# Posts by Kat

Total # Posts: 587

**Math**

The coordinates A(0, 0), B(0, 3), C(4, 3) and D(4, 0) are graphed and connected together. What 3-dimensional shape will be created when this shape is rotated about the y-axis? Provide an explanation and proof for your answer to receive full credit. My answer A line segment is ...

**Pre algebra **

A fair charge an admission fee of $6 for each person. Let C be the cost of admission (in dollars) for P people. Write an equation relating C to P. Then graph your equation using axes

**SS Help**

THANK YOU SO MUCH JANE i was so nervous i was gonna get everything wrong but I got a 100%.

**Social Studies**

jane is right. answers are c, a, d. i got 100%

**Math. Plz walk me though**

Thank you Ms. Sue! I will be sure to talk to the other tutors!

**Math. Plz walk me though **

A picture of the Sun has 12 identically matched points. Suppose you line up two suns directly on top of each other. What is the least number of degrees that you can rotate the top sun so that so the two Suns are perfectly aligned again. Can someone please explain how this may ...

**Social Studies**

the correct answer is D.

**Social Studies**

ms sue, instead of being rude, why don't you help or give links? maybe she/he doesn't understand. no need to be mean

**Art:Please Help Me @Ms Sue**

help man is correct!

**Math. plz help or try.**

yah and i tried. the link diddn't help

**Math. plz help or try.**

I would love it if you helped me. 1. Determine the median of this data set. 5,6,3,2,2,4,8,9 A. 2 B. 4.5 C. 5.5 D. 5 2. What is the mode of the data set? 27,35,57,36,44,57,33,34,66,30,33,42,57,23,35 A. 35 B. 33 C. 42 D. 57 3. Sam conducted a survey in which he asked his friends...

**Math**

in the "()" is that a fraction or is it a division sign?

**8th Social studies **

Explain why Lincolns assassination put the future of the nation in question?

**US history 8th **

what is the grandfather clause?

**Physics**

A 200 gram sample of hot water at 89°C is mixed with 200 grams of cool water at 16°C. Assume there is no loss of heat energy to the surroundings, what is the final temperature of the mixture when they reach thermal equilibrium?

**Physics**

A 100 gram mass of metal at 106°C is placed in 100 grams of cool water at 22°C. The final temperature of the mixture is 25°C. What is the specific heat capacity of the metal?

**PE**

Kobe Bryant is a very famous basketball player who helped his team win many national champion ships. When people use him to advertise their line of athletic wear, what type of advertising are they using? Band wagon emotional appeal price appeal testimonial plz help.

**Science- Earth **

Under which circumstances do neap tides occur? HELP NEED ASAP!!

**Social studies **

1. which is the most important effect of the Bessmer Process?

**science, pysics**

A child having a mass of 37 kg sits 0.2 m from the center of a merry-go-round that is rotating with a period of 36 s. What is the centripetal force acting on the child? What is the centripetal force in Newtons?

**physics, science!**

A child having a mass of 37 kg sits 0.2 m from the center of a merry-go-round that is rotating with a period of 36 s. What is the centripetal force acting on the child? What is the centripetal force in Newtons?

**physics, science!!!**

A child having a mass of 37 kg sits 0.2 m from the center of a merry-go-round that is rotating with a period of 36 s. What is the centripetal force acting on the child?

**physics, science**

What centripetal force is needed to keep a 10 kg object moving at a constant speed of 10 m/s in a circle having a radius of 11 m?

**Math**

A triangular traffic island has a base half as long as its height. The island has an area of 100 m2 . Find the base and the height.

**Chemistry**

Determine the mass of chlorine produced when 200A of current flows for 24 hours through a cell of molten NaCl.

**Chemistry**

Calculate the minimum time, in minutes, required to deposit 40g of copper using a current of 20A.

**la**

well i said this before...you should have studied first.

**Algebra**

Suppose that you work part time as a sales representative at a car dealership. You earn a base salary of $125 per week plus a 18% commission on all sales that you make. Your best friend has exactly the same job at another car dealership but earning a base salary of $85 per ...

**math**

yeah your right that means the perimeter of the larger square is 60 so the answer is c.

**civics**

hey thanks for helping guys but it just dawned me and I understand it know so thanks for helping

**civics**

I live in Clermont Fl. and I have a governor think I looked it up and It said Florida has a governor please help me I'm so confused and I'm almost fished its just these questions and then I'm done

**civics**

Research how your local government works. Briefly explain the process to pass a law (usually called an ordinance or code) in your city or county. To introduce the idea in my city or county, first I would ...

**History Check Please!**

"answers" is 100% right!!! Thanks so much!

**History Check Please!**

Btw also, the girls answer (Olivia N J) was 100% right! There was a question with a picture though and that one was Gothic. I did a lucky guess hahaha.

