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Questions Asked on January 26, 2011

Consider the curve given by x^2+4y^2=7+3xya) Show that dy/dx=(3y-2x)/(8y-3x) b) Show that there is a point P with x-coordinate 3
1. 3 answers
2. asked by Leanna
3. 9,802 views
Suppose 3 mols of neon (an ideal monatomic gas) at STP are compressed slowly and isothermally to 0.19 the original volume. The
1. 1 answer
2. asked by david
3. 5,712 views
A 0.025 kg golf ball moving at 27 m/s crashes through the window of a house in 5.0 10-4 s. After the crash, the ball continues
1. 2 answers
2. asked by jesse
3. 5,611 views
it is estimated that it 90 percent of an iceberg's volume is below the surface, while only 10 percent is visible above the
1. 1 answer
2. asked by AAAA
3. 4,110 views
An Adult male's heart pumps about 2.8 million liters of blood a year. If his heart beats 70 times a minute, how much blood does
1. 10 answers
2. asked by chad
3. 4,081 views
what number gives the same result when multiplied by 6 as it does when 6 is added to it?
1. 8 answers
2. asked by Joseph
3. 4,008 views
Find the equation of the quadratic function f whose graph is shown below.Ponts on the graph are (-3,-1)(-2,-4) f(x)=
1. 3 answers
2. asked by Rachal
3. 3,816 views
A brick is released with no initial speed from the roof of a building and strikes the ground in 1.50 {s}, encountering no
1. 2 answers
2. asked by mely
3. 3,592 views
Astronauts on our moon must function with an acceleration due to gravity of 0.170g .A. If an astronaut can throw a certain
1. 1 answer
2. asked by mely
3. 3,564 views
A manufacturer of light bulbs knows that 3% of the production of their 60W bulbs will be defective. What is the probability that
1. 1 answer
2. asked by Jeff
3. 3,280 views
A cannonball is fired horizontally from a 240 {m}-high cliff toward a vertical building 720 {m} away with an initial velocity of
1. 2 answers
2. asked by andrea
3. 2,680 views
only five days later, the child itch rash had almost completely disappearedwhich word is the simple subject in the sentence
1. 3 answers
2. asked by Anonymous
3. 2,579 views
A spider crawling across a table leaps onto a magazine blocking its path. The initial velocity of the spider is 0.860 m/s at an
1. 1 answer
2. asked by riasrocker
3. 2,409 views
What problems might arise from making the runner-up in the presidential election the vice president?
1. 7 answers
2. asked by Hannah
3. 2,341 views
A daring 510 { N} swimmer dives off a cliff with a running horizontal leap, as shown in the figure below.What must her minimum
1. 2 answers
2. asked by mely
3. 2,297 views
Before 1982 the US Mint cast penny coins from a copper and zinc mixture. If a 1980 penny weighs 3.051g and contains 0.153g zinc,
1. 4 answers
2. asked by Twynna
3. 2,187 views
greg exchanged 200 canadian dollars for 1/5 fewer u.s dollars. after spending 3/4 of the u.s dollars, how many did he have left?
1. 4 answers
2. asked by sydney
3. 2,178 views
verify:sin^3 x - cos^3 x = (sinx+cosx)(1-sinxcosx)
1. 1 answer
2. asked by Anonymous
3. 2,030 views
Suppose that future observations with a new telescope reveal a planet about 16 AU from a star whose mass is the same size as our
1. 2 answers
2. asked by Amy
3. 1,934 views
Write formulas for the following.1. potassium hexacyanoferrate(III) 2. sodium hexafluoroaluminate 3.
1. 1 answer
2. asked by Sharon
3. 1,927 views
A coffee manufacturer wants to market a new blend of coffee that will sell for $3.90 per pound by mixing two coffees that sell
1. 1 answer
2. asked by Megan Brown
3. 1,916 views
The numbers of hours of life of a torch battery is normally distributed with a mean of 150 hours and standard deviation of 12
1. 1 answer
2. asked by Anonymous
3. 1,916 views
A class has 12 students. In how many different ways can the students be put into lab groups consisting of 3 students in each
1. 2 answers
2. asked by KC
3. 1,856 views
Two planes leave an airport at the same time, one flying east, the other flying west.The eastbound plane travels 100 mph slower.
1. 5 answers
2. asked by PLEASE HELP!!!
