Wednesday
October 22, 2014

Posts by Chris


Total # Posts: 2,210

Mat 116
-2x>1/9 {xix_ _}
June 13, 2010

Geometry HELP
true or false: if their sum is equal to 180 degrees, then angle D and angle B are supplementary
June 11, 2010

child growth development
Which of the following mothers has the greatest chance of birthing a baby with birth defects due to contracting rubella during preganancy? A. A woman who has the illness during the first month of preganancy B. A woman who contracts the disease during the second trimester C. ...
June 9, 2010

math
1.5/2 2.1\5 3.1\6 4.3\16 5.30\11 6.1\2
June 8, 2010

project on alternative renewable energy souses
should i do a power point or a model display
June 7, 2010

physics
Do any of these five objects move in similar ways? Which ones? What do they have in common? -Oscillating pendulum -dynamics cart rolling up and down an incline -student jumping into the air -mass oscillating at the end of a spring -ball tossed into the air
June 6, 2010

Physics
it will be 26
June 6, 2010

Information Science
ABC Company has 50,000 employees at it headquarters. The company wants to increase employee productivity by setting up internal software application training program for it employees. The training program will teach employees how to use Microsoft software programs such us ...
June 1, 2010

SCI/275
please help
May 27, 2010

chemistry
what volume of O2 at STP is needed to react with 4.52 g of K
May 25, 2010

Math
when i fill in 3(5)+ 8y = 16 it doesnt comeout even though
May 25, 2010

Math
How do i solve this system algebraicly? 3x + 8y = 16 5x + 10y = 25
May 25, 2010

math
Find the slope of the line passing through the points (7, 0) and (0, 10).
May 24, 2010

medical
For each body system, identify which body approach(es) might best be used to organize information. Choose only from the following approaches: microscopic-to-macroscopic, body directions and planes, body cavities, and quadrants and regions
May 21, 2010

Science
Is this correct? The Change of energy of a Slingshot: Elastic Potention-Gravitational potential-potential?
May 20, 2010

Science
Is this correct? The Energy Transformation of a Slingshot: elastic Potential-Kinetic-Potential
May 20, 2010

Pre-Calc
Thank you so much, this was very helpful :)
May 16, 2010

Pre-Calc
Find f(a) where a is in the domain of f. f(x) = -1/x^2 I got a few steps into it and failed :( The equation she gave me to plug it into is (f(a+h)-f(a))/h
May 16, 2010

health
How to over come barriers of intimacy
May 16, 2010

7th grade math
A farmer grows 196 pounds of potatoes. He sells them to a grocer who divides them into 5 pound and 20 pound bags. if the grocer uses the same number of 5 pounds and 20 pound bags, how many bags of each did he use?
May 12, 2010

Chemistry
Sulfur trioxide, SO3, is made from the oxidation of SO2, and the reaction is represented by the equation 2SO2 + O2 2SO3 A 25-g sample of SO2 gives 18 g of SO3. The PERCENT YIELD of SO3 is?
May 12, 2010

Chemistry
A clear colorless liquid in an open beaker was heated to boiling. The liquid began to boil at 110°C, and as vapors escaped, the temperature of boiling gradually increased to 115°C, at which the heating was stopped. On the basis of this information, we can say that the ...
May 12, 2010

Chemistry
A sample of an oxide of antimony (Sb) contained 25.0 g of antimony combined with 8.2 g of oxygen. The simplest formula for the oxide is?
May 12, 2010

Chemistry
C3H8 + 5O2 3CO2 + 4H2O How many grams of oxygen are required to burn 7.0 g of C3H8?
May 12, 2010

Chemistry
Ammonia, NH3, and oxygen can be reacted together in the presence of a catalyst to form only nitrogen(II) oxide and water. The number of moles of oxygen consumed for each mole of NO that is produced is?
May 12, 2010

Chemistry
How many grams of lithium nitrate, LiNO3, are required to prepare 3.00 × 102 mL of 2.00 × 10–1 M solution?
May 12, 2010

Math-Alebra
Oops, forgot he wanted to play 14 commercials altogether. If he did play only 30 sec. commercials he would be over 14. For both 30 and 60 sec. commercials. You would have to set up some sort of equation.
May 7, 2010

Math-Alebra
For the first problem change 11 min to seconds by multiplying by 60. Because there is 60 seconds in one minute. 11 min. * (60 sec./1 min) = 660 sec. So for 30 sec. commercial 660/30 = 22 commercial For 60 sec. commercial 660/60 = 11 commercial
May 7, 2010

