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2011
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Questions Asked on February 8, 2011

calculate the molarity of the solution- 0.56 mole of BaCl2 in 100.0mL of solution.
1. 2 answers
2. asked by brandy
3. 6,745 views
Let f be a twice-differentiable function such that f(2)=5 and f(5)=2. Let g be the function given by g(x)= f(f(x)).(a) Explain
1. 1 answer
2. asked by Leanna
3. 5,547 views
the sum of two times a number and 5 is 11? equation form.
1. 4 answers
2. asked by jay
3. 5,130 views
A firm has beginning inventory of 300 units at a cost of $11 each. Production during the period was 650 units at $12 each. If
1. 1 answer
2. asked by james
3. 4,203 views
ax/b + cx/d =esolve for variable x
1. 3 answers
2. asked by joseph
3. 4,044 views
A toy manufacturer needs a piece of plastic in the shape of a right triangle with the longer leg 5cm more than the shorter leg
1. 1 answer
2. asked by Bethany
3. 3,807 views
Which of these relations on {0, 1, 2, 3} are equivalence relations? Justify the relation(s) that are not equivalent.R1: {(0,0),
1. 4 answers
2. asked by Laurey
3. 3,429 views
The management of Gibraltar Brokerage Services anticipates a capital expenditure of $27,000 in 3 yr for the purpose of
1. 1 answer
2. asked by Salvany
3. 3,236 views
The altitude upon the hypotenuse of a right triangle divides the hypotnuse into segments of 3 and 12. find the length of the
1. 3 answers
2. asked by Jorge
3. 3,073 views
3 H2 (g) + N2 (g) --> 2 NH3 (g)How many liters of ammonia gas can be produced from 10.0 L of N2 and 20.0 L of H2? Assume all
1. 3 answers
2. asked by James
3. 2,676 views
Sally's age is 12 years plus half her age. How old is she?Billy is twice as ld as Sally was when billy was as old as Sally is
1. 3 answers
2. asked by Anjanique
3. 2,634 views
Jessica wants to accumulate $14,000 by the end of 5 yr in a special bank account, which she had opened for this purpose. To
1. 2 answers
2. asked by Salvany
3. 2,484 views
Consider the following relations on R, the set of real numbersa. R1: x, y ∈ R if and only if x = y. b. R2: x, y ∈ R if and
1. 7 answers
2. asked by Laurey
3. 2,425 views
Fish-liver oil is a good source of Vitamin A. When 0.1232 g of fish liver oil is dissolved in 500. mL of solvent, an absorbance
1. 1 answer
2. asked by David
3. 2,396 views
How can you tell, using a microscope, that an onion cell has depth?
1. 2 answers
2. asked by Alexis
3. 2,327 views
mark knows that his yard is 2 1/4 times as long as it is wide. which equation shows the length, in feet, of the fence that goes
1. 7 answers
2. asked by Deven
3. 2,222 views
Rectangle ABCD has diagonals AC and BD. If the diagonal lengths are AC = 36 cm and BD = (3x + 3) cm, find the value of x
1. 2 answers
2. asked by Nelson
3. 2,217 views
Suppose that the heights of adult men in the United States are normally distributed with a mean of inches and a standard
1. 1 answer
2. asked by Demeisa
3. 2,067 views
2,874 to base five
1. 3 answers
2. asked by Meka
3. 2,008 views
Suppose payments were made at the end of each month into an ordinary annuity earning interest at the rate of 6%/year compounded
1. 1 answer
2. asked by Nicole E
3. 1,812 views
Write the reversible equation for the esterification and hydrolysis of glyceryl ethanoate
1. 1 answer
2. asked by Anne
3. 1,808 views
Explain how solving a linear inequality is similar to solving a linear equation.Explain how solving a linear inequality is
1. 1 answer
2. asked by Cindy
3. 1,718 views
If the solubility of a particular solute is (10 g/100 g H2O) at 20°C, what solution concentration would represent a
1. 2 answers
2. asked by ashley
3. 1,685 views
If you add 50 g of sylvite in 100 ml of water at 60 ° C, the resulting solution will she unsaturated, saturated or
1. 3 answers
2. asked by Kay
3. 1,684 views
standard enthalpies of formationH20(l) = -286 LiOH(s) = -487 standard enthalpies of solution for LiOH(s) to split into it's ions
1. 1 answer
2. asked by Gemma
3. 1,677 views
find the dimensions of the rectangle of maximum area that can be inscribed inside the ellipse (x/4)^2+(y/3)^2 = 1
1. 1 answer
2. asked by Laura
3. 1,668 views
What is the percentage composition of nitrogen in silver nitrate?
1. 1 answer
2. asked by twynna
3. 1,634 views
Two blocks connected by a string are on a horizontal frictionless surface. The blocks are connected to a hanging weight by means
1. 1 answer
2. asked by Anonymous
3. 1,627 views
If a saturated solution prepared by dissolving solid BaSO4 in water has [Ba2+]= 1.04*10^5M, what is the value of Ksp for BaSO4?
