Thursday

September 18, 2014

September 18, 2014

Total # Posts: 49

**Science**

how are sulfide minerals different from sulfide minerals
*September 17, 2014*

**geometry**

Prove that if angle DAC is 40 degrees and angle ACD is 35 degrees, then angle BDA is 70 degrees. Write a two column proof showing statements and reasons. My teacher said my answer was wrong because BCA cannot equal 40 degrees because lines DA and C are not parallel, but he did...
*April 30, 2013*

**Chemistry**

If you mix 10 mL of 6M HCl (aq) and 2o mL of 3M NaOH, will the solution be acidic, neutral, or basic?
*February 8, 2013*

**Chemistry**

If you mix 10 mL of 6 M HCl (aq) and 10 mL of 3M NaOH, will the solution be acidic, neutral, or base?
*February 8, 2013*

**Parallelogram Question Writing a Proof**

Thank you for not only answering my question but helping me understand! Thank you I greatly appreciate your help! :)
*January 8, 2012*

**Parallelogram Question Writing a Proof**

given: segment SV is parallel to segment TU and triangle SVX is congruent to triangle UTX [the figure has a V on the top left corner, U on the top right corner, X in the middle of four triangles inside and S on the bottom left and T on the bottom right] prove VUTS is a ...
*January 8, 2012*

**PARALLELOGRAM WRITING A PROOF**

given: segment SV is parallel to segment TU and triangle SVX is congruent to triangle UTX [the figure has a V on the top left corner, U on the top right corner, X in the middle of four triangles inside and S on the bottom left and T on the bottom right] prove VUTS is a ...
*January 8, 2012*

**GEOMETRY PARALLELOGRAM QUESTION PLEASE HELP!**

THANK YOU!!!!!!!!!!!! :) ^_^
*January 8, 2012*

**GEOMETRY PARALLELOGRAM QUESTION PLEASE HELP!**

If ON=8x-8, LM=7x+4, NM=x-5, and OL=3y-6, find the values of x and y for which LMNO must be a parallelogram. {O is on the left, N is on top right, L is on bottom left and M is on bottom right} Thank You :)
*January 8, 2012*

**Geometry PARALLELOGRAM question? **

If ON=8x-8, LM=7x+4, NM=x-5, and OL=3y-6, find the values of x and y for which LMNO must be a parallelogram. {O is on the left, N is on top right, L is on bottom left and M is on bottom right} Thank You :)
*January 8, 2012*

**geogrpahy**

well ms.suei think that the answere will be ...........hmmmmm O_o yo mama !!!!!!!!!!!!!!!!!!!
*December 6, 2011*

**Physics**

A ball is thrown horizontally from a height of 19.17 m and hits the ground with a speed that is 4.0 times its initial speed. What was the initial speed?
*September 18, 2011*

**Chemistry**

You have two beakers, one filled to the 100-mL mark with sugar (the sugar has a mass of 180.0 g) and the other filled to the 100-mL mark with water (the water has a mass of 100.0 g). You pour all the sugar and all the water together in a bigger beaker until the sugar is ...
*September 3, 2011*

**PHYSICS**

A hollow brass cylinder is weighed on a pan balance (kitchen scale) which read in kg. The scale reading is 5.56 kg. The brass cylinder is now removed from the scale and is replaced by a beaker of liquid density 1.56 * 10^3 kg/m^3; the scale now reads 17.50 kg. The brass ...
*August 10, 2011*

**Physics**

The question goes like this: The original air-filled apparatus now suffers a temp decrease of 40 degrees C, do the resonant frequencies decrease of increase? Give your reasoning
*August 10, 2011*

**Physics**

Temperature decreases (gets colder) resonant frequencies decreases.. WHY?
*August 10, 2011*

**Physics**

Thank you so much!
*August 10, 2011*

**Physics _ Please please help**

I think it would be; density difference: 8.47 * 10^3 kg/m^3 - 1.56 * 10^3 kg/m^3 = 6.91kg/m^3 Change in weight we have 28.28-17.50= 10.78kg mass/density=volume 10.78/6.91=1.56
*August 9, 2011*

**Physics _ Please please help**

It's ok thank you anyway
*August 9, 2011*

**Physics _ Please please help**

Not sure but thats how the question goes.
*August 9, 2011*

**Physics _ Please please help**

A hollow brass cylinder is weighed on a pan balance (kitchen scale) which read in kg. The scale reading is 5.56 kg. The brass cylinder is now removed from the scale and is replaced by a beaker of liquid density 1.56 * 10^3 kg/m^3; the scale now reads 17.50 kg. The brass ...
*August 9, 2011*

**Math**

Members at a yoga school pay $8 per class plus a one-time $90 membership fee. Non-members pay $12 per class. How many classes would a member have to take to save money compared to taking classes as a non-member?
*May 27, 2011*

**geometry**

If segment AB is a diameter, AB =10, and measure angle ABC =45, how far is segment BC from the center of circle O?
*May 3, 2011*

**Chemistry**

2. what solution can you add to each of the following cation mixtures to precipitate one cation while keeping the other cation in sloution? write complete and net ionic equations for thr precipitation reactons that occur. a) sr+2 (aq) anf Hg+2 (aq) b) ca+2 (aq) and NH4+ (aq) c...
*April 28, 2011*

**physics**

An archer shoots an arrow toward a 300 g target that is sliding in her direction at a speed of 2.15 m/s on a smooth, slippery surface. The 22.5 g arrow is shot with a speed of 38.0 m/s and passes through the target, which is stopped by the impact. What is the speed of the ...
*March 28, 2011*

