Monday

July 28, 2014

July 28, 2014

Total # Posts: 2,604

**trig**

Establish the trigonometric identity (Hint: Use sum to product) cos(5x)+cos(3x)/sin(5x)-sin(3x)=cot(x)

**Chem 106**

Calculate the grams of HNO3 in 35.0 ml of a 6.00 M HNO3 solution

**math**

thank you so much!!

**math**

a survey was made of 200 students to study their use of the public library. the findings were 60 used readers guide 28 used card cat and info booth 68 used info booth 83 did not use the library 43 used only the card cat explain how the info can be used to conclude that some st...

**chemistry**

how do u find density of the water?

**Chemistry**

can you be more specific? that equation does not make any sense.

**English**

I believe A. is the correct answer for the fact that 1. the mother wouldn't leave the baby as Sra said and 2. why leaving with respect when the baby is screaming..? i doesn't make sence to me, so i would say A. is correct.

**AP Chemistry**

(a) When 300.0 milliliters of a solution of 0.200 molar AgNO3 is mixed with 100.0 milliliters of a 0.0500 molar CaCl2 solution, what is the concentration of silver ion after the reaction has gone to completion? (b)Write the net cell reaction for a cell formed by placing a silv...

**accounting**

If you are puchasing furniture from your business and want to use your own owners equity instead of cash what would be the journal entry if any

**AP Chemistry**

In a titration of 50 mL 1 Molar HC2H3O2 with 1 Molar NaOH, a student used bromcresol green as an indicator (Ka = 1 X 10^-5). About how many mL of NaOH would it take to reach the end point with this indicator? What would be a better indicator for this titration; why?

**math**

your answer is correct it is 2

**science**

A node is caused by this

**Chemistry**

Which diffuses faster, the bad smell from a cat-pan due to ammonia or an expensive French perfume with an average molecular weight of 170 g/mol? How much fast does the fast one diffuse?

**Chemistry**

How do I set this up? What formula do I use? Will you please help me? How many liters of ammonia at STP are produced when 10 g of hydrogen is combined with nitrogen?

**Math**

The game of dots is played by rolling a fair dice and receiving $1 for each dot showing on the top face of the die. What cost should be set for each roll if the game is to be considered a fair game?

**10th grade**

which of the following belong in which tropic level; catfish, algae, small aquatic plants, phytoplankton, dandelions, walleye, snails, zebra musse, moose, zooplankton, grasshopper, squirrels, loon, cryfish, goby (fish), ducks, wolf, herring, field mouse, tuna, snake, cougar, d...

**general science**

A compound containing 3 atom of carbon and 8 atoms of hydrogen is combined in a reaction wih oxygen molecules. The two end products of this equation are carbon dioxide (CO2)and water. What element should you look at first in balancing this equation?

**Calculus II**

i need help with long divison

**5th grade**

ineed help with long divison

**algebra**

15,000

**algebra**

15,000

**Communication Language Studies**

Thanks! This makes sense.

**Communication Language Studies**

Most modern style manuals endorse the elimination of sexist language. Would the reduction of sexist language influence the thoughts or attitudes of individuals who comply with these standards? Why or why not?

**his 135**

I want to thank you Ms. Sue for the link above. It helped me a ton with figuring out what counterculture is. I had searched so many different key words only to come up short until I found this site. Thank you again!

**2nd grade**

How do you find the perimeter of a letter? for ex. the letter U

**chemistry**

If 3.50g of Na3Po4 and 6.40g of Ba(NO3)2 are added together how many grams of Ba3(PO4)2 will be produce? which reactant is the limiting reactant?

**Chemistry-Equations**

23.9 g its not that hard buddy

**math**

For my class you have to choose from several different scenarios, make up your own equations from the scenario, and then solve and graph them in excel. I have chosen the following scenario: Evaluate whether a prepaid or monthly cell phone plan is most effective for a customer...

**social studies**

Describe how the strong united states action taken in grenada was an attempt to redress an earlier American policy failure in cuba.Be sure to include relevant historical details?

**math**

solve useing the addaditon and multiplication 6-6x > 3-5x x>?

**math**

For my class you have to choose from several different scenarios, make up your own equations from the scenario, and then solve and graph them in excel. I have chosen the following scenario: Evaluate whether a prepaid or monthly cell phone plan is most effective for a customer...

**Lee**

For my class you have to choose from several different scenarios, make up your own equations from the scenario, and then solve and graph them in excel. I have chosen the following scenario: Evaluate whether a prepaid or monthly cell phone plan is most effective for a customer ...