1. 2 answers
2. asked by Melissa
3. 1,596 views
Yuki made cookies on Monday. Some friends came over and ate half the cookies on Tuesday. On wednesday,Yuki ate three cookies,
1. 6 answers
2. asked by Miley
3. 1,546 views
I have to write an essay answering the following questions:What is the relationship between the study of geography and the study
1. 3 answers
2. asked by Alex
3. 1,534 views
A wire is run between two tips of two poles. One pole is 23 ft. taller than the other pole. The poles are 37 ft. apart. How long
1. 2 answers
2. asked by Mathy
3. 1,534 views
115 grams of KCl is dissolved in 750 ml of water. what are the molality, molarity, mole percent, % mass, ppm by mass. what would
1. 1 answer
2. asked by shaknocka lewis
3. 1,509 views
The formula A=bh is used to find the area of a parallelogram. If the base of a parallelogram is double and its height is
1. 1 answer
2. asked by Cindy
3. 1,472 views
In The Adventures of Huckleberry Finn, Huck struggles to decide what he should do when his heart and his conscience pull him in
1. 1 answer
2. asked by Carlie
3. 1,413 views
Starfax, Inc., manufactures a small part that is widely used in various electronic products such ashome computers. Operating
1. 0 answers
2. asked by Aaron
3. 1,390 views
Calculate the molar solubility of MgF2 in 0.08M MgCl2 at 25 degrees C.
1. 6 answers
2. asked by Melissa
3. 1,367 views
The Pirerras are planning to go to Europe 5 yr from now and have agreed to set aside $190/month for their trip. If they deposit
1. 0 answers
2. asked by amy
3. 1,347 views
The picture shows a uniform ramp between two buildings that allows formotion between the buildings due to strong winds. At its
1. 0 answers
2. asked by Kayla
3. 1,302 views
what mass of K2SO4 would you measure out to prepare 550 mL of a 0.76 M solution?
1. 2 answers
2. asked by becca
3. 1,298 views
please could someone help me with my enviro homework im stuck on this questionWhat the Green Revolution involved give 6 answers.
1. 1 answer
2. asked by davey
3. 1,291 views
Gold can be recovered from sea water by reacting the water with zinc, which is refined from zinc oxide. The zinc displaces the
1. 3 answers
2. asked by Jessica
3. 1,281 views
Train L and Train M leave a station at the same time heading in opposite directions. Train L is going north at an average speed
1. 3 answers
2. asked by derp
3. 1,273 views
I need help with week 9 capstone discussion question.What are the five most valuable classroom management concepts that build a
1. 1 answer
2. asked by Sam
3. 1,253 views
Today only, a desk is being sold at a 27% discount. The sale price is $219.00 .What was the price yesterday? Is it $300.00
1. 2 answers
2. asked by Lisa
3. 1,251 views
A student dissolves 18.9 grams of Zn(NO3)2 [molar mass = 189] in enough water to make 500.0 of solution. A 100.0 ml portion of
1. 0 answers
2. asked by Paul
3. 1,202 views
there are a group of ducks and goats there are 99 heads and legs among them there twice as many ducks than goats are many ducks
1. 2 answers
2. asked by Eddie
3. 1,196 views
if a scale on a map is 1 in. = 250 miles, what would be the map distance if the actual distance between two cities is 1,000
1. 4 answers
2. asked by linda
3. 1,192 views
Calculate the number of moles and atoms.A)64 gm of O2 B)58.9gm of CI C)90.5gm of (NH4)2SO4 D)243gm of Mg2 Please help i have NO
1. 1 answer
2. asked by twynna
3. 1,189 views
determine the amounts of solute and solvent needed to prepare the following solutions.2.0 M aqueous NaCl solution 1.0 m aqueous
1. 1 answer
2. asked by shaknocka lewis
3. 1,185 views
Is (0,2) a orderd pair a solution of 4x - 3y = 6? Explain.
1. 1 answer
2. asked by Liz
3. 1,162 views
consider the following reaction mechanism2A+B->B+C B+D->E+C What is the rate law for step 2 of this reaction?
1. 0 answers
2. asked by Candice
3. 1,159 views
Data in 1980 showed that about 48% of the adult population had never smoked cigarettes. In 2004, a national health survey
1. 1 answer
2. asked by Rosa
3. 1,151 views
a standardized test has a mean of 88 and a standard deviation of 12. What is the score at thr 90th percentile? Assume a normal
1. 1 answer
2. asked by cw
3. 1,148 views
A moving electron passes near the nucleus of a gold atom, which contains 79 protons and 118 neutrons. At a particular moment the
1. 2 answers
2. asked by anonymous
3. 1,109 views
Astronauts use a centrifuge to simulate the acceleration of a rocket launch. The centrifuge takes 40.0s to speed up from rest to
1. 0 answers
2. asked by Fred
3. 1,107 views
there is some unknown poet called M.T. Buckley whom seems to be known only to the the English teachers and himself. Wrote a poem
1. 2 answers
2. asked by janet
3. 1,092 views
if csc theta= -5/3 and theta has its terminal side in quadrant III, find the exact value of tan 2 theta.
