# Posts by robin

Total # Posts: 417

**math**

Thank you!

**math**

I am working on quadratic equations and I have worked a problem down to 3 plus or minus the square root of 361 all over 2... what next?

**Physics true false**

true false The speed of a particle is always positive. True False The average speed of a particle is equal to the magnitude of its average velocity. True False The acceleration of a particle can be non-zero when its speed is constant. True False When the average velocity of a ...

**Geography**

Hydrosphere basic facts and what makes up the hydrosphere?

**Chemistry**

two solutions are prepared using the same solute solution a: 0.27g of the solute disolves in 27.4g of t-butanol solution b: 0.23g of the solute disolves in 24.8g of cyclohexane which solution has the greatest freesing point change? show calculations and explain.

**Chemistry**

two solutions are prepared using the same solute solution a: 0.27g of the solute disolves in 27.4g of t-butanol solution b: 0.23g of the solute disolves in 24.8g of cyclohexane which solution has the greatest freesing point change? show calculations and explain.

**Math**

Rearrange this expression into quadratic form, ax2 bx c = 0 0.20= ((x^2)/(55-x)) where a = 1, and identify the values of b and c.

**grammar, contractions and negatives**

No one, or Someone who bought a car for transportation was not considered sane.

**math**

3 pumps, working 6 hours a day, can empy a water tank in 2 days. How many hours a day must 9 pumps work to empty the same tank in 1 day?

**Math**

A room is 45 m x 15 m. What is the least number of rectangle tiles required to pave the floor of the room, if each tile is 50 cm x 1m?

**Geology**

There is also a graph i can't move it. Building Isochrons and Determining the Ages of Three Rocks Page 15 of 17 For each of the three rocks listed below follow these steps to determine the rock's age of formation. 1. Prepare an isochron by plotting the points that ...

**phicicks**

A 0.300- kg brass block is attached to a spring of negligible mass. What is the value of the spring constant if the vibrational frequency is 0.855Hz?

**Chemistry**

You are asked to prepare a temperature bath that freezes at -25 degrees C, using only water and ammonium sulfate. a. How many grams of ammonium sulfate would you need to prepare this bath if you start with 500 grams of water? b. What would the boiling point (degrees C) of this...

**subject verb agreement**

which verb is correct. 1.Historical fiction (is, are) make-belive stories based on real events or people. 2. An example of historical fiction (is, are) the novel Ben and Me. 3. The main characters (is, are) Bem Franklin and a mouse named Amos.

**Math**

Andrea sells tickets at the Showtime Cinema. On Thursday night, Back to the Future was playing. Adults, senior citizens and children bought tickets at the following rates: Adults $5.00 Senior Citizens $1.00 Children $.10 Andrea sold 100 tickets worth $100. How many adult, ...

**grammar action and linking verbs(mental or physica**

In China, shrines honor ancestors. Is honor an a. action verb(physical)b. action verb(mental) c. linking verb d. not a verb

**English singluar and plural possessive nouns**

1. Slaves lives were terribly hard. 2. They wre at the mercy of owners whims. 3. A runawy life was in danger. 4. Often runaways traveled by the moon light. 5. It could take several weeks travel to reach the Norht. 6. Slaves hid directions in a song words. 7.Abolitionists role ...

**Enlgish, possessive form of singular and plural no**

possessive form of family, brother, suitcase, child, government, pen, train, tree, woman, refugg, families, brothers, suitcases, children, governments, pens, trains, trees, women,refugees

**english, possessive nouns**

Directions: Wrie each sentence. Change the underlined phrase to show possession. The honesty of children is refreshing. The honesty of children is the underline part of the phrase.

**English**

What is the difference between a complex, compound, and compound-complex sentence?

**physics**

Three forces act on a moving object. One force has a magnitude of 61.9 N and is directed due north. Another has a magnitude of 52.0 N and is directed due west. What must be (a) the magnitude and (b) the direction of the third force, such that the object continues to move with ...

