Thursday
August 28, 2014

Posts by sarah


Total # Posts: 3,839

math
thanks,but what is 3^2,is it 3time 2 or square root of 3
July 20, 2013

math
2 people start off to work directly away from each other.they each walk for 4 kms then turn directly to their right and walk for another 3 kms.how far apart are they
July 20, 2013

math
5 people measured a metal bar using the same measuing instrument,but each read the scale to a different level of accuracy.their 5 answers are show below.4 of them are correct(to the chosen level of accuracy),but one is not.which is the odd one out?1)244mm 2)243mm 3)243.7mm 4)...
July 20, 2013

math
a quiz has 25 questions with 4points awarded for each correct answer and 1 point deducted for each incorrect answer,with zero for each question omitted.John scores 77points.how many questions did he omit?
July 20, 2013

math
as a regular customer in my favourite restaurant,i get 10%discount.but to the cost of the meal must be +17.5%gstand 12%service charge.if the %are to be worked out in turn(which each%-addition or discount-being on the previous answer),which order of working leaves me the least ...
July 20, 2013

math
it takes 3weeks to build a large garage.if it takes 2/3 of a week to construct the frame and 5/4 of a week to put the roof on.how much time is spent on the rest of the construction?
July 20, 2013

english
“Boys don’t cook.” What type of rhetorical device or fallacy is this? :“…what are you doing in those overalls? You should be in a dress and camisole, young lady!” what type of rhetorical device or fallacy is this?
July 19, 2013

english
The older you grow the more of it you’ll see. The one place where a man ought to get a square deal is in a courtroom, be he any color of the rainbow, but people have a way of carrying their resentments right into a jury box. As you grow older, you’ll see white men ...
July 19, 2013

english
"There's four kinds of folks in the world. There's the ordinary kind, like us and the neighbours, there's the kind like the Cunningham's out in the woods, the kind like the Ewell's down at the dump, and the Negroes." what rhetorical device or ...
July 19, 2013

english
to kill a mockingbird movie analysis question. 1) how does the lack of eye contact show Mayella is lying? Why is she lying? How does this show racism?How is this significant to the film? analysis further toward the so what factor. Thanks
July 18, 2013

psy
suppose you wanted to do research on how best to gradually charge the behavior of a fearful child. Which of the following theorist are you likely to come across in your resarch
July 15, 2013

Math
Simplify the complex fraction: [(4/(x-5))+(2/(x+2))]/ [((2x)/(x^2-3x-10))+3]
July 12, 2013

Social Studies
It can be said that one of the greatest contributions of the Moors was religious tolerance. Do you believe that is true? If so, why is it then that some people view Muslim culture to be a culture of intolerance?
July 10, 2013

math
OMG I CAN NOT get this !!!! Purchase price of article = $495 Down payment = $50 Number of payments = 36 True annual interest rate = 18% Monthly payment amount = $ The formula is I= 2YC ________ M(N+1) y = the number of payments made in a year. m = the amount financed or how ...
July 10, 2013

math
When I worked this problem out I got the answer $250.80. It was graded wrong. Can you explain what I did wrong. A deposit of $8,000 at 9.5% for 120 days $
July 10, 2013

math
When I worked this problem out I got the answer $250.80. It was graded wrong. Can you explain what I did wrong. A deposit of $8,000 at 9.5% for 120 days $
July 10, 2013

math
Loan Amount: $15,000 Method of payment: discount basis Amount of Interest : $650 Term of loan: 1 year Effective Rate of Interest (to the nearest tenth): I tried to work this out but I got it completely WRONG !!
July 10, 2013

Answered myself lol
Never mind I worked this out myself
July 10, 2013

math
Number of dinners = 125 Individual portion = 8 oz. Size of can = 32 oz. Number of cans required = I got 31.25 buttt you can't have 31.25 cans lol !
July 10, 2013

math
Labor rate = $12 per hour Hours worked = 36 Overhead rate = 125% Retail price of good furnished = $185 Sales tax rate = 7% Total bill for services and parts = $ The answer that I got was 762.80. Can you check my answer.
July 9, 2013

math
For some reason the computer keeps saying my answer is wrong.
July 9, 2013

math
A sphere has a radius of 3.5 inches. Volume (to the nearest tenth) = cubic inches The answer that I got was 179.6. It is wrong ! i I miss a step?
July 9, 2013

math
12= 6in. 16= 8 in. 18= 9 in ! Thank you !
July 9, 2013

math
Suppose you want to represent a triangle with sides 12 feet, 16 feet, and 18 feet on a drawing where 1 inch = 2 feet. How long should the sides of the triangle be in inches? The sides of the triangle on the drawing should be inches, inches, and inches.
July 9, 2013

