Thursday

December 18, 2014

December 18, 2014

Total # Posts: 378

**chemistry**

Under standard conditions for all concentrations, the following reaction is spontaneous at 25 ¢XC with EO = 0.16 V. + - 02 (g) + 4 H (aq) + 4 Br (aq) -+ 2 H20 (I) + 2 Br2 (1) If [H+] is a?justed by adding a buffer of 0.10 M NaOCN and 0.10 M HOCN (Ka = 3.5 x 10 ), what ...
*December 15, 2014*

**Physics**

A man is holding an 8.00kg vacuum cleaner at arm's length, a distance of .550m from his shoulder. What is the torque on the shoulder joint if the arm is held at 30degrees below the horizontal?
*November 23, 2014*

**math**

The temperature x in °f is related to the temperature in °c by the relation c(x) = 5/9 (x-32).What is the slope of graph in (b)?
*November 6, 2014*

**Chemistry**

If 0.85 mol of a diatomic molecule has a mass of 23.8g, identify the molecule? We tried to multiply .85 mol and 23.8g and then multiply by 2 to get an answer, but I believe I might be heading in the wrong direction.
*November 4, 2014*

**Math**

Mrs. Warren is making a snack for her class. The recipe calls for chocolate chips and peanuts in a ratio of 4:2. If Mrs. Warren needs 15 cups of the snack, how many cups of the chocolate chips does she need?
*September 25, 2014*

**geometry**

You're welcome!
*September 2, 2014*

**geometry**

If a line bisects an angle, it means that the line halves the angle into two equal angles. Therefore, angle ABD equals angle DBC. Hopefully this helps. If you still need further assistance, you can reply to this thread. Good luck!
*September 2, 2014*

**Engineering**

Determine the relationship between the radius and height of a right-cone with a volume of 300 cm3. This is all there is to the question and I'm not sure what my teacher wants for an answer.
*September 1, 2014*

**Chemistry**

Jimmy is riding his bike at a speed of 5.5m/s. How long will it take him to go 2 miles? I tried using Dimensional Analysis, but how could you go from 5.5 miles a second to 2 miles?
*August 24, 2014*

**math **

Maria, who has been a computer consultant for the past 5 years, has 100 regular customers. Her standerd fee is $90 per hour. She decided to raise her fees, and folowing some research and based on her previous experience, she expects that she will lose a customer for every $1 ...
*August 4, 2014*

**math**

If the price of an item, after adding the 7.6% sales tax, is $53.80, what is the price of the item, before tax?
*July 21, 2014*

**math**

please help me this question. 1/a+1/b+1/c=2/1 c¡Ùb¡Ùa find a£¿b£¿c's Positive integer solution please help me thanks
*May 29, 2014*

**math**

please help me this question. 1/a+1/b+1/c=2/1 c¡Ùb¡Ùa find a£¿b£¿c's Positive integer solution please help me thanks
*May 29, 2014*

**Math**

1/a+1/b+1/c=1/2 aâ‰§bâ‰§c Please help me The math question
*May 21, 2014*

**geometry**

Do you know what the formula for surface area is?
*May 9, 2014*

**Algebra 1**

That looks right to me. Are you allowed to use a calculator? What do you get for the value of x?
*May 9, 2014*

**Algebra 1**

For number 2, can you show your work? What do you have so far?
*May 9, 2014*

**math**

Do the two fence meet at the same place where the rope is attached? If so, what do you think the diameter of the circle is in which the cow can roam?
*May 9, 2014*

**MATH PLS HELP CHECK ANSWERS**

For number 3 and 6, you can simply test solutions by substituting each of the x and y coordinates for x and y in the equation.
*May 8, 2014*

**Math**

The cube is 1ft x 1ft x 1ft, so what is the volume? The rectangular solid is (1/8) ft x width x length. I'm not sure any assumptions can be made about the width and length. Does the question include any additional details?
*May 8, 2014*

**ALGEBRA**

Length is l. Width is w. So what is the expression for the relationship between l and w? Once you get this, can you come up with the expression for the distance between the two corners?
*May 8, 2014*

**computer problem**

Many day ago my seddenly my computer can't open. The power botton can't light. Please help me.
*May 6, 2014*

**Science**

in a cladogram, a branch point represents a(n)____________ and a branch that ens without leading to living species represents___________. a. common ancestor,;extinction b.mutation; punctuated equilibrium c.extinct species: common ancestor D.common ancestor; speciation
*April 29, 2014*

