Monday

February 27, 2017
Total # Posts: 1,689

**chemistry**

Vinegar is a solution of acetic acid, a weak acid. How can you produce more acetate ions in the solution? CH 'subtext' 3 COOH(aq) H+(aq) + CH 'subtext' 3 COO^- (aq) A. Evaporate some of the water. B. Decrease the pressure. C. Increase the volume of the ...

*September 10, 2016*

**pre calc**

Give the coordinates of the circle's center and its radius. (x−1)^2 +(y+8)^2 =16 a. (-1,8); r=4 b. (1,-8); r=16 c. (1,-8); r=4 d. (-1,8); r=16 e. none of these

*September 9, 2016*

**Math**

6. George is a 35 Kg 8 yr old who is ordered to receive Ancef 1 Gram IV Q 8hrs. The SDR for Ancef is 50-100mg/Kg/day. Determine the SDR for George? 35 ( 50 ) - 35 ( 100 ) mg / day ; 1750 - 3500 mg/ day 6. Is George’s dose of Ancef within SDR? Pt recvs 3000mg or 3 Gm / day...

*August 22, 2016*

**math**

Hello

*August 22, 2016*

**math**

6. George is a 35 Kg 8 yr old who is ordered to receive Ancef 1 Gram IV Q 8hrs. The SDR for Ancef is 50-100mg/Kg/day. Determine the SDR for George? 35 ( 50 ) - 35 ( 100 ) mg / day ; 1750 - 3500 mg/ day 6. Is George’s dose of Ancef within SDR? Pt recvs 3000mg or 3 Gm / day...

*August 22, 2016*

**chemistry help!!! please!!! DrBob222 I need you!!**

i get d. is this correct?

*August 20, 2016*

**chemistry help!!! please!!! DrBob222 I need you!!**

How many atoms of carbon are needed to produce 0.45 mol Al? 3C + 2Al2O3 4Al + 3CO2 A. 2.6 × 1026 atoms B. 9.7 × 1024 atoms C. 3.0 × 1022 atoms D. 2.0 × 1023 atoms I'm really very stuck with this question. please help me!!!

*August 20, 2016*

**chemistry help!!! please!!! DrBob222 I need you!!**

The G value for formation of gaseous water at 298 K and 1 atm is -278 kJ/mol. What is the nature of the spontaneity of formation of gaseous water at these conditions? A. The reaction is sometimes spontaneous. B. The reaction is spontaneous. C. The reaction may or may not be ...

*August 20, 2016*

**chemistry**

How many atoms of carbon are needed to produce 0.45 mol Al? 3C + 2Al2O3 4Al + 3CO2 A. 2.6 × 1026 atoms B. 9.7 × 1024 atoms C. 3.0 × 1022 atoms D. 2.0 × 1023 atoms

*August 19, 2016*

**Algebra**

Plane A is flying at a rate of 560 mph and is traveling 1960 miles from Phoenix to Washington, D.C. Determine how long the flight will take. Which answer choice shows the correct equation and solution for the situation? a)The equation is 1960h=560. The trip will take 3.5 hours...

*July 27, 2016*

**math**

Phone company A charges $20 per month plus $.15 per minute used. Phone company B charges $35 per month plus $.10 per minute used. Write and solve an equation to find the number of minutes you must use to have the same cost for both phone palns

*July 18, 2016*

**Algebra**

The length of a rectangle is 5 in longer than it's width. If the perimeter of the rectangle is 50 in find it's area

*July 9, 2016*

**Mathematics**

A number is subtracted by 150. The result is the same as the number divided by 7. What is the number?

*May 18, 2016*

**psychology**

A researcher strongly believes that physicians tend to show female nurses less attention and respect than they show male nurses. She sets up an experimental study involving observations of health clinics in different conditions. In explaining the study to the physicians and ...

*May 12, 2016*

**English**

It's D

*May 12, 2016*

**math**

jdjdjjjdjfhfuejndn819883

*May 6, 2016*

**social studies**

Alright, I am going to update on my previous post. I took the test and all of "I got ya..."s answers are correct. All 18.

*May 6, 2016*

**social studies**

I've looked through most of "I got ya..."s answers and a lot of them are actually correct. I'm not saying all of them are right or wrong, but the ones I did look through were right.

*May 6, 2016*

**computer**

I think in the society we are in with free backup and $5 flash drives there is no reason people do not backup their critical data. What is your biggest concern about using backup at your house or the Cloud for backing up your files?’

*May 6, 2016*

**Geography**

What Country would you be in if you were at 20° and latitude and 80° E longitude?

