Wednesday

September 28, 2016
Total # Posts: 100,167

**Math**

How do I simplify this Complex Rational Expression? 1/x-1+1/x+1 over 1/x-1-1/x+1

*June 2, 2016*

**Reading**

If your replacing part of a sentence the first thing you should do is look at how the sentence reads. In this case your sentence begins with," For people who are more comfortable with just one method". First of all if your comfortable with one method and suddenly you...

*June 2, 2016*

**algebra**

Which function contains this set of ordered pairs? {(–2, –7), (0, 1), ( 3, –17)}

*June 2, 2016*

**U.S. History (Check)(REED)**

Tactics of the nonviolent civil rights movement were influential in helping change people's minds about racism and stopping discrimination because they made many people realize that African Americans were not the enemy and meant no harm. All African Americans wanted was to...

*June 2, 2016*

**Wastewater Treatment**

In wastewater treatment, dimension the following pre-treatment unit for a wastewater treatment plant receiving a dry weather flow (dwf) of 18,000 m3/day. Assume that flow doubles during rain. A bar screen is used to remove the coarse waste. The rain water flow velocity in the ...

*June 2, 2016*

**economics**

mu=p ,according to cardinal using mathematical derivation

*June 2, 2016*

**Pre-Calculus**

Find a polynomial with the zeros -1, 7, sqrt2, and -(sqrt2). Can this be f(x) = x^4 - 6x^3 - 9x^2 + 12x + 14?

*June 2, 2016*

**MAth**

How much interest is earned in two years in two years on $200 in a bank account at an interest rate of 6%

*June 1, 2016*

**MAth**

24

*June 1, 2016*

**MAth**

How much interest is earned in two years in two years on $200 in a bank account at an interest rate of 6%

*June 1, 2016*

**Physics **

A 580-g squirrel with a surface area of 855 cm2 falls from a 5.2-m tree to the ground. Estimate its terminal velocity. (Use the drag coefficient for a horizontal skydiver. Assume that the cross-sectional area of the squirrel can be approximated as a rectangle of width 11.1 cm ...

*June 1, 2016*

**CHECK my answers for DRIVERS ED**

1. A following distance greater than three seconds is advised when you (1 point) are followed by a motorcycle. are driving uphill. are first learning to drive.*** are being tailgated. 2. If the vehicle following you is too close, what action can you take to avoid being hit ...

*June 1, 2016*

**Physics **

A 580-g squirrel with a surface area of 855 cm2 falls from a 5.2-m tree to the ground. Estimate its terminal velocity. (Use the drag coefficient for a horizontal skydiver. Assume that the cross-sectional area of the squirrel can be approximated as a rectangle of width 11.1 cm ...

*June 1, 2016*

**Math**

Good evening, I posted this question this morning. The answer that someone posted was not clear. Could someone please help me with this problem? x:9=2/3:36 The answer is 0.1666 But this is what I keep getting: x/9 = (2/3)/36 x * 36/36= (2/3) * (9/1) /36 (2/3) * (9/1) /36 = 6 6...

*June 1, 2016*

**Physics **

Consider the 50.0-kg mountain climber in the figure to the right. Find (a) the tension in the rope and (b) the force that the mountain climber must exert with her feet on the vertical rock face to remain stationary. Assume that the force is exerted parallel to her legs. Also, ...

*June 1, 2016*

**REED will you check a few more? OR ANYONE**

16. Identify the word or phrase that should be in italics. Riding the Orient Express toward Istanbul, Tom read the novels of Mark Twain. (1 point) Orient Express Istanbul Express Mark Twain**** 17. Identify the word or phrase that should be in italics: He felt like a character...

*June 1, 2016*

**CHECK MY ANSWERS FOR ENGLISH PLEASE**

11. Read the following paragraph found in the selection from "From Emperor to Citizen." The "Articles for Favorable Treatment" stipulated that I could live temporarily in the Imperial Palace without fixing any definite time limit. Apart from three large ...

*June 1, 2016*

**chemistry**

what are the products of a concentrated hydrochloric acid if inert electrodes are used

*June 1, 2016*

**English answer CHECK**

16. Identify the word or phrase that should be in italics. Riding the Orient Express toward Istanbul, Tom read the novels of Mark Twain. (1 point) Orient Express Istanbul Express Mark Twain**** 17. Identify the word or phrase that should be in italics: He felt like a character...

