Wednesday

March 4, 2015

March 4, 2015

Total # Posts: 1,729

**Physics**

If I wanted to right SIGMA F = ma in the proper notation what would I put above and below SIGMA Would I put a lower case "n" above SIGMA and "i = 0" below it and then put a subscript "i" under the "F" thank you I have been woundering ...
*January 6, 2010*

**voting**

What are 3 pieces of information requested on a PA voter registration card? Name the 5 positions that comprise(or make up) an Election Board.
*January 6, 2010*

**Precalculus**

Hello, Thanks for all of the help guys. I really appreciate it. I was woudnering if you could show me how to do this step by step and the thought process that goes through your head while you do this. This way I will be able to try to solve some of these problems on my own ...
*January 5, 2010*

**spanish 2**

Choose the correct form of the verb for each sentence! decidir(to decide) Nadie ______________ su destino. Nobody decides his/her destiny.
*January 5, 2010*

**Precalculus**

this was the answer in the back book. I do not see how to get this though 5(x + 3)(x - 2)^2 (x + 1)
*January 5, 2010*

**Precalculus**

Factor completely 2(3x - 5)3(2x + 1)^3 + (3x - 5)^2 (3)(2x + 1)^2 (2) I'm not really sure how to do this problem I started out by rewriting this 6(2x + 1)^3(3x -5) + 6(3x - 5)^2(2x + 1)^2 I am unsure were do go from here...
*January 5, 2010*

**Physics**

[b]1. The problem statement, all variables and given/known data[/b] A 90 N sign hangs on the end of a 55 N beam supported by a wire as shown. The beam is attached to the wall by a hinge. What are the horizontal and vertical componetns of the force on the hinge? Notes: the sign...
*January 5, 2010*

**Physics**

Satna has delivered gifts to the good Atlatean children. Now his erindeer need to lift him out of the ocean. The density of ocean water is 1.025 g/cm^3 . Sant'as sled has a mass of 337 kg. Santa has a mass of 104 kg. Their combined volume .39 m^3. How hard do the reindeer ...
*January 5, 2010*

** physics**

i meant that sant's final velocity will be zero when both their masses are the same by the way not both of them only santas will be zero when they have the same masses
*January 5, 2010*

** physics**

Driving his sled in the dark, Santa(s) collides with a polar bear (b). After some messy algebra, it can be shown that: Vb = (2 ms Vos)/(ms + mb) Vs = ((ms - mb)Vos)/(ms + mb) What does this imply if Santa hi a cub? What does this imply if Santa and the bear are the same mass? ...
*January 5, 2010*

**Physics**

I believe I've done this right A penguin sildes 1.5 m/s across the ice on her belly. The coefficient of kinetic friction is .02 How far will she slide before stopping? I do not need to see the work to this problem just need to know if I did it right. I got about 5.7 m I am...
*January 5, 2010*

**pre calc**

Find two functions defined implicitly by the given relations: (a) 3x² - y² = 25 (b) y² = x
*January 5, 2010*

**pre calc**

given x=t^2 and y=t-2 find a relationship between x amd y( express y in terms of x) is the relationship a function
*January 4, 2010*

**math**

like i know i need the shares outstanding but am unsure of which one so could you please show me how to perform this calculation using the values on this website and what value exactly i'm suppose to use as there are many of the same name with like different variations i ...
*January 4, 2010*

**math**

i've been asked to ifnd the price-earning ratio of some stocks i'm unsure of how to do this I do not know which EPS value to use as I found some valeus on a website... Like for this company that I got a stock for h t t p : / / w w w . m a r k e t w a t c h . c o m / i ...
*January 4, 2010*

**pre calc**

so that is the answer for a and b
*January 4, 2010*

**pre calc**

let f(x)= e^x and g(x)= sqaure root x
*January 4, 2010*

**pre calc**

Example 1: Let f(x) = ex and g(x) = ãx Find: (a) f(g(x)) (b) g(f(x))
*January 4, 2010*

**Math**

just in general when I'm asked to sovle for X in a equation that is set to zero it's not really set to zero at all is it??? X^2 + 4X - 1 = 0 really what this is saying X^2 + 4X - 1 = dy right???
*January 3, 2010*

