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Questions Asked on March 11, 2010

Find constants a,b and c such that the graph of f(x)=x^3+ax^2+bx+c will increase to the point (-3,18), decrease to the point
1. 4 answers
2. asked by Sarah
3. 5,269 views
Find the orbital speed of an ice cube in the rings of Saturn, if the mass of Saturn is 5.67 × 1026 kg and the ringshave an
1. 2 answers
2. asked by ne
3. 4,866 views
Given an unknown mixture consisting of two or more substances, explain how we could determine whether that mixture is a true
1. 5 answers
2. asked by Anonymous
3. 4,132 views
Which uppercase letters of the alphabet have rotational symmetry?
1. 8 answers
2. asked by Anonymous
3. 3,865 views
A box has a bottom with one edge 7 times as long as the other. If the box has no top and the volume is fixed at V, what
1. 4 answers
2. asked by Matt
3. 3,089 views
1)tan 5 degrees + tan 25 degrees / 1 tan 5 degrees tan 25 degrees =sqrt 3 / 3 Am I correct? 2) Complete the identity tan^2Q -
1. 3 answers
2. asked by Hannah
3. 3,036 views
"Colbalt-60 is a radioactive isotope used to treat cancers of the brain and other tissues. A gamma ray emitted by an atom of
1. 3 answers
2. asked by Stuck
3. 2,974 views
1. What pressure would be needed to compress 25.1 mL of hydrogen at 1.01 atm to 25% of its original volume?2. If the pressure on
1. 14 answers
2. asked by Teisha
3. 2,959 views
if family planned to spend $370 for food during March but spent only $348,this difference would be referred to as a:a)surplus
1. 3 answers
2. asked by vedrana
3. 2,935 views
What volume of 0.123 M K3PO4 is required to react with 60 mL of 0.862 M MgCl2 according to the equation2K3PO4+3MgCl2-->
1. 6 answers
2. asked by Steven
3. 2,630 views
How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas? What is the Limiting Reagent?
1. 2 answers
2. asked by Fred
3. 2,560 views
a bank charges $10 per month plus the following check fees for a commercial checking account:$.10 each for fewer than 20 checks
1. 3 answers
2. asked by josh
3. 2,498 views
What is the height of an equilateral triangle that has sides of length 1 cm?
1. 2 answers
2. asked by Sarah
3. 2,190 views
In stoichiometry, chemists are mainly concerned witha. types of bonds found in compounds b. energy changes occuring in chemical
1. 3 answers
2. asked by Ana
3. 2,134 views
A force FT is applied to a cord wrapped around a pulley with moment of inertia I = 0.435 kg·m2 and radius R0 = 33.0 cm. (See
1. 1 answer
2. asked by Anonymous
3. 2,078 views
If the coefficient of static friction between tires and pavement is 0.7, calculate the minimum torque that must be applied to
1. 1 answer
2. asked by Anonymous
3. 2,073 views
Identify the quantity that is calculated y dividing the molar mass of an element by Avogadro's number.I don't get this
1. 2 answers
2. asked by Astrid
3. 2,038 views
1. Which two elements react vigorously with each other?A: Chlorine and lithium B:Chlorine and potassium C:iodine and lithium
1. 1 answer
2. asked by Richard
3. 1,854 views
liquid heptane C7H16 is completely combusted to produce CO2 and H2O: C7H16 + 11O2 --> 7CO2 + 8H2Othe heat combustion for one
1. 1 answer
2. asked by hilde
3. 1,759 views
After solving a system of linear equations, how can you check your answer to determine whether it is correct? Demonstrate the
1. 2 answers
2. asked by earl
3. 1,740 views
Rosea drives her car 30 kilometers to the train station, where she boards a train to complete her trip. The total trip is 120
1. 3 answers
2. asked by Alonzo
3. 1,601 views
A skier of mass 76 kg is pulled up a slope by a motor-driven cable.(a) How much work is required to pull him 40 m up a 30°
1. 1 answer
2. asked by Kelsey
3. 1,484 views
Carbon Dating: Use the formula y= ae^-.00012t where a is the initial amount of carbon-14 , t is the number of years ago the
1. 4 answers
2. asked by Ana
3. 1,445 views
Suppose that the microwave radiation has a wavelength of 10.8 cm. How many photons are required to heat 225 mL of coffee from
