Monday

July 6, 2015

July 6, 2015

Total # Posts: 874

**algebra **

Simplify: ( sqrt (2) + sqrt (3) ) ( sqrt (2) - sqrt (3) )? a) 2 - 2 sqrt (6) - 3 b) -1 c) 2 + 2 sqrt (6) - 3 d) 5 i just need to know if my answer or right or wrong. i think the answer is b thanks
*June 18, 2010*

**algebra**

thanks
*June 18, 2010*

**algebra**

Find the distance between (2/3,4) and (5/3,7) a) 3.16 b) 4.24 c) 3.46 d) 10 .06
*June 18, 2010*

**algebra**

the correct answer is c
*June 18, 2010*

**algebra**

simplify the following radical expression : 4 sqrt (625) a) 25 b) sqrt (25) c) 5 d) no solution exists i think a
*June 18, 2010*

**algebra**

alright thanks mathmate
*June 17, 2010*

**algebra**

simplify the following radical expression: 3 sqrt (-27) a) -3 b) 3 c) 0 d) no solution exists do i write the sqrt like this or do i write like this sqrt () 3 -27 please show me the correct way to write it thanks
*June 17, 2010*

**algebra**

thanks jen and mathmate
*June 17, 2010*

**algebra**

simplify the following radical expression: sqrt x * sqrt x a) x b) sqrt x c) 2 d) no solution exists do you know any site that will help me with the square roots? thanks!
*June 17, 2010*

**Financial officer**

If the finance officer who is the interviewer ask a question and ask the question again in a different way that is "overuses questions". I need to know what happens when the interviewer ask overuses questions. What would be the candidates feel or respond and should ...
*June 9, 2010*

**Financial officer**

What happens when the interviewer or manager overuses questions?
*June 9, 2010*

**1st grade**

can you name a story where an animal needs help and no other animal will help them?
*June 1, 2010*

**computers**

A small startup software developer company needs to create a program that will calculate the pay of its employees. For the first version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked, and the hourly pay...
*May 26, 2010*

**Math**

A basketball player has a 40% shooting average from the free-throw line. If she takes two free throws, estimate the probability that she will make both of them. Use the following list of digits which was taken from a table of random numbers. Let the digits 0-3 represent a made...
*May 24, 2010*

**Math**

What is the measure of the point for a star shaped polygon with 8 points and a dent angle of 130 degrees? How do I work this out?
*May 23, 2010*

**Math**

What is the measure of the point angle for a star-shaped polygon with 8 points and a dent angle of 130 degrees?
*May 23, 2010*

**math**

$36.80 + 56%=
*May 23, 2010*

**Math**

Suppose that a given parallelogram is not a rhombus. Which of the following can you conclude about this parallelogram? A) Its diagonals are perpendicular bisectors of each other. B) It is a square. C) Its sides are not all congruent. D) All of the above I picked C.
*May 23, 2010*

**math**

x+4/2x*6x^2/x^-16= (x+4)/2x*6x(x)/(x+8)(X-8) rational expression using factoring could some check this.
*May 22, 2010*

**math**

8x^3+125 (2x)^3+(5)^3 (2x+3)(5x^2-6x+25) check this for me
*May 17, 2010*

**9th grade**

Is this anwser right 1,2,9,28,49
*May 17, 2010*

**Math**

I still don't understand. Could you explain. I don't know what any of this means.
*May 16, 2010*

**Math**

Use the discriminate to determine how many real number solutions the equation has. s^2 - 5s + 6 = 0
*May 16, 2010*

**Physics**

A body moves in rectilinear motion along the x-axis with an acceleration of a = 24 - t - 6 t^2 . Starting with an initial position at the origin (x = 0) and an initial velocity of 4 ft/s to the left (along the negative x-axis), what is the position of the body at the end of 4 ...
*May 14, 2010*