3. 1,788 views
A student standing on the ground throws a ball straight up. The ball leaves the student's hand with a speed of 14.0 when the
1. 2 answers
2. asked by sam
3. 1,676 views
person weighs 526 N on Earth. Another planet has twice the mass of Earth and Twice the radius of Earth.Find the weight on the
1. 2 answers
2. asked by Sejul
3. 1,668 views
How to solve this??? The attendance at the game on two successive nights of Oakland A's baseball was 77,000. The attendance on
1. 3 answers
2. asked by Sean charles
3. 1,635 views
A typical sugar cube has an edge length of 1.0 cm. If you had a cubical box that contained 1.7 mol of sugar cubes, what would
1. 1 answer
2. asked by nick
3. 1,569 views
Nico is saving money for his college education. He invest some money at 8%, and $1300 less than that amount at 5%. the
1. 5 answers
2. asked by Tristan
3. 1,552 views
Which one of the following items would be most likely to have a list of chapter titles?A. A magazine B. A novel C. A newspaper
1. 5 answers
2. asked by shamso
3. 1,514 views
A 200-m-wide river flows due east at a uniform speed of 4.9 m/s. A boat with a speed of 9.0 m/s relative to the water leaves the
1. 2 answers
2. asked by jr
3. 1,513 views
fifteen out of 25 students in Mrs. Smith's class are boys. what is the ratio of boys to girls?i put 1 to 6. is that right?
1. 5 answers
2. asked by kamal
3. 1,470 views
A meterstick is held vertically above your hand, with the lower end between your thumb and first finger. On seeing the meter
1. 1 answer
2. asked by andrea
3. 1,457 views
Abiotic factors are living factors. (wind, temperature)Biotic factors are non-living factors. (sunlight, animals) Is this right,
1. 2 answers
2. asked by SsssSSSsssSSS
3. 1,425 views
What is the greatest amount of money you could leave for a tip if...1.no paper money is left 2.with the coins tat are left,
1. 5 answers
2. asked by joshua
3. 1,410 views
A child operating a radio-controlled model car on a dock accidentally steers it off the edge. The car's displacement 1.0 s after
1. 2 answers
2. asked by MS
3. 1,303 views
A baseball is pitched at 40 m/s. The batter hits the ball directly back at the pitcher at 50 m/s. What is the magnitude of the
1. 0 answers
2. asked by Nathan
3. 1,252 views
A car, having a mass of 1.2 x 10^3kg rounds a curve which is banked at an angle of 18 degrees to the horizontal. The radius of
1. 0 answers
2. asked by Anonymous
3. 1,245 views
When you proofread look for punctuation, spelling and Capitalization Mistakes.is this punctuated correctly?
1. 2 answers
2. asked by yelena
3. 1,235 views
6. Benford's Law claims that numbers chosen from very large data files tend to have "1" as the first nonzero digit
1. 1 answer
2. asked by Tab
3. 1,225 views
Now I am confused.What about these sentences? I am happy to say that everyone in my family felt good/well after eating my meal.
1. 2 answers
2. asked by Josh
3. 1,189 views
Find the area of the smaller segment whose chord is 8" long in a circle with an 8" radius.(3.14) A=( pie - / )inches^2 please
1. 1 answer
2. asked by yelena
3. 1,188 views
a plane is flying at an altitude of x with the distance at 800 meters with an angle of 70 degress. what equation would you use
1. 1 answer
2. asked by tom
3. 1,184 views
I have the answer and would love confirmation. VERY APPRECIATED!Find the LCM OF (1+2t), (1-4t^2), and (1-2t).
1. 2 answers
2. asked by AMY
3. 1,177 views
A 55.0-kg skydiver free falls for a period of time before opening his parachute. What is his kinetic energy when he reaches a
1. 2 answers
2. asked by ravyn
3. 1,174 views
The highest dive in the Olympic Games is from a 10-meter platform. The height "h" is in meters of a diver "t" seconds after
1. 2 answers
2. asked by Conder
3. 1,168 views
A right triangle has one angle that measures 16 degrees. What are the measures of the other two angles?