1. 2 answers
2. asked by baubi
3. 1,432 views
what kind of conclusion does the writer use? what is the impact of that kind of conclusion in this essay? the essay is : the
1. 6 answers
2. asked by D-Man
3. 1,419 views
Write an equation of the line containing the given point and parellel to the given line.(2,-6); 9x-5y=4
1. 3 answers
2. asked by Liz
3. 1,390 views
use a commutative law to find an equivalent expression for 94 + xy
1. 2 answers
2. asked by bella
3. 1,365 views
Can you, writeacher, please tell me if the following statements are correct?1)The mirror spends its time looking at the opposite
1. 2 answers
2. asked by Franco
3. 1,344 views
Solve the problem.You traveled 189 miles on 7 gallons of gasoline. At this rate, how many gallons of gasoline would you need to
1. 1 answer
2. asked by pat
3. 1,334 views
1. What pressure would be needed to compress 25.1 mL of hydrogen at 1.01 atm to 25% of its original volume?2. If the pressure on
1. 1 answer
2. asked by Teisha
3. 1,325 views
What is the hydroxide ion concentration in a solution with [H3O-] = 7.67 x 10^-9M
1. 2 answers
2. asked by Anonymous
3. 1,291 views
I need to write a sentence using the words: fingernails,trees,when,fill,for,homework.The words HAVE to stay in th same order,and
1. 2 answers
2. asked by amy
3. 1,286 views
Ted put several different integers in order from least to greatest. He then put the same integers in order from greatest to
1. 7 answers
2. asked by Riley
3. 1,271 views
In the diagram, ABCDE is a regular pentagon with the measure of represented by 2x + 1. If the perimeter of the pentagon is 45,
1. 1 answer
2. asked by nini
3. 1,253 views
A force of 10 pounds stretches a spring 2 inches. Find the work done in stretching this spring 3 inches beyond its natural
1. 1 answer
2. asked by deb
3. 1,249 views
The CM of an empty 1300 kg car is 2.40 m behind the front of the car. How far from the front of the car will the CM be when two
1. 1 answer
2. asked by Anonymous
3. 1,235 views
There are 357 seniors in Harris High School. The ratio of boys to girlsis 7:10. How many boys are in the senior class?
1. 2 answers
2. asked by in need of help
3. 1,169 views
How many moles of water can be made from 4 moles of oxygen gas and 16 moles of hydrogen gas? What is the Limiting Reagent?
1. 1 answer
2. asked by Fred
3. 1,164 views
if the mean of a set of data is 23.00, and 12.60 has a z-score of -1.30, then what is the standard deviation?
1. 2 answers
2. asked by Anonymous
3. 1,150 views
Find cos(2x) if sin = 7/25 and x lies in quadrant 1My answer was 336/625 but this was wrong. I do not know how to figure this
1. 1 answer
2. asked by Hannah
3. 1,094 views
Solid carbon dioxide (dry ice) goes from solid to gas at -78C. The molar heat of sublimation is 25.3 kj/mol. In one experiment
1. 1 answer
2. asked by Kelly
3. 1,093 views
Two parallel transmission wires are laid between electrical towers.The distance between towers is 200 m, while the separation
1. 3 answers
2. asked by Stephanie
3. 1,072 views
in an experiment a sample of hydrocarbon was analyzed. The sample contained6 g of carbon and 1.344 g Hydrogen.a) whats the
1. 2 answers
2. asked by hilde
3. 1,021 views
How would increasing the volume of the reaction vessel affect these equilibria. You don't have to tell me the answers, but can
1. 1 answer
2. asked by Sammy
3. 1,009 views
In ΔABC, AB is of the length of , and AC is of the length of . The perimeter of ΔABC is 24.(a) AB = ___units. (b) AC =
1. 1 answer
2. asked by nini
3. 983 views
The volume of a rectangular prism is 2x^3+5x^2+x-2. The height of the prism is 2x-1, and the length of the prism is x+2. Find
1. 1 answer
2. asked by kev
3. 960 views
Now assume that the pitcher throws a 0.145 kg baseball parallel to the ground with a speed of 32 m/s in the +x direction. The
1. 1 answer
2. asked by Anonymous
3. 935 views
double indicator titration of phosphoric acid with sodium hydroxide
1. 2 answers
2. asked by Anonymous
3. 917 views
what is a good thesis statement for jim crow laws?
