# Posts by Linda

Total # Posts: 1,580

college algebra
how to solve equation in the real number system, x^4 +12x^3 +10x^2-9x+9x+22=0

college algebra
hw to solve equation in the real number system, x^4 +12x^3 +10x^2-9x+9x+22=0

physics
If a 648 N body on a carpeted surface has a μs of 0.86 and a μk of 0.68, what amount of force will be required to start dragging the body across the floor? Make sure to report your answer with the correct number of significant figures

Please explain what the outcome of "" means

physical eduaction
b. amount of equipment available

science
3. One calorie is the energy required to raise one gram of water one degree Celsius. Since we use the joule as the standard measurement of energy, 1 calorie = 4.184 J. If a pot is placed on the stove with 2.4 liters of water at a temperature of 27°C, how many joules are ...

Math
1/(a-1) + 1/b = c solve for a

Math
Aiden drew a square that has an area greater then Dalton's rectangle. what could the sides of austin's square be?

Physics
A ball is thrown vertically upward with an initial speed of 11 m/s . Then, 0.67 s later, a stone is thrown straight up (from the same initial height as the ball) with an initial speed of 25 m/s . How far above the release point will the ball and stone pass each other? The ...

redan. english
I am thinking of a word that is in the ip family and means a baby bird

physics
The resistivity of silver is 1.59 × 10-8 Ω·m. What is the resistance of a section of 12 gauge wire (diameter 0.2057 cm) that is 8.60 m long?

physics
To what temperature must you raise a copper wire, originally at 20.0°C, to double its resistance, neglecting any changes in dimensions? (Does this happen in household wiring under ordinary circumstances?)

college chemistry
Express the concentration of a 0.0620M aqueous solution of fluoride, F-, in mass percentage and in parts per million. assume the density of the solution is 1.00g/mL.

statistics
It is time to go shopping for new clothes for school! You have found a catalog for new clothes. You decide that you will buy ve di erent shirts, four di erent pants, two di erent jackets, and three di erent shorts. The catalog has twelve di erent types of ...

Computer Programming
Need Python pseudocode and program that asks the user to enter the number of packages purchased. The program should then display the amount of the discount (if any)and the total amount of the purchase after the discount. Software co. sells a pkg that retails for \$99. Quantity ...

college algebra
1.build the fraction x+5/x+3 to an equivalent fraction whoes denominator is x^2-x-12 2. add and simplify: x/x+2 +4x-3/x^2-4

Math
Mike can complete a project in 60 minutes͵ and if Mike and Walter both work on the project͵ they can complete it in 40 minutes. How long will it take Walter to complete the project by himself?

physics
A string with linear mass density μ = 0.0279 kg/m under a tension of T = 183 N is oriented in the x-direction. Two transverse waves of equal amplitude and with a phase angle of zero (at t = 0) but with different frequencies (ω = 3420 rad/s and ω/3 = 1140 rad/s) ...

Penn foster 986825rr
According to the analyses of the stories you were asked to read a pair of silk stocking best represents literary c. Symbolism is wrong.

pol201
The heart of Martin v. Hunter’s Lessee was

english
Thank you Ms. Sue!

english
And no matter how(5)______(benign)my manner, she seemed to view me as some sort of threat. At one point, she became irate and yelled, "That's(6)_____(redundant)I don't have time to answer the same question twice." When I asked her about serious issues, her ...

engkish
benign,blase,comprise,condescend,facade,glib,haughty,libel,pseudonym and redundant. When a famous actress arrived in town to work on a movie, an editor asked me to interview her. Because this was my first interview assignment, I felt far from_______(blase) about it. Instead, I...

english
benign,blase,comprise,condescend,facade,glib,haughty,libel,pseudonym and redundant. When a famous actress arrived in town to work on a movie, an editor asked me to interview her. Because this was my first interview assignment, I felt far from_______(glib) about it. Instead, I ...

english
choose from: benign,blase,comprise,condescend,facade,glib,haughty,libel,pseudonym and redundant. Believing he was better than everyone else at the supermarket, Dan was so________(Haughty) that he would rarely ___(benign) to speak to other cashiers. One author was accused of ...

