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January 26, 2015

Posts by me


Total # Posts: 1,096

maths help please
Find the largest four digit number which has a total of exactly 3 factors. Assuming that 1 and the number itself are factors
February 27, 2013

math
Example: 1 Gas is escaping from a spherical balloon at the rate of 2 ft3 / min .How fast is the surface area shrinking when the radius is 12 ft ?
February 24, 2013

Geometry
a baseball diamond is a square wiht 4 right angles and all sides congruent. wrte a two column proof to prove that eh distance from first base to third base is the same as the distance from home plate to second base. write a two column proof to prove that ehd angle formed by ...
February 17, 2013

Physical Science
A force of 60N used to push a chair across a room does 300J of work in half a minute. How far does a chair move?
February 17, 2013

math
Inverse property of multiplication...
February 12, 2013

algebra
1. y=x2 - 16 for maximum or minumum, dy/dx=0 hence 2x=0 or x=0 minimum value of function occurs when x=0 which is y=-16 2.using same principle as above, dy/dx=10x+5 when dy/dx=0 => 10x+5=0 => x=-1/2 minimum value of y= -5/4 - 5/2 + 11 for 3, 4 and 5 use the same ...
February 4, 2013

Chem hwk
the final answer is 7750.80/333.012= 23.27g CaSOa if you follow DrBob222 steps
January 28, 2013

Math
nhh
January 21, 2013

lang arts
number 2 was c not be.
January 17, 2013

math
In the diagram, transversal GH intersects parallel lines AB amd CD. m<DGH = x, and m<BHG = 2x - 30. Find the measure of <AHG
January 16, 2013

Math
Find the principle, given r=3% and t=3/4 years, a=2556.25
January 16, 2013

algebra
Do your work
January 14, 2013

English
Here: Barrio Boy is a true story of the author's cultural transition from a small Mexican village to a barrio in the United States. My Lack of Gumption is based from the actual life experiences of the author Russell Baker during his childhood in search for a career to ...
January 10, 2013

Biology-check my answer
answer is C
December 19, 2012

Chemistry (balloon)
HOW CAN I SOLVE WITH THESE NUMBERS? A latex balloon, wall thickness 3.091 x 10-4 m, contains helium at a concentration of 0.82 kg m-3. Under these conditions the total surface area of the balloon is 0.5 m2. The diffusion coefficient of He in latex at room temperature is 4.9 x ...
December 15, 2012

math
What is the ratio of 4/5 to 7/15?
December 3, 2012

Chemistry
after using the dilution formula M1V1=M2V2, i got .6L of water
December 2, 2012

frequency-physics
the speed of sound from B is one-fourth as fast
December 2, 2012

science
D. Reference point
November 29, 2012

social studys
What was one cause of the English Civil War?
November 20, 2012

social studys
the only one that i don't know is that one and i am studying this
November 20, 2012

social studys
3. Christians and Muslims wanted to control the Holy Land because *of the region's gold mines. *they needed supplies for their armies. *it had valuable water resources. *they believed it was a sacred place.
November 20, 2012

social studys
oh thanx! :)
November 20, 2012

social studys
what is a fief?
November 20, 2012

social studys
thank u bothe i will be using your stratigy
November 19, 2012

social studys
oh and he mailed me that it was my problem!
November 19, 2012

social studys
1. What enabled people of northern Italy to sponsor learning? (1 point)Martin Luther's ideas a mild climate wealth from trade help from the Germany government 2. What did German leaders want during the Reformation? (1 point)to increase the pope's power to collect their...
November 19, 2012

7th grade ath Ms. Sue only 1 question please
wazzupp
November 19, 2012

7th grade math Ms. Sue please
gaetret yay!!!!
November 19, 2012

english
just took the quiz! and yeppers they were all right!! thanks!:D
November 18, 2012

statistics
The average amount of time people spend on facebook each day is 71 minutes, with a standard deviation of 4.7 minutes. Are you more likely to select a random person that spends less than 68 minutes per day, or a group of 35 people that spend on average less than 65 minutes per ...
November 17, 2012

sosgal studdies
thank you
November 15, 2012

sosgal studdies
What enabled people of northern Italy to sponsor learning? (1 point)Martin Luther's ideas a mild climate wealth from trade help from the Germany government 2. What did German leaders want during the Reformation? (1 point)to increase the pope's power to collect their ...
November 15, 2012

Language arts
do you still do conexus?
November 13, 2012

physics
20uc
November 13, 2012

Math
Jman, why were you looking up this question if you already did the test?
October 29, 2012

math - still don't get it
thank u I wouldn`t get it at first because I figure things out AFTER I know the answer however , thnx
October 25, 2012

physics
a wagon is pulled at a constant speed at an angle of 46 dregress with a force of 100N. ehat is the force of friction between the wagon and the ground ?
October 22, 2012

physics
two kids push on a 10kg box. one pushes 100N to the west and the other pushes north at 200N. what is the acceleration of the pbject?
October 22, 2012

physics
wile e coyote pushes a 1500n rock toward the edge of a cliff with the road runner below. he gives a rock acceleration of .8m/s^2. what is the net force of the rcok?
October 22, 2012

