Questions Asked on
May 27, 2011

chemistry
A furnace that provides heat by burning methane gas must have the correct mixture of air and fuel to operate efficiently. What is the mole ratio of air to methane gas in the combustion of methane? Hint: Air is 20% oxygen.
asked by john 
Math
Log functions: A new car has an interior sound level of 70 dB at 50 km h. A second car, at the same speed, has an interior sound level that is two times more intense than that of the new car. Calculate the sound level inside the second car.
asked by Aimee 
physics
Find the horizontal distance the skier travels before coming to rest if the incline also has a coefficient of kinetic friction equal to 0.23. (The incline makes an angle θ = 20.0° with the horizontal.)
asked by sarah 
geometry
A rectangular solid has sides of 10 cm, 6.5 cm, and 8.3 cm. What is its volume and surface area?
asked by leo 
algebra 2
The amount of money in an account with continuously compounded interest is given by the formula A=Pe^rt , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes
asked by David 
Chemistry
need to calculate percent yield of MgNH4PO4 . 6H2O obtained in my experiment using 105210 plant food label as a guide to determine the theoretical yield of MgNH4PO4 . 6H2O. My calculations so far: air dry weight of MgNH4PO4 . 6H2O = 2.30 g Grams of
asked by Julia 
Math 9th grade slopes
A line connecting (5, 6) to another point has an undefined slope. What is the closest point on this line with whole number coordinates below (5, 6)?
asked by Chelsea 
Chemistry
How many moles of Fe3O4 are produced from 4.1 moles of Fe ?
asked by paris 
algebra
One jar holds 16 red marbles and 4 blue marbles. A second jar holds 75 white marbles and 25 blue marbles. What is the probability that a blue marble will be drawn from both jars?
asked by Anonymous 
Science
A researcher is gathering data from four geographical areas designated: South=1;North=2; East=3; West=4. The geographical regions represents a. categorical data b. quantitative data c. directional data d. either quantitative or categorical data
asked by John 
Math
Members at a yoga school pay $8 per class plus a onetime $90 membership fee. Nonmembers pay $12 per class. How many classes would a member have to take to save money compared to taking classes as a nonmember?
asked by Alexandria 
algebra
Abbi invested $1,200 in a certificate of deposit with a simple interest rate of 2%. Find the interest earned in 9 years. Then find the total of principal plus interest.
asked by breanna 
art history
Compare and contrast the art and sculpture of MesoAmerica and Africa. In your discussion, include the purposes for this art and sculpture.
asked by rosie 
C++
File version maintenance utility A team of software developers has been asked to develop a file version maintenance utility . The utility should maintain all the version of a file. When a user modifies a file, the current version of the file should be
asked by Shodipo john Olawale 
english
Can you fix this sentence? "When the movie Star Wars premiered in 1977, it was both surprising and a revolution in its special effects."
asked by amber 
PRECALCULUS
An airplane is flying at a speed of 250 mph at an altitude of 4 miles. The plane passes directly above a radar station at time t=0. Find the distance s between the plane and the radar station after 5 minutes.
asked by OSCAR 
verbs
What are the verbs in this sentence? He suffered an injury to his knee, and this is causing him pain and discomfort.
asked by Anonymous 
accounting.pls help me
Is anyone can help me to solve this problem beloww. thank you very much. PROBLEM 1: On Jan 1, 2011, the Rhiri, Brit & Keisha partnership is formed. Rhiri and Brit contribute cash of $30,000 and $20,000 respectively, while Keisha contributes assets with the
asked by jessie 
algebra
The area A of a parallelogram with base b and height h is given by A= bh. Find the area of the parallelogram when the height is 15.4 cm and the base is 6.5cm
asked by shawn 
algebra
The amount of money in an account with continuously compounded interest is given by the formula A=Pe^rt , where P is the principal, r is the annual interest rate, and t is the time in years. Calculate to the nearest hundredth of a year how long it takes
asked by david 
algebra 1
if you have two spinners,the first spinnerr has three sections: 1,5,6.the second spinner also has three sections:5,4,8.if you spin both spinners and ADD the two numbers,what is the probability that the sum will be negative?
asked by tyyyyyy 
Algebra 2
Find the sum of the infinite series 1/3+1/9+1/27+... if it exists
asked by Alexis 
English
(give the syllable pattern only) legal, cedar, about, elect, frozen __________ (give the syllable pattern only) batter, hoodwink, lectern, lesser __________ (give the syllable pattern only) noble, puzzle, kettle, bugle
asked by Kaitelyn 
Science
What are the theoretical molar ratio values for Ag:Cu and Ag:AgNO3? Compare these values to the values you got in your experiment and compute a percent error for your work.