**algebra**

Tony went to the racetrack with $80. He won $15 on the 1st race, lost $12 on the 2nd, lost $6 on the 3rd and won $8 on the 4th. How much money did he have after the 4th race.

**American Governement**

Cite five reasons that Americans should trust the government?

**Intro to Social Work**

Your role is as a social worker for a group of low-income tenants of an apartment building who have no heat in their building. The landlord is attempting to raise the rent but the tenants cannot afford the increase. You have brought the parties together for a meeting. What are...

**psychology**

Identify intervention strategies to deal with burnout

**Algebra**

$3,000 balance, 21% rate, $1,500 payment, adjusted balance method

**Physics - Electromagnetism**

For people of the future, Elena's answer for part B is wrong. It's better to use the equation F = q*v(cross)B where B is the sum of the B field created by the 50 A wire and the 30 A wire. ------------------------> 50A | | .18m | ------> v = 150E6 m/s | | .1m <...

**Biology**

If the line for 60 captured is extended downward to zero percent error, what fraction of the total population would this represent? (Compare the actual number in the can to the extrapolated number on your graph.) What more information do I need to provide to get an answer?

**Biology**

A trip to a different stream which had 30 fish marked at an earlier time produced 20 captured fish but none were recaptured with fish tags. Can you estimate the number of fish in this stream? Explain your answer.

**Science**

Should humans strive to preserve a representative sample of all biomes or aquatic zones? Why should humans be concerned with the extinction rate?

**Trig**

Why does 11.4(7pi/18)=133pi/30 ?

**English**

Ms. Sue, thank you, I guess this additional information would have been helpful. Questions 1-4 the choices are, misplaced modifier, dangling modifier, faulty predication or incomplete comparison. Questions 5-10 re: the sentence shifts in, the choices are: person, tense, ...

**Important Operations**

18r4s5+6/-32s+3=? A)6r2s5+3 B)-6r2s5+3 C)6r2s4+3 D)-6r2s4+3

**Algebra**

Which must be a whole number? A. The time it takes to drive 300 miles at 55 mph B. The area of a circle with a radius of 5 feet C. The area of a triangle with base of 15 and height of 9 D. The number of books in 12 bookstores

**Algebra**

69% of the students at a school are involved in after-school activities. There are 598 students in the school. Which is the best estimate of the number of students in after school activities? A. 360 B. 380 C. 420 D. 450

**science**

When water is split into hydrogen and oxygen what happens- is it a change in matter

**math**

During a sale at the local department store, you buy three sweatshirts and two pairs of sweatpants for $85.50. Later you buy three more sweatshirts and four more pairs of sweatpants for $123.00 What is the sale price of each sweatshirt and each pair of sweatpants?

**English**

@SrajMCgin it's sometime hard to find idioms if english is your 3rd language's that's wy some people ask after searching the expressions for them because they can't find them !

**chemistry**

The vapor pressure of water @ 80 degrees C is 0.467 atm. Find value of Kc for the reaction H2O(l) to H2O(g) @ this temp.

**Calculus**

If f(x)=(3x)/(1+x2) find f′(4)______. Use this to find the equation of the tangent line to the curve y=(3x)/(1+x2) at the point (4,0.70588). The equation of this tangent line can be written in the form y=mx+b where m is: ________ and where b is:______

**Math 4th gr**

My nephew has a math problem that I'm not understanding it says what is 300+5,000+7+40,000+4 wrote in standard form

**Physics**

A hockey puck is sliding on frictionless ice. It slams against a wall and bounces back toward the player with the same speed that it had before hitting the wall. Does the velocity of the hockey puck change in this process?

**Physics**

Using Newton's law and the law of universal graviation: F=ma Acceleration is centripital acceleration, so a=(v^2)/r so G(m^2/r^2)=m(v^2/r)

**math**

chad's commission rate is 12%. He invests his commission from the sale of $9000 worth of merchandise at an interest rate of 8%, compounded quarterly. How much is Chad's investment worth after 6 months?