SCI 207
All three of my questions go together. Sorry I did not put it in order. The two processes are evaporation and condensation using a jar and petri dish experiment.

SCI 207
2. Which processes are not represented? How the model could be altered to include these process.

SCI 207
1. Which water cycle processes are represented in this model and by what components?

SCI 207
3. How would the “weather” be affected if the water was at a decreased temperature? What about at an increased temperature?

physics
An electron has an initial speed of 2.95 × 105 m/s.If it undergoes an acceleration of 2.7 × 1014 m/s^2, how long will it take to reach a speed of 5.94 × 105 m/s?

math
The2010 census shows that the population of New Jersey increased by 4.5%. If the 2010 population was 8,791,894, what was the population in 2000?'

Statistics
σ = sqrt[ P * ( 1 - P ) / n ] = sqrt [(0.8 * 0.2) / 100] = sqrt(0.0016) = 0.04 z = (p - P) / σ = (.73 - .80)/0.04 = -1.75. What type of formula is this problem?

Statistics
I am a big shot research scientist at Washington University where I am using 2ebrafish to study neuronal migration. My graduate students measured 40 fish and found that the mean length of the fish sampled was 3.7 cm with a standard deviation of 0.5 cm. Construct a 95% ...

Statistics 220
suppose 59 cars start at a car race, how many ways can the top car finish the race?

chemistry
Suppose 95.0 mL of HCl gas at 25 ºC and 707 torr is bubbled into 298 mL of pure water. What will be the pH of the resulting solution, assuming all the HCl dissolves in the water?

biology
The two main structures that make up a kidney are the A. hilus and cortex B. cortex and medulla c. renal pelvis and medulla

Algebra 2
Ordered pair is from an inverse variation: (3,1/3) how do I find the constant of variation?

math (cant figure it out)
yeah @Tia, those are the right answers for lesson 11 relative frequency on connexus

Physics
A lost shipping container is found resting on the ocean floor and completely submerged. The container is 6.0 m long, 2.2 m wide, and 2.3 m high. Salvage experts attach a spherical balloon to the top of the container and inflate it with air pumped down from the surface. When ...

Algebra 2
How do I solve these inequalities: e^3x>e^x-1 -6log (subscript of 4) x > -24 & how do I solve these: 8^x+1=3 e^x+2=50 8logx=16 I really don't understand how to solve these so can someone please explain them to me?

Chemistry URGENT
I need help understanding oxidation I have a problem that states: The proper assignment of oxidation numbers to the elements in the compound LiAsO3 would be: I think the answer is +1 for Li, +3 for As and -2 for O. I think I am confusing oxidation with ionic charge. PLEASE HELP

Chemistry URGENT/DR BOB
Dalton's Law of Partial Pressure consider the following container of helium at 45C. intially the valve is closed. After the valve is opened what is the pressure of the helium gas. your start points are 2.00 atm and 9.00L. after opening the valve you have 3.00 atm and 3.00L...

Chemistry URGENT
consider the following container of helium at 45C. intially the valve is closed. After the valve is opened what is the pressure of the helium gas. your start points are 2.00 atm and 9.00L. after opening you have 3.oo atm and 3.00L. The answer is 2.25 atm what formula did you ...

Chemistry URGENT
Could someone let me know if I have balanced these equations correctly. balanced equation of the reaction of iron and oxygen to produce iron(ii)oxide. 2Fe + O2 = 2FeO Also if the balanced equation of the reaction of iron and oxygen to produce iron(iii)oxide. 4Fe+302 = 2Fe2O3 ...

Chemistry URGENT
I need help balancing a equation for the combustion of cellulose in oxygen to produce carbon dioxide and water vapor. C6H10O5 = 6CO +5H2O I know this is not correct but I don't know what else to do to get this to balance. Thanking you in advance.

chemistry
I do not understand how to right a balanced equation for the combustion of cellulose in oxygen to produce carbon dioxide and water vapor. I know that cellulose is C6H10O5 but I don't understand how to balance. Thanking you in advance for your help.