asked by Christine 
Life orientation
Critically discuss 5 ways in which the human or environmental problems impacts on the community
asked by Anonymous 
Statistics
Which of the following is NOT sensitive to extreme values? A) the range B) the standard deviation C) the interquartile range D) the coefficient of variation I pick B the standard deviation
asked by Alex 
Math
A container in the shape of a rectangle solid with the dimensions of 4 X 5 X10 is placed so that its height is 10. Water fills the container to a heaight of 6. The container is then turned so that the base dimensions are 4 X 10. Determine the height of the
asked by Alex 
English
Which word would you use in American English instead of "top up"? (When you put money on your cell phone) I need you to check these sentences, too. Than you. 1) They set out on a windy day though small boats had been warned to stay off (I need a synonym)
asked by Henry1 
sociology
What are some examples of emerging mores related to dating
asked by alli 
Math
In how many different ways can you arrange three 4 X 8 tiles to form a rectangle?
asked by Louise 
business
180 Flip  a 180 degree boardslide varial kickflip 360 Flip – A 360 degree boardslide varial kickflip 5050 – both trucks grinding on an object 50 – only the back truck grinding on an object Backside – turns or rotations in the direction your toes
asked by john 
algebra
When factored completely 4x^2y8x^2y^2=2xy(2x4xy+3y)
asked by stellalue 
Math 116
In 1920, the record for a certain race was 45.7 sec. In 1950, it was 45.1 sec. Let Ra9ta0=the record in the race and the number of years since 1920. A. Find a linear function for the data B. Use the function in (a) to predict the record in 2003 and in
asked by Kim 
math
Janet is painting her fence, which is 26 m long. If she has already finished 12 m, how many more meters of fence have to be painted?
asked by lisa 
Beautiful Paradise
I discover a new island as I'm travelling. I am the first to discover the land so I am granted a right to own it and I can establish my own nation there. There is a lot to this project. And I'm wondering if you could suggest a good name for this paradise.
asked by mary 
Suggestions
I am doing a Brochure for my Economic Project. And I'm literally attracting customers to come to my island and buy things since I and my crew have set up our very own business there. Could you suggest me good sites on which I can make a brochure. I have
asked by mary 
History
What was one SOCIAL REASON why the Han Dynasty fell ?
asked by Jamale 
polynomial
(7x+4)(2x+9)
asked by Anonymous 
math
tha sum of two number is 25 times tha difference between these two numbers.if 75%of smaller number is 18 what is tha other number.
asked by shweta 
physics
what is the maximum velocity of a 6 kg object oscillation on a 4 m string. If the mass starts when the string makes a 45 degree angle with horizontal when the object is released from rest
asked by Anonymous 
rate of change / slopes
A line connecting (5, 6) to another point has an undefined slope. What is the closest point on this line with whole number coordinates below (5, 6)?
asked by Chelsea 
algebra
When factored completely 4x^2y8x^2y^2=2xy(2x4xy+3y)
asked by stellalue 
Math
Here's a frequency distribution table for the speeds of a sample of automobiles. Speed(MPH) Frequency Midpoint(I found) 5054 2 52 5559 4 57 6064 5 62 6569 10 67 7074 9 72 7579 5 77 I am trying to find the variance but whatever I do I can't seem to
asked by Allen 
algebra1
there is an class of 28 students.13 students are girls. what is the ratio of girls to boys in the class?
asked by Anonymous 
science
What do you think of carbon offsets. Do you agree/disagree?
asked by Anonymous 
algebra 1
a model submarine that is 15 inches long and 3inches tall.the full size submarine was 60 feet tall.how long was the full size submarine?
asked by tyyyyyy 
science
What do you think of carbon offsets. Do you agree/disagree?
asked by Anonymous 
algebra 1
The perimeter of a triangle is 72 cenimeters.the second side is twice as long as the first side.the third side is four centimeters shorter than the second side.how long is the first side?
asked by tyyyyyy 
trig
find the exact zeros of the function in the interval [0, 2π) 2 cot squared x + 3 csc x=0
asked by shinel 
prealgebra
which shows the ratio as a fraction in simplest form? 30 to 65?
asked by alisa 
science
what causes tornadoes to happen?what is the difference betwwen a tornado and a hurricane?
asked by danny please help!! 
