# Posts by Jen

Total # Posts: 3,525

**Help plz!! Math....**

A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20

**Physics**

A 4.3-kg block slides down an inclined plane that makes an angle of 26° with the horizontal. Starting from rest, the block slides a distance of 2.1 m in 5.1 s. Find the coefficient of kinetic friction between the block and plane.

**sentence**

I show my appreciation to my parents for all they do for me :)

**4th grade math**

add all of them and divide by how many sets there are which is 5.... 92 + 96 + 99 + 103 + 88 = 478/5 = 95.6

**Statistics**

Start with x = 100 and add four x values to make a sample of five data such that the standard deviation of these data equals 0

**Statistics**

A set of 50 data values has a mean of 15 and a variance of 25. Find the standard score of a data value = 20

**Can someone help me please? MATH**

hmmmmm i guess it is....thank u :)

**Can someone help me please? MATH**

Identify the sampling technique used to obtain this sample: Each person boarding a plane is asked to flip a coin; those showing “tails” have their luggage searched.

**Math**

interesting....thank you for your example, it definitely helped me :)

**Math**

In your own line of work, give one example of a discrete and one example of a continuous random variable, and describe why each is continuous or discrete.

**Math**

Identify the sampling technique used to obtain this sample: Each person boarding a plane is asked to flip a coin; those showing “tails” have their luggage searched.

**Chemistry**

I have no idea where to even start with this problem on my pre-lab! For part of the experiment, you will need to prepare 100 mL of 0.025 M CH3CO2H, starting from commercial "glacial" acetic acid, which has a concentration of 17.4 M. This is best done by making two ...

**Math-Stats**

An insecticide company exposes 10,000 cockroaches to its newest product, and exposes another 10,000 to their previous formula. The researchers use videotape to count how many cockroaches are still alive, and how many appear to be in distress, at 10 second intervals. When the ...

**Math**

actually i do check and actually that is another problem i posted, not this damn problem!

**Math**

Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46 How do I do this?

**Math**

A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...

**Chemistry**

Regular-strength chlorine bleach is a 5.25% solution of NaClO. how many milliliters of 0.02005 M sodium thiosulfate will be required to reach the equivalence point in the titration of a 1.000ml sample of Bleach by reacting the ClO- ions with I, then titrating the resulting I2 ...

**Math...PLEASE HELP!!!!**

A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...

**Math**

how in the world do i do this??

**Math**

Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46

**Math**

A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...

**Math-Ms. Sue or Bob**

Can either one of you help me with the math problems I asked? I really need help and do not understand how I would calculate the sample statistic and parameter population....

**MATH**

Construct a frequency distribution table to organize the following set of data: 16 23 24 23 24 20 15 16 21 15 16 19 17 15 23 16 18 19 20 19

**MATH**

I get -3 for all of those??

**MATH**

Construct a grouped frequency distribution for the following 28 scores using a class width of 4: 64 63 58 46 52 62 47 49 56 47 43 41 45 51 60 62 51 61 50 55 56 53 54 58 48 48 58 46

**MATH**

would this be right? the population parameter of interest is 45%? the value of the sample statistic is 50%??

**MATH**

I am still so confused....the population parameter of interest isn't 150? The value of the sample statistic isn't 100? I'm sorry I am so lost with Statistics...one of the hardest classes I've dealt with yet :( Please help me...

**MATH**

A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...

**algebra 2**

i need help with these questions simplify √4x^2/y^3 √2x^4/72 √18+√32 √31(√3+√27)

**Math....please help**

A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...

**Statistics-confused**

A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...

**math**

$50 + $15 + $3 = $68

**Statistics-confused**

A candidate for a political office claims that he will win the election. A poll is conducted, and 35 of 150 voters indicate that they will vote for the candidate, 100 voters indicate that they will vote for his opponent, and 15 voters are undecided. a. What is the population ...

**Statistics**

I think it's nominal correct?

**Statistics**

Classify the following variable as nominal, ordinal, discrete, or continuous and state why it is such a variable: number of US Senators

**Statistics**

Thank you.

**Statistics**

Yes....so it would be observational correct?

**Statistics**

Describe whether the following study would most likely be “observational” or “experimental”, and why it would be so. * Mystery shoppers monitor the preferences at a shopping mall

**nursing**

What are some processes for applying nurse-sensitive performance reviews and quality indicators? How can these processes be best implemented? What is their effect on nursing research and practice?

**english**

can you help me classify this sentence: The two blue birds trill merrily each morning. What would (each morning) be?

**english**

Can you help me with this sentence The two blue birds trill merrily each morning. article adj.-the adj-two adj-blue noun-birds verb-trill adv-merrily prep-each object of prep-morning is this right?