math
I hope I will too. Math isn't my strongest subject.
July 9, 2013

math
Sorry if I am on here a lot. I just nee a lot of help an I really have to pass this class .
July 9, 2013

math
Thank you.! I was a decimal point off !
July 9, 2013

math
Your station charges $16.50 for a lubrication job. As a promotion you sell six coupons for lubrication jobs for $90. What percentage discount are you offering for customers who purchase the 6-coupon lube book? Discount (to the nearest tenth) = % The answer I got was 9% & my ...
July 9, 2013

math
The total price of an article is $7.02, including tax. If the tax rate is 8%, what is the retail price of the article?
July 9, 2013

math
Purchase price of article = $3,000 Down payment = $0 Number of payments = 36 Monthly payment amount=$93.33 True Annual Interest (to the nearest tenth) = a0 %
July 9, 2013

english
what motivates us as writers and viewers to create and interact with characters through pieces of work such as " a beautiful mind" (movie. This is our essay question. what topic and 3 arguments could i talk about in my essay
July 9, 2013

math
Purchase price of article = $5,555 Down payment = $555 Number of payments = 42 True annual interest rate=18% Monthly Payment= $
July 8, 2013

Math
Loan Amount: $15,000 Method of payment: discount basis Amount of Interest : $650 Term of loan: 1 year Effective Rate of Interest (to the nearest tenth): %
July 8, 2013

Math
Is the price 549.95?
July 8, 2013

Math
It's all one whole question! Can you just tell me the steps to solve each one you do not have to tell me the answer! I just need to know how to get the answer so I will know how to do this problem again ..
July 8, 2013

Math
Tim Worker buys a new sofa for $549.95. He pays 20% down and takes an installment loan to complete the purchase. He makes 12 payments which include his principal and a $50.00 finance charge. What is the APR on his loan? The down payment is $ The amount financed is $ The ...
July 8, 2013

probability
A stock market analyst figures the probabilities that two related stocks, A and B, will go up in price. She finds the probability that A will go up to be 0.6 and the probability that both stocks will go up to be 0.4 What should be her estimate of the probability that stock B ...
July 7, 2013

probability
Assume that there is an urn containing seven $50 bills, six $20 bills, five $10 bills, four $5 bills, and one $1 bill and that the bills all have different serial numbers so that they can be distinguished from each other. A person reaches into the urn and withdraws one bill ...
July 7, 2013

math
there are 6 white balls and 4 black balls.i takeout 2 balls at random,one at a time,without replacement.What is the probability that the second ball i take is black
July 6, 2013

math - help please
Assume that 2 cards are drawn in succession and without replacement from a standard deck of 52 cards. Find the probability that the following occurs: the second card is a 9, given that the first card was a 9.
July 6, 2013

probability
For a family with 2 children, the sample space indicating boy (B) or girl (G) is BB, BG, GB, and GG. If each of the outcomes is equally likely, find the probability that the family has 2 girls, given that the first child is a girl.
July 6, 2013

chemistry
can you explain how to find the bond order of (σ1s)^2(σ1s*)^2(σ2s)^2(σ2s*)^2(σ2p)^2(π 2p)^4(π 2p*)^2... I know that Bond order = (number of bonding electrons - number of antibonding electrons)/2 but i have no idea what to do..
July 3, 2013

Science
How far will a ball travel in 4.2 s if a baseball thrower pitches ball at 43 ms-1? (make sure you have the correct units)Velocity (ms-1) = Distance (m) / Time (s)
June 29, 2013

Math
Find the area of a circle whose circumference measures 100 cm. Area (to the nearest square centimeter) = cm2 I plugged in everything C = 2 r C=2x3.14x100= 628 <<< The computer said it was WRONG ! Then, I tried C= 2X3.14X50= 314 !!! If I am wrong can you EXPLAIN to me ...
June 28, 2013

Math
Omg Thank you !! I now know how to solve this type of problem the correct way ! Thank you so much !
June 28, 2013

Math
How did you get 26.67?
June 28, 2013

Math
Compute the area of a triangle with a base of 15 cm and an altitude of 10.5 in. Area (to the nearest tenth) = cm2 I plugged everything into the area formula which is A = (1/2)bh . A=.5x15x10.5= I got 78.75 rounded 78.8. The computer keeps saying I am wrong. What am I doing ...
June 28, 2013