1. 3 answers
2. asked by tanisha
3. 916 views
Approximate the equation's solutions in the interval (0,2pi)sin2x sinx = cosx 2cos(x) (1/2-sin^2x) = 0 Then I got 3pi/2, pi/2,
1. 2 answers
2. asked by Abbey
3. 915 views
You conduct a survey of a sample of 25 members of this year’s graduating marketing students and find that the average GPA is
1. 0 answers
2. asked by joi
3. 901 views
point c (2,1) is the midpoint of line segment ab. Find the coordinates of points a and b if they are both on axes. explain and
1. 1 answer
2. asked by john
3. 895 views
Question about titration calculations in analysis of antacids lab. We did a lab yesterday with antacids, HCl and NaOH and I'm
1. 2 answers
2. asked by Mindy
3. 870 views
On a shared folder, Read permission allows a user to display folder names, filenames, file data, and attributes; run program
1. 0 answers
2. asked by josh
3. 861 views
Can you writeacher tell me if the following statements are correct. I know they are not dictionary definition but I would like
1. 2 answers
2. asked by Franco
3. 856 views
A helium balloon and its gondola, of mass M, are in the air and stationary with respect to the ground. A passenger, of mass m,
1. 0 answers
2. asked by Anonymous
3. 852 views
This was one of my few questions that i was struggling with.A) Describe the growth of North American slavery from 1619 to 1789.
1. 1 answer
2. asked by Michael
3. 844 views
need answer to the following: for each molecular compounds, write the name corresponding name or write chemical formula to:A)nit
1. 2 answers
2. asked by gina
3. 816 views
One reason early childhood education centers have become increasingly important providers of health education is thatA.schools
1. 4 answers
2. asked by Barb
3. 812 views
peter bought a bag of candy. He gave away ten percent of the candy too his wife and the gave three pieces to meg. he gave one
1. 1 answer
2. asked by jake
3. 796 views
A 12100 kg railroad car travels alone on a level frictionless track with a constant speed of 20.5 m/s. A 5850 kg load, initially
1. 3 answers
2. asked by Anonymous
3. 792 views
Katie is finding the standard form of the equations y = x2 + 6x + 4. What mistake did she make in her work? Show the correct
1. 2 answers
2. asked by rattler
3. 779 views
Two balls, of masses = .029 kg and = .06 kg, are suspended. The lighter ball is pulled away to a 60 degree angle with the
1. 2 answers
2. asked by Anonymous
3. 757 views
A box has a bottom with one edge 7 times as long as the other. If the box has no top and the volume is fixed at V, what
1. 1 answer
2. asked by Matt
3. 754 views
Teachers do need to establish ground rules about discussion: students should learn to listen politely to each other, and to
1. 7 answers
2. asked by scooby
3. 751 views
Assume you are performing the calibration step of Experiment 8 and you begin with 50 g of water at 20 oC and 50 g of water at 80
1. 1 answer
2. asked by allie
3. 740 views
The accounting department at Weston Materials, Inc., a national manufacturer of unattached garages, reports that is takes two
1. 1 answer
2. asked by Jade
3. 730 views
what would happen if there were no decomposers in an ecosystem?
1. 4 answers
2. asked by priscilla Perez
3. 728 views
A security analyst specializing in the stocks of the motion picture industry the relation between the number of movie theater
1. 0 answers
2. asked by Anne
3. 723 views
"Two children who are fighting over a toy pull on it from opposite sides. The result is a stand-off. Explain this in terms of
1. 1 answer
2. asked by Lena
3. 722 views
Find the perimeter and area of a square with diagonal length of 20cm.. Leave your answer in simplest radical form
1. 2 answers
2. asked by Laverne
3. 701 views
Show that the equationlog y = 1.54 - .008x - .658 log x is equivalent to y = 34.7 (1.0186)^(-x) * x^(-.658)
1. 1 answer
2. asked by Alex
3. 696 views
A rocket of total mass 2580 kg is traveling in outer space with a velocity of 111 m/s. To alter its course by 32.0 degrees, its
1. 3 answers
2. asked by peyton
3. 696 views
What is the direction of the net magnetic field at the point?I'll describe the figure here: Imagine a cartesian plane. At (0,y)
1. 2 answers
2. asked by anony mouse
3. 694 views
a 2400-lb (=10.7-kn)car traveling at 30 mi/h (=13.4m/s)attempts to round an unbanked curve with a radius of 200ft (=61.0m).(a)
1. 1 answer
2. asked by Anonymous
3. 677 views
Need help with these---14. Which of the following is present in an insect but not in arachnids? a. mandibles b. compound eyes c.