**english**

prep-on article adj- the object of the prep-swings adv.-during adv- recess

**english**

please help classify each word in this sentence: Several children played on the swings during recess.

**nursing**

How would you prevent misconduct in any reserach study

**math**

20 cm

**accounting**

How do write this as a journal entry transaction? Alex transferred $17,000 from his personal bank account to the corporation in exchange for capital stock.

**Physics**

I know a steady force produces a steadily increasing velocity and a constant acceleration. But what happens when you increase the force by doubling or tripling it? I think the acceleration would follow force changes but what about velocity?

**math**

x^(2ln(x)-1) +e^1/9=(1+e^1/9) *x^(ln9x)-0.5)

**statistics**

12.27 A study has been carried out to compare the United Way contributions made by clerical workers from three local corporations. A sample of clerical workers has been randomly selected from each firm, and the dollar amounts of their contributions are as follows. (Use data ...

**Physics**

A car accelerates from 0 to 60 miles per hour in 6.5 seconds. Determine the distance traveled in this time and the acceleration. Assume constant acceleration.

**Science**

If a block is 12cm wide, 7cm long and 9 cm then how much of the block will be below the surfaceof the water if the block weights 500 grams?

**math**

six cars are parked in front of a car dealership. If you are looking at the cars from the front. the red car is parked in front of the green car. the black car is between the green and the yellow car. The blue car is parked on the right side of the red car. the orange car is ...

**Math**

For the limit lim x → 3 (x3 − 2x + 5) = 26 illustrate the definition by finding the largest possible values of δ that correspond to ε = 0.2 and ε = 0.1. (Round your answers to four decimal places.)

**Physics**

Now would that also be the same visual for an observer? Or would it seem to them like the it's curving and fall on the rider?

**Physics**

I have a projectile motion question. If let's say a cannon which was placed on a moving cart with negligible friction projects a cannonball straight up in the air where will it fall? Would it be behind the cannon, on the rider or fall straight down back into the cannon? ...

**4th grade math**

what are the 3 different ways to make the number 15, 638? with only hundreds, tens and ones?

**english**

identify the details in the story that contribute to a sense of reality and explain how these details make the story plausible.

**english**

score/ score presents a fictional world, regulated by computers and other machines in which humans are noticeably absent. Though the main characters are actually two computers that converse, the story contains several details that create verismilitude. Because computers are ...

**Literacy**

Please check my work. Thank you. 1. Which of the following is the most direct tool to find books owned by a library you are visiting? A. W i k i p e d i a B. Search engines like G o o g l e or Y a h o o C. Catalog D. Periodical database Answer #1 is B 2. Which of the following...

**Literacy**

Thank you very much.

**Literacy**

Question # 1. The web page showing 1,398,414 building permits for 2007, but none of the choice showing that figure.

**Literacy**

Please check my work. Thank you. 1. According to FedStats, what was the number of building permit in 2007? A. 61,617 B. 54,059 C. 496,686 D. 1,500,173 Answer #1 is D. 2. Which of the following is a primary source? A. Newspaper article published in the 1980s that reports on an ...

**math (please help me)**

How do I solve for T? PI(67.2/2)^2*T*13.6g/cm^3= 5lb*435.6g

**Chemistry**

In Millikan's experiment, the charge on each drop of oil was measured in coulombs. Imagine the same experiment, but with charges measured in a fictitious unit called a zeet (). Drop Charge () A 1.38×10−14 B 3.22×10−14 C 3.68×10−14 D 4.14...

**College Math**

5x3=15 15/52 4/52= 1/13 2/52= 1/26

**Literacy**

I’m confused. Are you saying that none of the choice is correct?

**Literacy**

I will go with “B” and get back to you when I get back the results. Thank you very much.

**Literacy**

Why the question mark on # 5?

**Literacy**

Please check my work, thank you. Question 1 – 4: Access the Library of Congress library Catalog. Then, find the information to answer the question. 1. What year was the oldest copy of Ralph Ellison’s Going to the Territory published? A. 1952 B. 1986 C. 1987 D. 1995 ...

**Math**

The measure of the supplement of an angle is 3 less than four times the measure ofthe comloment of the same angle

**AP chem**

Is it 84.8%?

**AP chem**

A 1.25-g sample contains some of the very reactive compound Al(C6H5)3. On treating the compound with aqueous HCl, 0.951 g of C6H6 is obtained. Al(C6H5)3(s) + 3HCl(aq) --> AlCl3(aq) + 3C6H6(l) Assuming that Al(C6H5)3 was converted completely to products, what is the weight ...

**AP Chemistry**

The formulas for ethanol and ammonium nitrate are C2H5OH and NH4NO3. In what respects are these formulas and compounds different? Am I supposed to say that there are different elements that make up the compounds?

