# Posts by karen

Total # Posts: 1,074

**Chemistry**

A, C, E, and F are true

**physics**

What force is needed to accelerate a child on a sled with the total mass of 43kg at 1.5m/s

**math**

how do you convert fractions to decimals.

**grammar**

Thanks!

**grammar**

Wondering if I have correctly identified each verb in the following sentences: The role of education plays (simple present) a major role in successful financial planning. My Personal Finance class is helping (progressive present) me to learn how to budget successfully. I have ...

**Algebra 2/Math**

Can you check these thanks. Solve the system by substitution or elimination. 2x+y=1 3x-y=14 Answer: (3,5) x-3y= -12 2x + 11y= -7 Answer: (39,17) 4x+2y=8 12x+6y=24 Answer: no solution 4x-2y=5 2x-y= -1 Answer: no solution 4a+3b =6 8a-b= -9 Answer: no solution

**Physics**

A ceiling fan is rotating at 0.70 rev/s. When turned off, it slows uniformly to a stop in 2.9 s. (a) How many revolutions does it make in this time? (b)Using the result from part (a), find the number of revolutions the fan must make for its speed to decrease from 0.7 rev/s to ...

**algebra 2**

Find the rule for the quadratic. The h =24ft. The pumpkin retuerns to the ground after 6 seconds. Hint: wat is the height when it hits the ground? Use h +vt-16t^2

**physics**

a 2 liter bottle rocket has a thrust phase on .25 sec. The rocket goes straight up, reaches its apex, then plunges straight down. Total time is 8 sec. How do I calculate height, velocity and acceleration???

**history**

6. Which of the following accurately characterizes a difference in the way the House and Senate operate? (Points : 1) The House is more formal than the Senate. The Senate leadership is more powerful than the House leadership. Authority in the Senate is concentrated while ...

**7th grade Math**

how are the comparison methods juan uses similar to the method you use to compare the sizes and shapes of similar figures?

**Geometry**

what is the supplement of B if B=(3x-16)?

**Math**

Make your own equation. 1. A number is 6 times another number. The sum of the two numbers is 56. @. Donna has twice as many coins as Cathy. When Donna gives Cathy 2 coins, they each have the same number. How many coins do they each have? Let the number of coins that Cathy has ...

**ALGEBRA**

yes that is correct then on the graph it would be a filled in circle at -6/7 going to the right.

**ALGEBRA**

That is correct! good job! :)

**science**

what is the structure formula for the acrylate ion?

**math**

^ that is correct! because 2/1=2 and 2 is greater than 1/3

**science**

thanks that helped! also what is the structure formula for the acrylate ion?

**science**

why does the addition of acetone cause the polystyrene to change shape?

**English-**

I posted earlier but i wanted to added something... I need have to find a song that share similar views as Transcendentalists Here are some views of the Transcendentalists: -Intuition -they think we can understand ourselves through nature. - Individualism(the fact of being ...

**English**

do u think unwritten by natasha bedingfield represents it well?

**English**

thanks. do u by chance know any recent songs like in the last 10 years that follow those views?

**English**

I need some ideas of novels,songs,comics etc.(preferebly a song) that share similar views as Transcendentalists Here are some views of the Transcendentalists: -Intuition -they think we can understand ourselves through nature. - Individualism(the fact of being true to yourself...

**english**

Which group of words in the sentence is misplaced? Having been discovered, Rover looked up at his owner with puppy-dog eyes. a. with puppy-dog eyes b. been discovered c. his owner d. Rover looked up

**chemistry**

Glauber's salt undergoes a phase transition according to the following equation: Na2SO4*10H2O(s)--> Na2SO4*10H2O(l) DH = 74.4 kJ/mol Calculate the mass (g) of Glauber's salt (use the masses to two decimal places found in the front of your text) needed to lower the ...

**Literature/The Crucible**

Can you help me with these two questions thanks. Acts 1 and 2 Cause and effect relationships The Crucible Directions: Fill in the blanks to show what happened (effect) as a result of specific action (cause) 1. Because Sarah Good had mumbled in Mary Warren's hearing, then...

**Algebra/Math**

Can you check these for me. Directions: Find the slope of the line that passes through each pair of points. 1. (3,-8) and (-5,2) Answer: -10/8 2. (-10,-3) and (7,2) Answer: -5,-17 3. (-7,-6) and (3,-6) Answer: 9 4. (8,2) and (8,-1) Answer: 0 undefined Directions: State whether...

**Basic Math**

How do you convert 11.4mm into cm^3? I know it's simple, but I forgot. Thanks.

**math**

how could you show five less than a number using an expression?

**Chemistry**

Is DrBob222 available tonight? Please let me know, I need some chem help.

**Chemistry**

A total of 2.00 mol of a compound is allowed to react in a foam coffee cup that contains 141 g of water. The reaction caused the temperature of the water to rise from 21.0 to 24.7 degrees Celsius. What is the enthalpy of this reaction? Assume that no heat is lost to the ...

