Tuesday
October 21, 2014

Posts by Kathryn


Total # Posts: 150

Statistics
use the stem-and leaf plot below to answer questions 11-13. Assume that 30/0=300 30/0 31/2 2 32/1 5 33/0 3 6 34/4 5 7 8 35/1 1 2 9 How many numbers are in the original data set? 6 16 22 9 What is the largest number in the data set? 9 22 35 359 If this data were put into a bar ...
August 26, 2014

Statistics
If a pie chart was created using the data from the table above, which selection of the chart would be the largest? the smallest? indicate the relative frequency amount as a decimal for both
August 19, 2014

Statistics
suppose 60 people are asked which method is best to avoid getting the flu. the results are shown in the table below. determine the percentage for each method and complete the table. round to the nearest whole number. Method Frequency % Flu shot 15 washing hands 36 taking ...
August 19, 2014

Stats
1.Number of people in attendance at a baseball game qualitative/ordinal qualitative/nominal quantitative/discrete quantitative/continuous 2. number of tracks on a CD qualitative/ordinal qualitative/nominal quantitative/discrete quantitative/continuous 3.eye color qualitative/...
August 11, 2014

Algebra
write the equation of the circle passes through the point (√5,0) and whose center is the origin
May 21, 2014

Math
identify the center and radius of the circle with the equation (x+5)^2+(y-2)^2=9 A. this equation represents a circle with center (5,-2) and a radius of 3 units B. This equation represents a circle with center (-5,2) and a radius of 3 units C. this equation represents a circle...
May 21, 2014

Math
identify the center and radius of the circle with the equation (x+5)^2+(y-2)^2=9 A. this equation represents a circle with center (5,-2) and a radius of 3 units B. This equation represents a circle with center (-5,2) and a radius of 3 units C. this equation represents a circle...
May 21, 2014

algebra
Which cosine function has maximum of -2, and a period of 2pi/3
May 19, 2014

Algebra
hahaha yes, yes i do its a problem for me(:
May 19, 2014

Algebra
the table shows the results of a survey of college students. find the probability that a student's first class of the day is a humanities class, given the student is female. First class of the day for college students male female humanities 70 80 science 50 80 other 60 70
May 19, 2014

math help
14x-3y+2z=100 -17x+8y+10z=11 -3x+13y+29z=81
May 19, 2014

Algebra 2
A beam rests against a wall, forming a 50 degree with the floor. Use the function y=9 sec 0 to find the length of the beam to the nearest tenth of a foot. choice: 14.0ft, 11.ft7, 5.8ft, 6.9ft
May 19, 2014

Math
dartboard is 16 inches and bulls eye is 6 inches
May 19, 2014

Math
Garrett throws a dart at a circular dart board. The dart board has a radius, and the bull's eye in the center of the dart board has a radius of 6 inches. What is the probability that a dart thrown at random within the dartboard will hit the bull's eye? Round your ...
May 19, 2014

5th grade Math
Sorry did not mean to post this question again! Steve answered it for me earlier. Thank you Steve for you answer!
December 3, 2013

5th grade Math
Dr. Gallo's waiting room has a total of 18 magazines, including 3 fashion magazines. There are 5 more cooking magazines than there are decorating magazines. How many decorating magazines are there? You can use cubes to act out the problem.
December 3, 2013

5th grade Math
Dr. Gallo's waiting room has a total of 18 magazines, including 3 fashion magazines. There are 5 more cooking magazines than there are decorating magazines. How many decorating magazines are there? You can use cubes to act out the problem.
December 3, 2013

Statistics
You are a real estate agent and you are trying to predict home prices for your clients that want to list their house for sale. You have a very small city without much data. You will need to use the data that you have available for the past year on homes that have been sold. ...
June 2, 2013

Statistics
Calculate the residuals using the following info: number of people:12,14,15,18,20,16,14,13,18,19,20,22 and cost of drinks:24,30,36,38,65,44,36,30,39,76,80,85
June 2, 2013

Statistics
You are a real estate agent and you are trying to predict home prices for your clients that want to list their house for sale. You have a very small city without much data. You will need to use the data that you have available for the past year on homes that have been sold. ...
May 30, 2013

Statistics
Calculate a linear regression, the residuals, and the correlation between two variables using the following info: number of people:12,14,15,18,20,16,14,13,18,19,20,22 and cost of drinks:24,30,36,38,65,44,36,30,39,76,80,85
May 30, 2013

statistics
Estimate the tenure of someone that could have $5.8($k) and 15 years of job satisfaction. Make sure to state your multiple regression equation in your example. What are some of things that you can estimate from the model? How effective is evaluating the R-squared of the model...
May 30, 2013