1. 2 answers
2. asked by David
3. 1,157 views
Write an equation of the line containing the given point paralled to the given line (-8,6);2x=3y+4Thank you
1. 9 answers
2. asked by Esther
3. 1,143 views
If Sally can paint a house in 4 hours, and John can paint the same house in 6 hour, how long will it take for both of them to
1. 4 answers
2. asked by Zac
3. 1,135 views
A 5.50 104 kg space probe is traveling at a speed of 11000 m/s through deep space. Retrorockets are fired along the line of
1. 0 answers
2. asked by maria
3. 1,134 views
Are the following sentences possible?Thank you very much. 1) He shot me in the leg. 2) He showed me the way to the supermarket.
1. 1 answer
2. asked by Franco
3. 1,131 views
In a triangle PQR, angle Q=50 degrees,PR=5CM, QR=4CM. find angle P?
1. 1 answer
2. asked by Melody
3. 1,126 views
Asthenosphere can act like a viscous liquid right?Is lithosphere part of the crust, or just part of the mantle? The core is the
1. 1 answer
2. asked by Anonymous
3. 1,124 views
A light ray of wavelength 610 nm is incidentat an angle θ on the top surface of a block of polystyrene surrounded by water.
1. 4 answers
2. asked by Sara
3. 1,113 views
Could you divide 14 shirts into two equal groups? why or why not
1. 7 answers
2. asked by mick
3. 1,111 views
A 55.0-kg skydiver free falls for a period of time before opening his parachute. What is his kinetic energy when he reaches a
1. 2 answers
2. asked by ravyn
3. 1,107 views
a naturalistic language-learning environmenta occurs mostly in the home b. is created whenever a child is communicating with
1. 1 answer
2. asked by Anonymous
3. 1,097 views
Suppose all of the apples have a mass of 0.10 kg. If one of the apples in the bowl (C) is 1.0 meter above the ground, what is
1. 0 answers
2. asked by ravyn
3. 1,094 views
Describe the reciprocal relationship between behavior and attitudes?
1. 1 answer
2. asked by Toni
3. 1,081 views
The density of an unknown metal is 8.94 g/cm^3 and its atomic radius is 0.126 nm. It has a face-centered cubic lattice.
1. 1 answer
2. asked by trey
3. 1,079 views
In a variant of the game Nim, two players alternate taking turns in removing 1, 2, or 3, beans from a pile. The object is to
1. 1 answer
2. asked by Diana
3. 1,072 views
If 57j of heat are added to an aluminum can with a mass of 17.1g, what is its temperature change?
1. 1 answer
2. asked by Anonymous
3. 1,070 views
A tennis player places a 54 kg ball machine on a frictionless surface. The machine fires a 0.057 kg tennis ball horizontally
1. 1 answer
2. asked by Anonymous
3. 1,064 views
The First Amendment does not guarantee absolute freedoms or rights Why?
1. 1 answer
2. asked by Britt
3. 1,062 views
A person throws a rock straight up into the air. At the moment it leaves the person's hand it is going 88 mph. When the rock
1. 2 answers
2. asked by corbin
3. 1,062 views
how many mL of watel should be added to yeild a soultion that has a concentration of .125 M when you start with a 250 mL
1. 0 answers
2. asked by nancy
3. 1,055 views
Remember that the perimeter of a rectangle can be found with the formula . Write an inequality that will give the possible
1. 1 answer
2. asked by Ty
3. 1,050 views
Freezing-point depression can be used to determine the molecular mass of a compound. Suppose that 1.28 g of an unknown molecule
1. 0 answers
2. asked by Rukky
3. 1,049 views
Two cars adjacent to each other on a highway. The first car accelerates uniformly at 3m/s2 the moment the light turns green. The
1. 1 answer
2. asked by Nathan
3. 1,048 views
Using the values given, calculate the amount of heat that is liberated when a 2.7-kg bucket of steam at 100.0°C is cooled to
1. 0 answers
2. asked by Rukky
3. 1,046 views
Mechanical energy is the difference between the kinetic and potential energies of an object true or false?
1. 1 answer
2. asked by ravyn
3. 1,039 views
A rock dropped from a small bridge encounters no air resistance and hits the pond below 1.0 s later.If it had been thrown
1. 2 answers
2. asked by mely
3. 1,035 views
how do you work out a radius and diameter don't know at all there is a circle with the number 5mm and they want me to tell them
1. 3 answers
2. asked by t.c
3. 1,029 views
A 7450 kg satellite has an elliptical orbit, as in Figure 6.9b. The point on the orbit that is farthest from the earth is called
1. 0 answers
2. asked by maria
3. 1,025 views
Find the x-intercept3x-5y=14y+9x I think y=0 but 3x=9x does not make sense to me. Please help me. Thank you.