**Chemistry**

i need to find the; [Cl-] in PbCl2 solution,[Pb2+] in PbCl2 solution, and the ksp given: PbCl2(s)--> Pb2+(aq)+2Cl-(aq) Temp of solution =20.2 volume of Pbcl2 solution=25.00ml mass of dry AgCl2(g)=0.2543g #moles : AgCl(s)=1.77e-3 Cl(aq)=1.77e-3 Pb2+(aq)= 8.85e-4
*April 26, 2010*

**Chemistry**

1500 * 0.05 = 75 75g of K2SO4 to make 1500g of a 5% solution.
*April 26, 2010*

**Chemistry**

v/v = 50 mL / 2500 mL x 100 = 2.0% v/v
*April 26, 2010*

**alcoholic beverages**

so that the cork stays wet
*April 26, 2010*

**chemistry**

i need to find the; sorry i need to find [Cl-] in PbCl2 solution,[Pb2+] in PbCl2 solution, and the ksp given: PbCl2(s)--> Pb2+(aq)+2Cl-(aq) Temp of solution =20.2 volume of Pbcl2 solution=25.00ml mass of dry AgCl2(g)=0.2543g #moles : AgCl(s)=1.77e-3 Cl(aq)=1.77e-3 Pb2+(aq...
*April 26, 2010*

**chemistry**

[Cl-] in PbCl2 solution, M? [Pb2+] in PbCl2 solution, M? ksp? #moles : AgCl(s)= Cl(aq) Pb2+(aq)= Temp of solution =20.2 volume of Pbcl2 solution=25.00ml mass of dry AgCl2(g)=0.2543g
*April 26, 2010*

**History**

I'm writing a paper based on the life of General Douglas MacArthur; however, I'm having trouble figuring out how to outline my report. My question is, how should I outline my report?
*April 18, 2010*

**math**

What is the ratio of 2 positive numbers whose product is 2400 at a 2:3 ratio?
*April 14, 2010*

**math**

what is the sum of 2+3?
*April 12, 2010*

**English**

How does the the notion of colonization impacts on your post-modern or fluid notions of personal idenity?
*April 11, 2010*

**programming**

A small startup software developer company needs to create a program that will calculate the pay of its employees. For the third version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked, and the hourly pay...
*March 6, 2010*

**programming**

Write Pseudocode and explain the how do you do the program desk check?
*March 6, 2010*

**computers**

A small startup software developer company needs to create a program that will calculate the pay of its employees. For the first version of the program, the company wants the program to accept an employee’s name, the number of hours the employee worked, and the hourly pay...
*March 6, 2010*

**College Chemistry**

ammonia reacts with diatomic oxygen to form nitric oxide and water vapor:4NH3+5O2=4NO+6H2O what is the theoretical yeild of water in moles when 40 g NH3 and 50g O2 are mixed and allowed to react
*March 1, 2010*

**Math**

The length of a rectangle is fixed at 20cm. What widths will make the perimeter greater than 78cm?
*February 26, 2010*

**math**

4 6/9 + 3 7/12=
*February 23, 2010*

**computer history**

what are all the anser
*February 22, 2010*

**Physics**

A car battery is rated at 90A hr, meaning that it can supply a 90A current for 1 hr before being completely discharged. If you leave your headlights on until the battery is completely dead, how much charge leaves the positive terminal of the battery?
*February 17, 2010*

**Physics**

In a typical lightning strike, 2.5 C flows from cloud to ground in 0.20 ms. What is the current during the strike?
*February 17, 2010*

**Physics**

2.0x10^13 electrons flow through a transistor in 1.0ms. What is the current through the transistor?
*February 17, 2010*

**Physics**

A 70 W electric blanket runs at 24 V. What is the resistance of the wire in the blanket? How much current does the wire carry?
*February 17, 2010*

**Physics**

An electric eel develops a potential difference of 460 V, driving a current of 0.80 A for a 1.0 ms pulse. Find the power of this pulse. Find the total energy of this pulse. Find the total charge that flows during the pulse.
*February 17, 2010*

**Physics**

Resistivity measurements on the leaves of corn plants are a good way to assess stress and overall health. The leaf of a corn plant has a resistance of 2.1 M Ohm measured between two electrodes placed 20cm apart along the leaf. The leaf has a width of 2.8 cm and is 0.20 mm ...
*February 17, 2010*

