Saturday

April 19, 2014

April 19, 2014

Total # Posts: 577

**chemistry**

2AgNO3 + K2CrO4 --> Ag2CrO4 + 2KNO3

**math**

how to find the derivative of y=3tan(piex^2) using the chain rule?

**business**

four basic rights that form the foundation of capitalism

**Cal**

10. For f(x)=lnx, construct tables, rounded to four decimals, near x=1, x=2, x=5, and x=10. Use tables to estimate f'(1), f'(2), f'(5) and f'(10). Then guess a general formula for f'(x). I dont understand how to do number 11 11. Estimate f'(2) using the...

**Cal**

10. For f(x)=lnx, construct tables, rounded to four decimals, near x=1, x=2, x=5, and x=10. Use tables to estimate f'(1), f'(2), f'(5) and f'(10). Then guess a general formula for f'(x). I dont understand how to do number 11 11. Estimate f'(2) using the...

**Financial management**

15,600 units sold

**PHYSICS**

190 MJ OF ENERGY ARE NEEDED TO MELT 500KG OF ALUMINUM AT 660 DEGREES CELCIUS. CALCULATE THE SPECIFIC LATENTHEAT OF ALUMINUM

**Algebra**

Thank you so much for showing me-now I can use this as an example

**Algebra**

I have to find the zeros of f(x) = x^2 + 2x-5 can someone start me off so I have an example to work from for the rest of my problems-thank you for your help

**teacher aide technology in the classroom**

b it presents a sequence of images that initates a real or imaging system.

**science**

A man incurs a deep laceration on his thigh, he goes to the hospital and gets the wound cleaned, stitched and dressed. He was discharged soon after. Four days after the man finds the wound extremely painful and had a smelly discharge. QUESTION: by which intention would this wo...

**teacher aide language and other barriers**

Could you check my answers please 1b2c3d4c5b6c7d8b8c10c11b12b13a14c15b16a17b18b19d20d

**Health education**

Physical and emotional abuse is ignorance can be related to a number of factors. for example: - cultural expectations *e.g. perhaps women are not encouraged to speak up, and the idea of abuse is supposed to be silenced - personal experiences * e.g. they may have gone through p...

**English-help needed**

1) The expiry date of the product will be 1 year from the date stated on the label, unless otherwise advised by the supplier. OR 2) The expiry date of the product will be 1 year from the date stated on the label, unless advised otherwise by the supplier. Which is correct?

**Precalculus**

How do you find the number of complex roots in a function?

**communication**

how interest rates affect our purchasing decisions

**communication**

what sistuations lend themselves to evaluation

**Physics**

At what angle is an object launched if its initial vertical speed is 3.75 m/s and its initial horizontal speed is 4.50 m/s?

**physical**

At what angle is an object launched if its initial vertical speed is 3.75 m/s and its initial horizontal speed is 4.50 m/s?

**statistics**

There are 20 numbers, the highest is 91, the lowest is 34. The mean is 60 and the standard deviation is 5. What are the 20 numbers?

**statistics**

There are 20 numbers, the highest is 91, the lowest is 34. The mean is 60 and the standard deviation is 5. What are the 20 numbers?

**economics**

You are a painter, and the price of a gallon of paint increases from $3.00 a gallon from 3.50 a gallon. your usage of paint drops from 35 gallons a month to 20 gallons a month. perform the following: 1. compute the price elasticity of demand for paint and show your calculation...

**english**

oh I see it now thanks!

**english**

why wouldn't the colon be acceptable?

**english**

okay thanks Ms.Sue!

**english**

As said by Martin Luther king:" A lie cannot live."

**english**

Can you start a sentence with As?

**English**

Gracias Sra!

**English**

Thanks ms. Sue! and thanks jess!

**English**

Can you start a sentence with from? Also, is this sentence grammatically correct: Going to the park involved walking the dog, meeting people, and exercising, all of which I loved.

**History**

how did some people hope to solve the problem of california’s isolation from the rest of the country?

**Math**

Thank you so much!

