Friday

September 30, 2016
Total # Posts: 240

**Geometry**

The midpoint of line segment AB is (1,2). The coordinates of A are (-3,6). Find the coordinates of B. I know how to figure out midpoint, but I'm having trouble figuring out how to do this problem. Any help would be appreciated. :)

*September 23, 2009*

**7th grade**

1/3 converts too?

*August 31, 2009*

**5th grade math**

what is -7+(-3)=_______

*April 23, 2009*

**5th grade math**

Ms. Sue is right a foot does equal 12 inches

*April 23, 2009*

**math**

the area of the circle was measured to be 29/30 of it original area.find the percentage error made in measuring area.

*April 14, 2009*

**SOCIOLOGY**

what are task groups, self/awareness groups

*March 4, 2009*

**Geography**

this is good

*January 30, 2009*

**English-Jane Eyre**

I'm so sorry to trouble you with these typos! And thanks so much for the corrections! But in my computer, I don't have any upside down exclamatory marks. They are both apostrophes. I don't know why it shows that way. (weird!!) And when you said hyphens, doesn't...

*January 20, 2009*

**English-Jane Eyre**

This is a book review that I have wrote for Jane Eyre by Charlotte Bronte. Could you please check if I have any obvious mistakes and give me a comment for this? Or a grade out of 20? 1. Title: Jane Eyre 2. Author: Charlotte Bronte 3. Genre: Romance, Gothic, Bildungsroman 4. ...

*January 20, 2009*

**sequnces**

my teacher said to find out about a sequce and find the man it is named after . it is 1,1,2,3,5,8,13,21........ and i have got to find out the rest

*October 12, 2008*

**math(sequences)**

plese help me

*September 9, 2008*

**math(sequences)**

well my teacher said to find out what this sequece ment and who was the man who invented it .it goes like 1,1,2,3,5,8,13,21 ............... and i have got to find out the rest too the last number

*September 9, 2008*

**trig**

Give the phase shift in radians (along x) of f (x) = sin(x plus 4t+3/7)

*April 17, 2008*

**trig**

Give the phase shift in radians (along x) of f (x) = sin (x - 3pi/5

*April 17, 2008*

**trig**

Please answer b)only a) If a triangle has angles of 35 and 65 degrees, what is the measurment of the third angle? Is it a right triangle? b)Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm

*April 16, 2008*

**trig**

Find all angles of a right triangle triangle RST given that r = 18 cm and s = 20 cm

*April 16, 2008*

**trig**

Work out the following identities a) sin theta/cos theta b) tan theta cos theta

*April 16, 2008*

**trig**

If an angle is pie radians, what is the arc length in radians?

*April 16, 2008*

**trig**

If an angle is 1 radian, what is the arc length in radians?

*April 16, 2008*

**chemistry**

b) Would a precipitate form? The Ksp of AgCl(s) is 1.8 x 10-10. Also, please check if my answer to be is also correct or not When comparing the ion product to Ksp, I see that 0.001375 is greater than 1.8 x 10^-10, therefore a precipitate will form.

*April 16, 2008*

**chemistry**

Question:A solution of AgNO3 (45 mL/0.45 M) was mixed with solution of NaCl (85 mL/1.35 x 10-2 M) a) Calculate the ion product of the potential precipitate. My answer: mol AgNO3 = M x L = 0.45 M x 0.045 M = 0.02025 mol NaCl = M x L = 0.0135 M x 0.085 L = 0.0011475 (Ag^+) = ...

*April 16, 2008*

**chemistry**

Please judge my answer Question:A solution of AgNO3 (45 mL/0.45 M) was mixed with solution of NaCl (85 mL/1.35 x 10-2 M) a) Calculate the ion product of the potential precipitate. b) Would a precipitate form? The Ksp of AgCl(s) is 1.8 x 10-10. Answer: For a, doing the ion ...

*April 15, 2008*

**chemistry**

Please judge my answer, thank you Question: What is the pH of a 1.24 mol/L solution of HCN(aq) if its Ka = 6.2 x 10-10? Answer: It is imperative to initially set up ionization. THen, it becomes important to write the Ka expression, after which setting up an ICE table becomes ...

*April 15, 2008*

**chemistry**

Please judge my answer: Question: 24 mL of 0.39 mol/L acetic acid is titrated with a standardized 0.33 mol/L KOH solution. Calculate the pH of the solution after 17 mL of the KOH solution has been added. Assume the Ka of acetic acid is 1.8 x 10-5. Answer: The equation for this...

*April 15, 2008*

**chemistry**

rats....:)

*April 15, 2008*

**chemistry**

Please let me know if my answer to the following question is correct. Question: What is the concentration of a weak base if its Kb = 1.4 x 10-11 and its pH = 8.75? Answer: Converting pH to H^+ concentration using the formula H^+ = 10^-ph, therefore 10^-8.75 gives an H^+ ...

*April 15, 2008*

**chemistry**

Please let me know if my answer is correct. Question: A weak base with a concentration of 1.3 mol/L has a percent ionization of 0.72%. What is the Kb of this weak base? Answer: Calling the weak base SHO, SHO --> S^+ plus HO^-. I know that the formula for Kb, therefore, will...

*April 15, 2008*

**chemistry**

Please let me know if my answer to the following question is correct. Question: 25 mL of standardized 0.45 mol/L NaOH is titrated with 21 mL of 0.35 mol/L acetic acid. Calculate the pH of the solution. Answer: Add 25 mL and 21 mL to get 46 mL. Add 0.45 mol/L and 0.35 mol/L to ...

*April 15, 2008*

**ALGEBRA WITH PIZZAZZ**

anybody have the riddle to why do elephants have ivory tusks.

*April 6, 2008*

**science**

Does the mass of tap water change when salt is added.

*November 4, 2007*

**government**

So in communism, it is the government that controls the economy whereas in democracy the people control it?

*October 25, 2007*

**government**

Do not they both mean that the government is solely in charge, not the people?

*October 25, 2007*

**government**

What is the difference between a totalitarian and a communist government? Thank you!

*October 25, 2007*

**social studies-Ms. Sue**

Thanks a million!

*October 22, 2007*

**social studies-Ms. Sue**

"Immigrants have frequently been accused of taking jobs from "real" Americans. Politicians who oppose immigrants often use this as a reason. The problem with this argument is that many immigrants work very hard for minimum (or lower) wage that doesn't ...

*October 22, 2007*

**social studies**

Is there a specific reason why these politicians like to use immigrants as a scapegoat?

*October 22, 2007*

**social studies**

According to Wikipedia, "the problems which are purportedly caused by immigrants equally exist amongst native-born populations as well, and that politicians often use immigration as a convenient scapegoat to distract the public from real social, political and economic ...

*October 22, 2007*

**Calculus**

How do you prove area of a circle? Integrate an incremental area dArea = r dr dTheta from r=0 to R, and Theta from zero to 2PI radians. Area= INT INT dTheta rdr dTheta Area= 2PI (1/2 R^2)= PI R^2

*March 1, 2007*

**social studies**

gender issues applied to learning and development Boys’ stereotypes in k-12 to Grade 2 . How these issues will affect boys’ learning and development? Girls’ stereotypes in K-12 TO Grade 2. – How these issues will affect girls’ learning and development...

*December 6, 2006*

**science**

tell me about the carbon cycle. what are the steps in it? http://users.rcn.com/jkimball.ma.ultranet/BiologyPages/C/CarbonCycle.html

*October 31, 2006*