1. 1 answer
2. asked by mysterychicken
3. 676 views
Hi I need help figuring out these to word problems.Tom has created a scale drawing of his property for use in designing a
1. 5 answers
2. asked by Jennifer
3. 670 views
Explain how you would convert from number of atoms of a specific element to its mass??
1. 1 answer
2. asked by Jeaninne
3. 657 views
Suppose you want a mixture that contains 2.5 grams of iron ion and three times as many moles of oxalate ion as moles of iron. If
1. 2 answers
2. asked by Tiffany
3. 655 views
For the reaction:Mg + 2 HCl => MgCl2 + H2 a) How many grams of HCl are required to react with 62.0 g of Mg?
1. 1 answer
2. asked by Stacie
3. 644 views
How many grams of iron ion are in 11 grams of K3Fe(C2O4)3?
1. 1 answer
2. asked by Tiffany
3. 639 views
Find the perimeter and area of an equilateral triangle with a height of 24in.
1. 1 answer
2. asked by Anonymous
3. 630 views
In hypothesis testing, why are verbal problem statements converted to numerical problem statements?Why is it important to
1. 2 answers
2. asked by pebbles
3. 629 views
I have a questions that I have answered If some one could just check it Thanks.Neuron development and elaboration, which occurs
1. 2 answers
2. asked by Barb
3. 629 views
A graphics designer wants to use a star-shaped polygonwith 10 points and a point angle of 12 degrees. What should be the dent
1. 1 answer
2. asked by meghan
3. 628 views
Lydia Rise us building a terraium and needs to buy two sizes of gravel and soil to go in the bottom. The terraiun is 24 in
1. 3 answers
2. asked by Hobo
3. 626 views
Your department’s accounting software is extremely outdated and you have included the purchase of new software in this
1. 1 answer
2. asked by jmama
3. 619 views
provide examples of successful practices of pnonics for English Language Learners and building language development toward
1. 2 answers
2. asked by Anonymous
3. 604 views
A sample of anthracite has a moisture content of 5% when mined and an energy density of 35 kJg-1 when completely dried.Assuming
1. 1 answer
2. asked by k
3. 596 views
The OfficeJet printer can copy Maria's dissertation in 18 min. The LaserJet printer can copy the same documents in 14 min. If
1. 1 answer
2. asked by kathy
3. 595 views
I have to do an assignment for Daytona Beach and I just mentioned why one would want to visit the city.Now, my teacher said,
1. 3 answers
2. asked by AL 87
3. 595 views
a line has the equation 2x + 5y = 7. another line passes through (3,6) and (k,9). what value for "k" will make the lines
1. 1 answer
2. asked by Katherine
3. 592 views
write a program that asks for the starting time and minutes of the call, and displays the charges. the program should ask for
1. 0 answers
2. asked by josh
3. 590 views
If cos^2 theta -6 sin 2 theta =0, one value of theta is a)0 degrees b) 90 degrees c)180 degrees or D)255 degrees.Please show me
1. 1 answer
2. asked by Ray
3. 583 views
if peter has 60 basball cards in his collection how many baseball football and basketball cards does he have?my answer was-20
1. 1 answer
2. asked by 3mmi3
3. 580 views
Explain how having a negative self-schema affects one’s social interactions. How does social intelligence affect one’s
1. 2 answers
2. asked by shelly
3. 574 views
Solve using the elimination method. Show your work. If the system has no solution or an infinite number of solutions, state
1. 1 answer
2. asked by Kim
3. 571 views
In 1920, the record for a certain race was 46.6 sec. In 1980, it was 45.4 sec. Let R(t)= the record in the race and t = the
1. 1 answer
2. asked by Liz
3. 570 views
check if they are right1. red hots and candy corn (is,are)johns favorite candy. (is) 2. neither Alex nor the rest of the group
1. 4 answers
2. asked by Sara
3. 563 views
On three consecutive passes, a football team gains 6 yards, loses 36 yards, and gains 16 yards.What number represents the total
1. 1 answer
2. asked by Ed
3. 561 views

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