Chemistry
I am having a hard time figuring out how to write a balanced equation for the reaction of iron and oxygen to produce iron(II) oxide. I also need a balanced equation for the reaction of iron and oxygen to produce iron (III) oxide. I would appreciate any and all help. Thanking ...

math 8th
there are only four questions on the connexus lesson 9 circle graphs quick check , the answers are 1: C 2:D 3:D 4:B

Chemistry
220 J to kilojoules 350 kj to calories 97.0 kcal to joules 35.0 cal to kilocalories How do I convert them?

algebra
kaylas cell phone plan as a fixed fee of \$45

basic college math
need the answer to track A offers a flat fee of \$25 and \$.40 per mile. truck b offers a flat fee of \$30 and \$.25 per mile

Chemistry
How much water can be produced from the complete reaction of 3.64 L of oxygen gas, at STP, with hydrogen gas? Answer in units of g

Statistics
What is 0.095 on the z-score table or where

Chemistry
The pressure on a gas at -58 degrees Celcius is doubled, but its volume is held constant. What will the final temperature be in degrees Celsius?

Chemistry
Before a trip from New York to Boston, the pressure in the automobile tire is 2.1 atm at 280 K. At the end of the trip, the pressure gauge reads 1.88 atm. What is the new Celsius temperature of the air inside the tire?(Assume tires with constant volume). This is how I did it: ...

College Chemistry
Please help me. I have worked on this for 2 days. I don't understand the ratio of this equation.4Na+O2 to 2Na2O. for question: How many grams of Na2O are produced when 81.ograms of Na reacts?

English
What reasons relating to 1984 means the the reality tv show World's stricktest Parents should be banned.

Chemistry

Chemistry
Okay, I understand that part, but if I use P1V1=P2V2, what happens to the temperature that they gave me? What do I do with it?

Chemistry
Why are n and R the same? Isn't n the mol's and R the ideal gas constant?

Chemistry
A gas occupies a volume of .350 L at a temperature of 18.0 degrees Celsius and a pressure of 980.0 torr. What will be the volume of this gas at standard conditions? Please explain how to do it.

Chemistry
Write the reaction for the synthesis of water vapor from hydrogen gas and oxygen gas and balance it. If you used 0.022 mol hydrogen, how many mol of oxygen would you need in order for it to completely react and have no limiting reactant? Can you please explain in detail how to...

AP World History
1.How did the Atlantic Revolutions influence the development of new states and ideologies? 2. Compare the challenges to the 18th century Muslim world and the causes of the Atlantic Revolutions?

World History
1.How did modern states emerge? 2.What challenges confronted the centralization of Muslim states during the 18th century? 3.How did the different Muslim states respond to these challenges? If you can at least tell me where to find it that would be great.

Chemistry
What would be the volume of 5.0 moles of gas at STP? Can you explain how to do it please?

Chemistry
How do you find the [OH-] of a 1x10^-3 M solution of NH4Cl?

Chemistry
If 0.10 mol of Zn(s) is reacted to 150.0 ml of 1M HCl, what is the concentration of Zn+2 in the solution after the reaction is complete? Assume the solid zinc does not affect the volume.

Calculus
isn't it 2cos(x)

Calculus
it asks for h'(0) not h'(2). I got the answer 5 but the key says the answer is 1

Calculus
Let h(x) = 5g(x) - 3x^2 + 2 sin(x) - 7x, and suppose g'(0) = 2, find h'(0)

Algebra
George built a rectangular pen for his rabbit such that the length is 1 ft more than four times the width. If the perimeter is 292 ft, what are the dimensions of the pen?

college chemistry
kilocalories released when 20.0 g of steam condenses at 100 degrees C. and the liquid cools to 0 degrees C.