**Linear Equations**

Y-X=4...(EQN 1) X-Y=3...(EQN 2) MAKING X THE SUBJECT IN EQN 2 X=3+Y SUBSTITUTING IN EQN 1 Y-(3+Y)=4 Y-3-Y=4 THE Y GETS ELIMINATED,HENCE THERE IS NO SOLUTION

**Calculus**

Find the derivative of the function: y=(3x^2+5) ln(x+6)

**write a check**

How to write a check for 4,024.29

**Chemistry Lab**

5.00 mL of .00500 M ferric nitrate is added to 5.00 mL of nitric acid and 10.0 mL of .00250 M thiocyanate solution. Calculate the intial Fe^3+ concentration before reaction. So how do I go about doing this?

**physics**

ok so when i did this, my answer for the magnitude came out to be 21.4 N and i got this some solving for the x and y components, and then i summed it up, and plugged in those values in the formula to find the magnitude of the sum. i got 21.4 but it says that i have it wrong. a...

**physics**

A force of 15 N is directed at an angle of 55° above the x-axis. A second force of 15 N is directed at an angle of 55° below the x-axis. What is the vector sum of these two forces? How would I go about finding the magnitude or vector sum of those two forces, and also t...

**Math**

So I don't get what the final answer is suppose to be... cuz I have to use point-plotting which I know how to do.

**Math**

How would you set this to y=? x-4y=5

**chemistry**

What is the mass of 0.425 moles of CaCl2? The molar mass of CaCl2 is 110.98 g/mol.

**chemistry**

How many moles are in 52.3 grams of CaSO4?

**Math, Grade 6**

My best friend needs help multiplying and dividing mixed numbers. I try to help them but it's hard cause shes stubborn. Any help I could give her?

**Maath**

How do you get these answers?

**Maath**

How do you write these two equations in slope intercept form? x-5y-10=0 5x+2y+10=0

**calculus**

Consider the solid obtained by rotating the region bounded by the given curves about the line x = 4. x= 4y^2 , x = 4 Find the volume V of this solid.

**Math/Algebra**

An A frame cabin has a triangler front with a base of 30ft and a height of 20ft. If the front is to be glass that costs $3 per square foot, what will the glass cost?

**Math for teaching. **

if 12 + x= 17, then x equals?

**Trig**

How do you express these problems as single trigonometric function values or as single numbers, using identities? 1. cos^2pi/8-1/2 2. tan34degrees/2(1-tan^2 34degrees) 3. 1/8sin29.5degreescos29.5degrees

**History**

I am in need of some help. I am not looking for the answer, just the direction I need to take. I've search my text book, but I cannot find any specific examples. Here is the question... What where some of the repercussions of Western exoansion after 1800?

**accounting**

the spare parts inventory account shows an unadjusted balance of 450. a physical count shows a blance on hand of 100. What do i have to do! im stuck!

**accounting**

the spare parts inventory account shows an unadjusted balance of 450. a physical count shows a blance on hand of 100

**Economics**

68%

**algebra**

A) Find and interpret the C-intercept for the line (0, 30.52) C(0) = 2.85n + 30.52 – 30.52 = C(0)- 30.52 C(0) = 30.52… C-intercept is at $30.52 billion - 1990 B) Find and interpret the n-intercept for the line (-10.71) C= 2.85n + 30.52 = 0 = 2.85n + 30.52… N = -...

**math**

Dental services. The national cost C in billions of dollars for dental services can be modeled by the linear equation C = 2.85n + 30.52. how would me graph look like

**Lanuguage Arts**

Our teacher gave us terrible instructions on a sentence we are supposed to write. 1) Choose 6 words that best describe who you are. 2)Write a sentence that contains 6 words that best describe you. She showed us an example on the SMART board it was up for two seconds, the bell ...

**Science**

What sequence of events could lead to magma becoming soil?

**History**

Seven Years War

**History**

I am completly lost on this question. Any suggestions? I am not asking for it to be answered, just need some leads! Thanks in advance. Question: Great Britain had many military victories during the war but was unable to gain political control. How did the actions of the coloni...

**algebra**

need help with this problem can someone help me? "At the end of the week one, a stock had increased in value from $5.75 a share to $7.50 a share. Find the percent of increase at the end of week one to the nearest tenth of a percent. At the end of the week two, the same st...

**history**

Where was Sanna Anna's headquarters during the Alamo?

**Physics**

to double check , the correct answer for time is 7.60 sec? and w is 6.61 rad/s?

**Physics**

thanks Damon for your help

**Physics**

The work done in rubbing your hands together s equivalent to the amoun of heat produced. What principle does this demonstrate? I am not sure, is it kinetic energy?

**pe**

what activites are stop start and continous?

**Physics**

is it 1.765N x 2.5M = 4.4J ?