**Math**

A design on a balloon is 2 cm wide when the balloon holds 47 cm^3. How much must the balloon hold for the design to be 6 cm wide? I'm confused about how to solve this. Could someone please show me the steps?

**alegebra **

can you explain how you got there?

**alegebra **

(5b/2y)(-3y/10b^2)

**teacher aide**

C. to place special needs students in the marjority.

**Limiting Reagents**

Thank you :)

**Limiting Reagents**

in the synthesis of FeC2O4 (dot) 2H2O, which reagent would be the limiting reagent? FeSO4(NH4)2SO4 (dot) 6H2O - 2.68g. H2C2O4 (dot) 2H2O - 1.99g. I just want to know how the H2Os would effect finding the limiting reagent. As in do they change the ratio? The molecular mass? Tha...

**Chemistry**

How do you draw the lewis strusture for Cyanogen(C2N2)

**Chemistry-help**

The 3 results should be within ± 0.5. I have 3 results 1) 1.5 2) 0.5 3) 1.0 Does this mean the results are acceptable since the 3 values can be arranged in the following order 0.5,1.0,1.5. The smallest value 0.5 is (-0.5) of the middle value 1.0 and the largest value 1....

**Physics-Please reecheck**

thanks so much for the explanation- I thought it might be parallel-just wasn't sure

**Physics-bobpursley Please recheck**

Could you please recheck this above-because my teacher said perpendicular isn't correct

**Physics-Please recheck**

My teacher told me it isn't perpendicular because it is not passing through but rotating so now I'm totally confused-Could you please look at this again? Thank you

**Physics-Please check**

Electricity may be generated by rotating a loop of wire between the poles of a magnet. The induced current is greates when: a.Plane of loop makes an angle 45 degrees with the magnetic field b.The plane of the loop is parallel to the magnetic field c.The plane of the loop is pe...

**physics**

Does the minimum height of a mirror required so that a man can see himself completely depend on his distance from the mirror?

**English-urgent**

1) This puts the integrity of the material into question. or 2) This puts the integrity of the material in question. Which is correct?

**Algebra**

(x+5)(x+2)=X2+7x+10

**Physics**

How do I find Period T(s) and Period^2 T^2 (s^2) given mass(kg) = 0.1 and Average time for ten vibrations (s) = 5.05?

**Physics**

Here’s how two different students approached part A. Elizabeth: Since the little brother is half as heavy as her sister, he must sit twice as far from the pivot in order to “compensate” for his lower weight—6 feet instead of 3 feet. Jill: I used the formula...

**Physics**

A. Suppose you had an object that you suspected had a mass of one half of one of the washer+paperclip units. (In the rest of this problem we’ll call that a “washerclip.”) Describe how you could use the balance you used in tutorial and a single washerclip to chec...

**chemistry**

Investigating changes in colligative properties involves the measurement of a solution’s concentration in molality instead of molarity because of which of the following? the mass of the solvent does not change, but its volume does change, as temperature changes. the volum...

**Science**

I want to thank you for all the help, I just found this sight today. I think that you and the sight are realy COOL!!!!! thanks :-)

**science**

Thank you. I don't know if this one is right- At the speed of 2.5m/s, how many seconnds will it take the kayak to run a 4,500 m course? what is the speed of the kayak in kilometers per hour? speed= 4,500km/2.5h*60min/1 h =270,000/2.5=108,000km/h Thank you Ms. Sue :-)

**science**

Ms. Sue, I want to check an answer ok? A kayak races 100m in 50s. What is its speed? This is my answer speed=100m/50s=2m/s. Thank you

**science**

Okay, Ms. Sue. I got this and I don't think that it is right. this is the question - I wrote the answer at the bottom. I don't think that its right. speed=4,500km/2.5h*60min/1 h=270,000/2.5=108,000km/h I think that i'm confused. Thanks

**science**

At the speed of 2.5 m/s, how many seconds will it take the kayak to run a 4,500 m course? What is the speed of the kayak inn kilometer per hour? I want to work it on my own, just need help with formula please thanks

**Science**

AWhen it is time to leave the part, the familhy could only drive at 60 km/h in the mountains. How long would it take them to travl the 270 km to their home? How fast would they need to travel to make the trip in 3h? I want to see how i write the formula and then get my answer....