*May 5, 2016*

**Language Arts**

Thank you.

*May 5, 2016*

**Math**

1. Simplify. 3x^2+ 5x-5x^2-4x+5-2 A.-8x^2-9x+3 B.2x^2+x+3 C.-2x^2-9x+3*** D.-2x^2+x+3 2. Add or Subtract.(8x – 2y) + (3x – 4y) A.11x+8y B.4x-y C.11x-6y*** D.5x+2y 3.(5x^2-4x-1)-(-4x^2-4) A.-9x^2-8x-1 B.9x^2-4x+3*** C.x^2-4x-3 D.9x^2+4x-3 4.The distance from Newtown ...

*May 5, 2016*

**Math**

Which best describes best describes your ability to graph inequality

*May 4, 2016*

**Psychology**

13.Within the cerebral cortex, the _______ area is found in the occipital lobe. A. visual B. association C. somatosensory D. main auditory 14.Dr. Lombard's research is focused on the capacity of the human mind to store and retrieve information. Her colleague, Dr. Fry, is a...

*May 4, 2016*

**Psychology**

9.By means of introspection, Dr. Marsh attempts to determine the components of things like perception, thinking, and consciousness. By contrast, Dr. Smyth wants to understand what the mind does in producing different kinds of behavior. We can reasonably assume that Dr. Marsh&#...

*May 4, 2016*

**Psychology**

5.Regarding the trichromatic theory of color vision, which statement is most accurate? A. The theory maintains that receptor cells are grouped in pairs, such as black-white. B. Specialized cells in the retina engage in a process called feature detection. C. Specialized cells ...

*May 4, 2016*

**Psychology**

3.If you adopt the _______ perspective, you'll reject an emphasis on what goes on in people's minds in favor of focusing on measurable behaviors that can be objectively measured. A. psychodynamic B. neuroscience C. cognitive D. behavioral 4.Agatha maintains that ...

*May 4, 2016*

**Psychology**

Thank You Larry Vandermark amd Reed.

*May 4, 2016*

**Psychology**

Thank You

*May 4, 2016*

**Psychology**

Dr. Jones is interested in how human behavior may be genetically inherited from remote ancestors, such as chimpanzees. Her field of interest is A. chemical psychobiology. B. evolutionary psychology. C. clinical neuropsychology. D. behavioral genetics. I chose D. Am I right ? ...

*May 4, 2016*

**Psychology**

Lorraine and Albert are discussing neurotransmitters, getting ready for an exam. Lorraine maintains that neuronal dendrites sort excitatory and inhibitory messages through a process of elimination dictated by reuptake activity. Albert, on the other hand, argues that inhibitory...

*May 4, 2016*

**History**

Thank You

*May 1, 2016*

**History**

The United States cut off sales of oil to Japan after the ? A. Japanese attack on Dutch Indonesia. B. Japanese attack on Pearl Harbor. C. Japanese occupation of southern Indochina. D. Japanese occupation of Hong Kong. I think it is C. Am I right please check my answers

*May 1, 2016*

**Language Arts, can anyone check?**

Thanks person above!

*May 1, 2016*

**HEALTH PLZ HELP**

my answers and j got 15/15 (100%). I promis its the right answers I know what it's like to need help😊😊😊😊 1. B 2. C 3. False 4. B 5. B 6. C 7. C 8. B 9. C 10. C 11. C 12. B 13. D 14. D 15. A

*April 30, 2016*

**HEALTH PLZ HELP**

my answers and j got 15/15 (100%). 1. B 2. C 3. False 4. B 5. B 6. C 7. C 8. B 9. C 10. C 11. C 12. B 13. D 14. D 15. A

*April 30, 2016*

**HEALTH PLZ HELP**

Guys piggy is right! There has been debate on reed but all I know is I got 15/15. I was hesitant at first but it worked! So Piggy is right

*April 30, 2016*

**Chemistry**

What are the concentrations of acetic acid (pKa = 4.76) and acetate in a buffer solution of 0.15 M at pH 4.5? Please help me do this problem. I have no idea how to do it.

*April 27, 2016*

**Math**

Four digit decimal between 10 and 20 my tenths digit is twice my tens digit sum of my tenths and my ones digit equals my hundredth digit the sum of all my digits is 11

*April 25, 2016*

**Maths**

Find the coefficient of x^7y^4 in the binomial expansion of (1/4*x -16y)^11 so far i have 11Ck(1/4 x)^11-k (-16y)^k=11Ck*(1/4)^11-k *x^11-k *(-16)^k * y^k

*April 21, 2016*

**maths**

A library opens with a collection of 300 books. During the first week after the opening, an additional ten books are donated to the library’s collection. In each subsequent week, six more books are donated to the library’s collection than were donated in the previous...