Elementary Algebra
I need to translate to an algebraic expression. 3/10 decreased by the product of 7 and the difference of A and 4
asked by Tonia 
algebra1
simplify the following rational expression: 4(x+2)^8 (x3)^6 __________________ 20(x+2)^2 (x3)^12 note:the expression is all together.sorry for how it looks.
asked by tyyyyyy 
algebra 1
4(x+2)^8 (x3)^6 ________________ 20(x+2)^2 (x3)^12 note:sorry that the expression on top of the line is so farr
asked by tyyyyyy 
chart audits
Outline a possible procedure to conduct chart audits
asked by Anonymous 
History checkpoint
From the list provided below, you must decide if each item was an initiative only within Kennedy’s New Frontier, if it was proposed by both presidents, or if it was an initiative only within Johnson’s Great Society. For each numbered item, place an
asked by KRP 
math
the sale of flower by alin,izzati and damia are in the ratio 3:9:7.the difference between the sales by alin and dania is rm 36.how much did izzati get from her sales?
asked by tyramichy 
Earth Science
which of the following locations in New York State is most likely to have the smallest range in temperature? 1. Long Island 2. the Catskills 3. Albany 4. the Adirondack Mountains
asked by Danny 
Finance
Having previously identified the location of its Greenfield investment, Acme, a multibillion public MNE that is incorporated in the U.S., must next obtain external financing for its proposed overseas production facility. It has been estimated that the
asked by Roy 
COM 155
Write 2 paragraphs about how interest rates affect our purchasing descisions. Identify the topic sentence by underlining it. Interest rates is the price that the lender sets for the borrower to pay as a fee to borrow money. Depending on whether or not
asked by Richelle 
SCIENCE(PHYSICS)
a train is moving on a straight track n travels at a speed of72km/hr and passes a pole in 3 seconds. find the time taken by the train to pass the bridge of length of 540 m?
asked by YASH 
misc.
if something says your pursuing a college degree does that mean your in college are are planning in the future to go to college?
asked by Sara 
sci
Replacing pillage and destruction, “goinggreen” seems to be today’s top advocacies among business establishments in taking part for promoting energy conservation and environmental friendly themes. Do you think we’d ever have a time when this
asked by meshelle 
Economics
which of the following factors will not lead to a decrease in demand for a good? A) an increase in the price B) a decrease in the price of substitute products C) An unsuccessful advertising campaign for the good C) a decrease in the consumer incomes I
asked by Ed 
algebra 1
if you have a 10ft ladder placd leaning against the wall,and the ladder is 6ft from the wall.how high does the ladder reach on the wall?
asked by tyyyyyy 
earth
Which of the following is NOT one of the six steps of IPM? Choose one answer. a. evaluating and recording results. b. properly identifying pest damage. c. Trapping pests for return to native ecosystems. d. learning pest and host life cycles. Which of the
asked by raymond 
science
what causes hurricanes to happen?
asked by danny please help!! 
math
There are approximately 4 lbsof muscle for every 5 lbs of body weight of a certain animal. For a 125lb animal, how much of the weight is muscle?
asked by Leina'ala 
school in general
Hi i have a question im currently in 7th grade but i was held back a year in first do you think there would be any possible way to advance to 8th grade just curios I believe I have a wide enough knowledge span to pull it off but im just questioning the
asked by JESSE 
trig
sec(90degrees theta)
asked by john 
Math
How many digits are in the smallest positive number divisible by th first ten numbers in the Fibonacci sequence?
asked by Eli 
math
when 33 is subtract from a number it reduce to its 5/8.what is number.
asked by shweta 
HISTORY
WHAT WAS THE MOST EFFECTIVE REMEDY FOR PLAGUE
asked by BOB 
HISTORY
What was the most effective remedy for plague? A. Snake venom B. Quarantine C. Abstaining from eating certain foods D. Armenian clay
asked by BOB 
math
18x  16 + 6( 2  2x) = 50
asked by frances 
sci
Would you support stores such as Costco because they have never stored a single plastic bag and push consumers to use alternate means to carry the stuff that they buy?
asked by meshelle 
English
I REALLY need help in this Double Shift word problem by Gloria Rosenthal. The following real or fictional people all "do" or "did" something; their activities are dependent on their names. From each clue, identify the person, take their first name or
asked by james 
chemistry
how much of 0.5normal fas is equal to molar
asked by eswari 
english macbeth
i really nedd to know what i'm suppose to write in macbeth's theme superstition? i know that it's about the witches and their prophecies and apparitions and about banquo's ghost but what should i emphasize on??
asked by mona 
algebra
The area A of a triangle with base b and height h is given by A=1/2bh. Find the area when b=45m(meters) and h=86m.