**math**

If a car is traveling at 55 mph in one direction, how long would it take to decelerate, turn around, and catch up with another car going at a steady speed of 100 mph in the opposite direction?

**Physics**

Hi, I am in the middle of a physics lab about sound resonance, but I have no idea what "n" stands for in the equation we have to use, which is L=(2n-1)(wavelength)/4 any help? thanks!

**science**

5.0millimeters

**HEALTH**

PLEASE HELP ME

**HEALTH**

What are the Chronic or long term effects of Cocaine users not crack cocaine users?

**Health**

Ms. Sue I know chronic and long term mean the same thing but Sara on the other page gave me short term effects and now i need the long term effects of Cocaine AND Sneha wht r u tlking about? I need the chronic effects OR as some people say "the long-term effects" of ...

**Health**

Ok yes I know but now I need the Chronic effects: When someone uses Cocaine over a long time what damaging effects can occur? The other one u answered was the short term effects and NOW i need the chronic effects

**Health**

HELP IMMEDIATELY

**Health**

I need them in like bullet ponts

**Health**

Ok, in Health class my TOPIC is Cocaine----- and i need someone to answer the following Chronic Effects: When someone uses this subatance over a long time what damaging effects can occur? P.S. my topic is COCAINE NOT crack cocaine...

**math**

if 7000 is placed in an account with 6 percent intrest compounded annually how many years does it take to triple? rounded to two decimals.

**managment**

“Egalitarian companies are more innovative.What do you think?

**english**

The word CAN is used to refer to A. the ability to do something B. permission to do something C. the need to do something

**English**

Thanks for the website I will work on it

**English**

I said A so what is the correct answer

**English**

Then it would be A right

**English**

saturday

**English**

Which of the following sentences is in the passive voice? A. I just don't see the point. B. I want my MTV. C. A whole case of beer gets drunk every Satyrday night. D. Please don't tell me I missed it. I think its D

**English**

Which of the fllowing is CORRECT? A. She sings bad. B. He runs a well race. C. They won with a lucky shot. D. all of the above

**Math**

Find the radius of the given circumference C= 3.14, r=?

**american government**

write a letter to the a presidential canidate in 2008 based on results of Pennsylvania polls

**Geoscience**

can you help me write out a geological time scale of an area located within stone mountain Georgia? I need a description of the area, how the rock transformed and was dated, picture of a map that has the longitude and latitude of the area picked, the history of the area, ...

**Chemistry**

A metal, , of atomic weight 96 reacts with fluorine to form a salt that can be represented as . In order to determine and therefore the formula of the salt, a boiling point elevation experiment is performed. A 9.18- sample of the salt is dissolved in 100.0 of water and the ...

**Chemistry**

A metal, , of atomic weight 96 reacts with fluorine to form a salt that can be represented as . In order to determine and therefore the formula of the salt, a boiling point elevation experiment is performed. A 9.18- sample of the salt is dissolved in 100.0 of water and the ...

**Earth Science**

I need help finding the geological time scale of stone mountain georgia, with a longitudinal, and latitude map of the area.

**earth**

Hello. I need help writing this outline on the rock I picked, which is granite. I chose it because granite is the most common rock form available in Georgia. I just need information on each area so I can write the paper.

**earth**

Geological time scale summary for stone mountain's granite in georgia, with: description of the Feature Description of Processes Influence of Time on Rock Formation Discussion of Transformation processes Hand Samples Location Types of Rock from map A Map History Age of ...

**com 155**

• Write several sentences describing a recent interaction with a friend or family member about personal finance or credit cards. This interaction may be imagined or real. • Use at least five different pronouns in your sentences. • Identify all pronouns used by ...

**8th Grade Math**

I have an input output table, but I can't figure out the rule. Input: 1, 2, 5, 7, 10 Output:5, 15,?, ?, ?

**Science**

How did living organisms shape our current atmosphere? How did free oxygen eventually begin to accumulate in the atmosphere? What was the role of photosynthesis.