**algebra**

The equation y=-1777x+27153 can be used to predict the number y of gun deaths in the united states x years after 2000, that is, x=0 corresponds to 2000 x=3 corresponds to 2003, x=4 corresponds to 2004, and so on. Predict the number of deaths in 2004 and 2009. In what year will...

**English**

Sorry Ms Sue, I would like to know if success comes form work hard or smart work? I think the statement is not actually true Sucess comes form smart work.

**English**

Success comes from hard work. (I will say “NO” to the statement above) Success comes from smart work.

**Literacy 4**

Thank u Ms Sue

**Literacy 4**

Please check my work. Thank you. 1. Government documents in a library are classified according to which of the following schemes? A. Superintendent of Documents B. Government Printing Office C. Dewe Decimal D. Library Of Congress Answer #1 is A 2. You're using the ...

**Literacy**

Thank u.

**Literacy**

Miss Sue please review Literacy question #2, on Aug 23, 2011 @ 6:04pm. I believed I made a mistake, the correct answer is C not B. 2. The Altas of World Religion is an example of which of the following reference sources? A. Historical atlas B. Subject-specific atlas C. General...

**Literacy 3**

Answer for # 8 is A Thank u Mis Sue.

**Literacy 3**

Please Check my work. Thank you. 6. To avoid plagiarism in you written research paper, you must provide a citation for which of the following? A. The United Nations ruling on the Soviet-bloc countries B. The date the berlin Wall was pulled down by a crowd in Germany C. ...

**Literacy 2**

Thank u Ms Sue. 22. Which of the following would be the best way to get to a list of encyclopedias that are available on the Web? A. Search the library catalog. B. Search a periodical database. C. Visit the Internet Public Library. D. Look at the Library of Congress Web site. ...

**Literacy 2**

Please check my work. Thank YOU! 10. Which article would be the most appropriate source to include in a bibliography for a research paper on stem cells? A. Lemonick, Michael D., David bjerklie, Andrew Goldstein. “keeper of the stem Cells. “Time 27 Aug 2001: 57 B. ...

**Literacy**

Thank you Ms Sue.

**Literacy**

Please check my work. Thank YOU! 1. Journals differ from magazines in that they’re A. Printed with volume numbers. B. Published only periodically. C. Available by subscription. D. Sources of academic research not intend for the general publish. ANSWER #1 is D 2. The Atlas...

**trigonometry**

A television antenna is on the roof of a building, the angle of elevation of the top and the button of the antenna are 51 degrees and 42 degrees respectively.How tall is the antenna?

**trigonometry**

yes it is the lenght of the shadow.that is the problem that my professor gave me.

**trigonometry**

how tall is a tree if it costs a shadow 59 degrees 24 minutes 41 inches on the ground 40 meter?

**statistics**

5.20 There are 100 males and 120 females in the graduating class of a local high school. Thirty-five percent of the graduating males are on school sports teams, as are 30% of the graduating females. A local businessperson is going to donate $1000 to the favorite charity of a ...

**trig**

how do you find all the values of theta from 0 degrees through 360 degrees for which sin theta equals 0

**Math**

Hi. So we had a long test with this question.. I was wondering how to solve it? Coz our teacher didn't discuss the answers.. and most probably we'll have the same type of question during midterms.. Find the Solution Set 9/|2-5x| - 4/y^2-3y = 5 2/|2-5x| + 2/ 3(y^2-3y...

**statistics**

1. In a Gallup poll of 2,040 adults, 956 said that second-hand smoke is very harmful. What is the percentage of adults who said second-hand smoke is very harmful?

**Math**

great! thanks :)

**Math**

thanks Ms. Sue, i just wanted to be sure i did it correctly...but either way is correct right??

**Math**

Given the bar graph below, create a grouped frequency distribution: Hours per week: 0 1 2 3 Mike 4 5 Don 6 Daniel 7 Jake, Greg 8 Asad 9 Sandra 10 Drake 11 12 Andrea 13 This is what i got, please tell me if i did this correctly :) Hours per week # of persons 3 1 5 1 6 1 7 2 8 1...

**math**

I am not sure what you're talking about.

**math**

find the center and radius of a circle given the equation in general form x^2+y^2+4x-6y+2=0. center: ? radius: ?

**Math**

Given the bar graph below, create a grouped frequency distribution: Hours per week: 0 1 2 3 Mike 4 5 Don 6 Daniel 7 Jake, Greg 8 Asad 9 Sandra 10 Drake 11 12 Andrea 13 This is what i got, please tell me if i did this correctly :) Hours per week # of persons 3 1 5 1 6 1 7 2 8 1...

**MATH**

but i have to submit it online....