Thursday

October 8, 2015
Total # Posts: 85,712

**mathematics**

i am greater than a hundred. if you divide me by 25,you will get 5.
*September 30, 2015*

**Algebra II**

Thank you for the explanation Steve! I understand why I was confused and get the problem now. Again, thanks!
*September 29, 2015*

**Algebra II**

By the way, I've gotten to x^20 = x^a, but don't know what to do from here.
*September 29, 2015*

**Algebra II**

Hey all. I'm trying to solve this question, but don't really understand how to do it: If (x^4)^5 = x^a for all values of 'x', what is the value of 'a'? Any help is much appreciated, thanks!
*September 29, 2015*

**Math**

What is a counters to show a group that is greater
*September 29, 2015*

**Chemistry (check)**

Are the following names correct? CN- cyanide ion H2O dihydrogen monoxide ClO2 chlorite ClO4- perchlorate N2O dinitrogen monoxide GeF4 germanium tetrafluoride SO32- sulfite IF3 iodine trifluoride PO33- phosphite NH3 nitrogen dihydrogen ICl3 iodine trichloride SF4 sulfur ...
*September 29, 2015*

**math**

Jim's backyard is a rectangle that is 15 5/6 yards long and 10 2/5 yards wide. jim buys sod in pieces that are 1 1/3 yards wide. How many pieces of sod will Jim need to buy to cover his backyard with sod?
*September 29, 2015*

**what is the defination and example of ethics and m**

what comes to mind when you think of ethic or morality what is a example of a ethical belief and explain the the reason.
*September 29, 2015*

**Calculus 1**

f'(x) = 2x +2y + 2xdy/dx - 2ydy/dx + 1 = 0 2xdy/dx - 2ydy/dx = -2x - 2y -1 dy/dx = (-2x - 2y - 1)/ (2x - 2y) the tangent passes through (2,4) m = dy/dx = (-2(2) - 2(4) -1 ) ------------------ (2(2) - 2(4)) m = 13/4 the equation of the tangent line through (2,4); y = mx + c...
*September 29, 2015*

**maths**

compound interest, A = p (1 + (r/n) )^(nt) where p=pricipal, r=rate, n=number of compounding periods t=years A = 12800 ( 1 + (0.075/2))^2 A = 13778
*September 29, 2015*

**maths**

amount =14792 ci=1992
*September 29, 2015*

**Algebra**

How did you get 2/8's
*September 29, 2015*

**Algebra**

1\8(3d-2)=1/4(d+5)
*September 29, 2015*

**Chemistry**

TiCl4+2H2O=TiO2+4HCl
*September 29, 2015*

**Chemistry**

30g of TiCl4 is mixed with 18g of water to from TiO2 and HCl. Write the chemical reaction and balance it.How much TiO2 is produced. my answer: TiCl4+2H2O= TiO2+4HCl
*September 29, 2015*

**math help**

3x^2-6x-9 State the coordinates of the x-intercepts show work.
*September 29, 2015*

**General Chemistry**

An experiment calls for you to use 100 mL of 0.65 M HNO3 solution. All you have available is a bottle of 2.7 M HNO3. How many milliliters of the 2.7 M HNO3 solution do you need to prepare the desired solution?
*September 29, 2015*

**LA**

They are both used to look up things, and they are both sturdy resources to use. A dictionary is used to look up a definition, but a thesaurus is used to find the synonyms and the antonyms of a word
*September 29, 2015*

**english**

Concise language
*September 29, 2015*

**english**

thank you
*September 29, 2015*

**english**

concise language
*September 29, 2015*

**english**

consistency
*September 29, 2015*

**english**

Soap has existed since ancient times long ago? a. consistency b. parallelism c. concise language
*September 29, 2015*

**english**

No sir
*September 29, 2015*

**english**

which sentence is the best revision? a. My niece is a ballet dancer. b. My niece is a ballet dancer who performs both solo ballets and as a member of the ballet corps. c. My niece is a ballet dancer and I always enjoy attending performances.
*September 29, 2015*

**Calculus**

Find the antiderivatives. 1. f(x)= x sin (x^2) 2. f(x)= x sin x
*September 29, 2015*

**Indices**

Why am i using numbers 3and2. R is 8root2
*September 29, 2015*

**Indices**

The first one 4x2^3/2^3 =4
*September 29, 2015*

**Indices**

Acutally the second one as 4^3/2^4
*September 29, 2015*

**Indices**

Erm the first one?
*September 29, 2015*

**Indices**

P=(64)^-2 Q=1/16^(1/3) R=8root2 Express pqr as a power of 4 P=4^(-6) Q=4^(-2/3) R= ???????? How can i find R? *please show me the method for future reference* Thankyou
*September 29, 2015*

