Thursday
July 31, 2014

Posts by leo


Total # Posts: 371

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?

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

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

Math
1/a+1/b+1/c=1/2 a≧b≧c Please help me The math question

geometry
Do you know what the formula for surface area is?

Algebra 1
That looks right to me. Are you allowed to use a calculator? What do you get for the value of x?

Algebra 1
For number 2, can you show your work? What do you have so far?

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?

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.

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?

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?

computer problem
Many day ago my seddenly my computer can't open. The power botton can't light. Please help me.

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

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?

math
Is DEF also a triangle?

Math
Do you have any other details, such as, what his previous time was?

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

math
Do you have any work to show on this question so far?

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?

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?

math
Where are you getting stuck exactly? I can't read your mind ya know! ;)

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 sw...

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.

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 functio...

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.

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.

Math help, anyone?
Well to start, do you know what a right triangle is?

Physics 2
Interesting question. Do you have any thoughts on this?

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!

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

Math
Can you post the question again with proper capitalization and punctuation? I can't even understand the question as you posted it.

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+ ho...

Algebra
Yes, you are correct. Well done :)

Consumer Math
Are you supposed to use a calculator or do the division on paper?

Physics
Draw a diagram of forces. Then balance all forces on the stick.

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?

POL 201
Which question on your quiz are you having trouble with? Please show your work, and we would be glad to help you.

College Algebra
Well what do the words "and" and "or" imply? Do each of these words point to an intersection or union?

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?

Math
Yes, you are correct. Well done.

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

Algebra 1
Yes, you are correct. $50 must be greater than the total cost of 0.12m + $20 Good job.

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.

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.

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

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.

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'...

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?

Math Help Please
write an equation of a line whose graph is parallel to the graph of y= 3x - 10.

science
Which one is more right? Please help!!

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

math
D 7/8

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...

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 ha...

fast answer plss
Since this is algebra, do you know what algebraic equations you should be writing out and solving for?

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?

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

Math
First you need to find out what 10/20/30 means.

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?

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

marketing
Hello, what is your question here? Do you have any work or ideas to show?

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

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?

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 make...

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 throug...

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.

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...

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.

English
is my best choice

English
d?

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. ...

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?

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 ...

english
thanks (:

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 shel...

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]

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

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)

inorganic chemistry
what is the product of reaction dehydrated K3(Al(C2O4)3) with KMnO4 in the present of KOH?

math
The correct answer was 6.

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 stil...

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 stil...

math
All you need to do is substitute -3 in place of the x.

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?

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...

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?

Physics
The temperature of an object is raised by 90ºC. This is equivalent to what increase in its absolute temperature?

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?

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 s...

science
why is it important that the tumble dryer's plug has properly connected earth wire?

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 o...

Physics...Equilibrium (physics of a clothesline)
A clothesline is attached to two fixed ends which are 10.0m apart. A pulley of mass 40.0kg hangs freely in the middle of the line. The sag at the centre is 0.20m. Find the tension in each half of the clothesline.

physics - relative motion
A ferryboat, whose speed in still water is 4.00m/s, must cross a river whose current is 3.00m/s. The river runs from west to east and is 128m wide. The boat is pointed north. a) If the boat does not compensate for the flow of the river water and allows itself to be pushed off ...

physics
An electron is accelerated from rest to a velocity of 2.0x10^7 m/s. a) if the electron travelled 0.10m while it was being accelerated, what was its acceleration? b)How long did the electron take to attain its final velocity? Please correct me if I'm wrong but I believe the...

Physic
1. Water at a pressure of 3.00 x 10 5th Pa flows through a horizontal pipe at a speed of 1.00 m/s. The pipe narrows to one-fourth its original diameter. What is the speed of the flow in the narrow section? Not sure was successfully posted

Chemistry
Name the following compounds 1. CH3-CH=CH-CH2 l Cl 2. CH3-CH-C=(tripple bond)C-CH3 l CH3 3. Cl Cl l l CH = C-CH3 4. Complete the following reactions and name the products a. CH2-CH=CH3+Cl2>>>> b. CH3-C=C-CH3+Br2 >>> Please help!

social studies
imagine that you are the leader of a native american group tht wishes to join the iroquios league. write an essay giving specific reasons why your group should join the league?? HELP!!

Physics- Difficult Please Help
Thank you!!!!

Physics- Difficult Please Help
If a 60N weight free falls onto a hollow ball what amounts of force are produced after 3 seconds of impact, if it lands .3m away of the center?

chemistry
How many grams of K2HPO4 are there in a teaspoon? Tablespoon? How do I figure this out?

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