**mathematics**

simplify the expression. 2/x^-3/2

**Conductivity**

for B Ca(NO3)2 is NOT the right answer. i got it wrong.

**Finance**

Production budget Jan-Mar April-June July-Sept Oct-Dec 2011 Qty to be sold 1080000 1360000 980000 1100000 4520000 add Ending Inventory 136000 98000 110000 120000 120000 less openng inventory -94500 -136000 -98000 -110000 -94500 Qty to be produced 1121500 1322000 992000 1110000...

**Criminal Justice**

what attributes make up an effective and ineffective appellate court judges?

**geometry**

if ab=3x+11 bc=2x+19 and cd=7x-17 find x

**college**

What are the methods of judicial selection for federal judges?

**Criminal Courts**

I finished up this assignment last night and my instructor already graded it and I got 100% on it and just wanted to say thank you so much for all your help!!

**Criminal Courts**

Ok I have read the entire case and the wiki link you sent me, and I am still not understanding. This is what the question in my assignment reads as: Use the Crawford opinion as an example ofhow the US Supreme court believes the 6th Amendment has evolved throughout history. I ...

**Criminal Courts**

Okay that is what I thought but now they are asking me to apply this arguement to the case of Crawford v. Washington, and I do not really so any connection. Are you familiar with this case? And if so could you please give me an example of how this are similar?

**Criminal Courts**

What is it meant when it says theory that law is a living body? Is this because like living organisms the law is always growing and changing?

**Psychology**

what is an example of "case study method" psychology?

**physics**

a geosynchronous satellite orbits at a distance from earth's center of about 6.6 earth radii and takes 24 h to go around once. what distance in meters does the satellite travel in one day? what is its orbital velocity in m /s?

**physics**

a geosynchronous satellite orbits at a distance from earth's center of about 6.6 earth radii and takes 24 h to go around once. what distance in meters does the satellite travel in one day? what is its orbital velocity in m /s?

**physics**

A man doing push-ups pauses in the position shown in the figure . His mass m = 80 kg. In push up position: From hands to waist = 40 cm From waist to feet = 95 cm height - heel of foot to ground = 30 cm Determine the normal force exerted by the floor on each hand. Determine the...

**PHYSICS ---HELP!**

A man doing push-ups pauses. His mass is 80-kg. Determine the normal force exerted by the floor on each hand and on each foot. a = 40 cm b = 95 cm c = 30 cm W = mg = 784 N

**PHYSICS ---HELP!**

A man doing push-ups pauses. His mass is 80-kg. Determine the normal force exerted by the floor on each hand and on each foot. a = 40 cm b = 95 cm c = 30 cm W = mg = 784 N

**Physics**

A swimming pool 16.0 m by 9.1 m and uniform depth is 2.0 m. What will be the pressure against the side of the pool near the bottom?

**ethics & law**

I guess I could use the ethics code of the FBI but I can't find that either. Does anyone have a clue??? Thanks

**physics**

A 45000 pound truck is travelling at 5 mph. It hits a stationary object that is fixed in place. What is the force exerted on the object?

**8th grade**

first day he ate eleven.

**medical coding**

Witch one of the following subcategories of the E/M section has separate codes for new and establised patients? A.office and other outpatients B. Hospital observation services C. initial inpatient consultation D. Emergency Department services

**ethics of law**

I guess the part I am not understanding is the "nature" part. I understand why ethics is important in policing but not really sure what it means by describe the nature of ethics?

**ethics of law**

I have to write an essay and I am stuck on one part that asks "describe the nature of ethics and their role in policing?" Help is greatly appreciated.

**Chemistry**

radius of the M&Ms are .625 cm and the SA of the earth is 510,000,000

**Chemistry**

if you had one mole of m&ms, how many times could you cover the surface of the earth?

**pre-algebra**

What is the area of a rectangle measuring 1/3 meter by 1/5 meter. Express answer in units squared [meters2]