*April 21, 2016*

**Pre Algebra**

Kelsey is right, I got 100% on the multiple choice! ur a lifesaver!!!

*April 20, 2016*

**Maths**

Solve z^5 =-1 with the solutions in polar form. I've solved the equation z^5 =1, which I have Letz=r(cosθ+isinθ). Also,1=cos0+isin0. Sotheequationis (r(cosθ+isinθ))5 =cos0+isin0. how would i go about it with the negative 1 though?

*April 20, 2016*

**Science**

The opening to the tracheal system (respiratory system) in insects is the spiracle. trachea. alveolus. bronchus. stomata.

*April 13, 2016*

**Chemistry**

A 21.7 mL sample of 0.18 M KOH solution required 26.3 mL of aqueous acetic acid solu- tion in a titration experiment. Calculate the molarity of the acetic acid solution.

*April 12, 2016*

**Nazi related S.S**

I didn't know the Jehovah's witnesses were the only group that could of escaped just by resigning their religion or join the army.

*April 10, 2016*

**Nazi related S.S**

and I will

*April 10, 2016*

**Nazi related S.S**

thank you soo much Im doing this for a research for the holocaust

*April 10, 2016*

**Nazi related S.S**

What would happen if one of the German soldiers would turn against Hitler? just need a site or an explanation please thanks,

*April 10, 2016*

**HELP PHYSICS!! WORK**

How much work is it to push a box (mass 190 kg) up an incline (angle 16 degrees with the horizontal) that is 8.3 meters long, if the coefficient of kinetic friction between the box and the incline is 0.6?

*April 10, 2016*

**Chemistry**

A ground state hydrogen atom absorbs a photon of light having a wavelength of 93.03 nm. It then gives off a photon having a wavelength of 1005 nm. What is the final state of the hydrogen atom? What is the equation to solve this?

*April 7, 2016*

**English**

Answer

*April 7, 2016*

**Chemistry**

What is the [H3O+] of a solution if its pH = 8.26?

*April 7, 2016*

**His**

4. The United States cut off sales of oil to Japan after the A. Japanese occupation of southern Indochina. B. Japanese occupation of Hong Kong. i chose B please can you check my answer

*March 31, 2016*

**HISTORY**

5. Regarding the Ottoman territories during the period immediately following World War I, which of the following statements is false? A. In 1919, Mustafa Kemal began organizing Turkish resistance. B. In 1921, Greek forces advanced almost to Ankara. C. Defying Allied pressure, ...

*March 31, 2016*

**Calculus**

Using a linear approximation or differentials, approximate:(26.98)^(3/4) thank you for your help!

*March 13, 2016*

**Art**

"thickgirl" is right. Thanks.

*March 11, 2016*

**science**

Can you be more specific with your question? It would clear things up :)

*March 10, 2016*

**Science**

1. B 2. A 3. C 4. A

*March 9, 2016*

**Math**

Nevermind I answered it

*March 8, 2016*

**Math**

A skydiver prepares to jump out of a plane. Explain how gravity and air resistance will affect the motion of the skydiver before and after he or she opens the parachute.

*March 8, 2016*

**math**

find the angle between u(-1,4) and V(3,-4)

*March 4, 2016*

**math**

using DeMoivre's theorem solve (-3,+3i)^4

*March 4, 2016*

**Art**

Thank you KillJoy :D

*February 29, 2016*

**physics 12U**

A driver parks his car on a hill but accidently leaves it in neutral. The car starts from rest and accelerates down the 45 m long hill. It take the car 12.3 seconds to reach the bottom of the hill. a) What is the final velocity of the car at the bottom of the hill? (ANS: 7.3 m...

*February 21, 2016*

**Science Please Help!!!**

The answer is D and I will be back later with all my answers hold on

*February 17, 2016*

**Algebra**

My question is: b-3= -4 A.) 7 B.) 1 C.)-1 D.)-7** I think it may be D.). I would just like someone to check my answer.

*February 16, 2016*

**chemistry**

when 130.4 mL of 0.459 mol/L silver nitrate solution is mixed with 85.23mL of 0.251 mol/L aluminum chloride solution, a precipitate of silver chloride forms. Find the mass of this Precipitate.