1. 1 answer
2. asked by juan
3. 1,009 views
Kinetic energy is calculated from the formula KE = (1/2)mv2. Suppose a mass of 14.2 kg (m = 14.2 kg) is moving with a velocity
1. 1 answer
2. asked by Abby
3. 1,006 views
Type a short character sketch of a fictional Puritan named Justice Johnson based on what you have learned about the Puritans.
1. 1 answer
2. asked by NEEDhELP
3. 1,004 views
In Stephen Kings essay "Why We Crave Horror" what are some hasty generalizations, facalies, and use of logos?
1. 0 answers
2. asked by carrie
3. 1,002 views
You shoot a bullet at a tasty apple high up in a tree some feet in front of you, hoping to knock it loose so you can catch it
1. 3 answers
2. asked by mely
3. 1,000 views
3. Let X be a random variable representing the dividend yield of Australian bank stocks. We may assume that X has a normal
1. 0 answers
2. asked by Tab
3. 998 views
Nico is saving money for his college education. He invest some money at 8%, and $1300 less than that amount at 5%. the
1. 2 answers
2. asked by Tristan
3. 995 views
a paint color is made by mixing red and yellow paint. the ratio of red to yellow is 4 to 9. how many quarts of yellow paint must
1. 1 answer
2. asked by kamal
3. 985 views
At liftoff, a rocket has a mass of 2x10^6 kg. It expels hot gas which provides an upthrust of 3x10^7.Find the initial
1. 1 answer
2. asked by Joey
3. 983 views
5. Benford's Law claims that numbers chosen from very large data files tend to have "1" as the first nonzero digit
1. 0 answers
2. asked by Tab
3. 957 views
How to find the area of a KITE when the length of only one diagonal is given, with two pairs of congruent sides but with no
1. 0 answers
2. asked by robert
3. 955 views
is a neon light a fluid?
1. 1 answer
2. asked by Juliet
3. 950 views
The total number of DVD videos produced and shipped in 1998 was .5 million. In 2004,the total number of units reached 29.01
1. 0 answers
2. asked by Anonymous
3. 948 views
solve using substitution method3x-5y=61 3x-y=17
1. 1 answer
2. asked by Laura
3. 937 views
Complate the following chart. The first column shows the name of a research method used in psychology.In the second column,
1. 1 answer
2. asked by Nan
3. 927 views
A sand dune can travel up to 30 m per year. How far does the sand dune move per day?
1. 3 answers
2. asked by jacob
3. 927 views
I need to find k for the probability distribution:P(x)=k(x+2) for x=1,2,3 I tried subbing in the x-values, which gave me:
1. 1 answer
2. asked by Anonymous
3. 925 views
how do i factor thisy=x to the power of 2 -2x-5? thanks in advance!
1. 1 answer
2. asked by anonymas
3. 913 views
The Pacific Crest Trail runs from the Mexican border to the Canadian border through California, Oregon, and Washington,covering
1. 1 answer
2. asked by mely
3. 910 views
For the equation y = -6x, what is the slope and y intercept? The formula is y = mx + B. I know that m = the slope and B = the y
1. 2 answers
2. asked by Melanie
3. 895 views
You have a piggy bank containing a total of 85 coins in dimes and quarters. If the piggy bank contain $14.50, how many dimes are
1. 1 answer
2. asked by Megan Brown
3. 893 views
1.All of the balloons on the string (popped) except two.2.Do you (want) to buy those books? 3.Daniel's dog is (following) the
1. 0 answers
2. asked by Tracy
3. 890 views
how many pieces of ribbon each 4.5 cm long can be cut from alength of 4 and a half metres?
1. 3 answers
2. asked by elise
3. 890 views
how is water purified in the water cycle?why is the sun so important in the water cycle? what role does evaporation play in the
1. 2 answers
2. asked by Bri
3. 878 views
9. It is thought that prehistoric Indians did not take their best tools, pottery, and household items when they visited higher
1. 1 answer
2. asked by Tab
3. 877 views
Two sides of a triangle have the same length. The remaining side is one third as long as each of the other sides. If the
1. 2 answers
2. asked by Ann
3. 870 views

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