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2011
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Questions Asked on February 16, 2011

Name the lenghts of the sides of three rectangles with a perimeter of 12 units use whole numbers only. I don't understand the
1. 12 answers
2. asked by malachi
3. 5,935 views
how much work is required to lift a 10 newton weight from 4.0 meters to 40.0 meters above the surface of earth
1. 3 answers
2. asked by abu
3. 5,219 views
Calculate the concentration of OH¯ ions in a 1.4*10^-3 M HCl solution
1. 5 answers
2. asked by Sara
3. 4,823 views
Balance the following redox reactions by inserting the appropriate coefficients.Al + MnO2 --> Al2O3 + Mn HNO3 + H2S --> NO + S +
1. 1 answer
2. asked by Harold
3. 4,255 views
What does a positive test for an ion mean?
1. 3 answers
2. asked by Yassna
3. 4,126 views
Two blocks are arranged at the ends of amassless string as shown in the figure. The systemstarts from rest. When the 1.67 kg
1. 3 answers
2. asked by billy
3. 3,961 views
A coiled Hookean spring is stretched 10 cm when a 1.5kg mass is hung from it. Suppose a 4 kg mass hangs from the spring and is
1. 2 answers
2. asked by Kristin
3. 3,622 views
Match the root with its meaning. Match the items in the left column to the items in the right column.1. sect cut 2. graph write
1. 5 answers
2. asked by Hannah jane
3. 3,538 views
2Al + 3CuSO4 --> + 3Cu + Al2(SO4)3* copper(II) sulphate is a hydrate 1.2g of CuSo4 50mL of water 1.0 g of aluminum foil What is
1. 4 answers
2. asked by Sylvia
3. 3,514 views
A 0.145-kg baseball pitched horizontally at 27 m/s strikes a bat and is popped straight up to a height of 43 m. If the contact
1. 2 answers
2. asked by Johnathon
3. 3,455 views
A freezer has a coefficient of performance of 6.30. It is advertised as using 486 kWh/yr. Note: One kilowatt-hour (kWh) is an
1. 2 answers
2. asked by Z32
3. 3,061 views
How much of NaOH (in grams) is needed to prepare 546 mL of solution with a pH of 10.00 ?
1. 2 answers
2. asked by Sara
3. 2,856 views
In parallelogram WXYZ, m<Y = 65 degrees. What are the measures of W, X, and Z in degrees?
1. 3 answers
2. asked by Ryan
3. 2,825 views
A solution household bleach contains 5.25% NaClO, by mass. Assuming that the density of bleach is the same as water(1.0g/ml).
1. 5 answers
2. asked by TYLER CHIRECE
3. 2,762 views
A bullet is shot into a block of plastic. The bullet penetrates the block 0.75 m. The mass of the bullet is 8 g. It is traveling
1. 2 answers
2. asked by Johnathon
3. 2,418 views
You walk 53 m to the north, then turn 60° to your right and walk another 45m. Determine the direction of your displacement
1. 1 answer
2. asked by anonymous
3. 2,306 views
Notified by Alex's Engineering Co that Success's bid of $9000 on a proposed project has been accepted. Alex's paid a $2500 cash
1. 3 answers
2. asked by anonymous
3. 2,283 views
Consider different points along one spoke of a wheel rotating with constant angular velocity. Which of the following is true
1. 1 answer
2. asked by Chris
3. 2,279 views
A hot-air balloon is rising vertically at a speed of 10 m s–1. An object is released from the balloon. The graph shows how the
1. 1 answer
2. asked by tania
3. 2,205 views
what is the unit rate of, earn $75.20 in 8 hours, provide example.
1. 5 answers
2. asked by 45
3. 2,092 views
I have a ? that I am kind of stuck on. It says give an infinite list of natural numbers that are not prime. I know half of the
1. 1 answer
2. asked by Jon
3. 2,017 views
sodium metal is insoluble in ether.sodium metal dissolves in water to produce a gas. The copper bottom on a frying pan turns
1. 2 answers
2. asked by Renee
3. 1,915 views
How much energy does it extract from the outside air with coefficient of performance 3.85?A heat pump has a coefficient of
1. 2 answers
2. asked by Z32
3. 1,785 views
Part A of your history test has 15 multiple choice questions. Each question has four choices. Part B has 10 true/false
1. 2 answers
2. asked by John
3. 1,645 views
Japan became a peaceful, democratic nation relatively quickly after the end of World War II. Which step was not part of its
1. 3 answers
2. asked by Lumi
3. 1,616 views
please ineed answer for this question by his or her own word list some harmful effects of plagiarism. In other words, explain
1. 5 answers
2. asked by Anon
3. 1,608 views
How much of NaOH (in grams) is needed to prepare 546 mL of solution with a pH of 10.00 ?