**History Check Please!**

Thank you's right. That was for the PT or practice test :D

**Math**

Distribute 35-15

**physics**

The wavelength of first line of balmer series in hydrogen spectrum is 6563 A. Find the wavelength of first line of lyman series in the same spectrum.

**Social studies connexus**

"your welcome" is correct :)

**Intermediate algebra**

8x (x-1)=ø

**Geometry**

I need help with this paragraph proof I have no clue what I am doing. Given: QS bisects angle PQR. Angle PQS equals 45 degrees. Prove: PQR is a right triangle. I really need help, I don't want to fail.

**math**

You invest $1,000 at 4% compounded daily. Two years later you take the balance and place it into an account earning 4.5% compounded daily. Determine the value of your account three years after the 2nd investment.

**geometry**

A is -3,4. B is -3,0. C is -1,3. Those are the ABC figures. For A'B'C' A' is -2,-3. B' is 2,-3. C'is -1,-1.

**geometry**

How do I describe a transformation of a triangle that maps ABC onto A'B'C'. So if you can just explain the steps to me that would be great. Thanks

**7th grade Social Studies**

the answers for this quick check are B C D A

**Chemistry**

25.0 mL of an H3BO3 solution were titrated with 29.15 mL of a 0.205 M LiOH solution to reach the equivalence point. what is the molarity of the H3BO3 solution?

**Science - Please Look!**

Thanks so much! :)

**Science - Please Look!**

The senses are used to make which of the following? inferences predictions evaluations ((**observations**)) You walk into the kitchen and see a broken egg on the floor. Which of the following is an inference you can make based on this observation? ((**The egg rolled off the ...

**Chemistry**

use combined gas laws

**all**

someobody plz helpppppppppp

**all**

anyone have some good tips on how to study for bio phys and chem

**LA walk two moons**

what the hell is wrong with you... this is a homework checking website. they were trying to get their answers checked. why tf would you ban them for that

**Math**

ooohkay, thank you!! i needed this so bad :D

**Math**

THANK YOU REINY!!! however, what does RS mean?

**Math**

Prove that the following Trigonometric Identity is valid: 1/(sin(y)-1)-1/(sin(y)+1)=-2sec^2 (y) Please any help or clues on how to do this is needed. I have a sheet that tells me valid identities but nowhere on it has info on -2sec^2 (y) I am sooo clueless here :(

**Chemistry**

The molar solubility of silver iodide in a 0.186 M potassium iodide solution is __________ M.

**Chemistry**

Write a balanced net ionic equation to show why the solubility of Ca(OH)2(s) increases in the presence of a strong acid and calculate the equilibrium constant for the reaction of this sparingly soluble salt with acid.

**Chemistry**

The mass of lead bromide that is dissolved in 250 mL of a saturated solution is____ grams.

**Chemistry**

The solubility of Mg(OH)2 is measured and found to be 9.25×10-3 g/L. Use this information to calculate a Ksp value for magnesium hydroxide

**Chemistry**

When it comes to something being spontaneous, what does it mean? I know its something that goes out without no outside force or something like that but what are example of something that is spontaneous ?

**Chemistry**

What is the change in enthalpy of the following reaction? 2NaBr(aq) + PbCl2(aq) 2NaCl(aq) + PbBr2(aq) Given: NaCl: ∆H = -411 kJ NaBr: ∆H = -360 kJ PbCl2: ∆H = -359 kJ PbBr2: ∆H = -277 kJ Im lost with this. Everytime I try to do it, it doesn't come ...

**Physics**

I'm confused about this question: "A car traveling at 60 mi/h stops in 6 seconds. How far does it travel during this time?" I can't figure out what formula to use, or how to begin solving this.

**Chemistry**

The diagram shows an electrochemical cell with a gold strip (left) and aluminum glasses (right). In your response, do the following: • Label the cathode and the anode, including the charge on each. • Show the flow of electrons. • Describe what type of ...

**Chemistry**

3. The diagram shows an electrochemical cell with a gold strip (left) and aluminum glasses (right). In your response, do the following: • Label the cathode and the anode, including the charge on each. • Show the flow of electrons. • Describe what type of ...

**chemistry**

Cu2+ + 2e- -> Cu Oxidation reaction Cu -> Cu2+ + 2e Reduction Reaction Do I have these right, or are they backwards?

**Electroplating in Chem**

Today I began an electroplating lab between a copper strip and a coin in electrolyte solution with a battery. I am struggling to figure out the copper half-reactions that occured, and whether they are reduction or oxidation. I only need two, and one is Cu2+ + 2e- -> Cu ...

**Algebra**

Does the data in the table represent a direct variation or an inverse variation? x 1 3 4 7 y 5 15 20 35 Write an equation to model the data in the table

**Physixs**

In my homework example, it says that there are 234 nucleons (140+94) bound in the products of this reaction: n-1 + U-235 ---> Ba-141 + Kr-92 + 3n-1 Where are they getting that number??? I though you added up the protons and neutrons to find how many nucleons there are, but ...