Physics
what force can cause the displacement of an object but does no work??
April 25, 2013

math
1. Ms.lynch has 21 coins in nickels and dimes. Their total value is $1.65. How many of each coin does she have? 2. A vending machine that takes only dimes and quarters contains 30 coins, with a total value of $4.20. How many of each coin are there?
April 20, 2013

math
the larger of 2 #s is 5 less than twice the smaller. their sum is 43. find the #s
April 20, 2013

math
The second of two numbers is 7 times the first. Their sum is 72. Find the numbers.
April 20, 2013

physics
A truck of mass 8,000kg is traveling along a level road at an initial speed of 25m/s. The driver then shifts into neutral so that the truck is coasting, and the truck gradually slows to a final speed of 13m/s.
April 8, 2013

math check my answers
squared= ^2
April 3, 2013

math check my answers
1. 2(x+3)squared-6x+5=0 Answer= 2xsquared+6x+23=0 2. 3xsquared-6x+5=-2(x+1)-10 Answer= 3xsquared-4x+17=0 How would I solve from this point?
April 3, 2013

math
if 30apples = $47 then 1 apple = x cross mutilpy and you get 30x=$47 divide each side by 30 x=1.56666666 rounded to $1.57 per apple.
January 18, 2013

Writing
i wrote about my school's dances (7th grade dances). It was be in the yearbook.
January 18, 2013

Writing
What are some ideas for a title of an article on dances at school?
January 18, 2013

math (algerba 1) Please help!
x+y=0 3x+y=-4 Sovle each system of equation by graphing. If got the answer (-3,3), but it's not there. Please explain!
January 16, 2013

Physics
Calculate the total heat content of 10 kg of ice at -23°C. (Hint: absolute zero is -273°C.) Be mindful of significant figure rules for both multiplication and addition.
December 10, 2012

Physicis
How much energy is needed to heat and melt 3.0 kg of copper initially at 83°C? Be mindful of significant figure rules for both multiplication and addition
December 10, 2012

Physics
A 6.00 Kg box is sliding across the horizontal floor of an elevator. The coefficient of kinetic friction between the box and the floor is 0.360. Determine the kinetic frictional force that acts on the box when the elevator (a) is stationary (b) accelerating upward with an ...
November 7, 2012

Physics
If the 50.0 kg boy were in a spacecraft 5R from the center of the earth, what would his weight be? (Use the 50.0 kg boy for significant figures) i got 20N again not sure.. it dosnt tell me if i got them wrong or right online classes are horrible and very confusing
November 7, 2012

physics
If an object is dropped from a tall building and hits the ground 3.0 s. later, what is the magnitude of the object's displacement in 1.0 s.; in 2.0 s.? for 1.0s i got 9.8 for 2.0s i got 20. is this correct?
November 7, 2012

physics
If an object is dropped from a tall building and hits the ground 3.0 s later, what is the velocity of the object when it hits the ground? (Remember that the velocity is downward) i got -29m/s is this correct?
November 7, 2012

physics
If an object is thrown up at an initial velocity of 9.8 m/s, what would be the magnitude of the final velocity upon impact with the ground? im doing an online class and i dont have a book so if you could explain some of the question that would be great thanks so much
November 7, 2012

physics
If an object is thrown up at an initial velocity of 9.8 m/s, what would be the magnitude of the final velocity upon impact with the ground? im doing an online class and i dont have a book so if you could explain some of the question that would be great thanks so much
November 7, 2012

physics
If an object is dropped from a tall building and hits the ground 3.0 s later, how tall is the building?
November 7, 2012

chemistry
I have a worksheet that has a question on it the question states: How much iron can be recovered from 25.0 g of Fe2O3 and that is all i have i have just started in the middle of this class can i have an explanation of how to get to the answer please?
October 26, 2012

math
Write a number with 8 more in the tens place (The number is 498,763.14)
October 26, 2012

Math
Ok I have it! 40 divided by 8 = 5 x 6 = 30 Roses
October 1, 2012

Math
Bunches of 6 roses were selling for $8. Anita paid $40 for roses. How many roses did she buy? PLEASE HELP!
October 1, 2012

Trig
Prove cos^2t+4cost+4/cost+2=2sect+1/sect
March 5, 2012

Trig
A ship leaves port with a bearing of S 40 W. After traveling 7 miles, the ship turns 90 degrees on a bearing of N 50 W for 11 miles. At that time, what is the bearing of the ship from port?
March 5, 2012