1. 1 answer
2. asked by Sara
3. 1,592 views
A bicyclist starts a timed race at 6 mph In order to win, he must average 21 mph Assuming constant acceleration from the start,
1. 1 answer
2. asked by anonymous
3. 1,589 views
Express the volume of a sphere as a function of its radius. What is the domain of this function? Does this function have an
1. 1 answer
2. asked by steve plz help reply
3. 1,557 views
a box has length 10cm width 8cm and height 6cm what is the square area ?
1. 2 answers
2. asked by Anonymous
3. 1,554 views
on march 8, you sign a $4000 note with simple interest 10% for 240 days. You make partial payments of $1300 on May 26 and $2300
1. 5 answers
2. asked by JrUNCFan
3. 1,537 views
solve for x. 8x/10x-2 = 5x+3/7xi don't know how to get the x squares out of the equation!
1. 1 answer
2. asked by dccs
3. 1,529 views
An astronaut on a strange planet finds that she can jump a maximum horizontal distance of 10.0 m if her initial speed is 2.60
1. 1 answer
2. asked by Anonymous
3. 1,465 views
A temperature of a 10m long metal bar is 15C at one end and 30C on the other end. Assuming that the temperature increases
1. 1 answer
2. asked by jessica
3. 1,415 views
What is the sum of the interior angle measures in an equilateral triangle?
1. 3 answers
2. asked by Jameer
3. 1,405 views
A 0.55-{kg} croquet ball is initially at rest on the grass. When the ball is struck by a mallet, the average force exerted on it
1. 1 answer
2. asked by susan
3. 1,403 views
can you please tell me if these are right and if not could you please help?Like autobiographies, diaries are usually written in
1. 10 answers
2. asked by nikki
3. 1,382 views
A 45-kg sample of water absorbs 345 kj of heat. If the water was initially at 22.1 degrees c what is its final temperature
1. 3 answers
2. asked by Wyatt
3. 1,344 views
Two newly discovered planets follow circular orbits around a star in a distant part of the galaxy. The orbital speeds of the
1. 0 answers
2. asked by Gina
3. 1,332 views
Sung rented a truck for one day. There was a base fee of $17.99, and there was an additional charge of .90 cents for each mile
1. 2 answers
2. asked by Jena
3. 1,317 views
Eres mayor o menor que tu hermano?Would I say Soy mayor que tu hermano. if I was older than him? or should I say something else?
1. 1 answer
2. asked by Juilianne
3. 1,308 views
How could the index of refraction of salt water be used to find the concentration of a salt solution?
1. 1 answer
2. asked by Amy
3. 1,281 views
In an experiment, ligroin may be used as a solvent for the separation ofthe product from biphenyl. a. Can you suggest an
1. 0 answers
2. asked by Jodi
3. 1,244 views
According to a December 4 hospital census of 100, what are the total inpatient service days for December 5?Admissions 10
1. 0 answers
2. asked by Nadya Crouch
3. 1,213 views
Hello! Need some help from native speakers of English. I cannot understand the following sentence:One recent catalog featured a
1. 5 answers
2. asked by tee
3. 1,192 views
a rectangular swimming pool measures 20 feet by 40 feet. a walk of uniform width surrounds it. the total area of the pool and
1. 0 answers
2. asked by hi
3. 1,168 views
Olympia and Ophelia and the Artists’ Reflections. Compare Manet’s Olympia to Millais’s Ophelia. Discuss how each work
1. 1 answer
2. asked by Deann Morgan
3. 1,158 views
9x +5y=348x-2y=-2 solve by elimination
1. 4 answers
2. asked by kim
3. 1,146 views
A 850-kg race car can drive around an unbanked turn at a maximum speed of 61 m/s without slipping. The turn has a radius of 160
1. 1 answer
2. asked by Gina
3. 1,144 views
-9 + 36 divided by 6 times 2 -(-6) - 5 +2 = ?I'm having trouble with the order of operations.