Science
Thanks
October 10, 2012

Science
24.62 g of nickel heated and then immersed in 200ml of water. the temperature of the water rose 22.50c to 32.20c.The specific heat of NI is .470J/g*C. What is the temperature of the Ni before it is immersed in the water?
October 10, 2012

Science
Strong
October 9, 2012

Engineering Fund.
Since the force 235 N is at an angle, you want it to be parallell with the ground. To do that you do the cosine of the angle multiplied by the force. So 235*cos34.8 = 192.97 N Using F=ma 192.97=19a so a= 10.1563 m/s^2
October 4, 2012

Geometry
What the hell is the answers.?!
September 7, 2012

philospy 103
In the conditional "P →Q," "P" is a my answer is necessary condition for P
September 3, 2012

health
What is the impact of health care cost for the individual consumer? The employer?
August 19, 2012

health
What can consumers do to reduce health care costs?
August 19, 2012

Chemistry
C3H8 + 5O2 --> 3CO2 + 4H2O what are the oxidation #'s of each? What is being oxidized? reduced? Please explain
July 18, 2012

Statistics
A local fire station receives an average of 0.5 rescue calls per day. Find the probability that on a randomly selected day, the fire station will receive fewer than two calls. (Round your answer to the nearest thousandth.)
July 13, 2012

Geometry
11. What is the bearing of the plane? 12. What is the smallest angle of the triangle? 13. What is the largest angle of the triangle? 14. What is the remaining angle of the triangle? 15. What is the ground speed of the plane? I am lost on these
June 5, 2012

Math
C(5) would be the cost to make 5 sailboats, so substitute 5 for 'x' (2 * 5) + 20 10 + 20 = 30; since the question says the cost is in thousands of dollars, then C(5) is how much it costs the company to make 5 sailboats, which is $30,000 or $6,000 / sailboat.
May 29, 2012

alegbra
To find the product of two fractions, you simply multiply across top & bottom. But first, you can see that 12 and 15 have a common factor of 3. So, (11 / 15) * (12 / 7) then becomes: (11 / 5) * (4 * 7) Multiplying straight across, you get: (11 * 4) / (5 * 7) = 44 / 35
May 29, 2012

math/algebra
I don't know where 'bobpursley' learned his math, or why he keeps answering math questions on this site incorrectly, but here's how it's actually done. There are 60 minutes in an hour, so 55 minutes can be expressed, very simply, as 55 / 60 To reduce this ...
May 29, 2012

math
20% = 0.2 If his sticker collection, at the moment, has 1400 stickers, then 0.2 * 1400 = 280 stickers.
May 28, 2012

Math (grade 10)
To find the coordinates of the lamp, you have the find the midpoint of the path. The path has two endings: one at (-25, 20) one at (40, 36) For the x-coordinate, add up all x-coordinates and divide them by 2 -- [(-25 + 40) / 2] = (15 / 2) = 7.5 For the y-coordinate, add up all...
May 28, 2012

Algebra
There are 2 halves in the course: 1st half has 120 points 2nd half has 140 points -- for a grand total of 260 points If a student earns 81% of the points in the 1st half, she earns 0.81 * 120 points -- 0.81 * 120 = 97.2 points If there are 260 total points in the class, and ...
May 28, 2012

college math
If you're talking about the median, then you're missing a number in your list. Your list is: 1400, 1550, 1700, 2500, 7000 which has 5 numbers. The median (the middle number) would be the 3rd, which in this case is 1700. If you want the median to be [(1700 + 2500) / 2...
May 27, 2012

college math
If both terms are equal, that is: x / 60 = 9 / 5 Then, x is to 9, as 60 is to 5. 60 = 5 * 12 so, x = 9 * 12 thus, x = 108.
May 27, 2012

National Junior Honor Society Essay Check
....Nice!
May 15, 2012

business law
Fred and Zuma Palermo contacted Colorado Carpet Installation, Inc., for a price quotation on providing and installing new carpeting and til­ing in their home. In response, Colorado Carpet submitted a written proposal to pro­vide and install the carpet at a certain ...
May 1, 2012

Science
what happens when you increase the thermal energy of water
April 23, 2012

Accounting
200
April 13, 2012

physics
An engine absorbs 2000J of heat from a hot reservoir and expels 750J to a cold reservoir during each operating cycle. What is the efficiency of the engine?
April 13, 2012

Socail Studies
senior
April 12, 2012

health
c all day
April 11, 2012

chemistry
What are the skeleton equations for Dicarbon hexahydride gas + oxygen gas --> carbon dioxide gas + gaseous water And Solid barium and chlorine gas react to produce solid barium chloride
April 3, 2012

Statistics Question
the answer is 1. thank
March 22, 2012

biology
bill is wrong. It is B. simple sugars. Have fun on study island
March 21, 2012