**physics**

The drawing shows an extreme skier at bottom of a ski jump. At this point the track is circular with a radius r. Two forces act on the skier, her weight mg and the normal force FN. Which relation describes how the net force acting on her is related to her mass m and speed v an...

**economics**

An airline transportation consultant offers the CEO of BlueStar, a struggling new commercial airline company, the following advice concerning the airline's high operating costs in the current quarter: "You don't have enough aircraft to operate efficiently. However...

**Economics**

An article in BusinessWeek warned of the dangers of deflation as the collapse of numerous Asian economies was creating worries that Asia might try to "export its way out of trouble" by oversupplying everything from automobiles to semiconductors. Evidence that deflati...

**analogies**

thirty three

**physics**

Through the process of doing work, what allows energy to move between the external world and the system? the result of what???

**math**

a recipe call for 1.5 cups of mix to make 8 pancakes. John wants to make 12 pancakes and uses 2 cup of mix. Does John have the correct ratio for the recipe

**English**

Thank you.

**English**

Can someone help me analyze this poem? I don't understand the poem From a Correct Address in a Suburb of a Major City By Helen Sorrels (1908) She wears her middle age like a cowled Gown, sleeved in it, folded high At the breast Charming, proper at cocktails But the inner o...

**economics**

. Suppose you are a stock market analyst specializing in the stocks of theme parks, and you are examining Disneyland’s stock. The Wall Street Journal reports that tourism has slowed down in the United States. At Six Flags Magic Mountain in Valencia, California, a new Vipe...

**english**

complete using a simile 1.a drunken person often walks like 2.as slow as 3.my friend can run like

**biology**

yesterday i posted a question about who discovered DNA and Ms Sue kindly helped me but im confused about who actually discovered DNA because there are four different names Friedrich Miescher,Rosalind Franklin,james D Watson and Francis Crick. my homework question is who discov...

**science**

if an acid has a pH of 1.1 what is the hydrogen ion concentration of the solution expressed in scientific notation to 3 significant figures, for my answer can it be written 1 x 10^-1.1 mol dm3? or can you not use decimals in the to the power of so should i write 1.1 x 10^-1

**GEOGRAPHY GCSE**

please could someone help me im stuck on this question :- name three high mountain ranges in temperate latitues with valley glaciers. thankyou

**English-help needed**

Thanks a lot. What about the following sentences? If there is no shelf-life information from the material manufacturer,we will assign one based on our internal protocol. If there is no shelf-life information from the material's manufacturer,we will assign one based on our ...

**English-help needed**

I also thought that both are acceptable. However, I am confused because we usually write "The shoe manufacturer" and "The clothes manufacturer" but not "The shoe's manufacturer" or "The clothes' manufacturer". Can you help me on ...

**English**

We have purchased a batch of material directly from the manufacturer. 1) No discount was provided by the material manufacturer. 2) No discount was provided by the material's manufacturer. Are both sentences acceptable?

**business math**

An Amusement park purchased equipment from a manufacturer for a list price of $42,000.00 minus trade discounts of 30/20/15. Calculate the amount of the trade discount on the purchase.

**English-help**

1)Let the instrument switch on for 1 hour before analysis. 2)On the instrument for 1 hour before analysis. 3)Switch on the instrument and leave it on for 1 hour before analysis. 4)Switch on the instrument and conduct the analysis after 1 hour. 5)Turn on the instrument and allo...

**Physical Science**

All of the following about water is true except that it: a.has a very high specific heat capacity compared to?

**Physical Science**

All of the following about water is true except that it: a.has a very high specific heat capacity compared to?