1. 1 answer
2. asked by kristin
3. 1,138 views
does anyone know how to approximate the are and circumfrence of the region bounded by the given curvesy=cos(x^2
1. 12 answers
2. asked by jessica
3. 1,128 views
lynn is 6 years older than Linda.The sum of their ages is 36. What is Linda's age.
1. 3 answers
2. asked by brandon
3. 1,124 views
Art as a Vehicle of Propaganda. Discuss how art was used as a vehicle for propaganda in the works of Höch, Grosz, and Picasso.
1. 5 answers
2. asked by Deann Morgan
3. 1,122 views
A chain is held on a frictionless table with 1/3 of its length hanging over the edge. If the chain has length L = 33 cm and mass
1. 3 answers
2. asked by Ethan
3. 1,121 views
a solution of 4.65 of a carbohydrate in 100.0g of water has a density of 1.016g/mL and an osmotic pressure of 3.18 atm at 20.0
1. 1 answer
2. asked by Amy
3. 1,112 views
calculate the area 1.76 and 1.76 writr your 2 decimal answer to the two decimal places.i'm not sure if its 3.0976 and to the two
1. 3 answers
2. asked by chloe
3. 1,109 views
Here is a question that I am really stuck on and I need some help!!: In the Unites States, about one person in eight lives in
1. 1 answer
2. asked by Summer
3. 1,103 views
How do i do glide reflection on a graph?example. which glide reflection could map figure ABC to figure A'B'C'? a.translation of
1. 1 answer
2. asked by Christina
3. 1,099 views
The road rose at an 8 degree angle, what is the grade?
1. 1 answer
2. asked by Tom
3. 1,084 views
if csc= -7/10 and cos >0.a) draw a triangle in the correct quadrant with three sides properly labled. b) find the exact value of
1. 0 answers
2. asked by joey
3. 1,076 views
A manufacturer wants to assess the proportion of defective items in a large batch produce by a particular machine. He tests a
1. 0 answers
2. asked by shasha
3. 1,075 views
Q; growth,maturation,and learning are all used interchangeably with the term A.development B.maintenance C.exposure D.regression
1. 1 answer
2. asked by alex
3. 1,067 views
How would you define Emerson's idea of "mean egotism"?
1. 1 answer
2. asked by Ann
3. 1,064 views
1) What is the slope of a line that is parallel to y = 2?2) What is the slope of a line that is perpendicular to y = 2? 3) What
1. 1 answer
2. asked by Melanie
3. 1,063 views
A stone thrown from the top of a building which is 30m is given an initial velocity 20m/s verticaly upward.the stone misses the
1. 2 answers
2. asked by Mancoba
3. 1,057 views
On the way from a planet to a moon, astronauts reach a point where that moon’s gravitational pull transitions from being
1. 0 answers
2. asked by anonymous
3. 1,046 views
Find the 90% confidence interval for the variance and the standard deviation of the ages of seniors at Oak Park College if a
1. 3 answers
2. asked by bjacobs
3. 1,038 views
brett wants to use 40 feet of twine to mark off a rectangular area in his yard for a garden the length ans width for garden with
1. 2 answers
2. asked by julian
3. 1,037 views
Q; alcohol,drugs,radiation,and pollutants that affect a child's development are called A. teratogens B.toxic inhibitors
1. 2 answers
2. asked by alex
3. 1,034 views
A fisherman sets out upstream from Metaline Falls on the Pend Oreille River in northwestern Washington State. His small boat,
1. 1 answer
2. asked by Anonymous
3. 1,006 views
Suppose that two different tests A and B are to be given to a student chosen at random from a certain population. Suppose also
1. 1 answer
2. asked by Charles
3. 1,006 views
A cylinder that has a 40.0 cm radius and is 50.0 cm deep is filled with air at 20.0°C and 1.00 atm shown in figure (a). A 25.0
1. 0 answers
2. asked by loli
3. 1,003 views
a police siren emits a sinusoidal wave with frequency f=300hz.the speed of sound is 340ms. find the wave lenght of the waves if
1. 1 answer
2. asked by eric
3. 1,001 views
You need 3.0-L of 0.13 M salt solution. All you can find is 0.40 M salt solution. How much of that solution will you need in
1. 1 answer
2. asked by billy
3. 994 views
I really need you to check these sentences please.Thank you.1) A group of his fans were (not was?) waiting outside his flat. 2)
1. 2 answers
2. asked by Mike
3. 990 views
A motorcycle is traveling up one side of a hill and down the other side. The crest of the hill is a circular arc with a radius
1. 1 answer
2. asked by Gina
3. 978 views
selection ofcolored balls from two bags. Assume that each bag contains 4 balls. Bag a contains 2 red and 2 white, while bag b
1. 1 answer
2. asked by Hil-hellpp!
