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Posts by Julie

Total # Posts: 1,156

physics
A monoatomic ideal gas has Cp= 5R/2 a) four moles of the gas undergoes a process in which the temperature of the gas increases from 300 K to 500 K while the pressure is kept constant at 2.00 x 105 Pa. What is the change in the internal energy of the gas? b) Four moles of the ...

Maths
Susanna owns 10 shops and 5 restaurants. She is going to visit three of her businesses and writes her list in order. The order will be: Shop, restaurant, shop OR Restaurant, shop, restaurant. How many different lists can Bethany write? Thank you.

Maths
The sketch shows a curve with equation y=ab^x where a and b are constants and b>0. The curve passes through the points (0,3) and (2,12). Calculate the value of a and b. Thank you.

LA PLEASE HELP!!!!!!
The answer is D this is 100% correct I already made a 100 on this test

English
Okay thanks so much for all the help! I really needed it! :D

English
8. What can readers infer from the following quote from Act V, Scene 3 of Romeo and Juliet? Montague: O thou untaught! what manners is in this, To press before thy father to a grave? a. Montague believes that sons who act disobediently die early deaths. b. Montague believes ...

English
Okay! :D

English
I have one more, do you think you can help me?

English
Yay! Thanks!

English
Thanks! I think it's B now.

English
7. After he is wounded in Act III, Scene 1, Mercutio says to Romeo, "Why the devil came you between us? I was hurt your arm." Which of the following is the best paraphrase of Mercutio's words? a. I am so badly wounded that I feel I will die. b. Why did you ...

Math
Thank you soooo much, y'all made it clear!! @bobpursley @Tony O. @Damon

Math
There is a population of 6.848 billion people. There are roughly 57.9 million square miles of land on Earth, of which about 22% are favorbale for agriculture. Round answer to the nearest person. There are ___ people/ mile^2 of farmable land. I DIVIDED 6.848BILL / 57.9MILL & ...

Algebra
Thank you @steve

Algebra
A department store is offering a coupon for 21 off for any purchases over $100. Construct a piecewise function for the actual cost, C, of the purchase as a function of the original purchase price, P. C= ? ,if 0 <P </100

Math
ms sue how did u get 5/8

Math
Can anyone answer this question please

Math
A salad dressing is 25% vinegar.Sue wants to make 2 cups of dressing.How much vinegar does she need?

culture
Beliefs about child rearing practices are influenced by: A. ethnicity, intuition, occupation. B. ethnicity, religion, and occupation. C. religion, education, destiny. D. education, occupation, serendipity

Math
a student answered 86 problems on a test and got a 98%. How many problems were on the test?

Math
Omar's current annual salary is $75,000. How much will he need to earn 15 years from now to retain his present purchasing power if the rate of inflation over that period is 2%/year? Assume that inflation is continuously compounded.

Trigonometry
Outside temperature over a day can be modeled as a sinusoidal function. Suppose you know the high temperature of 95 degrees occurs at 3 PM and the average temperature for the day is 80 degrees. Find the temperature, to the nearest degree, at 8 AM

algebra
In an experiment, the population P of bacteria is given by P=1000e^kt,where k is constant.If the size of population bacteria is found to be 3000 after 10 hours, what is the size of the population after 5 hours?Show me the solution please.

English
Thank you for the link, I checked it out, however I still have trouble finding the symbols. I think that the moon and stars could be symbols in the play, as they are mentioned several times, however I'm not sure what they could represent.

English
What symbols are present in the poem, Salt Water Moon, by David French?

PHYSICS PLEASE HELP
Find the electric field on the axis of a uniformly charged solid cylinder, at a  distance z from the center of the cylinder. The length of the cylinder is H, its  radius is “a”, and the charge density is ρ. (Assume that z > H/2).

Pre-Calc 20
**EDIT** A rectangle has a diagonal of 18cm. The diagonal creates a 60 degree angle at the base of the triangle. Write an exact expression for the base and the height of the triangle. My teacher wants the base and height answered in roots so do you think you could switch the ...

Pre-Calc 20
A rectangle has a diagonal of 18cm. The diagonal creates a 60 degree angle at the base of the triangle. Write an exact expression for the base and the height of the triangle.

Math
My car gets 24 miles per gallon I put 15.1 gallons of gas in my tank how many miles can I drive on 15.1 gallons of gas?

Sciene Degree
Pressure, P, is directly proportional to temperature,T, and P is 28 lb per square inch when T is 112 degress Kelvin. What is the pressure when the temperature is 124 degrees Kelvin? If required, round answer to three decimal places. _____lbs per square inch.

