth, and sixth digits. Calculate the mean of the 20 samples Draw a histogram showing the ...
October 8, 2013

math
Round 9.46531 to nearest hundredth.
October 7, 2013

math
what is m4 (m to the 4th power)
October 7, 2013

poetry
I need help with the last question for this as well. Also i am confused about the mood and tone of the poem. I thought that the tone was calm and passive can the mood be the same thing?
October 7, 2013

Math
A customer needs 88 ,2 inch pipe connectors to Complete a project. How many Bags of connectors would you recommend the customer purchase if each bag includes 25 connectors
October 1, 2013

Math
A customer needs 88 ,2 inch pipe connectors to Complete a project. How many Bags of connectors would you recommend the customer purchase if each bag includes 25 connectors
October 1, 2013

chemistry
Identify the neutral element represented by this excited-state electron configuration, then write the ground-state electron configuration for that element. Excited State: 1s2 2s2 2p2 3s1 Element Symbol: ? Ground State: ?
September 30, 2013

Chemistry
Some bacteria get their energy from reduction of CO2 to CH4 by H2. 1. How many electrons are required to reduce CO2 to CH4? 2. Calculate the G for formation of methane based on the two standard reduction potential of -0.171V for reduction of CO2 to CH4 and -0.414V for ...
September 29, 2013

EDU 490 Interdisciplinary Capstone
Shelby teaches 9th grade Social Studies at a small high school in the rural plains of Kansas. Most of her students are farm kids who will end up working their parents’ farms for the duration of their time in Kansas. In order to make use of the abundant knowledge related ...
September 23, 2013

psy202
SO I THINK IT WOULD BE A
September 17, 2013

psy202
i thing it is b
September 17, 2013

psy202
which of the following do experts recommend regarding the search for information on the internet avoid boolean operators since new technology has made them obsolete stick to one search engine like google so that bookmarks are better organized bookmark any site that has ...
September 17, 2013

psy202
according to your text research on adult think and behavior has found that specific child-rearing practices of parents have great influence how parents feel about their children has great influence development is predictable when all children are treated the same all of the ...
September 17, 2013

Math
Find the distance between ordered pairs: (-6,10) and (-2,10)
September 16, 2013

math
Jessica and her seven friends share 3 liters of apple juice equally. How much juice does each friend get.
September 10, 2013

english
A common solecism is a=I don't need any b=I don't got none c=I don't have any d=I don't want it
September 9, 2013

english
A common solecism is a=i dont need any b=i dont get any c=i dont want it
September 8, 2013

Math
Arturo Muina is the captain of a charter fishing boat. He is paid a salary of $140 per day. He also averages tips amounting to 12% of a $475 daily charter rate. Last month during a fishing tournament, Arturo worked 22 days. What were his total gross earnings for the month?
September 6, 2013

Macroeconomics
Dave is buying pizza and soda. Suppose that a slice of pizza and a can of soda each cost $4 Let E be the amount in dollars that Dave spends on pizza and soda. If Dave buys P slices and S cans of soda, which one of the following equations correctly describes the amount of money...
September 5, 2013

Medical
Sorry about that, that was part of the question which relates to this question; As a health care administrator, how important is having the ability to read medical charts and reports? Why can abbreviations in charts be a cause of concern? How would you ensure that your staff ...
September 3, 2013

Medical
As a healthcare administrator, the ability to read medical charts and reports is very important. It assists you in understanding the details on each patient's medical reports. [ By understanding this, you will be able to come up with strategies of organizing medical ...
September 3, 2013

math
what is the portion if the base is 900 and the rate is 12 3/4%
September 2, 2013

algebra
i came up with B
August 30, 2013

algebra
paul charges $2.25 per week for daily plus sunday delivey, and $1.00 per week for sunday deliver only a:40[$2.25)+25($1.00) b:40($1.00)+25($2.25) C:40($1.25)+25($2.25) D:65($2.25)
August 30, 2013

MATH
You have a bag of marbles containing 13 red marbles, 8 green marbles, 7 yellow marbles, and 7 blue marbles. What is the probability of drawing a green marble, putting the marble in your pocket and then drawing a yellow marble?
August 29, 2013

Math
Can anyone solve 4/3=2/15j?
August 27, 2013

statistic
The random variable x represents the number of boys in a family with three children. Assuming that births of boys and girls are equally likely, find the mean and standard deviation for the random variable x.
August 20, 2013