asked by shawn 
PreAlgebra B
A Venn diagram with two circles is drawn. Each circle has a diameter of 10 cm. The overlapping area is 20 cm^2. Find the total writing area within the diagram.
asked by tyryssa 
microeconomics
Explain how Demand, Elasticity, and Total Revenue are all related to each other. Explain this relationship using at least two examples that incorporates all three concepts I have the concepts and how they relate I just need one more example and my brain is
asked by DebGut 
math
Convert to decimal notation. 2/3
asked by shawn 
Mathematics for business and Finance
The Patel family recently purchased a home, taking out a mortgage of $235,000 at 8 1/2% for 25 years. Excluding taxes and insurance, what is the monthly PITI payment of their loan?
asked by Sandy 
Brand ImageNeed of Extreme Help
How do the components of Adidas create the product image? The components are the Logo—which is the 3 stripes, is there a trademark for Adidas? The other component is the slogan which is—Impossible is nothing. The Brand name which is Adidas is also a
asked by mary 
AdvertisingVIdeo
I have to find two video ads on the net. I want them to be really Influential. Is there any on net that you know which are really influential. I don't watch TV that much so I'm not aware of any commercials that people may get hooked onto. Brand name ads
asked by mary 
math(easy integration)
find the integration of absolute x from 4 to 2? could anyone show me the way to get 10? thanks
asked by ja 
Chart Aduit
research and recommend associations that may want to be affilated with to keep themselves informed on health care standards
asked by Anonymous 
geometry
what is the approximate measure of angle A to the nearest tenth of a degree
asked by logan 
physics
A 0.8 kg block is shot horizontally from a spring, as in the example above, and travels 0.545 m up a long a frictionless ramp before coming to rest and sliding back down. If the ramp makes an angle of 45.0° with respect to the horizontal, and the spring
asked by sarah 
Math
The product of three consecutive odd integers reduced by 23 is 99 less than the cube of the sum of the smallest number and 2. Compute the mean of the three integers.
asked by Theo 
SCIENCE(PHYSICS)
a train is moving on a straight track n travels at a speed of72km/hr and passes a pole in 3 seconds. find the time taken by the train to pass the bridge of length of 540 m? Sir in the solution i understood why we will get27 sec. but why we will add 3 sec?
asked by YASH 
rate of change / slopes
A line connecting (5, 6) to another point has an undefined slope. What is the closest point on this line with whole number coordinates below (5, 6)?
asked by Chelsea 
business
• Birdhouse Completes • Charger • Chase CAB • Flip Appleyard • GBoard • Kryptonics Eagle • Maple Bronze Series • Ocean Pacific Longboards • Sector Nine • Tony Hawk • World Series Gas Chamber • Worldhouse Detention Desk
asked by asdfjkl; 
algebra 2
how would you sold (x^3)^9
asked by Cass 
Geometry
Find the area of 33m, 30m, and 36.5m.
asked by Stacey 
History
How and why did warfare change under classical societies such as China?
asked by Anonymous 
English
I REALLY need help in this Double Shift word problem by Gloria Rosenthal. The following real or fictional people all "do" or "did" something; their activities are dependent on their names. From each clue, identify the person, take their first name or
asked by james 
physical science
how many beats in 206 Hz
asked by ronald 
MATH
How can I find the line of best fit from a table: 3 4 8 10 15 21 27 31 35 33 47 45
asked by Branson 
calculus
The tangent to y = (ax)+b/(sqrt x) at x =1 is 2xy=1. Find a and b. help?
asked by Maya 
com
why is the sequence of your paragraphs important in an essay
asked by Joseph 
history 135
Most Significant Events 19501990
asked by Gloria Jackson 
Math 116
Correction Let R(t)= the record in the race.
asked by Kim 
grammar
is oi like in point long sound or short sound?
asked by Phillip 
English
I'd like you to check these few sentences for me. Thank you very much. 1) I'd hate to lose (and not losing) my ring because it was my grandmother's. 2) I use the internet to do school research and to look up information I need for school. 3) I'm a Tim
asked by Henry1 
accounting
please can you help how to get the answers fpr this problem solving .. I am really could not get the correct answer. problem: On Jan 1, 2011, the Rhiri, Brit & Keisha partnership is formed. Rhiri and Brit contribute cash of $30,000 and $20,000
asked by jessie 
math
Find a function f which satisfies the integral equation Int(bounded from 0 to x) t*f(t)dt = Int(bounded from x to 0)(t^2+1)*f(t)dt +x
asked by bob 
earth science
which of the following surfaces would absorb the least amount of insolation? 1. an open field 2. a forest 3. an asphalt parking lot 4. a glacier
asked by Danny