Math
Thank you so much! Oh, and I checked and the first problem doesn't contain a typo.

Math
Hello, I need help solving two systems of equations. I'm not sure how to solve them. They are: 7w+e=8 e+5=9 And the second one is: 7e=107-6d 7e+8d=117 Thanks!

Physics
a ship is headed towards east at a thrust speed of 7.00 knots. A strong wind pressure causes the ship to deviate to the north at 1.00 knots. The sea current is flowing to the southwest at 4.00 knots. Determine the velocity of the ship relative to the earth's surface.

English Grammar
My English question asked if a topic sentence should be short or long.(true or false) I don't know how to answer this question. is this question false.

English
Just a question Can a topic sentence be short?

English
A topic sentence should be very long. 1. True 2. False Please recheck my answer. I say True

English
All sentences in a paragraph must relate to the idea that the topic sentence in the paragraph introduces. 1.True 2. False I say true. Please recheck my answer.

Algebra
coffee shop sells small and large coffee. Each day they sell 510 cups of coffee. If the shop sells 3 times as many large cups as small cups of coffee, How many cups of each size do they sell daily?

English
Thank you Ms. Sue

English
In academic writing, introductions must include a thesis statement. 1.True 2.False I think it true, please recheck my work

English
A brief, concise introduction can be effective. 1.True 2.False I think its true, please recheck my answer.

English
Which of the following is unimportant for an introduction in formal or academic writing? 1.Entertaining the audience 2.Establishing the key point the piece of writing will make. 3.Discussing your opinion on the topic for at least three sentences. 4.Providing all of the ...

math
Thanks!

math
Please, just help solve it, and don't give a tip. I still don't follow this.

chemistry 12u
so is it -log^(2.73) ? for some reason my calculator wont calculate it

chemistry 12u
how do i calculate this.. a solution of nitrous acid has a pH of 2.73 what is the [H3O+] ?

math
Suppose the daily high temperature in a town is 3 degrees above average one day, then 5 degrees below average the next day, then 2 degrees above average, then 1 degree below average, then 6 degrees above average, then equal to the average the next day. Find the mean deviation ...

Math
Isaac throws an apple straight up (in the positive direction) from 1.0 m above the ground, reaching a maximum height of 35 meters. Neglecting air resistance, what is the ball’s velocity when it hits the ground?

interest
Find the balance on an account if you invest $100 at 5% for 10 years compounded monthly.

interest
Find the balance on an account if you invest $100 at 5% for 10 years compounded annually.

Romeo and Juliet
I mean B and C

Romeo and Juliet
Which one is right? She marked B and D..

math
The student to teacher ratio is 19:1 at a local school and there is a total of 500 students and teachers. How many teachers and how many students are there. I'm not sure how to begin to set this up since I have two unknowns and not only one.

Math
If pasta sells for $3.55 for a 20-ounce box a. What is the price per ounce? Round to the nearest cent. $3.55/20 = $.18 per ounce b. How many ounces do you get per dollar? Round to the nearest tenth of an ounce. I'm not sure how to solve this answer. Thank you.

Social studies
yep you are good to go! So smart!

Physics
A box slides down a frictionless, 10-meter, 30o incline. Calculate the gravitational potential energy at both the beginning and end of the motion. Calculate the work done by GRAVITY as the box slides down the incline. Compare this to the overall change in gravitational ...

Math
I think you would take your final answer and divide? I might be wrong tho

Science
Yes this is right I got an 100!!!!!

Science
Name each compound by ionic, hydrogen, or molecular compound and name the following? Im stuck on these! help please!! 1- Al2S3 2- SrI2 3 - CL2O5 4 - FeCl2 5 - BeH2

Chemistry
Name each compound by ionic, hydrogen, or molecular compound. And name the following? 1- P2O3 2 - MnO2 3 - Al2S3 4 - SO3 5 - NH3 6- SrI2 7 - CL2O5 8 - FeCl2 9 - BeH2

health check my answers
I got an 100 thanks Ms. Sue

Social Studies
oops, switched. TESSA is right

Social Studies
idk, but 13 a, 14 d?

Science
yes

Business
Price auction on ebay are an exampke of a. e-business B. Information C. Entertainment D. Communication my answer is a. e-business Please help me

Calc
A ball is launched straight up from the edge of a cliff that is 250 m high. The ball's motion is given by s = 35t - 4.9t^2 where s is the ball's height in meters above the cliff top at time t seconds. With what velocity does the ball strike the ground at the base of ...