**SS**

Just a helper is right got 100% thank you

**chemistry**

Write and balance the equation for the reaction between nitric acid and potassium iodide. The products are potassium nitrate, iodine, nitrogen monoxide, and water. 2HNO3 + KI = KNO3 + I + 2NO + H2O (Did I write the equation correctly?)

**Chemistry**

O.k So would this be correct? K=(4.00 mol/L)(1.25 mol/L) /(1.75 mol/L)2 (3.00 mol/L) K=0.544 mol/L

**Chemistry**

I can plut the numbers into the equation but do I need to do anything with the 25*C?

**Chemistry**

For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. I wrote: [N2O][H2O] / [NO]2 [H2] This reaction takes place at 25°C. At this temperature the concentration of NO is found to be 1.75 mol/L, the ...

**Science**

For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. This reaction takes place at 25°C. At this temperature the concentration of NO is found to be 1.75 mol/L, the concentration of H2 is 3.00 mol/L, ...

**Chemisty**

For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. This reaction takes place at 25°C. At this temperature the concentration of NO is found to be 1.75 mol/L, the concentration of H2 is 3.00 mol/L, ...

**Chemisty**

For the reaction: 2NO(g) + H2(g) <=> N2O(g) + H2O(g) + energy Write the equilibrium constant expression for the reaction. This reaction takes place at 25°C. At this temperature the concentration of NO is found to be 1.75 mol/L, the concentration of H2 is 3.00 mol/L, ...

**Urns and $ - Pre-Algebra**

1 is 24/65, just like PsyDAG said you have to do 12/20 * 8/13 and 24/65 which is B would be the answer

**SS**

Obsid is correct, i got 5/5!

**chemistry**

(7 points) 1. The reaction that you just witnessed in while doing your titration was: HCl + NaOH H2O + NaCl. This equation is balanced. Your unknown solutions contained HCl solutions of unknown concentrations, and your titrant was a 0.75 M solution of NaOH. Use the ...

**Language Arts**

I think it's a but I'm not sure!!! it might be d?

**Physical Education**

Reed, on the other questions regarding this matter, with the same answer, you said they were wrong.

**Social studies**

ms. sue is a b1tch

**Social studies**

the answers to the whole quiz are A C C B B B the last four are short answer questions.

**language arts**

YES CADCC IS RIGHT

**Social Studies**

YES sid is right!!

**intro to computers**

You create a formula in A8 that adds up the numbers listed in A1 through A7. You copy the formula and paste it into C8. What happens in C8? A. The sum of cells A1 through A8 appears. B. The sum of cells C1 through C8 appears. C. The sum of cells A1 through B8 appears. D. The ...

**Chemistry**

An aqueous solution is composed of 7.50 g NaCl (MM = 58.44 g/mol) diluted to 0.100 L. Calculate the osmotic pressure of the solution at 298 K a. 5.83 atm b. 9.22 atm c. 18.3 atm d. 62.8 atm

**Social Studies Quiz, Please help!**

You have all of them right!

**Math**

Grade 11 Unversity Functions. The question was part of the final "Thinking" category for our periodic functions test.

**Math**

The diameter of a car's tire is 60cm. While the car is being driven, the tire picks up a nail. At what times in two complete cycles is the nail at a height of 1cm above the ground. So far, I have calculated the circumference of the wheel (188.5) and I do not know the next ...

**social studies**

@anonymous ikr

**AP Physics**

A 25 degree incline sits on a 1.2 meter high table. a ball rolls off the incline with a velocity of 4 m/s. how far does the ball travel across the room before reaching the floor?

**ART 4 QUESTIONS PLZ HELP ASAP**

thank you sid! i got 100%

**English12**

In Pope's essay on Man, how does the speaker cast humankind's relationship to both God and His creation?

**English12**

What do the speakers of Sir Thomas Wyatt's "Whoso List to Hunt" and Edmund Spenser's "Sonnet 30" have in common? How are they different?

**Math**

Sam is 2 years and his mother is 28 years old. In how many years will Sam's mother be 3 times as old as he will be?

**science**

Specific heat capacity of solid ethanol is 2.419 J/g C. Melting point temperature of ethanol is -114.4 C/ 158.8 K. Enthalpy of fusion of ethanol is 106.4 J/g. Specific heat capacity of liquid ethanol is 2.440 J/g C. 44.0 g of solid ethanol at -134.4 C is dropped into a Dewar ...

**Math**

Joe borrowed $2000 from the bank at a rate of 7% simple interest per year. How much interest did he pay in five years?

**Science**

YES THABK YOU 6TH GRADE SOMETHING I GOT A 100 <3

**science, biology**

is my answer correct ? Both genetics and the environment contribute to the height of a plant. Plants attain their traits from their parents like humans. A plants offspring comes from somewhere, and that somewhere is the parent plant. The parent plant then has traits it ...