**Physics**

A 0.180 kg ball falls 2.5m. How much work does the force of gravity do on the ball? Do I multiply .180x2.5 to get .45J Thank you for your help

**Physics**

A 0.180 kg ball falls 2.5m. How much wordoes the force of gravity do on the ball? Do I multiply .180x2.5 to get .45J Thank you for your help

**Physics**

A 0.180 kg ball falls 2.5m. How much wordoes the force of gravity do on the ball? Do I multiply .180x2.5 to get .45J Thank you for your help

**HCA210**

Thank you Ms. Sue.

**HCA210**

"describe at least two roles of medical staff and two roles of hospital administration" Do you think they are asking for positions, like a doctor or nurse? Or functions like hiring personnel? I am not sure what the question means by "role", any suggestions...

**History**

I am having some problems listing some difference and similarities in the early north and south colonies. These similarities are political, social and economic. Any ideas? I've looked everywhere with no clue as to where to start. Thanks!

**Critical Thinking**

How to catergorize fallacies

**biology**

describe 2 structures of bacterial cells what they look like and their molecular structure

**math**

Mr. digit wanted to assign a number to each student in his class. He could only use the digits 2, 3, and 6 and each student's number had to have three digits. Can he find enough numbers for all 25 students if repeated numbers are allowed? Will there be any extra numbers?

**4th grade**

Mr. Digit wanted to assign a number to each student in his class. He could only use the digits 2,3 and 6 and each student's number had to have three digits. Can he find enough numbers for all 25 students if repeated digits are allowed? Will there be any extra numbers?

**Algebra 1**

ashley this are the only one's you have right. 1. 2. 3. b 4. 5. c 6. 7. 8. 9. b 10. 11. 12. 13. 14. 15. 16. 17. 18. 19. 20. a

**Trig**

What is sin x= 13/12

**spain**

is leon a country or city in spain???

**geometry**

how do i find the indicated meassure for a parralelogram?

**AP Biology**

Assume that a particular genetic condition in a mammalian species causes an inability to digest starch. this disorder occurs with equal frequency in males and females. In most cases, neither parent of the affected offspring has the condition. (a) Describe the most probable pat...

**answer for riddle please**

A glass of tea costs 1,10 Euro. The tea is 1 Euro more expensive than the glass. How much is the glass?

**7th grade**

HOw do you solve and graph 2t<4

**LANGUAGE ART**

What christmas word can you make out of COCUTOKITEER

**child development**

just heping get started on the assignmenet reading and writing development for course AED-202 I suppose to make chart but I know idea to begin and the APA format with it I pick age five-nine and 10 and twelve to compare the differenece betweent the age group.

**chemistry**

DeltaH and DeltaU are nearly the same in all the following processes except a.F2(g)+H2(g) --> 2HF(g) b.3O2(g) --> 2O3(g) c.CuO(s) +H2(g) --> Cu(s) +H20(g) d.CH4(g) +CI2(g) --> CH3Cl(g) +HCl(g) e.C6H6(s) --> C6H6(l)

**math**

i need help with this. In 1994, the number of cassette singles shipped was 81.1 million. In 1997, that number dropped to 42.2 million. Write an equation that gives the number of cassettes shipped, y, in terms of the year, t. Let t=4 represent 1994. how do yu do this ? thanks (:

**Math**

it should be something that includes (x-1000) . it would be something like this : (x-1000) + x = 4400. im not sure. but its a close guess.

**college medical coding please help!**

Discuss coding for obstetrics, including items covered by the global fee for antepartum and postpartum periods of normal pregnancy. If a patient suffers multiple burns, describe the correct coding sequence. Explain how evaluation and management (E/M) codes are grouped.

**college medical coding please help!**

You've started your first day at Venture Outpatient Surgery Center. Exlain how you would code an operative report.

**Medical Coding and Billing**

Discuss coding for obstetrics, including items covered by the global fee for antepartum and postpartum periods of normal pregnancy.

**chem**

YES, that is correct!

**International monetary relations**

1. The U.S dollar has lost value to the Brazilian real recently. a.What recent events (political, economic, etc.) may have contributed to this? In what ways? b.If general mills build a factory in brazil what impact would the weakening of the dollar have on general mills invest...

**7th grade**

how do you make a time line for the story little house in the big woods from events from the book and events from historical period of book

**math**

A store owner buys 40 shirts for $600. She then adds 40% to her cost and tags each shirt with the same selling price. What is the amount of profit for each shirt? Please help me!!!

**french**

qu'st-ce que natalie aime faire?

**Operation management**

$14,350.00 A (2) B (4) C (1) D (3)

**Statistics**

A random sample of 50 students has a test score average with a standard deviation of 10.9. Find the margin of error if c = 0.90.

**Math**

Write an equation that satisfies the condition parallel to the line y = -4x + 1

**Physics**

A 19 kg wooden crate is dragged across the driveway. The coefficient of kinetic friction between the wood and concrete is 0.64. A. What is the horizontal force needed to drag the crate uniformly? B. Give a possible value for the coefficient of state friction.

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