Trig
prove sin(α+β)sin(α-β)=cos^2β-cos^2α
March 5, 2012

chemistry
I realize this, but I don't understand how to get k1 and k2 in the first question or the second. Also it only gives one temperature in the first question so would t1 and t2 be the same?
March 5, 2012

chemistry
I have two questions that I really don't understand. The first one is: A reaction proceeds with delta H=-10kJ/mol. The energy of activation of the uncatalyzed reaction is 150kJ/mol, whereas it is 100kJ/mol for the uncatalyzed reaction. How many times faster is the ...
March 5, 2012

writing
Socrates' role in the discussion is to derive an accurate definition of justice by using counterexamples against Thrasymachus' multiple renditions. Thrasymachus makes it easy for Socrates to prove him wrong because he is too quick to offer his definitions of justice ...
March 3, 2012

writing
Throughout the discussion with Socrates, Thrasymachus jumps to conclusions about what the definition of justice really is and does not consider the implications that he is making. This makes it easy for Socrates to shed light on the flaws in Thrasymachus' definitions and ...
March 3, 2012

writing
also, that he doesn't consider what his definitions really mean before he says them otherwise socrates wouldn't be able to prove him wrong as quick
March 3, 2012

writing
my stance is that he gives his opinion too quick.
March 3, 2012

writing
Ok here is a new one. I tried to follow all five of the tips. On multiple occasions, Thrasymachus is too quick to offer his definitions of justice and does not consider the implications that they put on society but Socrates is present to shed light on the weaknesses in ...
March 3, 2012

writing
*philosophers, sorry for mistake
March 3, 2012

writing
I need help writing a thesis statement for my philosophy paper. The paper is about two philosopher's, Thrasymachus and Socrates. Essentially the paper is about the multiple definitions of justice that Thrasymachus throws out and how Socrates proves them wrong and points ...
March 3, 2012

AP Chem. 3
A 1.80 g sample of a large boimolecule was dissolved in 21.0 g of carbon tetrachloride. The boiling point of this solution was determined to be 77.85°C. Calculate the molar mass of the biomolecule. For carbon tetrachloride, the boiling point constant is 5.03°C·...
January 30, 2012

Prob and Stats
If X is a random variable with distribution X~N(350,110) find (a)P(X<400) and b)P(250<X<400)
October 4, 2011

statistics
If a large number of people guess randomly on each of 100 items on a true-false test, the mean would be expected to be ì=___*, and ó=__*. • What % of the examinees would be expected to get a score of 65 or >?
October 4, 2011

spanish
Please translate these words into a sentence. bebur, manuel, debe, aqua
September 16, 2011

Physics
You ride your bicycle down a hill, maintaining a constant speed the entire time. 1. As you ride, does the gravitational potential energy of the Earth-bike-rider system increase, decrease, or stay the same? 2. Does the kinetic energy of you and your bike increase, decrease, or ...
May 23, 2011

physics
A backpack full of books weighing 58.0 rests on a table in a physics laboratory classroom. A spring with a force constant of 140 is attached to the backpack and pulled horizontally. If the backpack begins to slide when the spring ( = 140 ) stretches by 2.40 , what is the ...
May 19, 2011

physics
nvm. i got it. 84 was wrong... thanks for your help!
May 19, 2011

physics
plugging everything in do I get 84.15? That seems a little high...
May 19, 2011

physics
A car goes around a curve on a road that is banked at an angle of 30.5 . Even though the road is slick, the car will stay on the road without any friction between its tires and the road when its speed is 19.0 . What is the radius of the curve?
May 19, 2011

Chemistry
Which of the following compounds is a strong electrolyte? a. C6H12O6 b. C7H14O5 c. C4H8O2 d. NaC2H3O2 e. All of these --- I think it is D but I'm not sure. Also, how do you know if it is a strong or weak acid?
April 20, 2011

math
15trips
April 18, 2011

MATH
10*26=260
April 18, 2011

MATH
260 license plates
April 18, 2011

Math
paper = 10 point, 10 off for each day late. student missed 5 out of 10 and was 3 day late. what is the score?
February 9, 2011

English
By the house the boy and his dog were standing.
February 2, 2011

Chemistry
well, now working through it I get 5.4x10^14
January 28, 2011

Chemistry
Convert the value 8.1 x 10^15 ng/m3 to units of g/cm3. I am not sure how to do this kind of problem when the units are cubed. This is what I have so far. (8.1 x 10^15 ng/m3) x (1 g/ 1x10^9ng) x (1m/ 100cm) = 8.1 x 10^22
January 28, 2011

chemistry
Calcium Hydroxide
January 18, 2011

health
I copied this answer from answerbag. I hope it helps: There are so many ways to contract AIDS and HIV that its frightening when you think about it. Here are the most common: 1. Unprotected Sex - the #1 transmitter of AIDS and HIV, though that is being disputed currently. ...
January 18, 2011