*February 15, 2016*

**Chemistry**

estimate the heat of vaporization of water if the vapor pressure is 17.54 torr at 20C and 149.4 torr at 60C. R=8.314 J/mole K. I can't remember how to set up the problem. Would someone be able to send me the formula? Thank you

*February 15, 2016*

**Maths**

The vector v has magnitude 17 and makes an angle of 105 with the positive x direction. Express v in terms of components, with i and j being unit vectors pointing in the positive x and y directions.

*February 14, 2016*

**physical science**

Umm, I think I know the answer, give me a second.

*February 9, 2016*

**statistic in probability**

Can you say word for word on what the question is so that I can help you answer it?

*February 9, 2016*

**statistic in probability**

Is the add 12 minutes long?

*February 9, 2016*

**science**

Well, which ever it is it's probably most likely 100m minus 35m or it's 100m plus 35m... (sorry that I can't help much)

*February 9, 2016*

**science**

Is it asking you for the distance from the starting point to where you ended up? (100m - 35m) Or is it asking you for the entire amount that you walked? (100m + 35m)

*February 9, 2016*

**Chemistry**

Two fixed charges, -4μC and -5μC, are separated by a certain distance. If the charges are separated by 20cm, what is the magnitude of the electric field halfway between the charges? My textbook says that the formula for electric field is (kq)/r^2. But Since I have ...

*February 9, 2016*

**Chemistry**

I DNT KNW

*February 9, 2016*

**civic**

ten factor that protect human rights

*February 9, 2016*

**History**

Thank You so much for your help

*February 8, 2016*

**History**

How did the Ming officials manage government when emperors were incompetent? How did this ultimately contribute to the Ming’s decline? Please help me I'm suck on this

*February 8, 2016*

**history**

How did the Ming officials manage government when emperors were incompetent? How did this ultimately contribute to the Ming’s decline?

*February 8, 2016*

**history**

How did this ultimately contribute to the Ming decline? please help me i'm suck on this

*February 8, 2016*

**physics**

A motor car of mass 800kg travelling at 20m/s is brought to rest by brake in 100m.calculate the average braking force required.in physics

*February 7, 2016*

**physics**

A motor car of mass 800kg travelling at 20m/s is brought to rest by brake in 100m.calculate the average braking force required.in physics

*February 7, 2016*

**Physics PLEASE PLEASE HELP! CONFUSED**

I am so lost and confused right now with this question. I might have a quiz. Help me understand before this pop quiz!!!! THANKYOU A diver runs horizontally with a speed of 1.2 m/s off a platform that is 10.0 meters above the water. a) how long before the diver hits the water? ...

*February 3, 2016*

**True & False explanations Physics**

When a projectile is fired at 45 deg. angle and is in free fall, the only point along the path that the acceleration of the object is zero is the instant when the object is at the highest point of its path. Answer: False Can someone explain how? 2.) An object with acceleration...

*February 3, 2016*

**physics**

I don't understand. derive a general equation that will predict the horizontal range of a projectile that is fired from one vertical position and ends at any other vertical position with an initial velocity, V1, at an angle, pheta, from the horizontal. The equation should ...

*February 3, 2016*

**science help PLS**

no it is b

*February 2, 2016*

**Elementary Math**

correct.It can be 6/10

*February 1, 2016*

**Pre Algebra**

how do you find the slope?

*January 29, 2016*

**Math**

Assign a variable to the number of eggs Mia has, say mm. Then, because we are given that Sofia has twice the number of eggs Mia has, Sofia has 2m2m eggs, and Pablo, having three times the number of eggs as Sofia, has 6m6m eggs. For them to all have the same number of eggs, ...

*January 28, 2016*

**Math**

Okay, thanks

*January 28, 2016*

**Math**

I tried again with another question: What percent of 62 is 58? Use the percent equation (which is part=percent times whole) 58=62x Divide 62 on both sides. I rounded to the nearest tenth and got 93.6%

*January 28, 2016*

**Math**

Thank you!

*January 28, 2016*

**Math**

Okay

*January 28, 2016*

**Math**

So when you round it, you get .01 %, right?

*January 28, 2016*

**Math**

Thanks

*January 28, 2016*

**Math**

What percent of 88 is 33? Solve using Percent equation. I solved for x in the equation 33=88x and I got 0.4. Did I do it right?

*January 28, 2016*

**Math**

Find the unit rate then multiply by 31 on both sides of the ratio

*January 28, 2016*

**Chemistry**

A student has placed a mixture of CaO and CaO, 4.88 g of dough into a flask containing 1.46 L of carbon dioxide at 35 ° C and 746 mmHg. After completing the reactions, it found that CO2 pressure had decreased to 353 mmHg.Calcule the percentage composition of the mixture

*January 28, 2016*