Algebra 2
It's really Natural Logarithm I would recommend looking at the rules for both Logarithm and Natural Logarithm.
May 7, 2010

Algebra 2
Using quotient rule of logarithms ln(m/n) = ln(m) – ln(n) so ln(1)-ln(2) = ln(1/2)
May 7, 2010

Alg 2
One way it helps to look at roots of 3rd degree is that it's the same as the what is under the root to the power of (1/3). Ex: (3√x)= x^(1/3) I would then do this with a higher polynomial like (3√x^5)= (x^5)^(1/3) = x^(5/3)
May 7, 2010

calculus
Thanks Helped a lot
May 7, 2010

calculus
I set both y equal to each other to find the points of integration. squared both sides (((25-(x^2))^(1/2))=3)^2 then becomes (x^2)=25-9 Result x= +(14^(1/2) and -(14^(1/2) I don't know what to use, as in the disk or washer method.
May 7, 2010

calculus
Find the volume of the solid when the region enclosed by the curves y=((25-(x^2))^(1/2))and y=3 is revolved about the x-axis. I already have the answer = (256*pi)/3, but don't know how to set up.
May 7, 2010

Physics
pA = pB = 2 atm = 2 * 101325 Pa = 202650 Pa vA = 1 L = 1 * 10^-3 m^3 vB = 5 L = 5 * 10^-3 m^3 W(A to B) = 202650 * (5 * 10^-3 - 1 * 10^-3) = 202650 * 4 * 10^-3 = 810.6 J W(B to C) = 0 (because volume is constant) W(in complete cycle) = 480 J W(in complete cycle) = W(A to B) + ...
May 7, 2010

5th grade
Thanks. I thought a square would not be classified as a rectangle.
May 6, 2010

5th grade
I need to have 7 and have already used up the whole numbers 1X13, 2X12, 3X11, 4X10, 5X9, 6X8, so what is the 7th rectangle measurement????
May 6, 2010

5th grade
If I have a perimeter of 28 inches, how many rectangles can I draw and what are the dimensions?
May 6, 2010

chemistry2
if 160g of Al reacts with O2 to produce 260g of Al2O3.calculate the theoretical yield and the percent yield 4Al+3O2 2Al2 O3
May 5, 2010

Chemistry
What is the pH of 50.0 M HF and 25.0mL of 1.0 M NaOH?
May 4, 2010

PHYSICS
A sample of monatomic gas (ã = 5/3) is expanded adiabatically from an initial temperature, volume, and pressure of 230. °C, 7.00 litres, and 7.00 kPa, respectively, to a final volume of 10.0 litres. (a) What is the final pressure of the gas? (answer 3.86 kPa) (b) ...
May 2, 2010

math
the statue of liberty is 150 feet tall, and stands on a 150 foot pedestal. How far from the base should you stand to have the statue subtend the largest possible angle at your camera lens, assuming the camera is held 5 feet off the ground and the ground is flat?
May 2, 2010

8th grade
what it he reason a spoon gets hot when put in a bowl of hot soup?
April 30, 2010

Physics
it didnt let me put the link to image.. A tube of radius 5 cm is connected to tube of radius 1 cm as shown above. Water is forced through the tube at a rate of 10 liters/min. The pressure in the 5 cm tube is 1×105 Pa. The density of water is 1000 kg/m3. Assume that the ...
April 27, 2010

math
mikes average on the first four exams in econ 1A is 88. what must he earn on the next exam to raise his overall average to 90
April 27, 2010

Trigonometry
1. Find the exact value of the following (Think identity) Cos(2 Arccos(5/13)) 2. Solve the following equation for 0° ≤ Θ < 360° Sec(Θ)= tan(Θ) + cos(Θ)
April 26, 2010

algebra
the area of the parallelogram is 96 square miles. Find its base and height. if the base is x+5 and the height is x-5
April 23, 2010

IT
Design a system which will take in the results for the five criterion levels of achievement for each phase of the design cycle: Investigate, Design, Plan, Create and evaluate. The system will then calculate the average and round up to the nearest decimal place. It will then ...
April 21, 2010

english
i think its a
April 20, 2010

english
n which one of the following sentences does the verb agree with the subject? A. The book that explains the plays is on the shelf. B. There is a million reasons why I shouldn’t go. C. Who is the people in the photograph? D. Here is the reasons we can’t start the car.
April 20, 2010