Chemistry
nevermind dr. bob i figured it out.. the volume was 25 mL
June 27, 2013

Chemistry
is it 404?
June 27, 2013

Chemistry
do you know what the molar mass is?
June 27, 2013

Chemistry
we needed to make the solution's concentration about 0.002 M.
June 27, 2013

Chemistry
we did 1 dilution and do you need to know how much water is added? I attempted the problem and the hint that was given said..."use the mass of iron nitrate and the volume of your final solution to determine the concentration of the final solution."
June 27, 2013

Chemistry
If you weigh out 2.083 g Fe(NO3)3·9H2O, what is the final concentration of the dilute Fe(NO3)3 solution that you make?
June 27, 2013

Math
17,977.5
June 26, 2013

Math
You are given the job of laying carpet for a six-story building. At each floor the dimensions of the floor are 75 meters in length by 40 meters in width. A stairwell takes up a space 2.5 m by 1.5 m, and cuts through each floor. If the rest of the floor area is to be carpeted, ...
June 26, 2013

Math
A cylinder has a radius of 2 feet and a height of 18 feet. Volume (to the nearest tenth) = a0 cubic feet i TRIED to work out this problem. The answer I got was 226.3 I used the cylinder volume formula which is π r2 h.! The computer says my answer is wrong. what am I doing...
June 25, 2013

Math
V = 4/3r3. A sphere has a radius of 4 inches. Volume (to the nearest tenth) = cubic inches The answer I got was 261.2 but it was wrong.
June 25, 2013

physics
a 17 kg sled is being pulled along the horizontal snow covered ground by a horizontal force of 22 N. starting from rest the sled attains a speed of 1.9 m/s in 7.8 m find the coefficient of kinetic fiction between the runners of the sled and the snow.
June 25, 2013

English
Okay, thank you so much!
June 24, 2013

Math
I need help with this I keep putting the numbers in wrong on the formula ! PLEASE HELP Price of article = $315.50 Down payment = $31.55 Monthly payment amount = $16.50 Duration of payments = 20 months True annual interest rate to the nearest tenth = % Formula: I(Interest)= 2YC...
June 24, 2013

Math
formula
June 24, 2013

Math
Weird lol Well this is the formula I= 2yc/m(n+1) y = payments per year; c = total interest paid; m = amount financed; n = total number of payments. I do not know how to plug the numbers in right with this equation.
June 24, 2013

Math
I got 4.72& the computer says the answer was wrong.
June 24, 2013

Math
Your service contract for washer repair maintenance is offered at $48 per year. If a customer wants to pay it off in equal monthly installments for one year and if the true annual interest charge is 18%, what should his monthly payment be?
June 24, 2013

math
Your service contract for washer repair maintenance is offered at $48 per year. If a customer wants to pay it off in equal monthly installments for one year and if the true annual interest charge is 18%, what should his monthly payment be?
June 23, 2013

Math
Price of article = $315.50 Down payment = $31.55 Monthly payment amount = $16.50 Duration of payments = 20 months True annual interest rate to the nearest tenth= %
June 23, 2013

Chemistry
So would it be (3)(.750)/13? .1731 would be the answer?
June 21, 2013

Chemistry
Consider this molecular-level representation of a gas. 5 orange 6 green---> 3 pairs 6 blue If the partial pressure of a diatomic gas is .750 atm, what is the total pressure?
June 21, 2013

Math
Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box of vegetables to be 180 oz. with a standard deviation of 8 oz. He wonders what percent of the vegetable boxes he has grouped for sale will have a ...
June 19, 2013

Math
Weights of the vegetables in a field are normally distributed. From a sample Carl Cornfield determines the mean weight of a box of vegetables to be 180 oz. with a standard deviation of 8 oz. He wonders what percent of the vegetable boxes he has grouped for sale will have a ...
June 18, 2013

math
Express your answer as a decimal (to the nearest hundredth). What part of an hour is 40 minutes?
June 18, 2013

math
On Team B 80% of the football players weigh more than 200 pounds. If 41 men are on the team, how many weigh more than 200 pounds?
June 18, 2013

English Composition II
The practical context of an e-mail includes all of the following EXCEPT:
June 4, 2013

Math
The mass of a jar of beans is 525 g. If the jar has a mass of 25 g, the beans alone must have a mass of:
June 4, 2013

Math
In a right triangle, there is arithmetic sequence. If the shortest side is 15 cm long, what is te length of the other 2 sides. ( hint use pytageron Therom)
June 4, 2013