**Physics**

The relatively high resistivity of dry skin, about 1x10^6 Ohm m, can safely limit the flow of current into deeper tissues of the body. Suppose an electrical worker places his palm on an instrument whose metal case is accidently connected to a high voltage. The skin of the palm...
*February 17, 2010*

**Physics**

You've made the finals of the Science Olympics! As one of your tasks, you're given 1.1g of copper and asked to make a cylindrical wire, using all the metal, with a resistance of 1.7 Ohm. What length l will you choose for your wire? What diameter d will you choose for ...
*February 17, 2010*

**Physics**

An electric catfish can generate a significant potential difference using stacks of special cells called electrocytes. Each electrocyte develops a potential difference of 110 mV. How many cells must be connected in series to give the 350V a large catfish can produce?
*February 17, 2010*

**Physics**

When a nerve cell depolarizes, charge is transferred across the cell membrane, changing the potential difference. For a typical nerve cell, 9.0 pC of charge flows in a time of 0.50ms. What is the average current(Value and units)?
*February 17, 2010*

**Physics**

You've made the finals of the Science Olympics! As one of your tasks, you're given 1.8g of copper and asked to make a wire, using all the metal, with a resistance of 1.3 Ohm. Copper has a density of 8900 kg/m^3. What length will you choose for your wire(in meters)? ...
*February 17, 2010*

**math**

what is the value of y- coordinate of the solution to the system of equation x + 2y = 9 and x- y= 5
*January 28, 2010*

**science**

what are the answer
*January 24, 2010*

**6th grade**

How do you convert 3.84% to a fraction?
*January 19, 2010*

**pre-calculus**

is y=x to the 8th power an exponential function
*January 5, 2010*

**Systems operations management**

o A cost-benefit matrix that compares the alternatives. o The effects the alternative will have on productivity. o Possible benefits of using a network strategy to streamline operational procedures.
*January 5, 2010*

**Systems operations management**

1.a cost-benefit matrix that compares the alternatives showing the cost-benefit for each alternative. 2.the effects the alternative will have on productivity. 3.possible benefits of using a network strategy to streamline operational procedures.
*January 5, 2010*

**science**

what type of enironmental change might stop the development of an organic sedimentary rock?
*December 30, 2009*

**arithmetic**

(3/4) x (1/2) (3/8) of a cup.
*December 9, 2009*

**6 grade math**

Let x be Jack's age. Let y be Jen's age. x = 2y - 2 x + 3y = 66 So: 2y - 2 + 3y = 66 5y - 2 = 66 5y = 68 y = 13.6. So she's about 13 and a half years old.
*December 9, 2009*

**physics [sound]**

The coval tract can be assumed to act like a cylindrical tube closed at one end (at the larynx), having a length of 17.5 cm. On the basis of this, what would you expect to be the first three formant frequencies of the voice?
*December 9, 2009*

**physics**

Take the length of a trombone to be 275 cm in the first position. How far does the slide have to be moved to lower the pitch one semitone? [Remember that the length is increased by twice this amount.]
*December 9, 2009*

**math 6 grade**

It's multiplying by four each time. So.. 1st Month: 2 2nd Month: 8 3rd Month: 32 4th Month: 128 5th Month: 512 6th Month: 2048
*December 9, 2009*

**math**

1 + 1 + 17 + 17 2 + 2 + 16 + 16 3 + 3 + 15 + 15 4 + 4 + 14 + 14 5 + 5 + 13 + 13 6 + 6 + 12 + 12 7 + 7 + 11 + 11 8 + 8 + 10 + 10 9 + 9 + 9 + 9 So there are 9.
*December 9, 2009*

**7th grade**

if 50 grams equal to 150 calories,how many grams equal to 1,000 calories
*December 8, 2009*

**Math**

The cost of a new car is $16,000, which can be financed by paying $3000 down $300 per month for 60 months. Use the actuarial method to find the unpaid interest. Instead of making the thirty-sixth payment, the borrower decides to pay the remaining balance and terminate the loan...
*December 2, 2009*