Maths lit, economics, lifesciences, agriculture, lifeorientation, sepedi, english
What career path should i follow

Math
What is the final price of a $24 sweatshirt if there is a 20% discount applied and then a 7% sales tax added?

Statistics
If a teacher is grading on a curve, the median is 78 and the standard deviation is 9.6, how do i find out the ranges for grades? ex, an A is the top 15% of the curve. I know it has to do with the z score and that is the # of standard deviations the score is from the median, ...

Birthday
Thank you Reed and thank you MS. Sue

Birthday
HI Ms.Sue i didn't know my mom did this but thank you so much for everthing

Birthday
Today is my daughters birthday .Thank you for helping her with her homework.Thank you Ms.Sue aslo she really like you, her name is Kaylah.

Math
The length of a rectangle is 8 cm longer than its width , if the perimeter is 84 cm , what is its area

Math
The length of a rectangle is 8 cm longer than its width , if the perimeter is 84 cm , what is its width

Math
A student got 70% on the first test She got 77% on the second test What is the percent increase ? This was all that was given in question

math
Marisa invests $1650 for 3 years, at which time her investment is worth $2262.7. What interest rate , compounded annually, would yield the same results? Found your answer to 2 decimal places.

geography
All of the following are a kind of government EXCEPT a(n).... (a)direct monarchy (b)oligarchy (c)city-state (d)absolute monarchy I am not sure but I think it is absolute monarchy.....

Spanish
they are all right I think! good luck

Math
Find the total area between y=x+12 and Y=3x+1 between x=0 and x=2.

history
were Helen Keller and John Reed more or less patriotic than United States soldiers who fought in the military during the war? Explain.

chemistry
Given two liters of 0.496M KCl describe how you would use this solution to prepare 250.0 ml of 0.175M KCl.

Math
how many times do the graphs of y=3sinx and y=3sin3x intersect for x in the interval [0, 2012]

algebra
thank you

algebra
you are buying orange juice for $4.50 per container and have a gift card worth $7. TheFunction f(x)=4.50x-7 represents your total cost f(x) if you buy x containers of orange juice and use the gift card. How much do you pay to buy 4 containers of orange juice? Is this correct: ...

Math
Thank you!!!

Math
Sarah starts at a point 26 miles from school and runs toward school at 6 miles per hour. Ryan starts from school 1.3 hours later and runs towards Sarah at 8 miles per hour. Let x be the number of hours Sarah has been running Write an expression in terms of x for the distance ...

Math
My professor gave our class a study guide for our midterm. On that study guide, there were 10 prompts he wanted us to know. Out of the 10, there were 3 prompts that I wasn't confident in. For the midterm, he picked 5 prompts out of the 10. Out of those 5 prompts, 3 of the ...

Calculus
Estimate the relative rate of change of f(t)=5t^2 at t=4. Use change of 0.01.

Algebra
Suppose that you deposit $1735.50 in a savings account that pays 9.25% annual interest with interest created to the account at the end of each year. Assuming no withdrawals are made, find the balance in the account after 4 years

Math
A number is chosen at random from among all 5-digit numbers containing only the digits 1,2,3,4, and/or 5. Find the probability that the digits are all different.

logarithm
If log base 2 of x and log base 2 of y are distinct positive integers and log base x of 2 plus log base y of 2 equal to 0.5. xy=?

Science
Yes great job this is definitely right!

Calculus
6e^3t=9e^2t

Calc
6e^3t=9e^2t

Math
A round silo is 55 feet tall and has a 18 foot radius. How high would a load of 31000 cubic feet of grain fill the silo?

Math
A country's Consumer Price Index (CPI) is a measure of the cost of living. The inflation rate is the annual relative rate of change of the CPI. Use the data in the following table to estimate the inflation rate for each of years 2007–2012. Year 2007 CPI 202.077 Year ...

Math
Distribution of exam 2 scores is unimodal and symmetric with a mean of 78 and a standard deviation of 4.6 points. What exam score corresponds to z- score of -2.46

Algebra
Using two lawnmowers and working together Tom and Anne can mow the lawn in 36 minutes. It takes Anne 90 minutes if she mows the lawn herself. How long would it take Tom to do the job working alone?

Math
If you deposit 10,000 every year into an account paying 5% interest compounded annually, how long will it take to accumulate 1,000,000?

Math
Find the effective rate of interest for 5% compounded monthly.

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