PM
What is a home builders sample work package
August 15, 2013

math
How a write 3,552,308,725 in word form
August 14, 2013

Statistics
A box contains 10 items, of which 3 are defective and 7 are non-defective. Two items are randomly selected, one at a time, with replacement, and x is the number of defective items in the sample. To look up the probability of a defective item being drawn from the box, using a ...
August 8, 2013

PM
J. Wold. project manager of the Print Software, Inc., wants you to prepare a project network; compute the early, late, and slack activity times; determine the planned project duration; and identify the critical path. His assistant has collected the following information for ...
August 7, 2013

PM
You are creating a customer database for Modesto Nuts minor league baseball team. Draw a project network given the information below. Complete the forward and backward pass, compute activity slack, and identify the critical path. How long will this project take? How sensitive ...
August 1, 2013

Algebra
Is the cube root of -1/1000 q^36 -1/10q^12? Am I right?
July 15, 2013

Algebra
True or False. 1. If q is negative, then the square root of q^2 = q. 2. If r is positive, then the square root of r^2 = -r.
July 14, 2013

Algebra
Simplify ..... 1. the square root of the cube root of 49a^2z^4 2. the fourth root of (d-3e)^2 3. the square root of the the square root of 16b^12c^4
July 14, 2013

math
1. The greater of two integers is 4 times the lesser. Of the lesser integer is increased by 12, the result is 3 less than the greater.Find the integers. 2. Tom is three times as old as Leigh Ann. In 7 years, the sum of half of Tom's present age and a third of Leigh Ann'...
July 14, 2013

Algebra
1. what is the 6th root of 8j^6k^3m^3n? 2. What is the fourth root of 4f^2g^2?
July 14, 2013

Chem
I was asked to list materials with different structures and exhibit different properties. I thought of water and salt, muriatic acid and laughing gas. Am I correct? I need two more. Please help.
July 12, 2013

Chem
What does it mean when they say materials with the same properties but with different chemical composition? Can you give examples so that I can fully understand?
July 12, 2013

Law and Ethics in medicine
my answer A Which of the following should you not when correcting record. A. Obliterate the error B. Date the correction C. Have the correction witnessed and initialed D. Explain why the correction is being made My answer A 4. Which of the following is true regarding consent ...
July 11, 2013

Law and Ethics in medicine
Elizabeth says duty of care is the obligation health care workers have toward patients. Randy says professional etiquette is the obligation health care workers have toward patients. Who is correct? A. Only Randy is correct B. Neither is correct C. Only Elizabeth is correct D. ...
July 11, 2013

Algebra
Simplify the square root of of the fifth root of 64q^8v^6 or (√^5√64q^8v^6).
July 11, 2013

MUSIC
What is meant by Caribbean music in a new mode What emphasis, in this chapter, seems to justify a departure from traditional presentations of music and culture of the Caribbean?
July 9, 2013

Algebra 1A
What are some suggestions for new students starting a math class? Creating a list of three to five important requirements.
July 8, 2013

medical coding
While running, a 10-year-old boy began choking on a small latex ballon and was rushed from the amusement park to the emergency deparmtent. The balloon is lodged in the trachea just past the larynx and threatening to obstruct her breathing. The piece of latex balloon is ...
July 7, 2013

Algebra 1A
I am trying to simplify the factors -7/-6 in the problem -7k^7 m^7/ -6k^8 m^9. What is the correct answer? So far I have -7/-6km^2 my only problem tends to be simplifying -7/-6km^2
July 6, 2013

Health care
1. Wrongful death statutes create a right to collect damages for A. loss to the patient's estate of future earnings. B. loss to familial quality of life. C. punitive damages D. pain and suffering of the patient. My answer A 2. Elizabeth says duty of care is the obligation ...
July 5, 2013

Algebra 1A
Thanks Reiny,that is my only problem trying to figure out the equation. I just cannot figure out for some reason when getting the intersection, I tried several different ways yet my progress is still the same.
July 3, 2013

Algebra 1A
When graphing the inequalities 9x+8y<72 and -7x-4y<=28 what would be the solution set? Also what would be thier intersection?
July 3, 2013

math
The student in Question 5 from Module 18 decides to conduct the same study using a within-participants design in order to control for differences in cognitive ability. He selects a random sample of participants and has them study different material of equal difficulty in both ...
June 29, 2013

Algebra 1A
What do you do to graph (and shade) a system that does overlap?
June 27, 2013

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