**Physical Science**

all of the following are true of the subcutaneous layer except it

**English**

Which sentences are correct? 1) Are you able to assist me on this matter? I would appreciate your assistance on this matter. OR 2) Are you able to assist me in this matter? I would appreciate your assistance in this matter. Thanks.

**physics**

I need help finding an equation for: an asteroid revolves around the sun with a mean orbital radius twice that of Earth's. Predict the period of the asteroid in Earth years. Thank you.

**spanish**

what does las uno voy a la clase ciencia means?

**Physics-Please help**

Have 2 identical cars each 1000kg at a speed of 20m/s. The yellow car is stopped by car's brakes in 25m while green car is stopped by concrete barrier in 1.2m. Drivers have same mass(70kg) Driver of yellow car is stopped by seatbelt in 0.150 sec. Compare impulse they recei...

**Physics**

Is the average force found by F = the mass times the acceleration which is 9.8 Thank you- I'm so confused I really don't know where or what to try next Thank you

**Physics**

Have 2 identical cars each 1000kg at a speed of 20m/s. The yellow car is stopped by car's brakes in 25m while green car is stopped by concrete barrier in 1.2m. Drivers have same mass(70kg) Driver of yellow car is stopped by seatbelt in 0.150 sec. Compare impulse they recei...

**Physics**

Have 2 identical cars each 1000kg at a speed of 20m/s. The yellow car is stopped by car's brakes in 25m while green car is stopped by concrete barrier in 1.2m. Drivers have same mass(70kg) Driver of yellow car is stopped by seatbelt in 0.150 sec. Compare impulse they recei...

**Chemistry**

1. State specifically how you would make a conclusive test for an iron (III) salt. 2. Which test for iron (II) ions is conclusive. 3. Suppose you have a solution containing both an iron (II) salt and an iron (III) salt. How would you proceed to identify both Fe2+ and Fe3+ in t...

**college algebra**

9 − 34 − 3(2)

**College Algebra**

Perform the indicated operations 10 − 5[24 ÷ 6 ⋅ 2] 1

**College Algebra**

can someone tell me how to get a division symbol when posting problems in Algebra

**College Algebra**

perform the indicated operations 9-3[4-3(2)

**Physics-Please check**

I said number 4 so I was wrong- Thank you for explaining it and not thinking I'm a complete dope-

**Physics-Please check**

Which of the following confirms that gravitational mass and inertial mass are equal? I posted this about three hours ago and no one answered it so I'm hoping someone can look at my answer and direct me 1.Free-fall accleration is the same throughout the universe 2.Free fall...

**Physic-Please help**

Which of the following confirms that gravitational mass and inertial mass are equal? 1.Free-fall accleration is the same throughout the universe 2.Free fall acceleration is the same at all points where the gravitational field stength is the same 3.Newton's second llaw is v...

**Algebra-Please check**

Write y = 10^(x) as a logarithmic function Choices are log(x)10 = y log(y)x = 10 log(10)y = x log(x)y = 10 I think it is log (10)y = x

**ap physics **

A 22.7 kg mass attached to a spring scale rests on a smooth, horizontal surface. The spring scale, attached to the front end of a boxcar, reads T = 21.9 N when the car is in motion. If the spring scale reads zero when the car is at rest, determine the acceleration of the car, ...

**Cal**

How do you find dy/dx by implicit differentiation with respect to x? x^3 + y^5 = 1

**Physics**

A rotating wheel requires 9.00 s to rotate 29.0 revolutions. Its angular velocity at the end of the 9.00 s interval is 98.0 rad/s. What is the constant angular acceleration of the wheel in radians/second squared? (Do not assume that the wheel starts at rest.)

**physics**

Make sure you're putting the parenthesis in the correct place. Such as for part A, the formulas should be: a) (ball relative ground) = (Juan's speed)+ (ball relative to Juan) (13.6Cos(32.5))N + (13.6Sin(32.5))E =(7.8)N+(ball relative to Juan) ball relative to Juan= (13...

**Algeblease check my answer**

Thank you-I see where I made the mistake on the "j"

**Algebra Please check my answer**

It should have read please check-

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