**physics**

draw the figure. right triangle, hypotenuse 10, opposite side 6. theta upstream=arcsin6/10
*September 29, 2015*

**Math**

the sum of the ages of rex, ben and alfred is 36 years, two years ago, ben was 3 times as old as rex was then, 8 years from now, alfred will be twice as old as ben will be then. find their present age.
*September 29, 2015*

**Science**

ayu
*September 28, 2015*

**Math**

5+2x=8
*September 28, 2015*

**Geometry**

Two lines are cut by a transversal such that a pair of alternate interior angles are right angles are the two lines parallel
*September 28, 2015*

**physics**

A block of mass M rests on a block of mass M1 = 5.00 kg which is on a tabletop. A light string passes over a frictionless peg and connects the blocks. The coefficient of kinetic friction mk at both surfaces equals 0.330. A force of 60.0 N pulls the upper block to the left and ...
*September 28, 2015*

**Writing**

I'm trying to make a list of the consequences of pollution. I know about public health and the environment. What else? Also, how can I relate pollution to politics?
*September 28, 2015*

**math**

Jeremy enlarged a picture.The length of the original picture is 8cm and the width is 5cm.The length of the enlarged picture is 10cm and the width is 7cm. A.What percent is the 10cm length of 8cm length? B.What is the area of each picture?By what percet is the area changed? Pls...
*September 28, 2015*

**Physics**

A small crack occurs at the base of a 13.5 m high dam. The effective crack area through which water leaves is 1.55 10-3 m2. (a) Ignoring viscous losses, what is the speed of water flowing through the crack?
*September 28, 2015*

**Physics**

A small crack occurs at the base of a 13.5 m high dam. The effective crack area through which water leaves is 1.55 10-3 m2. (a) Ignoring viscous losses, what is the speed of water flowing through the crack?
*September 28, 2015*

**Physics**

A small crack occurs at the base of a 13.5 m high dam. The effective crack area through which water leaves is 1.55 10-3 m2. (a) Ignoring viscous losses, what is the speed of water flowing through the crack?
*September 28, 2015*

**Chemistry**

1. Write 86,400 s in exponential notation. My answer: 8.6400 x 10^4 s 2. Write 0.15 ns using exponential notation with units of s. My answer: 0.15 x 10^-9 3. 141000 g =? kg My answer: 141 kg 4. Write 1.4 Mg using exponential notation with units of g. My answer: 1.4 x 10^6 g 5...
*September 28, 2015*

**pre-algebra**

-8-5y=12-9y
*September 28, 2015*

**Physics**

A 124-kg balloon carrying a 22-kg basket is descending with a constant downward velocity of 25.2 m/s A 1.0-kg stone is thrown from the basket with an initial velocity of 11.7 m/s perpendicular to the path of the descending balloon, as measured relative to a person at rest in ...
*September 28, 2015*

**Law**

What are five remedies to a Charter breach ?
*September 28, 2015*

**Honors Physics 1**

It would be her horizontal speed.. 4.26cos35.7 Honors Physics?
*September 28, 2015*

**math**

the area of a rhombus jointly as the length of the two diagonal.transform to the equation of variation?
*September 28, 2015*

**physics**

net North is zero. distance=12+19+12 displacement=19E
*September 28, 2015*

**math**

the square of the sum of two consecutive positive even integer is greater than the sum of their square by 48. Find two integers.
*September 28, 2015*

**Physics-Urgent**

A sign with a mass of 23 kg is hanging in two wires both making an angle of 27 degrees with the vertical. Find the tension in one of the wires. Give your answer in newtons (N) and with 3 significant figures.
*September 27, 2015*

**Chemistry **

100mls of propane gas in grams. Pressure is equal to one atmosphere
*September 27, 2015*

**Chemistry**

Look to see which ones are mirror images of that molecule, eliminate those possibililties, those are enantiomers, they will have opposite configurations. (2S, 3S) Diastereomers are non mirror images. So maybe it will have 2S 3R or 2R 3S configurations.
*September 27, 2015*

**Organic Chemistry**

They should be miscible as they are both polar. when doing these you must remember "like dissolves like" polar molecules dissolve polar molecules. nonpolar molecules dissolve nonpolar molecules.
*September 27, 2015*