Acoustics: Noise Vibration and Noise Control
Hi there mate, sorry late reply. I havent really got any further. And my tutors dont really understand it. Have you?
April 18, 2010

Acoustics: Noise Vibration and Noise Control
Helicopter Noise Transmission It is planned to introduce a regular helicopter service from a helipad at ground level in a hospital premises. There will be four arrivals and four departures per day but never more than one arrival and one departure in any hour. There is a school...
April 18, 2010

trig
suppose that sin(x) + cos(x) = 4/3 a)square this result and find a value for sin(x)cos(x). b)using the result from a) find the exact value of sin^3(x)+cos^3(x). (Hint: Do you recall how to factor x^3 + y^3)
April 14, 2010

chemistry
In a certain chemical reaction 1.00 gram of product is produced in 15 minutes when the reaction is carried out at 20oC. Assuming that there is sufficient starting material available, how much product will be produced in the same length of time if the reaction is carried out in...
April 12, 2010

chemistry
In a certain chemical reaction 1.00 gram of product is produced in 15 minutes when the reaction is carried out at 20oC. Assuming that there is sufficient starting material available, how much product will be produced in the same length of time if the reaction is carried out in...
April 12, 2010

Management of Information Sy
Assignment: Hardware Replacement Project The IT department is implementing a new CRM solution to its corporate offices. The hardware currently in use is out of date and will not support the CRM application. The hardware must be replaced prior to deployment. • Resources: ...
April 11, 2010

Physics Help Please!
The change in temperature is 12 deg C if it rises from 15 to 27 degrees. 1. Find the mass of water from volume of water times its density. 2. Find the heat in Joule needed from Q=mct where m is mass of water, c is specific heat capacity and t is rise in temperature. Then the ...
April 6, 2010

Physics
Work done is force times distance moved. In 6 seconds, at 4m/s the box moves___m Force times distance = ______
April 6, 2010

Chemisty
Using slater's rules: S = 4.15 Zeff F^- = 4.85 Zeff Na^+ = 6.85 *these answers are in e^-(electrons)*
April 5, 2010

Physics
An ideal gas is squeezed slowly from state A (pressure-600 kPa, volume- 1 L) to B ( pressure-400kPa, volume- 0.5 L). What is the work done or received by the gas?
March 27, 2010

Penn Foster Writing Assignment Writing Skills
Could any one help me with this maybe email me and walk me through so steps!!
March 24, 2010

Penn Foster Writing Assignment Writing Skills
I have to do the same thing but im a little slow when it comes to writing so i have know idea what to do. Also i have know idea what have of this stuff is even though i took some test and still read it.
March 24, 2010

math
is the answer 12
March 24, 2010

math
A cyclist and a jogger start from a town at the same time and headed for a destination 24 mi away. The rate of the cyclist is twice the rate of the jogger. The cyclist arrives 3hrs ahead of the jogger. Whats the rate of the cyclist?
March 24, 2010

college chem
To solve this, you require the Henderson-Hasselbach equation: pH = pKa + log(conc.base/conc. acid) You have pH and pKa, so plug in the numbers, and solve for the ratio of Base/acid. With some algebra, you can then figure out the volume amounts of each species.
March 23, 2010

5th grade
how can 2and2 3thirds be equal to 16 sixths
March 22, 2010

Accounting
using the financial statements of landry's restaurant located in appendix a of the text fundamentals of financial accounting 1st ed by phillips libby and libby compute teh following ratios for 2002 and 2003 a. Return on Equity b. Inventory Turnover I cannot locate in ...
March 20, 2010

Statistics
Choose the right answers, and provide reasons and calculation To study the effect of change in price of a DVD ($) on the total profit (000, dollars), the analyst of an electronic firm randomly selected 13 retail sales stores. She used the data on total profit (y) and DVD price...
March 17, 2010

Statistics
Choose the right answer, and provide the reasons and calculations. A palmist claims that he can accurately predict the age at death (y) of an individual from the length (centimeters) of age line (x) on the right hand of the individual. A random sample of 20 dead individuals ...
March 17, 2010

Statistics
Choose the right answer, and provide the reasons and calculations. A palmist claims that he can accurately predict the age at death (y) of an individual from the length (centimeters) of age line (x) on the right hand of the individual. A random sample of 20 dead individuals ...
March 17, 2010