**math**

Okay, do you know anything about D, E or F? Or, do we just assume they are points that could be anywhere on the plane?
*April 23, 2014*

**math**

Is DEF also a triangle?
*April 23, 2014*

**Math**

Do you have any other details, such as, what his previous time was?
*April 23, 2014*

**math**

Can you find the probability that is lands heads twice, thrice, four times, etc... And then add all those probability together?
*April 23, 2014*

**math**

Do you have any work to show on this question so far?
*April 23, 2014*

**math**

Interesting question. Do you have any work on this so far? If the path is 2 feet wide, how long can she make the path with only one bag of pebbles?
*April 23, 2014*

**math**

If you consider sea level to be 0m, then one diver is at -30m, and the other diver is at 5m. Does this make sense? If it makes sense, then what is the distance between these two divers?
*April 23, 2014*

**math**

Where are you getting stuck exactly? I can't read your mind ya know! ;)
*April 23, 2014*

**math**

You might use algebra to solve this. (Hooray! Everyone loves algebra!) Let's create some variables: s = number of sweets n = number of sweets each child gets. So we have sweets shared equally among 20 children: s / 20 = n Also, 1 more sweet and 1 more child means 1 less ...
*April 23, 2014*

**math**

Hint: If you have a side of the square, then you can get the diagonal from one corner of the square to the other.
*April 23, 2014*

**algebra**

I was going to answer you, but then I tripped so I couldn't. Just kidding. The square root of 8 is a constant. It does not change as x changes. Therefore the graph would look like a line rather than a square root curve. In order for the function to be a square root ...
*April 17, 2014*

**exam # 013050**

Well, what sort of help do you need? You'll need to post a homework question, show your work, and explain where you are getting stuck.
*March 10, 2014*

**Math help, anyone?**

On the internet, look up what a right triangle is. Then, come back to this website and tell me what a right triangle is. From there, we can continue to answer your original question.
*March 6, 2014*

**Math help, anyone?**

Well to start, do you know what a right triangle is?
*March 6, 2014*

**Physics 2**

Interesting question. Do you have any thoughts on this?
*February 21, 2014*

**calculus**

Well if you only have five days total, hopefully it only takes the remaining one day to solve it! Otherwise, you're in trouble!
*February 1, 2014*

**math**

Find out what percentage of the tank is filled every hour, and then calculate how long it would take to reach 100%.
*January 31, 2014*

**Math**

Can you post the question again with proper capitalization and punctuation? I can't even understand the question as you posted it.
*January 31, 2014*

**Acne**

I have had acne for several years. I was finally able to cure it by: 1. taking multivitamins. 2. eliminating caffeine from my diet. Other things that helped me include 3. eliminating all sugared drinks (pop, juice, fruit juice) 4. drinking lots of water 5. getting a full 8+ ...
*January 31, 2014*

**Algebra**

Yes, you are correct. Well done :)
*January 27, 2014*

**Consumer Math**

Are you supposed to use a calculator or do the division on paper?
*January 27, 2014*

**Physics**

Draw a diagram of forces. Then balance all forces on the stick.
*January 27, 2014*

**Level 5 Math**

I don't get the question. Two different numbers share a digit. "But in reverse order"? What does reverse order mean? What is being reversed?
*January 26, 2014*

**POL 201**

Which question on your quiz are you having trouble with? Please show your work, and we would be glad to help you.
*January 25, 2014*

**College Algebra**

Well what do the words "and" and "or" imply? Do each of these words point to an intersection or union?
*January 25, 2014*

**Algebra**

What do you have to solve exactly? Do you by chance mean simplify? Should there be an equal sign in the expression that you typed?
*January 23, 2014*

**Math**

Yes, you are correct. Well done.
*January 23, 2014*

**Math**

What do you think? Do you have any thoughts on this? If you had to guess, what would be your answer, and why?
*January 23, 2014*

**Algebra 1**

Yes, you are correct. $50 must be greater than the total cost of 0.12m + $20 Good job.
*January 23, 2014*

**Algebra 1**

The answer is not D. $50 must be greater than the total cost. If the answer were D, then this would imply that $50 is less than the total cost.
*January 23, 2014*

**tech**

The phrase "responsibility for intellectual property" is vague. Social networks make users responsible for ensuring that they (the users) have permission to upload whatever they are uploading.
*January 23, 2014*

**Tech**

Yes, the best answer is D. However, it is worth nothing that many people have been sued (successfully) for stealing ideas.
*January 23, 2014*