**Chemistry**

A 1L flask is filled with 1.25 g of argon at 25 degrees celcium. A sample of ethane vapor is added to the same flask until the total pressure is 1.45 atm. What is the partial pressure of argon in the flask?

**Chemistry**

A 1.994-g sample of gypsum, a hydrated salt of calcium sulfate, CaSO_4_, is heated at a temperture greater than 170 degrees C in a crucible until a constant mass is reached. The mass of the anhydrous CaSO_4_ salt is 1.577g. What is the mass percent of water in the hydrated ...

**3rd grade math**

draw a number line. make sure the following numbers are on the line: 1,472; 1,560, 1,481

**college (media culture & society)**

I need to elaborate on the points below: Mtv & popular culture: 1. testing ground for film techniques 2. promotes film not just music 3. introduces female performers, resistance and identity. 4. ground for social activism 5. standard in the advertising industry 6. addoptive ...

**math**

Kelly subtracted 2.3 from 20 and got 17.7. Explain why this answer is resonable.

**Physics**

your wrong you have to convert to kilograms first because that is the SI unit for Newtons. So maybe you need a tutor

**midway**

How do you write 67,000 in expanded form?

**reimbursement methodologies**

you're reviewing reimbursement for a Medicare surgical craniotomy case. the case falls into DRG 1, which has a relative weight of 3,0970 and a geometric mean length of stay of 6.3. the hospitals's current standard reimbursement rate $1500. calculate the DRG ...

**World Studies**

What is the region of North America where the vikings landed?

**Math**

a ball rebounds 1/2 of the height from which it is dropped. The ball is dropped from a height of 136 feet and keeps on bouncing. How far will it traveled when it strikes the ground the third time?

**college**

How do I download the ABC Health HIM organizational chart?

**statistics**

Suppose that about 20% of those called will find an excuse (work, poor health, travel out of town, etc.) to avoid jury duty. If 14 people are called for jury duty, what is the probability that all 14 will be available to serve on the jury? Round your answer to three decimal ...

**statistics**

Is the magnitude of an earthquake related to the depth below the surface at which the quake occurs? Let x be the magnitude of an earthquake (on the Richter scale), and let y be the depth (in kilometers) of the quake below the surface at the epicenter. Suppose a random sample ...

**statistics**

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29 a. 84.20 b. 67.36 c. 101.00 d. 88.84 e. 126.25

**statistics**

Consider the data that was obtained from a random sample of 45 credit card accounts. Identify all the averages (mean, median, or mode) that can be used to summarize the outstanding balance on each account. a. mean, median, and mode if it exists b. only median if it exists c. ...

**science**

correct c - a metamorphic rock formed from shale is slate

**science**

b) crust

**statistics**

The director of the campus-computing center did a study to determine the patterns of student computer usage. He found that 15% of the total student computer hours occurred during the first 5 weeks of the term, 25% during the middle five weeks, and 60% during the last 5 weeks. ...

**statistics**

Find the sample variance s2 for the following sample data. Round your answer to the nearest hundredth. x: 23 17 12 35 29

**statistics**

Given the following scatter diagram , the sample correlation coefficient r: Has a positive linear correlation Has a negative linear correlation. Has little or no correlation. Looks close to + 1.00

**math**

That's what I got too !!! May be it's a trick question - Thank you for trying

**math**

I have 10 boxes and 44 marbles .Can I put my marbles in the boxes so that each box contains a different number of marbles?

**statistics**

Do bonds reduce the overall risk of an investment portfolio? Let x be a random variable representing annual percent return for the Vanguard Total Stock Index (all Stocks). Let y be a random variable representing annual return for the Vanguard Balanced Index (60% stock and 40% ...

**statistics**

What is meant by the 95% confidence interval of the mean ? That 95% of my sample is OK to do more tests. That I am 95% confident that the confidence interval will contain the parameter being estimated. That 5% of my sample is not OK. That I am 95% sure that the population mean...

**math**

find the z-score of 78.5%. This was all the info given for the question and i have no clue how to figure it

**Science**

The independent variable is D (The material the cups are made of). An independent variable is what is changed! The amount of water in each cup is the same...50mL, so that is the control group.

**english**

A project design has been approved by management. The engineering team is about to start production of the new line. I want to be sure this process goes by smoothly. I need to come up with a communication plan to address successful development and delivery of the new product

**History 1301**

How did human history in North America during the period described in the Prologue differ from the events of Asia, Eurasia, and Europe? Be specific. How were these differences important to the international state of affairs in 1450?

**us history**

after the war of 1812, What were the negative aspects of the new market economy? What were the positive aspects of the new market economy? How did the creation of a single market economy shape American values and the economy of today?

**us history**

In what ways did democracy create a new political culture? How did democracy impact social change?

**social studies**

after the war of 1812, What were the negative aspects of the new market economy? What were the positive aspects of the new market economy? How did the creation of a single market economy shape American values and the economy of today?

**social studies**

What were the negative aspects of the new market economy? What were the positive aspects of the new market economy? How did the creation of a single market economy shape American values and the economy of today?