**Math**

h t t p : / / w w w . j i s k h a . c o m / d i s p l a y . c g i ? i d = 1 2 6 2 5 5 3 0 8 2
*January 3, 2010*

**Math**

ok so i'm kinda sort of confused... I had this for a equation X^2 + 4X - 1 = 0 and then I was like zero??? zero... really zero... hmm... X^2 + 4X - 1 = dy ???????? That zero does represent when Y equals zero correct??? this allows us to solve for X OH!!!!!!!!!!!!!! wait so...
*January 3, 2010*

**Math**

I haven't done factoring in ages I'm trying to factor this X^2 - 2X + 8 If i remeber correctly sense the leading coefficent is 1 the factored form is in this format (X-A)(X-B) which would give you X^2 -AX - Bx + AB or simply X^2 -(A+B)X +AB so then in my problem -(A+B)...
*January 3, 2010*

**Math**

what is the difference between an equal sign with another line above it and an equal sign with a triangle above it. I was alway taught that the three lines symbolized identity and that the equal sign with a traingle above it signified definition when would you use the three ...
*January 2, 2010*

**English**

I'm having a little bit of trouble with Adventures of Huckleberry Finn I don't believe you have to know the story to help me answer this question. This is from chapter 18 and is like one of the first lines. "He was well born, as teh saying is, and that's worth...
*January 2, 2010*

**Algebra**

why is this a ture statement (A B^2)/C - B^2 =B^2 (A/C-1) by the way that is (A/C)-1
*December 23, 2009*

**math**

A water delivery truck with a cylindrical tank measuring 8 ft in diameter and long dispenses water to drought victims in cartons measuring 6 in. × 6 in. × 12 in. How many victims will get a full container of water?
*December 20, 2009*

**math**

A water delivery truck with a cylindrical tank measuring 8 ft in diameter and long dispenses water to drought victims in cartons measuring 6 in. × 6 in. × 12 in. How many victims will get a full container of water?
*December 20, 2009*

**math**

Alonso can't decide which size pizza to order. The 10-inch cheese and sausage pizza is $7.99, while the 12-inch deluxe is $8.99. The dimensions given are the diameters of the pizzas. If he gets the 10-inch pizza, the total price will be divided among 3 people. If he ...
*December 20, 2009*

**math**

A spherical tree ornament is to be painted in bright colors. If the ornament has a diameter of 4 cm, how much paint is needed?
*December 20, 2009*

**math**

One-half serving of soy sauce contains 389 milligrams of sodium. How many grams of sodium from soy sauce are included in an egg-foo-young dish made from 4 servings of soy sauce? Round results to the nearest tenth of a gram.
*December 20, 2009*

**math**

A toy baseball bat comes with 3 plastic balls in a box that is a rectangular solid. The box is just big enough to hold the 3 balls. The radius of the balls is 1.9 in. What is the volume of the air in the box surrounding the balls?
*December 20, 2009*

**pre calc**

Which three of the twelve basic functions are bounded( above and below)? Three of the tweleve basic functions are even. Which are they?
*December 17, 2009*

**Physics**

18. (II) At a steam power plant, steam engines work in pairs, the heat output of the first one being the approximate ehat input of the second. Th eoperating temeprautres of the first are 680 degrees C and 430 degrees C, and of the second 415 degrees C and 280 degrees C. If the...
*December 16, 2009*

**pre calc**

find all local maxima and minima (the y-values) and the vales where they occur g(x) x absolute value 2x+5 absolute value
*December 15, 2009*

**physic**

the useful carry of a racket is as 5% of all its mass,the other part is fuel.if the racket start moving from the static state, without the effect of F(est) [esternal forces] how is the finalize velocity if the velocity Usc is 5 km/s
*December 7, 2009*

**Math**

If the odds in favor of an event A are 3 to 1, what is the probability associated with event A occurring?
*December 4, 2009*

**math**

a train left podunk and traveled north at 75 km/h. two hours later, another train left podunk and travled in the same direction at 100 km/h. how many hours had the first train traveled when the second train overtook it? can someone help set this up?
*December 3, 2009*

**math**

Got it. Thank you very much
*December 3, 2009*

**math**

where did you get 140 from?
*December 3, 2009*

**math**

A train left Podunk and traveled west at 70 km/h. Two hours later, another train left Podunk and traveled east at 90 km/h. How many hours had the first train traveled when they were 1420 km apart? How do you solved this?
*December 3, 2009*