**Tech E.D**

Again, the term "copyrighted" is vague. Damon's answer is precisely correct. However, I'm afraid there is a good chance that the answer your textbook or teacher is looking for is B. ideas.
*January 23, 2014*

**BUS 401**

Which of the following statments regarding the cost of preferred stock is true? a.It is typically found by solving for an annuity’s discount rate. b. It is tpically found by solving for an annuity's due's discount rate. C. It is found similarly to a perpetuity'...
*January 19, 2014*

**math**

Moffett’s Candy Factory makes candy in the shape of cylinders. The net of a cylindrical piece of candy is shown below. two circle with diameter of 4cm each and a rectangle with a lenght of 1.5 cm wha is the total surface area of this piece of candy?
*January 19, 2014*

**science**

Which one is more right? Please help!!
*December 9, 2013*

**science**

which of the following will make it harder in the future to develop sustainable methods for humans using resources? A. there will be fewer renewable resources B.more humans will populate the earth C.biodiversity naturally reduces over time D.more humans will recycle materials
*December 9, 2013*

**math**

D 7/8
*December 3, 2013*

**MEDIA**

Hello, I am the lead web developer for Jiskha.com. I am truly sorry that dating ads were displayed while you were browsing this website. I completely agree that dating ads are inappropriate on an educational website that is geared toward K-12 students. I have taken extra steps...
*November 3, 2013*

**math**

Who proved this statement using deductive reasoning? If a, b, and c are consecutive positive numbers, then a+b+c is divisible by 3.* CARL: Take 4, 5, and 6. 4 + 5 + 6 = 15 which is divisible by 3. So it's true. LAYLA: If we have n, n+1, and n+2, and add them together we ...
*October 18, 2013*

**fast answer plss**

Since this is algebra, do you know what algebraic equations you should be writing out and solving for?
*October 11, 2013*

**programming c#**

Looks like the first class performs all of the functions, and the second class calls of the functions to make sure they are performing properly. Do you have any specific questions about this?
*October 2, 2013*

**MaTh**

First, you need to list all of the integers that match the condition. Do you know what these integers are?
*September 2, 2013*

**Math**

First you need to find out what 10/20/30 means.
*August 31, 2013*

**Pseudocode**

Hi, I am a computer programmer and would be glad to assist you with this question. Do you have any ideas on how to get started? What programming language are you writing in?
*August 25, 2013*

**MATH.**

You'll need to setup algebraic equations and then solve the system for the "other number". Do you know how to get started?
*August 11, 2013*

**marketing**

Hello, what is your question here? Do you have any work or ideas to show?
*August 11, 2013*

**chemistry**

Hello, thank you for using Jiskha Homework Help. It looks like someone else has already posted a similar question, and some helpful responses have been posted as well. You can view the question here: http://www.jiskha.com/display.cgi?id=1264970115
*August 5, 2013*

**Math**

You need to solve this system of equations: S = J - 4 (J + 4) = S * 2 Do you have any thoughts on how to do this?
*August 5, 2013*

**Math**

You can rewrite the sentences as algebraic equations: Sam is four years younger than Jason. S = J - 4 In four years, Jason will be twice as old as Sam is now. (J + 4) = S * 2 So your two equations are: S = J - 4 (J + 4) = S * 2 Now, use algebra to solve for S. I hope this ...
*August 5, 2013*

**mathematics**

Hello, thank you for using Jiskha Homework Help. 1. First, you need to find the slope of the given line (3x+2y=6). 2. Then, once you find the slope, determine the perpendicular slope. 3. Once you have the perpendicular slope, determine the equation for a line which goes ...
*August 5, 2013*

**Calculus 1**

I'm asked to find max and min of: L(t)=12+2.8sin((2pi/365)(t-80). I find the derivative as: L'(t)=(5.6*pi/365)*cos[(2pi/365)(t-80)] but I get lost afterwards.
*July 8, 2013*

**Business Mathematics **

Jungle Jim owes three debts: $500 due in one year plus interest at 6% semi-annually, $2000 due in two years, $1000 due in three years plus interest at 5% compounded monthly. He wishes to discharge these debts by paying $500 now and two equal but unknown payments in one and two...
*June 24, 2013*

**Math**

P is a point outside of circle Γ. The tangent from P to Γ touches at A. A line from P intersects Γ at B and C such that m∠ACP = 120∘. If AC=16 and AP=19, find the radius of the circle.
*June 4, 2013*