Math
They have 20 pieces of 12 foot lumber. If they need 2 screws for every 3 feet of lumber, how many screws do they need?
March 20, 2012

English 11
BELIEVE ROSCOE!!1
March 12, 2012

physics
A person, with his ear to the ground, sees a huge stone strike the concrete pavement. A moment later two sounds are heard from the impact: one travels in the air and the other in the concrete, and they are 1.7 s apart. How far away did the impact occur?
March 11, 2012

chemistry
Dr.Bob222 can you work this problem out fully. I don't understand at all.
March 4, 2012

Economics
If all company in a certain industry are earning economic profits now, in long run what will happen?
February 25, 2012

physics
V=d/t or t=d/v t=138/25 t=5.52 seconds
February 20, 2012

Algebra 2
You are cooking chili. When you take it off the stove, it has a temperature of 205°F. The room temperature is 68°F and the cooling rate of the chili is r = 0.03. How long will it take to cool to a serving temperature of 95°F
February 20, 2012

MATH
A gyroscope of radius 18 cm rotates 35 times per minute. What is the linear velocity at a point on the edge of the gyroscope?
February 19, 2012

Physics
fbaba
February 9, 2012

College Calculus
50 pi gorillas
February 9, 2012

Math
fabric that is 56 1/4 cut into 3 3/4
February 7, 2012

chemistry
How many grams of carbon dioxide can form when a mixture of 3.60 g ethylene (C2H4) and 2.70 g of oxygen is ignited, assuming complete combustion to form carbon dioxide and water?
January 25, 2012

caculus
ʃ dx/x^4(1/x^2-2)^2 please help i need solution..i got the answer.. answer= 1/6(1-2x^3)=c thanks
January 23, 2012

calculus
Find the volume of the solid generated by revolving the region bounded by the graphs of the equations about the line x = 6. y = 6 − x y = 0 y = 5 x = 0
January 23, 2012

math
State 15.70 City 7.85 Retirement 23.55 FICA 42.25 Income 90.33 ------- Total Deductions 179.68 785.00 - 179.68 = $605.32
January 10, 2012

math
Part 1: Find the area of a rectangular object which has a length of 5√8 inches and a width of 2√5 inches. (3 points) Part 2: Explain, in complete sentences, how you arrived at the simplified answer and give the final solution in simplified radical form. (2 points) ...
January 7, 2012

PHI 103
#2 is sound deductive. The book says that it is.
December 10, 2011

physics
So is the formula for r: r = (1/4)(v^2/g)? or (1/4 v^2)/g ? sorry I am asking so much
December 9, 2011

physics
So the first formula period=2pi*sqrt(r/g) is incorrect? I am just confused I am sorry
December 9, 2011

physics
I am just confused on the way some of these are written out like in the period equation you just gave, is pi multiplied by v and then divided by g or is the whole quantity given by v/g multiplied by pi?
December 9, 2011

physics
Is the formula r = (1/4)(v^2/g)? or (1/4 v^2)/g ?
December 9, 2011

physics
A pendulum consists of a massless rigid rod with a mass at one end. The other end is pivoted on a frictionless pivot so that it can turn through a complete circle. The pendulum is inverted, so the mass is directly above the pivot point, and then released. The speed of the mass...
December 9, 2011

Physics
A pendulum consists of a massless rigid rod with a mass at one end. The other end is pivoted on a frictionless pivot so that it can turn through a complete circle. The pendulum is inverted, so the mass is directly above the pivot point, and then released. The speed of the mass...
December 9, 2011

pre-algebra
3.7x-3.5=x+5.4 0.7(0.9x+3)-0.8(1.6x-0.7)=x
December 8, 2011

Physics help pleaseeeeee
An oscillator with a mass of 281 g has a speed of 119.1 cm/s when its displacement is 2.80 cm and 34.2 cm/s when its displacement is 7.80 cm. What is the oscillator's maximum speed (in m/s)?
December 7, 2011

Physics
A 103.0 g mass attached to a horizontal spring oscillates at a frequency of 2.52 Hz. At t = 0 s , the mass is at x = 6.31 cm and has a velocity of -11 cm/s. Determine the phase constant in rad. Determine the total energy in J. Determine the position (in cm) at t = 1.55 s.
December 7, 2011

Physics help please
An oscillator with a mass of 281 g has a speed of 119.1 cm/s when its displacement is 2.80 cm and 34.2 cm/s when its displacement is 7.80 cm. What is the oscillator's maximum speed (in m/s)?
December 7, 2011

Physics
I know one oscillation is 48seconds (I was given a sinusoidal graph to determine the previously stated values from)
December 7, 2011

Physics
How do you calculate the phase constant in degrees given amplitude and frequency?
December 7, 2011

piece of doo-doo
piece of doo-doo+doo=doo
December 6, 2011

computer networking
what kind of network information can you gather from issuing commands on a router or switch?
December 6, 2011

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