**math**

> greater than < less than
*December 3, 2009*

**geometry**

Can someone please show me how to find the centroid of a triangle with a median of 36 units. I know the ratio is 2:1 and the answer is 36. I just do not understand the formula.
*December 2, 2009*

**space/astronomy**

all of the gravitational force would remain the same aka. all of them are the same because they are at the same distance 10AU I JUST DID THIS PROBLEM AS WELL got right
*November 30, 2009*

**Math**

What are the odds in favor of getting at least one head in three successive flips of a coin?
*November 29, 2009*

**Algebra**

How do you solve this factoring problem by foil method: 25x2=16
*November 28, 2009*

**biology**

do you have basic cell structure typical plant vs animal cells organelles- stucture and function DNA DNA replication
*November 23, 2009*

**Geometry**

total area of the pizza= ðR2 Cheese + Sausage: 25ð Deluxe: 36ð $7.99/3 people = $2.66 for 8.33ð sq in. $8.99/4 people = $2.24 for 9ð sq in. The deluxe pizza is the better buy because you pay less per person
*November 22, 2009*

**physics**

the answer has to be in rpm, so does that mean that i'm not supposed to multiply by 2PI/60?
*November 18, 2009*

**physics**

A playground merry-go-round has a disk-shaped platform that rotates with negligible friction about a vertical axis. The disk has a mass of 240 kg and a radius of 1.4 m. A 33- kg child rides at the center of the merry-go-round while a playmate sets it turning at 0.20rpm. If the...
*November 18, 2009*

**Physics**

A 0.58- kg flashlight is swung at the end of a string in a horizontal circle of 0.85- m radius with a constant angular speed. If no torque is applied, what must the radius become if the angular speed of the flashlight is to be halved?
*November 18, 2009*

**math**

since it is equal probability you do add all three values and divide by three to get your answer
*November 13, 2009*

**Math**

Bridget added 1/5 to both 12 and 6 4/5 when subtracting 12 - 6 4/5. Tell why.
*November 9, 2009*

**SCIENCE**

10 EXAMPLE OF SOLUTION AND COLLOIDS
*November 8, 2009*

**essay**

what are some good topic to do a personal statment on for an college application?
*November 7, 2009*

**spanish**

what does te quiers comer toda la noche
*November 4, 2009*

**biology**

Describe how animal and plant cells are different.
*October 30, 2009*

**pre calc**

use the quadratic formula to solve for x. x^2+2x+5-0
*October 29, 2009*

**pre calc**

list the positive ientegers between -3 and 7 list the integers between -3 and 7.
*October 29, 2009*

**Beowulf poem**

1. The poem describes when Grendel’s “hatred began,” but it doesn’t tell us why. Why do Grendel began to hate Hrothgar and his people enough to kill them?
*October 28, 2009*

**english**

In today's world, who or what might be our Grendel, our monster? from the story Beowulf
*October 28, 2009*

**chemistry**

What was Bohr's theory of behavior of the electron?
*October 28, 2009*

**social science**

What are some issues that might cause the president to call a joint session of Congress?
*October 27, 2009*

**english**

so it is just a gold hall of men that is mainly seen
*October 26, 2009*

**english**

what does this old english mean in modern english goldsele gumena, gearwost wisse,
*October 26, 2009*

**social science**

why does the constitution specify different ways to determain the number of members for the House and for the Senate?
*October 26, 2009*

**geometry**

a)The planes ands axes of symmetry go through the faces, edges, and vertices of the octahedrons. b)There are 13 planes and axes of symmetry 3 go through opposite faces, 4 go through opposite vertices, 6 go through the midpoints of opposite edges c)The symmetry properties of ...
*October 24, 2009*

**geometry**

It is a triangle. 9/3=3/1 which is a triangle.
*October 24, 2009*

**geometry**

A regular pentagon does not tessellate the plane if the vertices or edges do not meet. In tesselations all the edges and vertices meet.
*October 24, 2009*

**social studies**

What are some reasons Eyptian civilization lasted longer than those in mesopotamia or earlier civilizations?
*October 22, 2009*