**English**

is my best choice
*May 15, 2013*

**English **

11. In which one of the following sentences is the simple subject also the complete subject? A. Crocodiles, quiet as logs, lurked on the riverbank. B. Detectives Homer Fry and Janine Small looked high and low for clues. C. Large and small dinosaurs stalked the grassy plains. ...
*May 15, 2013*

**english**

6. Which one of the following fragments is a prepositional phrase? A. During the darkest night B. Going to Cleveland C. Listening to her heart D. Completed her assignment I'm stuck between A & B please help me?
*May 15, 2013*

**english**

4. In which one of the following sentences does the subject come after the verb? A. Brock traveled over miles of dirt roads. B. On the next street, you'll find the shoe shop. C. Whenever he's in town, Jeremy likes to go fishing. D. Where is my Elvis CD? I think its D ...
*May 15, 2013*

**english**

thanks (:
*May 15, 2013*

**english**

1. In which one of the following sentences does the verb agree with the subject? A. There is a million reasons why I shouldn't go. B. Here is the reasons we can't start the car. C. Who is the people in the photograph? D. The book that explains the plays is on the ...
*May 15, 2013*

**Algebra**

i did however seem to have made a typo on the first equation the right one is {[-x+y+(-2y)]*[x-y]}/[(x-y)^2+(x+y)^2]
*May 5, 2013*

**Algebra**

no no typo the equation is (x^3+4x^2y+4xy^2+2xy-6y^2)/(x+2y) sorry about the caps on my first post
*May 5, 2013*

**Algebra**

Simplify each of the following expressions into simplest terms. a) {[-X+Y+(-2)*(-2Y)*[X-Y]}/[(X-Y)^2+(X+Y)^2] b) (X^3+4X^2Y+4XY^2+2XY-6Y^2)/(X+2Y)
*May 5, 2013*

**inorganic chemistry**

what is the product of reaction dehydrated K3(Al(C2O4)3) with KMnO4 in the present of KOH?
*April 27, 2013*

**math**

The correct answer was 6.
*April 6, 2013*

**math**

2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone please show me how to do it? This I what I did to solve for it: 3(x-3) 3(he square root of 25-3 3(5-3) 15-9=6 Ok here is another way I solved for it but I am ...
*April 6, 2013*

**math**

2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone please show me how to do it? This I what I did to solve for it: 3(x-3) 3(he square root of 25-3 3(5-3) 15-9=6 Ok here is another way I solved for it but I am ...
*April 6, 2013*

**math**

All you need to do is substitute -3 in place of the x.
*April 6, 2013*

**pre calculus**

The first one is correct but I am still not sure about the second one. This I what I did to solve for it: 3(x-3) 3(he square root of 25-3 3(5-3) 15-9=6 Is it correct?
*April 6, 2013*

**pre calculus**

1.) If h(x)= (fog)(x) and h(x) = 3 over the square root of x+3 , find g(x) if f(x)= 3 over the square root of x+2. my answer is x+1. Am I right? 2.)If f(x)=3x,g(x)=x-3,and h(x)= the square root of x, find (fogox)(X). I really didn't get this will someone please show me how...
*April 6, 2013*

**Physics**

A 2.0-ohm resistor is connected in series with a 20.0-V battery and a three-branch parallel network with branches whose resistances are 8.0 ohms each. Ignoring the battery's internal resistance, what is the current in the battery?
*April 4, 2013*

**Physics**

The temperature of an object is raised by 90ºC. This is equivalent to what increase in its absolute temperature?
*April 4, 2013*

**Physics**

A supersonic aircraft produces a shock wave that describes a 30° cone. What happens to the angle of the cone as the aircraft travels faster?
*April 4, 2013*

**Math**

Hannah's teacher brought in a bucket containing 72 blocks. The blocks are red, yellow or blue. Hannah wants to figure out the number of blue blocks without emptying the bucket. Hannah chooses a block from the bucket records its color and then replaces it. Of her 14 draws ...
*February 12, 2013*

**science**

why is it important that the tumble dryer's plug has properly connected earth wire?
*February 7, 2013*

**Physics - forces acting at an angle**

The physics of tobogganing and forces at an angle: A child is tobogganing down a hillside. The child and the toboggan together have a mass of 50.0kg. The slope is at an angle of 30.0 degrees to the horizontal. Assume that the positive y-direction is pointing in the direction ...
*January 5, 2013*