*June 1, 2016*

**Math**

Good morning! Could someone please help me with this problem? x:9=2/3:36 The answer is 0.1666 But this is what I keep getting: x/9 = (2/3)/36 x 36/36= (2/3) x (9/1) /36 (2/3) x (9/1) /36 = 6 6/36 = 6 Thank you in advance!

*June 1, 2016*

**chemistry**

what are the products of a concentrated solution of magnesium chloride if the electrodes used are inert

*June 1, 2016*

**Algebra 1**

Make a box-and-whisker plot of the data. 29, 21, 17, 10, 15, 27, 22, 30 i forget how you do this, can someone explain

*June 1, 2016*

**SchoolCraft**

A gas sample undergoes a reversible isothermal expansion. The figure gives the change ΔS in entropy of the gas versus the final volume Vf of the gas. The scale of the vertical axis is set by ΔSs = 68.4 J/K. How many moles are in the sample?

*June 1, 2016*

**language arts**

ghdtfgkv.hlj

*June 1, 2016*

**language arts**

Najaf xneleiisksownt

*June 1, 2016*

**language arts**

Which event from The Odyssey best highlights the idea that the ancient Greeks greatly disliked greediness?

*June 1, 2016*

**language arts**

Read the excerpt from The Odyssey. He saw the townlands and learned the minds of many distant men, and weathered many bitter nights and days in his deep heart at sea, while he fought only to save his life, to bring his shipmates home. But not by will nor valor could he save ...

*June 1, 2016*

**Physics**

Two speakers driven in a phase by the same amplifier at a frequency of 640 Hz, are 7 m apart. A listener originally at the position of one of the speakers starts walking away from that speaker in a direction that is perpendicular to the line connecting the two speakers. How ...

*May 31, 2016*

**Math**

24

*May 31, 2016*

**physics**

The pressure in a section of horizontal pipe with a diameter of 2 cm is 143 kPa. Water flows through the pipe at 2.80 L/ s. If the pressure at a certain point is to be reduced to 103 kPa by constricting a section of the pipe, what should the diameter of the constricted section...

*May 31, 2016*

**physics**

A horizontal pipe (Venturi Tube) 10.0 cm in diameter has a smooth reduction to a pipe 5.00 cm in diameter. If the pressure of the water in the larger pipe is 8.0 x 105 Pa and the pressure in the smaller pipe is 3.0 x 104 Pa, at what rate does water flow through the pipes. Hint...

*May 31, 2016*

**probability**

If a number is chosen at random from the integers 5 to 25 inclusive, find the probability that the number is a) multiple of 5 or 3 b) even or prime numbers c) less or greater than 18

*May 31, 2016*

**mathematics**

a survey shows that 15% of men in a certain town are tall.if a man is chosen on the street of the town one afternoon, what is the probability that he is short.

*May 31, 2016*

**Math**

1.what are the next three terms in the sequence? -6,5,16,27 A.38,49,60 B. 37,47,57 C.36,45,54 D.36,46,57

*May 31, 2016*

**Public Speaking**

Que5ion of policy

*May 31, 2016*

**Public Speaking**

To persuade employees to commit to recycling” is a:

*May 31, 2016*

**Math(Please Help Assignment Due Today)**

The total surface area of 3D figure

*May 31, 2016*

**Math(Please Help Assignment Due Today)**

The total surface area if 3D figure

*May 31, 2016*

**THANK YOU!**

No need to apologize. THANK YOU SO MUCH!!! all of you are a big help and its great what you do.

*May 31, 2016*

**Answers for 4 and 12 CHECK**

answers for 4 and 12: 4. Supply-Side Economics 12. peace with honor

*May 31, 2016*

**@writeacher**

sorry i posted twice i explained why in the beginning of my questions

*May 31, 2016*

**CHECK my world history answers **

sorry for posting twice but i really would appreciate if someone could check my answers? 1 star* at the end of questions and multiple stars**** at the end of my answer 2. This group, founded by Reverend Jerry Falwell in 1979, was a political organization working to fulfill ...

*May 31, 2016*

**physics **

A body starts to slide over a horizontal surface with an initial velocity of 0.5m/s. Due to friction its velocity decreases at the rate of 0.05m/s^2 how much time will it take for the body to stop?

*May 31, 2016*

**Third Parties**

Are some third parties composed of liberals or conservatives?

*May 31, 2016*

**Algebra**

How do I solve this equation? 1+1/x over x over 1/x-1 By the way this is a Complex Rational Expression.