**math**

The price of a home is $120,000. The bank requires a 10% down payment and two points of closing. The cost of the home is financed with 30-year fixed-rate mortgage at 8.5%. Find the total cost of interest over 30 years.
*December 2, 2009*

**history**

explain how reagan's policies reflected conservative politics and contributed to stimulation of the economy
*November 28, 2009*

**Math**

86.25% write as a fraction in lowest terms
*November 15, 2009*

**Math**

If a salesman is paid a $2,100 commission on the sale of a $35,000 sailboat, what is his commission rate?
*November 14, 2009*

**Math**

1/2, 2/3, 3/4, 0.95
*November 14, 2009*

**Math**

write 1/2, 3/4, 2/3, 0.95 from least to greatest
*November 14, 2009*

**Math**

1/2, 3/4,
*November 14, 2009*

**6th Grade Math**

3w-3=W+3
*October 28, 2009*

**biology**

what is cell division called
*October 22, 2009*

**math**

Thanks ms sue
*October 11, 2009*

**math **

Ms sue is it 1 5/12
*October 11, 2009*

**math**

2 2/3-n=1 1/4
*October 11, 2009*

**math**

N+3/4=1 1/2 what is the n?
*October 11, 2009*

**algebra**

c. frequency of occurence
*October 8, 2009*

**math **

Juan Says "When you put together unequal groups you can only add" ishe correct? explain
*October 5, 2009*

**math**

JUAN SAYS "WHEN YOU PUT TOGETHER UNEQUAL GROUPS YOU CAN ONLY ADD IS HE CORRECT? EXPLAIN
*October 5, 2009*

**latin**

what is the latin abbbreviations for speak at will, and the rest, against, afterthought, and others, take this, and which see? what is the meaning of the latin words ad lib, vs, cf, and q.v.
*September 19, 2009*

**geography**

What are the 5 themes of geography?
*September 13, 2009*

**math**

the length of a rectangle is 5 ft more than twice the width. a)if x represents the width of the rctangle, represent the perimeter of the rectangle in terms of x. b) if the perimeter if the rectangle is 2 ft more than eight times the width of the rectangle, find the dimensions ...
*September 12, 2009*

**science**

can you explain the science of cooking
*September 9, 2009*

**math**

how do I solve 9+(P+3)
*September 2, 2009*

**math**

9+(P+3) P=?
*September 2, 2009*

**math**

what is 4m=20
*September 2, 2009*

**Financial officer Interview**

What happens when the interviewer or manager overuses questions?
*August 28, 2009*

**chemistry**

your experiment yielded 50kg of NaCl (D= 4.5g/ml. What volume of your yield is this in liters?
*July 13, 2009*

**Math**

6 1/24
*July 7, 2009*

**math**

Bill Shass pays a property tax of $3,200. In his community, the tax rate is 51 mills. What is Bill’s assessed value? (Round your answer to the nearest dollar amount. Omit the "$" sign in your response.)
*May 5, 2009*

**math**

1) The Vietnam Memorial in Washington, DC is an angular wall. If you are standing at the vertex of the angled monument and you wish to back up always staying equidistant from the side walls, describe the path you would take. 2) Describe fully the locus of points 6 units from ...
*April 25, 2009*

**math**

1) The Vietnam Memorial in Washington, DC is an angular wall. If you are standing at the vertex of the angled monument and you wish to back up always staying equidistant from the side walls, describe the path you would take. 2) Describe fully the locus of points 6 units from ...
*April 25, 2009*

**Math**

5.67
*April 20, 2009*

**com 140**

How do you apply the knowledge of effective business communication in your current or future job and college courses?
*April 20, 2009*

**Physics**

5.94m/s
*April 12, 2009*

**math**

The cross section of an attic is in the shape of an isosceles trapezoid. If the height of the attic is 9 feet, BC=12 feet, and AD=28 feet, find the length of line AB to the nearest foot. The triangle of the trapezoid is triangle ABE and the bases are BC and AD. Could you also ...
*April 11, 2009*