Chemistry--Quick Question
Just clarifying but C would be an observation because you would be able to feel/observe the heat coming off of it as it reacts, right?
January 18, 2011

Chemistry--Quick Question
Okay, I take that back. I think the correct answer(s) would be A, C, and D. I don't think the answer is B because that is an observation and I don't think the answer is E because that is a theory.
January 18, 2011

Chemistry--Quick Question
Which of the following are LAWS according to the Scientific Method? It is possible for more than one answer. a. The volume of a gas is inversely proportional to its pressure. b. A solid has a mass of 100.0 grams and a volume of 11.1 mL. c. When a piece of magnesium burns in ...
January 18, 2011

chemistry
a magnet would pull the iron out of the sand and salt. Can you add water? If so you could add the sand and salt together with water. the salt would dissolve in water. You could use the filter to take the sand out of the saltwater/sand mix and then get the salt back by using ...
January 18, 2011

chemistry
density=mass/volume plug and chug your numbers to find out
January 18, 2011

Chemistry
That is correct. Electrons have a negative charge to them. Atoms typically have an equal number of protons, which are positive, to electrons. This makes the atom neutral. By losing an electron, and taking away a negative force, you weigh the atom on the positive side making it...
January 18, 2011

chemistry
Does Kv2SOv4, Kv2COv3 or KCv2Hv3Ov2 create the greatest increase in pH when mixed with water?
January 13, 2011

chemistry
The normality of Hv2SOv4 is given as 0.20 N for a reaction in which the Hv2SOv4 furnishes two hydrogen ions. What is the molarity of the Hv2SOv4? A. 0.40 M B. 0.30 M C. 0.20 M D. 0.10 M
January 12, 2011

chemistry
What is the gram equivalent mass? In a reaction of Hv3POv4 with a base, three protons are donated for each formula unit of Hv3POv4. What is the gram equivalent mass of Hv3POv4?
January 12, 2011

chemistry
How would set up a problem like this? A mass of 20.0 g of NaOH is dissolved in water to form 5.0 dm^3 of solution. What is the molarity of the hydrogen ion concentration if the temperature is 25 degrees Celsius?
January 11, 2011

Chemistry
"A 25.0% solution of Al2(SO4)3 has a density of 1.75 g/ml. What is the mass of dissolved solute in 40.0 ml of solution?" How would one set this problem up?
December 8, 2010

geometry
that doesnt help
November 11, 2010

geometry
A rectangular box measures exactly 72 cubic feet. What are its possible dimensions? Give 3 answers.
November 11, 2010

Chemistry
How many atoms of element "R" are present in 55.80 g of (AH3)4(R2O3)4 (molar mass = 478.17 g/mol)? Please help. I've tried going (g of molecule/mol)x(1 mol of molecule/ 55.80g)but I'm not really sure what to do with this.
October 15, 2010

north america
san francisco is a city california a state
October 15, 2010

north america
city
October 15, 2010

5th grade
Friday= 8/10 of a mile ran Wednesday= 1/10 of a mile ran Monday= 6/10 of a mile ran Tuesday= 11/10 of a mile ran
October 15, 2010

PLEASE HELP: Chemistry
How many atoms of element "R" are present in 55.80 g of (AH3)4(R2O3)4 (molar mass = 478.17 g/mol)? Please help. I've tried going (g of molecule/mol)x(1 mol of molecule/ 55.80g)but I'm not really sure what to do with this.
October 14, 2010

Chemistry
Hello, I am looking just for someone to tell me how I go about doing this problem, ie. the formula that i would need to know for it. I would really like to figure it out on my own but I'm not sure how to. The mass ratio of Kr to F in a particular compound is 2.206:1. How ...
September 30, 2010

Algebra
I think it would be 1/12. Each dice has 6 numbers, thus there is a 1/6 probability of rolling any number. When you roll the second dice you have the same probability of getting any number. Since you want the numbers to be the same you would multiple the probabilities of ...
September 30, 2010

reimbusment methodology
Your hospital has just recieved a reimbursement rejection from the fiscal intermediary for two outpatient procedures that were performed on the same day. This rejection was probably generated by....A. the CCI outpatient code editor B. the internal auditing program C. the HAVEN...
September 30, 2010

12th grade
prove that the statement 1/5+1/5^2+1/5^3 +...+1/5^n=1/4(1-1/5^n) is true for all positive integers n, write your proof in the space below
September 22, 2010

Physics
for imcomplete cancellation to occur, opposite pulses must have?
August 28, 2010

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