*May 31, 2016*

**math**

This is how you solve the problem. 3n+1n=0 3(2y)+1(y+3)=0 6y+y+3=0 7y+3=0 7y+3-3=0-3 7y=-3 7y/7=-3/7 y=-3/7

*May 31, 2016*

**physics**

An ice cube floats with 1/9 of its volume below the surface of water, calculate the density of ice.

*May 31, 2016*

**Math (Calculus)**

Find the positive value of the parameter t corresponding to a point on the curve parametrized by {x= t^2 +3 ; y=t^2+t for which the tangent line passes through the origin. I tried with 2t+3 and 2t+1 but it isn't successful

*May 30, 2016*

**physics**

Remember this d=s.t Where d stands for DISTANCE NOT DISPLACEMENT And s for SPEED NOT VELOCITY Way to remember : think about department of science and technology or Dust.

*May 30, 2016*

**Math Calculus I**

let f(x)= 6sin(x)/(2sin(x)+6cos(x)) The equation of the tangent line to y= f(x) at a= pi/6 can be written in tthe form y=mx+b where m=? b=? I found the f': (9*(cos^2(x)+sin^2(x)))/(3cos(x)+sin(x))^2 but i dont know how to fill it into the form. Can anyone help me? Thanks you

*May 30, 2016*

**Read this Dr.Bob222**

I forgot to include that the above problem is accompanied with a virtual lab that would help determine E. However, I dont know how to predict the value of E based on the virtual lab. PS: I dont know how to post a link on this forum and so in order to visit the virtual lab ...

*May 30, 2016*

**Chemistry- Dr.Bob222**

Using the Nernst equation, determine the diluted concentration for both cells. Show your work. Sn| Sn2+(diluted)||Cu2+|Cu Zn| Zn2+ ||Sn2+(diluted)|Sn

*May 30, 2016*

**Physics**

A garden hose has an inside diameter of 10 mm, and water ﬂows through it at 4.0 m/s. At what rate does water leave the nozzle?. Answer in m3/s

*May 30, 2016*

**Physics**

Water ﬂows through a ﬁre hose of diameter 6.35 cm at a rate of 0.015 m3/s. The ﬁre hose ends in a nozzle of inner diameter 1.750 cm. At what speed does the water exit the nozzle?

*May 30, 2016*

**Math ---HELP!!!!!**

Thanks

*May 30, 2016*

**language arts/ english**

please help

*May 30, 2016*

**language arts/ english**

please help

*May 30, 2016*

**language arts/ english **

Stage directions are one element of a drama. In a paragraph, define and provide an example of stage directions from A Surprising Point of View. Then analyze the stage directions. Explain how these directions contribute to your understanding of A Surprising Point of View. ...

*May 30, 2016*

**Chemistry- Dr.Bob222**

Which metal could you use to reduce Cr3+ ions but not Mn2+ ions? Which metal could you use to reduce ions but not ions? Zn Mg Ni Al

*May 30, 2016*

**physics**

A horizontal pipe (Venturi Tube) 10.0 cm in diameter has a smooth reduction to a pipe 5.00 cm in diameter. If the pressure of the water in the larger pipe is 2.0 x 105 Pa and the pressure in the smaller pipe is 5.0 x 104 Pa, at what rate does water flow through the pipes. Hint...

*May 30, 2016*

**Maths**

Two house A and B are 100m apart and B is due east of A. The bearing of a church c from A is 145 and from B is 225, which house is nearer to the church and by how much

*May 30, 2016*

**Chemistry**

Write short note on sigma bond and pi bond

*May 30, 2016*

**Chemistry**

Write on the physical properties of benzene

*May 30, 2016*

**Chemistry**

Using benzene as an example to illustrate substitution reaction

*May 30, 2016*

**Chemistry**

Define indicators giving four examples and their PH ranges

*May 30, 2016*

**Math**

P, Q, R, are arranged sticks. P is 10km north of Q. The bearing of R from P is 223, and the bearing of Q from R is 097 find the distance of R from P

*May 30, 2016*

**Physics**

So, the answer is 0.0351240737 m/s

*May 30, 2016*

**Physics**

23 should be 21

*May 30, 2016*

**Physics**

The math was right, but 23k should be 2k Pa

*May 30, 2016*

**Physics**

At one end of the Venturi Tube the pressure and speed of flowing water is 21 kPa and 0.05m/s respectively. At another point the pressure is 5 kPa. Find the speed of the water at the second point. Answer in m/s

*May 30, 2016*

**Physics**

vf^2=vi^2 + 2ay (vf^2 - vi^2)/2a=y 8.0 L/s= 0.008 m^3/s ((0.008 m^3/s)^2)/2(9.8)=3.26E-6 m

*May 30, 2016*

**Physics**

Water flows at a rate of 8.0 L/s through an opening at the bottom of a tank that has a diameter of 4.0 cm. How high is the water level of this open- top tank?