**physics**

A 68.0 kg person throws a 0.0450 kg snowball forward with a ground speed of 27.0 m/s. A second person, with a mass of 58.0 kg, catches the snowball. Both people are on skates. The first person is initially moving forward with a speed of 2.50 m/s, and the second person is ...
*March 28, 2011*

**physics**

A sledge loaded with bricks has a total mass of 18.9 kg and is pulled at constant speed by a rope inclined at 19.3° above the horizontal. The sledge moves a distance of 19.8 m on a horizontal surface. The coefficient of kinetic friction between the sledge and surface is 0....
*March 20, 2011*

**10th grade**

Consider the following chemical equation: NaOH (aq) + HCl (aq) ® NaCl (s) + H2O (l), the reactant NaOH?
*December 3, 2010*

**chem 106**

I cannot find how the wood's metal is incorporated into the automatic sprinkler system?
*November 5, 2010*

**chem 106**

What is the chemistry of a fusible alloy, and how is one incorporated into an automatic sprinkler system?
*November 5, 2010*

**math**

Neglecting wind resistance,the height,h,in feet, of a sky diver,t,seconds after she junps from an airplane 1,648 above the ground is given by the formula h=-16ft square +1648. If a parachute opens 4.5 seconds after a sky diver leaves the airplane,about how far will she be from...
*October 12, 2010*

**english**

wow I have the same assignment. How the hell am I supposed to know how much "pirate talk" they want??? I'm tempted to do the whole entry in "'yer be scurvy ridd'n, land-lubbing dogs!" format >_> Good luck to my teacher on reading my 18 ...
*March 2, 2010*

**math**

Use the definition of less than to show each of the following a. 2 < 4 b. 3 < 100 c. 0 < 3
*October 19, 2009*

**Chemistry**

I'm having alot of trouble in chemistry. Currently were studying chemical equations and reactions. I would like to know if this is a single or double replacement reaction. 2Li + H2O ---> 2LiOH + H2
*March 13, 2009*

**5th Grade-Fractions**

haha no problem
*January 5, 2009*

**5th Grade-Fractions**

multiply 2/3 and 33. you should get 66/3 then simplify 22 ounces i think but check it over
*January 5, 2009*

**Algebra**

I'm not sure if anyone saw my question yesterday, but here it is again. Even if you can only answer 1 or 2 of the questions, that is fine. I am so confused with the rules of exponents. I know them, but I have a hard time applying them because of all the steps. I was ...
*October 26, 2008*

**Algebra**

I am so confused with the rules of exponents. I know them, but I have a hard time applying them because of all the steps. I was wondering if someone would be willing to answer these questions, because I am unsure if my answers are right. x to the third power y to the negative ...
*October 25, 2008*

**World History**

Because they were not mass-produced. There were not as many brands, just Fords, so there was less competition for lower prices.
*October 25, 2008*

**Algebra**

Does anyone have a Texas Instruments TI-83 calculator, or any other Texas Instruments Graphing Calculators? I am unsure how to graph inequalities with it. Could someone give me a basic guide of what buttons to press? Thanks!!!
*October 21, 2008*

**algebra 1**

What is the general form of the equation of the line shown?
*November 15, 2007*

**Algebra**

Can someone check my algebra answers and help me with the problems I don't understand? 1. n^2-n-20/2n^2 times n^2+5n/n^2-25 answer: n+4/2n 2. (2x-6/21)/(5x-15/12) answer: 8/35 3. 5x-3/6 - x+3/6 answer: 2x/3-1 4. 5x/26 - 2x/13 answer: 1x/26 5. 3x^2/9x^5 answer: 1/3x^3 6. (x...
*June 24, 2007*

**Calc 4**

the question says to sketch the set of points in the complex plane determined by the follow. absvalue(z-(1-i))=1 this is my idea: absvalue(z-(1-i))= absvalue(z)-absvalue(1-i) absvalue(z)-sqrt(2)=1 absvalue(z)=1-sqrt(2) z=(1-sqrt(2))^2=1-2*sqrt(2)+2=3-2*sqrt(2)= x^2+y^2 then ...
*May 11, 2007*

**Math**

the distance between any two bases on a baseball diamond is 90 feet.What is the best approximation for the direct distance from home plate to second base? A baseball diamond's four bases form a square with 90 foot sides. A right triangle is formed by home plate, first and ...
*February 14, 2007*

**Generalization essay**

Generalization ideas: All toys made in China contain lead. Mac computers are better than any others. Listening to music loud damages people's hearing. Private schools are better than public schools. All celebrities will become drug addicts. Politicians are untrustworthy. ...
*February 7, 2007*

**Chemistry**

I'm having trouble getting the right answer for a problem, I'm hoping that by posting my work someone can help me figure out where I've gone wrong. A two-liter soft drink bottle can withstand a pressure of 5 atm. Half a cup [approximately 120 mL) of ethyl alcohol ...
*December 31, 2006*

**Chemistry**

Can you convert density to moles? I am given the density of a substance [0.789 g/mL] but I need to know the number of moles for the equation. You cannot convert density to moles, unless you also know the volume and the molecular formula. (density) * Volume = mass = (# of moles...
*December 28, 2006*

**Chemistry**

A basketball is inflated in a garage at 25 degrees Celsius to a gauge pressure of 8.0 psi. Gauge pressure is the pressure above atmospheric pressure, which is 14.7 psi. The ball is used on the driveway at a temperature of -7 degrees celsius and feels flat. What is the actual ...
*December 28, 2006*

**pigskingeography**

im just kddding guys !!!!!! love yew guys :] i need help with homework guy :]lzzz
*October 2, 2006*

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