Pre-Calculus
1. A sum of money is invested in a business. In each year this investment earns 1 times as much as in the preceding year. If the investment earned a total of \$29,250 in four years, how much did it earn in the fourth year? • CORRECT: \$12,150 How to get it is to find out ...

college chemistry
sorry, Damon. this is a word problem that is on my homework. I think they want to know the kilocalories on this.

college chemistry
to calulate the calories(kcal) in 1/2 cup of soft ice cream that contains 16g carbs, 17g fat, 5g protein. do I multiply 16g x 4 for carbs 17g x 9 for fat 5g x 4 for proteins? then do I do conversion factors for grams to 1/2cup? am I on the right road?

college chemistry
to calulate the calories(kcal) in 1/2 cup of soft ice cream that contains 16g carbs, 17g fat, 5g protein. do I multiply 16g x 4 for carbs 17g x 9 for fat 5g x 4 for proteins? then do I do conversion factors for grams to 1/2cup? am I on the right road?

college chemistry
Ifwater cools to body temp.37 degrees C., how many kilocalories of heat could be transferred to sore muscles?

Chemistry
If 20mL of a 0.100 M NaOH solution are required to titrate 0.25 grams of an unknown acid, what is the equivalent mass of the acid? If the acid actually contains 3 moles of H+ per mole of acid what is the molecular mass of the acid?

Physics
How would the force of gravity between two masses be affected if the separation distance between them were,assume F2 represents the new force and F1 represents the original force.(a)quadruple the original distance F2/F1= also one-half the original distance F2/F1

college chemistry
How many megajoules are released when 9.0 gal of gasoline burns. how do I start to do this problem, and what are the steps to get there. thank you

college chemistry
DrBob222. when you move ice from zero to final T. Do you add 100 cal.?

college chemistry
a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water decreases to 0.0 C. how many grams of water were in the sample.

chemistry
a 42 piece of ice at 0.0 C is added to a sample of water at 8.0 C. all of the ice melts and the temperature of the water decreases to 0.0 C. how many grams of water were in the sample.

Level 5 Math
Suppose that one number contains the same digit as another number, but in resverse order. What is true about the difference of the two number?

Level 5 Math
Suppose that one number contains the same digit as another number, but in resverse order. What is true about the difference of the two number?

Level 5 Math
A bag contains 300 marbles, each of the same size, but in six different colours. Suppose there are 50 marbles of each colour. What is the smallest number of marbles I must pick to be absolutely sure that there are 4 marbles of the same colour among the marbles I have picked ...

Science
An object with a mass of 58.2 kg is accelerated by a force of 320 N. What is the acceleration of that object?

Math
bleh bleh bleh bleh

algebra
define the operation * as a * b =[a-b]. what s the value of 2* (4*7)?

algebra
when 35 to the 12 power is written in decimal notation, what is in the ones digit?

algebra
the length and width of a rectangle are each increased by 20%. by what percent is the rectangles area increased?

Algebra
if the product xy=28 when y =196 what is the value of x? express answer as a common fraction

English
Huckleberry Finn 1) By Chapter 23, Jim has become the most morally upstanding character in the novel. What are some of the reasons Twain might have done this? A)Twain was insinuating that racism is wrong by having the uneducated, unmannered, simple man turn out to be more ...

home work
what does mrs wishy - washy need to give the animals a bath ?

physics
A charged particle of mass 8.39×10−4 kg starts from rest and accelerates through a potential difference of +25,000 V to reach a speed of 1170 m/s. What is the charge on this particle?

Introduction to Computer and Network Hardware
LAN for local library: benefits,protocol,topology of LANS, elements of a backbone

chemistry
For magnesium, is possible to have a relative atomic mass less than 24 or more than 26? (Yes/No) Explain. I don't think it is but I can't explain it. Thank you

algebra
\$45.00

Math
In one revolution a wheel moves forward a distance equal to its circumference. This is because the wheel Always in contact with the floor. 1)A trundle wheel clicks everytime. What is the radius of the wheel I really don't get this question Please Help me Thank you :)