**writing**

How can a formal network and informal network help or hinder a business - include examples?
*October 20, 2009*

**3rd grade**

Are you sure that is 3rd grade? I am a 4th grader and I don't know any thing about it. ps. When you are done with homework go to clubpegiun. It is really cool.
*October 20, 2009*

**9**

Writing a descriptive essay of 210 and 250 words topic(my ideal job)
*October 20, 2009*

**chemistry**

Wow finally someone who actually was able to help me get the right answer!!! ^ (I'm not sure where you got 7.2g for CaCl2, but apart from that you did everything right!) Thanks for the help!
*October 19, 2009*

**bill of rights**

how does the bill of rights help the united states remain a democracy?
*October 16, 2009*

**Algebra II**

how do u graph the following: Y=-2xsq'd-6x+3
*October 15, 2009*

**world econ**

I need a website for graphs of food production. Other graphs would be helpful as well. Does anybody know? Thanks.
*October 13, 2009*

**Chemistry**

Light blue flame inside a Dark blue flame
*October 13, 2009*

**Political Science**

What does the Federal Reserve have to do with unemployment?
*October 9, 2009*

**social science**

What are three examples of times when a society lost order and turned to chaos. (could be a city, country, prison setting, etc
*October 7, 2009*

**world history**

how did geography help the romans build an empire ?
*October 7, 2009*

**algebra 2**

can you show me the set up
*October 6, 2009*

**algebra 2**

find the x and y intercept of the function y=3x+4 y=x^2+7x+12
*October 6, 2009*

**chemistry**

When Kl and Pb (NO3)2 is combined, is this a chemical or physical change?
*October 5, 2009*

**math**

from a base elevation of 76000 ft, a mountain peak in colorado rises to a summit elevation of 14321 ft over a horizontal distance of 15841 find the grade of the peak
*October 4, 2009*

**pre calculus**

evaluate if possible the function at the given values(s) of the independent variable. Simplify the results. f(x)=7x-4 a) f(0) b) f(-3) c) f(b) d) f(x-1)
*October 4, 2009*

**calculus**

f(x)=2x^2-4 f(x+delta x)-f(x)/delta x solve for the solution
*October 1, 2009*

**ap calculus**

ok this is a problem similar to it correct
*September 26, 2009*

**ap calculus**

yes i need help can you solve it out then i will ask you questions from then
*September 26, 2009*

**ap calculus**

write the general form of the equation of the lines throught the point (a) parallel to the given line and (b) perpendicular to the given point point- (2,1) line- 4x-2y=3
*September 26, 2009*

**Math116**

Evaluate: 4r for r=12 and s=6/s Simplify your answer= 6/s Is my answer right? Thank you.
*September 26, 2009*

**Math**

Lisa needs to make 2 times as many tunas as cheese sandwiches and 4 times as many ham as cheese sandwiches. If Lisa makes 56 sandwiches, how many of each of the 3 kinds will she make?
*September 26, 2009*

**health topics**

i need help with a interesting topic about obesity in america i want it to be unique and different that catches your attention i can't think of any at the moment
*September 25, 2009*

**history**

with the improvement in transportation and communication, would the original articles of confederation work for all 50 states today? Explain why?
*September 24, 2009*

**spanish**

need help with the rest
*September 23, 2009*

**spanish**

Fill in the missing blank. Estas aburrido? No, _________ cansado. Donde _______ la escuela? Esta en el parque Fairmount. Como es tu novio? _______ muy romantico?
*September 23, 2009*

**chemistry**

For CH3CO2H, give the hybridization and approximate bond angles for each atom except hydrogen. Also, draw an orbital bonding picture. Show all lone pairs. Can this be drawn on paint and uploaded to me? Thank you.
*September 23, 2009*

**biology**

LIST AND EXPLAIN FIVE USES OF SCIENCE
*September 23, 2009*

**college essay**

i need help cominmg up with An Experience That Has Changed My Life and I can think of any. I want a topic that will make a very good college essay.
*September 22, 2009*

**Mum Bett**

ok so she sued because she thought she didnt have any rights and freedom
*September 21, 2009*

**Mum Bett**

what was Mum Bett personal fight to uphold the Declaration of independence
*September 21, 2009*

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