3. 976 views
need help in my homework to create a 300 words or more regarding a project like i'm in the market for a new personal printer.
1. 0 answers
2. asked by erianne
3. 973 views
A 55 kg skier is going down a slope with an angle of 47 degrees. Mk= 0.15. How fast is he going after 6 seconds?
1. 0 answers
2. asked by Kyle
3. 971 views
Assume that the box contains 9 balls:1 red, 2 blue, and 6 yellow. As in the text, you draw one ball, note its color, and if it
1. 0 answers
2. asked by Hil-hellpp!
3. 966 views
a grade 6 class has 15 boys 12 girls. what is the ratio of boys to girls in the class?
1. 1 answer
2. asked by Anonymous
3. 964 views
Discuss whether the minimum wage will reduce the poverty trap?I need 3 ways for and 3 ways against
1. 5 answers
2. asked by Hannah
3. 963 views
A traffic engineer monitors the rate at which cars enter a freeway onramp during rush hour. From her data, she estimates that
1. 1 answer
2. asked by justin
3. 962 views
Which of the following best describes the Columbian Exchange that occurred during the Age of Discovery?A. It was a genetic shift
1. 4 answers
2. asked by Anonymous
3. 960 views
An electric saw uses a circular spinning blade to slice through wood. When you start the saw, the motor needs 6 seconds of
1. 2 answers
2. asked by olivia
3. 957 views
solve using the substitution method. If the system has no solution or infinite number of solution state this4x+4y=-36 4x+4y=12
1. 1 answer
2. asked by Tammy
3. 947 views
Q; What are the three main factors in a readiness model? A.maturation,learning,and motivation B.height,weight,and age
1. 2 answers
2. asked by alex
3. 943 views
How do I find the indefinite integral of h(u)=sin^2(1/5u) this is one fifth u. Does it involve double angle formulas? Thanks.
1. 0 answers
2. asked by mary
3. 943 views
A braking system is used to prevent the car travellingfaster than 27 m s–1.The car and passengers shown in the diagram have a
1. 1 answer
2. asked by tania
3. 937 views
its possible to convert the commercial polymer into nano polymer and its affact any property of polymer
1. 0 answers
2. asked by pradee
3. 925 views
Solve using qaudractic formula.Then use a calculator to approximate to three decimal places, the solution as rational numbers.
1. 1 answer
2. asked by Lisa
3. 917 views
An enemy ship is on the east side of a mountain island, as shown in the figure. The enemy ship has maneuvered to within d1 =
1. 0 answers
2. asked by Anonymous
3. 912 views
unscramble olsi,iciznets,ntaryt,comdeyary,bleafs,tsrarciotas,coiglhary,siclalacs
1. 2 answers
2. asked by clarence
3. 902 views
During a workout, the football players ran up the stadium stairs in 59 s. The stairs are 140 m long and inclined at an angle of
1. 1 answer
2. asked by Johnathon
3. 901 views
Write the equation of the line satisfying the given condition. Perpendicular to x = 4 and passing through the point (7, 2)
1. 1 answer
2. asked by Trisha
3. 891 views
What is the resistance of a 2.5 m length of copper wire 1.3 mm in diameter?
1. 1 answer
2. asked by michelle
3. 886 views
A charity believes that when it puts out an appeal for charitable donations the donations it receives will normally distributed
1. 1 answer
2. asked by Probability
3. 884 views
one taxi cab company charges 75 cents for the first quarter mile and 15 cents for each additional quarter mile. the competing
1. 1 answer
2. asked by eva
3. 882 views
Solve by elimination method-thanks fro checking my work2x + 3y= 2 multiply this equation by 2= 4x + 6y = 4 4x-2y = -28 4x + 6y =
1. 4 answers
2. asked by Joella
3. 875 views
solve this equation by factoringa^2-8a=-15 the a^2 is a' squared
1. 2 answers
2. asked by mela
3. 869 views

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