**psychology**

Gavin, a seventh grader, has more trouble in school than many of his peers, particularly with word problems in math and other areas that aren't concrete and tangible. In spite of high motivation, he still struggles, and new situations and problems “throw him” ...
*September 27, 2015*

** PLEASE HELP**

The mixing of plants, animals, and microorganisms that occurred after Europeans arrived in the Americas is known as A. the Columbian Exchange. B. global interdependence. C. triangular trade. D. global mixing.
*September 27, 2015*

**French**

Also, is it okay to omit the day of the week and say just "le 16"?
*September 27, 2015*

**French**

Are they also pronounced the same way?
*September 27, 2015*

**French**

Are these sentences correct? Dimanche la semaine dernière, j'ai vu ma cousine. Dimanche 16, j'ai joué aux cartes.
*September 27, 2015*

**physics**

A quarterback takes the ball from the line of scrimmage, runs backwards for 9.0 yards, then runs sideways parallel to the line of scrimmage for 17.0 yards. At this point, he throws a 46.0-yard forward pass straight downfield, perpendicular to the line of scrimmage. What is the...
*September 27, 2015*

**public speaking**

sorry c
*September 27, 2015*

**public speaking**

d
*September 27, 2015*

**public speaking**

What type of visual aid is showing the actual thing being discussed? A. Photograph B. Graph C. Object D. Videotape
*September 27, 2015*

**Physics**

Two charges are placed on the x axis. One of the charges (q1 = +5.44C) is at x1 = +3.00 cm and the other (q2 = -27.7C) is at x2 = +9.00 cm. Find the net electric field (magnitude and direction given as a plus or minus sign) at (a) x = 0 cm and (b) x = +6.00 cm.
*September 27, 2015*

**Physics**

A uniform electric field exists everywhere in the x, y plane. This electric field has a magnitude of 5600 N/C and is directed in the positive x direction. A point charge -9.6 × 10-9 C is placed at the origin. Find the magnitude of the net electric field at (a) x = -0.20 ...
*September 27, 2015*

**Pre-Algebra**

194
*September 27, 2015*

**math**

An item is on sale at 40% off the regular price. It is taxed at a rate of 6%. If the final sale price including tax is $57.24, then what is the sale price of the item without tax? What was the regular price of the item? The sale price of the item without tax was $________. The...
*September 27, 2015*

**math**

The sum of the ages of Jose and Valerie is 78 years. 9 years ago, Jose's age was 3 times Valerie's age. How old is Jose now? (A) Translate the given information into an equation using the variable x = current age of Jose. Your equation should contain 78, 3, and 9. Do ...
*September 27, 2015*

**math**

Gregory is 2 years older than Esmeralda. In 5 years the sum of their ages will be 42. How old is Esmeralda now? (A) Translate the given information into an equation using the variable x = current age of Esmeralda. Simplify the left side of your equation. __________________= 42...
*September 27, 2015*

**math**

An item is on sale at 40% off the regular price. It is taxed at a rate of 6%. If the final sale price including tax is $57.24, then what is the sale price of the item without tax? What was the regular price of the item? The sale price of the item without tax was_______ $. The ...
*September 27, 2015*

**math**

The sum of the ages of Jose and Valerie is 78 years. 9 years ago, Jose's age was 3 times Valerie's age. How old is Jose now? (A) Translate the given information into an equation using the variable x = current age of Jose. Your equation should contain 78, 3, and 9. Do ...
*September 27, 2015*

**Economics**

None
*September 27, 2015*

**math**

Gregory is 2 years older than Esmeralda. In 5 years the sum of their ages will be 42. How old is Esmeralda now? (A) Translate the given information into an equation using the variable x = current age of Esmeralda. Simplify the left side of your equation. = 42 (B) How old is ...
*September 27, 2015*

**Chemistry**

Find two interesting factoids for ammonium iodide, sodium acetate, silver nitrate, calcium carbonate, lithium carbonate, aluminum chloride, and potassium iodide. What does "factoids" mean? I am still confused with the definition. Does it mean that the information is ...
*September 26, 2015*

**Chemistry**

A 150.0-g sample of a metal at 69.7°C is added to 150.0 g of H2O at 10.5°C. The temperature of the water rises to 13.6°C. Calculate the specific heat capacity of the metal, assuming that all the heat lost by the metal is gained by the water.
*September 26, 2015*