*May 30, 2016*

**Physics**

At what speed does water escape from a large open-top tank through an opening 2.00 cm in diameter. The opening is 3.00 m below the water level of the tank on the side of the tank.

*May 30, 2016*

**Math**

12 ounce can of Coke and 8 ounce carton of apple juice. She drank all of the Coke and only 1/2 of the apple juice. There are 30 ml in each ounce of liquid. How many ml did Mrs. Heath drink?

*May 30, 2016*

**algebra**

In his physics class, Mario discovered the height, h, in feet of a bouncing basketball after b bounces is given by teh formula: h = 12(2/3)b - what is the height of the ball after 3 bounces?

*May 30, 2016*

**math**

(25)^-1/3 Ã— 3âˆš16

*May 30, 2016*

**maths**

average third number is 12 if two number are 8 and 15 then the third number is?

*May 30, 2016*

**Chemistry **

A flexible plastic container contains 0.833 g of helium gas in a volume of 18.3 L. If 0.203 g of helium is removed at constant pressure and temperature, what will be the new volume?

*May 29, 2016*

**statistics**

How large a sample is needed to be able to estimate the proportion to within plus or minus 3% and be 95% sure the estimate is correct? frame contains approximately 25,000.do not take non-response into account.

*May 29, 2016*

**Chemistry **

A flexible plastic container contains 0.833 g of helium gas in a volume of 18.3 L. If 0.203 g of helium is removed at constant pressure and temperature, what will be the new volume?

*May 29, 2016*

**Intro to computers**

You are an inexperienced Excel user and don’t know how to create your own formulas. You want to use one of the preconfigured formulas but it doesn’t appear in the Formulas tab ribbon. What can you do?

*May 29, 2016*

**Intro to computers**

What does the COUNT function do in Excel?

*May 29, 2016*

**Intro to computers**

You have created a worksheet documenting sales over every quarter since the start of your company. Each column represents a quarter and each row represents a product you sell. Each cell contains the sales generated for that product. You want to find the highest sales figure ...

*May 29, 2016*

**Intro to computers**

You create a formula that adds cells E4 through E19. Three of these cells are blank. What happens?

*May 29, 2016*

**Intro to computers**

How do you change between worksheets inside an Excel Workbook?

*May 29, 2016*

**Physics**

A partially filled bucket of water sits on a scale and its weight is 4.8 N. A piece of metal is suspended from a thread and completely immersed in the bucket (but does not touch the bottom). The scale now reads 7.8 N. Find the volume of the metal.

*May 29, 2016*

**Science **

A man has a weight of 120kg what will be the Weight of same man on the moon

*May 29, 2016*

**Math**

do it yourself

*May 29, 2016*

**PHYSICS**

I don't know

*May 29, 2016*

**Integral calculus**

find the area of the surface generated by revolving about x-axis the upper half of the ellipse 4x^2 + 16y^2 = 64

*May 29, 2016*

**chemistry**

1737 g

*May 29, 2016*

**chemistry**

1737 g

*May 29, 2016*

**Chemistry- Dr.Bob222**

Using the Nernst equation, determine the diluted concentration for both cells. Show your work. Given that [Cu2+] and [Zn2+] are both 2M. Note: I know that the nernst equation is E= E*cell=(-0.0592 V/n)log Q where Q in this case are [Sn2+]/[Cu2+] and [Zn2+]/[Sn2+]. I think that...

*May 28, 2016*

**Chemistry**

2.8 4.1

*May 28, 2016*

**Chemistry- Dr.Bob222**

Using the Nernst equation, determine the diluted concentration for both cells. Show your work. Given that [Cu2+] and [Zn2+] are both 2M. Note: I know that the nernst equation is E= E*cell=(-0.0592 V/n)log Q where Q in this case are [Sn2+]/[Cu2+] and [Zn2+]/[Sn2+]. I think that...

*May 28, 2016*

**Algebra**

2x^3y^3-x^2y^3+2x-y factor by grouping

*May 28, 2016*

**foot hill**

1 (6 + x) - 5 = 12 3 x =

*May 28, 2016*