**us history**

In what ways did democracy create a new political culture? How did democracy impact social change?

**calculus**

find and classify all local minima, local maxima, and saddle points of the function f(x,y)= e^-y(x^2+y^2)

**chemistry**

Have 0.02M of KIO3, what is the molaity of IO3?

**CAPITALIZATION**

Sorry I'm not sure at all

**CAPITALIZATION**

And father ?.

**Math**

how to round 427,685 to the nearest thousand?

**Managerial Accounting**

Tiger Golf Accessories sells golf shoes, gloves and laser-guided range finder that measures distance Below are unit cost and sales data. Shoes Gloves Range find Unit sales $100 $30 $250 Unit VC 60 10 200 Unit CM $40 $20 $50 Sales Mix 40% 50% 10% Fixed cost are $620,000 a.) ...

**Chemistry**

A lactic acid/lactate ion buffer solution contains 0.23 \it M \rm HC_3H_5O_3 and 0.65 \it M \rm C_3H_5O_3{}^-, respectively. The K_{\rm a} value of lactic acid is 1.4\times 10^{-4}. Calculate the \rm pH of this buffer.

**the power of art**

If Gianiorenzo Bernini's Apollo and Daphne were to be moved from the Galleria Borghese in Rome where it now stands into the Ufizzi Gallery, the most ideal place to install it would be A anywhere in a gallery, provided it was with other 16th century marble statues B on the ...

**British Literature**

Could you help: Compare and contrast Beowulf's speech with Sir Gawain's speech.

**college**

One side of a triangle is 2 cm shorter than the base. The other side is 3 cm longer than the base. What lengths of the base will allow the perimeter to be greater than 19 cm?

**Social Studies**

Does anyone know of any words from the Medieval times that starts with the letter "O"?

**Corprate Finance**

An initial investment of $400,000 will produce an end of year cash flow of $480,000. What is the NPV of the project at a discount rate of 20%?

**math**

The speed of a train A is 8mph slower than the speed of train B. Train A travels 230 miles in same time it takes train B to travel 270 miles. Find the speed of each train.

**chemistry**

what is the volume of 62.3 g of nitrogen gas at STP

**math 2**

if r=5z, then 15z=3y, then r= ?

**math**

paul paints a house in 4 hours, mike paints the same house in 6 hours. how long will it take them both to paints this house?

**3rd grade**

In analogies...What is the answer for this.ring is to sting as brick is to? what?

**Personal Finance Concepts**

How to set up the problem. Calculate the after-tax yields on the foregoing investments, assuming the Brittens have a 28% marginal tax rate. And they are going to purchase a condominium for $100,000 with an expected annual increase in market value = to 2%

**business law**

Task: Read the following two scenarios and explain for each scenario, all the torts that have been committed, any arguments that can be used as a defence or to limit liability, and likely liability which will be imposed on each of the parties. Scenario 1 Ramos, a local ...

**English**

I am assigned to write a formal essay focusing on the theme of "Mrs Turner Cutting the Grass". Are job is to support our argument with any of the following: plot structure, symbolism, irony, humour, pathos, style or foreshadowing. How do I go about this? Can anyone ...

**math**

I have a math problem where I am trying to carpet a hallway of an irregular shape.The cost of the carpet is $ 10.80 a sq.yd. How many square yds. will I need? I also need to know the perimeter for string molding. Can you help me. The measurements are 6ft,2ft,3ft,8ft,8ft,1ft,...

**math**

Which conic section is represented by the equation? x^2 - y^2 + 24x + 4y + 28 = 0.

**Calculus**

Hi there,could you help me with the following questions; 1.) Analyze the key features (any asymptotes, intercepts, critical points) and then sketch the graph of the function f(x)= x-0.25/x^2 --> I am unsure about my answers could you tell me if I am correct; Intercepts: x=0...

**math**

How do I convert the polar equation r - 3cos(theta) = 5sin to cartesian equation form?

**french**

What does solde A Payer Mean

**math**

How could thinking about 90 tens help you fing 1,901-297?

**math**

what is 3 plus 13

**math**

how many sides does a petagan have.

**schocial studies**

what do you draw for the sentence so many people are hungry and they don't have any food so a lot of people died.

**math**

How do I graph a circle with the center being (0, 5) that passes through (0, -5) and then find area a and circumference?

**English**

Analogy for INFINITE: END, would be the same as: wealthy:money blithe:happines abysmal:bottom contrite:repentance delectable:delight

**Math**

It is a problem on a page with polygons and generalizations.

**Math**

What do all of these numbers have in common? 3,5,7,11,13

**math**

i am thinking of a number between 20 and 50. it is an even number. it has exactly 9 factors. what is the number?

**reimbutsement**

services under the outpatient prospective system are paid based on?

**Algebra**

Part 1: Using the Library, web resources, and/or other materials, find the gas mileage of your dream car or any car of your choice. Let x be the number of miles driven on 60 gallons of gas. By setting up and solving a proportion involving x, find the value of x for the car ...