**math**

Gregory is 2 years older than Esmeralda. In 5 years the sum of their ages will be 42. How old is Esmeralda now? (A) Translate the given information into an equation using the variable x = current age of Esmeralda. Simplify the left side of your equation. = 42 (B) How old is ...
*September 26, 2015*

**calculus**

domain of -9/2+t^2 and 1-4t/2+t
*September 26, 2015*

**math**

a swimming pool is 25m by 15m.A 2-m concrete walk is built around the pool.What is the area of the walk?
*September 26, 2015*

**Phsyics**

To ward off oceanic invaders, a cannon is placed 10 meters from the water's edge, pointing out at sea. The cannon is capable of firing a projectile at a maximum velocity of 100m/s. a) what is the maximum firing range of the cannon? b)If the cannon was placed on a cliff ...
*September 26, 2015*

**differential calculus**

then find the domain of its derivative
*September 26, 2015*

**differential calculus**

differentiate g(t)=3/sqrt(t)
*September 26, 2015*

**Physics**

Fnet = F1 + F2+ . . . Fnet =(10.3 N [North])+(19.5 N [South]) - 15.2 N [South] = 14.6 N [North] Fnet = ma a = Fnet/m 14.6 N [North]/(4.06 kg) a = 3.60 m/s/s [North]
*September 26, 2015*

**SS**

Was Phoenicia in Mesopotamia?
*September 26, 2015*

**Calculus**

You are expecting a tax refund of $4,000 in 4 weeks. A tax preparer offers you an "interest-free" loan of $4,000 for a fee of $50 to be repaid by your refund check when it arrives in 4 weeks. Thinking of the fee as interest, what simple interest rate would you be ...
*September 26, 2015*

**Edible playdough**

Hey guys, Does anyone have a website for edible playdough that does not require a heat source(ie. microwave, stove top)? I am doing this for a demonstration speech.
*September 26, 2015*

**AP Chem**

Also... Hg2(2+) + 2e- >> Hg2(2+) +0.92V Mn(2+) + 2e- >> Mn -1.18V
*September 26, 2015*

**AP Chem **

Write the half reactions and the balanced equation for the galvanic cell Hg(ℓ)| Hg2+ 2 (aq)|| MnO− 4 (aq), Mn2+(aq), H +(aq)| Pt(s). What is the smallest possible integer coef- ficient of H+(aq) in the combined balanced equation?
*September 26, 2015*

**Z table**

The extract of a plant native to Taiwan has been tested as a possible treatment for Leukemia. One of the chemical compounds produced from the plant was analyzed for a particular collagen. The collagen amount was found to be normally distributed with a mean of 73 and standard ...
*September 26, 2015*

**Z table**

(1 point) Women's weights are normally distributed with a mean given by μ=143 lb and a standard deviation given by σ=29 lb. Find the fifth decile, D5, which separates the bottom 50% from the top 50%
*September 26, 2015*

**St Teresas College**

What would be the difference between seawater and pure water in terms of osmotic pressure and vapour pressure?
*September 26, 2015*

**chemistry**

The temperature at which crystal will first appear when a solution is cooled from 60°c to 20°c?
*September 26, 2015*

**chemistry**

The temperature at which crystal will first appear when a solution is cooled from 60°c to 20°c?
*September 26, 2015*

**Arithmetic**

A shopper bought 4 pillow cases that cost $4.98 a piece, 2 fitted sheets that cost $8.29 a piece, and 2 flat sheets that cost $8.09 a piece. What was her total bill?
*September 26, 2015*

**math**

A team won 8 of the 24 games it played in one season. What percentage of the games did it win?
*September 26, 2015*

**Arithmetic**

Two sailors traveled by bus from one point to another. The trip took 15 hours, and they left their point of origin at 8am. What time did they arrive at their destination?
*September 26, 2015*

**PHYSICS**

1.)what is the magnitude of the force experienced by a proton moving at 3 km/s inside magnetic field of strength 0.05T 2.)an electron is moving at 2x10^5 m/s through a uniform magnetic field of 1.4x10^-3 T.what is the magnitude of magnetic force if the velocity of the electron...
*September 26, 2015*

**Arithmetic**

A student must walk 2 miles to get to school. If she walks at an average of 3 miles per hour, how many minutes should it take her to walk to school?
*September 26, 2015*

**Arithmetic**

During a sale, CD'S that normally cost $6.98 each were priced at 2 for $12.50.Pete bought 4 CD'S at the sale price. How much money did he save by buying the 4 CDS on sale?
*September 26, 2015*