Math
In a right triangle, there is arithmetic sequence. If the shortest side is 15 cm long, what is te length of the other 2 sides. ( hint use pytageron Therom)
June 4, 2013

Statistics
Air America has a policy of booking as many as 15 persons on an airplane that can seat only 14. (Past studies have revealed that only 86% of the booked passengers actually arrive for the flight.) Find the probability that if Air America books 15 persons, not enough seats will ...
June 2, 2013

Statistics
Air America has a policy of booking as many as 15 persons on an airplane that can seat only 14. (Past studies have revealed that only 86% of the booked passengers actually arrive for the flight.) Find the probability that if Air America books 15 persons, not enough seats will ...
June 2, 2013

Statistics
Individuals who have a certain gene have a 0.50 probability of contracting a certain disease. Suppose that 1,940 individuals with the gene participate in a lifetime study. What is the standard deviation of the number of people who eventually contract the disease? Round your ...
June 2, 2013

Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
June 2, 2013

Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
June 2, 2013

Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
June 2, 2013

Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
June 2, 2013

Statistics
In an elementary school, 25% of children wear glasses. Suppose that a random sample of 64 children is selected. Find the mean number of children in the sample who wear glasses. Round your answer to the nearest integer.
June 2, 2013

Statistics
Assume that in a binomial experiment that n = 12, p = 0.28, and x = 4. Use the binompdf command in the TI-84 calculator to find the probability. Round your answer to 2 decimal places.
June 2, 2013

Statistics
The probability that a randomly selected individual in a certain community has made an online purchase is 0.45. Suppose that a sample of 10 people from the community is selected, what is the probability that at most 3 of them has made an online purchase? Round your answer to 2...
June 2, 2013

Statistics
The probability that a student uses the Academic Resource Center on a regular basis is 0.26. In a group of 18 students, what is the probability that exactly 8 of them use the Academic Resource Center on a regular basis? Round your answer to 2 decimal places.
June 2, 2013

Discrete Math
Apparently I was not the only one who was confused if this was True or False? This was the professor's response: "Nice! #6 is not counted, because question is somewhat ambiguous: Homogeneous linear recurrence relations are not linear combinations of power functions. ...
May 31, 2013

Discrete Math
True or False? Homogeneous linear recurrence equations are linear combinations of power functions. I think the answer is false because although a homogeneous linear recurrence equation is a linear combination, it is composed of constant coefficients. However to solve this ...
May 31, 2013

math - discrete math
Thank you for the help MathMate I really appreciate it :) And yes in this question order matters. I apologize this was a 3 part question and that was mentioned in part a). I was able to understand all parts but the last one. Your explanation makes sense.
May 28, 2013

math - discrete math
A vending machine dispensing books of stamps accepts only one-dollar coins, $1 bills, and $5 bills. How many ways are there to deposit $10 for a book of stamps? Note: I have the answer but do not know how to solve for it. Answer: 1,217
May 28, 2013

Physic Please Help
A pilot direct his plane north and the plane's velocity in still air is 245km/hr. If there is a strong wind of 105km/hr blowing west, what is the ground velocity of the plane?
May 28, 2013

History
True or False. (If false correct it) The ancient Greeks were interested in philosophy, not nature,so they did little to advance scientific knowledge. Please help! Thank you :)
May 24, 2013

Geometry
Find the volume of a rectangular box. The faces have areas of 15, 25, and 60.
May 22, 2013

Math Geometry
How do you put your knowledge of quadrilaterals to kites?
May 22, 2013

Please answer this question as soon as posibble
I did the paraphrases for the story is it the correct way. Lifeguard Assignment Chris doesn’t like children, but he works as lifeguard at the Brigeland Community swimming. He does not like children a lot, but he is working as a lifeguard at the Brigeland Community ...
May 22, 2013

English Please answer ASAP
I did the paraphrases. I want to know is it the correct way r no
May 22, 2013

English Please answer ASAP
Lifeguard Assignment Chris doesn’t like children, but he works as lifeguard at the Brigeland Community swimming. He does not like children a lot, but he is working as a lifeguard at the Brigeland Community swimming pool. He spends most of his time at the swimming pool. It...
May 22, 2013

Calculus II
Find the sum of the series (infinity above sigma) signma and n = 4 3^n-2 divided by 2^2n-3 please I really need help on this
May 20, 2013

statistics
Suppose you are trying to estimate the percent of women in a city. Other things being equal, a simple random sample of 0.1% of the population of a city that has 2,000,000 people is ________ as a simple random sample of 0.1% of the population of a city that has 500,000 people. ...
May 20, 2013

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