Business Communications
Which of the following sentences uses passive voice appropriately? A:"Your order was shipped yesterday and should arrive Friday." B:"The shipping clerk sent your order yesterday and it should arrive by Friday." C:"The decision was made after much ...
March 16, 2010

Chemistry
.445 L
March 13, 2010

Math
Use the fact that (125)^1/3 = 5 and the tangent line approximation to estimate (123)^1/3
March 13, 2010

Accounting
FIN 200 Checkpoint: break even analysis
March 11, 2010

pre alg
-8/75
March 11, 2010

Math 98 pre algebra
thank you
March 11, 2010

Math 98 pre algebra
14 and 2/3 times 2 and 2/11 divided by 3 and 3/8. i got =234 and 1/4 am I correct and if not what is the answer?
March 11, 2010

math
40 is what percent of 800
March 9, 2010

math
8.02-3.696
March 9, 2010

Geometry
cos x°=15/17 tan 76°=13/x
March 9, 2010

Physics
Two point charges, 5.0 µC and -2.0 µC, are placed 5.0 cm apart on the x axis, such that the -2.0 µC charge is at x = 0 and the 5.0 µC charge is at x = 5.0 cm. At what point(s) along the x axis is the electric field zero? I'm not exactly sure how i ...
March 9, 2010

Math
a circular track runs around a park. there is a sidewalk that connects two points on the track that runs through the center of the park. the sidewalk is 100 ft. long. How long is the track to the nearest half foot?
March 8, 2010

Math
I see it now,because a diagonal divides a parallelogram into two congruent triangles! Thank you!!
March 5, 2010

Math
So one side of the rhombus is equal to seven? I'm still confused as to how you got your answer...
March 5, 2010

Math
In rhombus DEFG, if m<DEF=60, and the shorter diagonal DF has a length of 7, find the length of the side of a rhombus.
March 5, 2010

Geometry
In rhombus PQSR, PQ=y+8 and QS = 4y-7. Find PQ. Also... In rectangle ABCD,AB=x+15, BC=x-8, and CD=2x+3. Find: 1)x. 2)AB 3)BC Thanks!
March 5, 2010

chemistry
When one pound of gasoline (made up of compounds of hydrogen and carbon) is burned in an automobile approximately 3 pounds of carbon dioxide, CO2, is given off. Carbon dioxide is one of the gases contributing to global warming. What information from this experiment helps ...
March 3, 2010

Math
5 didnt
March 3, 2010

Chemistry
Can someone explain hybrid structures and resonance structures.
March 2, 2010

French
I really do not know how to unscramble these two french olympic winter game words. They are: NDIIMOCORBQUENE and UPSOCEETRTI. Could you please help me?
March 2, 2010

math
in a balloon race,the sum of the distances covered by two of the balloons was 1,025 miles.if the distance covered by the first balloon was 50 miles more than 1/2 of that covered by the second balloon,how far did each travel?
March 1, 2010

math
at the town waterworks,2 large pumps and 4 smaller ones delivered 4,800 gallons of water a minute.each of the large pumps delivered 4 times as much water as each small pump.how many gallons per minute did each pump deliver?
March 1, 2010

math
a man paid $8.50 for a small pump and 8 feet of tubing.he paid 12 times as much for the pump as for each foot of tubing.how much did the pump cost? the tubing?
March 1, 2010

Physics
An electron moving to the right at 3.0% the speed of light enters a uniform electric field parallel to its direction of motion. If the electron is to be brought to rest in the space of 4.5 cm, determine the following. What direction is required for the electric field? What is ...
March 1, 2010

5th grade science
How might the history of the US be different if the first European settlements had occurred on the west coast instead of the east coast?
February 25, 2010

Chemistry
in this experiment you are you will begin by preparing a dilute soultion of sodium hydroxide by taking 50 ml of 3 M NaOh stock solution and diluting it with 250 ml of water. i found that and the answer was .5 but how do i do this b. calculate the number of moles and grams of ...
February 23, 2010

Global History
Thanks, Ms. Sue!
February 23, 2010

Global History
So, in this way, the British became imperialistic over Ireland? The British supressed Ireland's rebellions only to keep making the Irish export wheat and Barley?
February 23, 2010

Global History
How does the English government's attitude toward the Irish during the Irish famine in the late 1840's reflect the motivations for imperialism?
February 23, 2010

chemistry
I believe it comes out to CaSO4 x 2H20 20.9% 2:1 ratio I think haha
February 19, 2010

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