1. 1 answer
2. asked by hannah
3. 1,082 views
Susan,A detective with the New Hampshire Police dept has been sent to the NYC police department to work with detectives and
1. 1 answer
2. asked by RaeAnne
3. 1,070 views
50-word response to the following:How do you know when an equation has an infinite number of solutions?
1. 0 answers
2. asked by kathy
3. 1,056 views
Find the slope of the tangent line to the graph of the given function at any point:1. f(x)= 13 I understand that you said the
1. 1 answer
2. asked by Anonymous
3. 1,055 views
115 grams of KCl is dissolved in 750 ml of water. what are the molality, molarity, mole percent, % mass, ppm by mass. what would
1. 4 answers
2. asked by shaknocka
3. 1,048 views
Why are there so many villi and air sacs?
1. 1 answer
2. asked by Erika
3. 1,046 views
A simple economy consists of two industries: agriculture and manifacturing. The production of 1 unit of agricultural products
1. 0 answers
2. asked by sam
3. 1,033 views
Find the values of x for which each function is continous:f(x) = x^3 -2x^2+x -1
1. 1 answer
2. asked by Anonymous
3. 1,032 views
Calculate the amount of Citric acid monohydrate needed to make 100 mL of 0.1 M solution
1. 1 answer
2. asked by Emily
3. 1,031 views
Explain the differences between solving these two equations:•log3(x - 1) = 4 AND log3(x - 1) = log34 I think it has to deal
1. 1 answer
2. asked by Andy
3. 1,004 views
determine the amount of solute needed to make 100ml aqueous solution of NaCl and MgCl2 that will cause a 10 degree change in
1. 1 answer
2. asked by shaknocka lewis
3. 993 views
Carmen received some money for her birthday on Friday. That night, she took her friend out to dinner. She spent half of her
1. 2 answers
2. asked by Jesse
3. 981 views
What is a mode? I need a quick review... I understand it, I just want to know better.
1. 2 answers
2. asked by Alex
3. 977 views
Find the periodic payment R required to amortize a loan of P dollars over t yr with interest charged at the rate of r%/year
1. 4 answers
2. asked by Nicole E
3. 961 views
why would it not be useful to just use pure ethanil or pure ethylene glycol as aN ANTIFREEZE SINCE THEIR NORMAL FREEZING POINTS
1. 2 answers
2. asked by shaknocka lewis
3. 949 views
A fireman stood in the middle of a step ladder. He climbed down 4 steps and continued his work. He went down 8 more then back up
1. 1 answer
2. asked by Lauren
3. 945 views
a 1500 kg car moving with a speed of 15 m/s collides with a utility pole and is brought to rest in 0.3 s.Find the average force
1. 0 answers
2. asked by Kriti
3. 936 views
Suppose you dissolve 40g of potassium nitrate in 100 cm3 of water at 100 C. If half the solution os poured out, how many grams
1. 1 answer
2. asked by Matthew
3. 935 views
Which of the following would not be an informative or positive message?a. Summary b. Claim adjustment C. Transmittal d. Direct
1. 1 answer
2. asked by erica
3. 931 views
Calculate the volume (in cc) of a 0.250 pound block of aluminum.
1. 1 answer
2. asked by Anonymous
3. 930 views
THe area of a trapezoid is 80 units. If its height is 8 units, find the length of its median?
1. 1 answer
2. asked by Malik
3. 930 views
ARBOC ARBEZWHEAT COFFEE WHEAT COFFEE 120 0 120 0 0 30 0 20 8. The terms of trade are 2 units of wheat per unit of coffee, Arboc
1. 1 answer
2. asked by Anonymous
3. 923 views
Were should I look for info on land and aquatic biomes, if all I want to know is the plats that grow there, and the animals that
1. 1 answer
2. asked by ELizabeth
3. 912 views
The earth travels in a nearly circular orbit about the sun. The mean distance of theearth from the sin is 1.5¡Á1011 m. What is
1. 2 answers
2. asked by shuzika
3. 898 views
The following is a list of 11 measurements: -2,82,87,-1,-51,-2,53,87,-20,32,35Suppose that these 11 measurements are
1. 1 answer
2. asked by Lisa
3. 889 views
verbs like venir and tener where only the yo-form is different, what are these verbs called and could someone list them. thanks
1. 1 answer
2. asked by Amy
3. 889 views
perseus the penguin can fly at a maxium speed of 150 km/hr when there is no wind. Perseus decides to make a trip from hershey to
1. 0 answers
2. asked by HELLO
3. 888 views
Can anyone help me out with the differences between electron geometry and molecular geometry for SCl6?I think the molecular
1. 0 answers
2. asked by Kate
3. 875 views
Let f(x) = [(2x2+4 x −70)/(x−5)]Show that f(x) has a removable discontinuity at x=5 and determine what value for f(5) would
1. 3 answers
2. asked by Aric
3. 873 views
i solved by factoring like this:3x^2+5x-12=0 (3x+4)(x-3) -4 +3 x=-4 x=3 now i need to solve by the form x^2=k How do I do that?
1. 2 answers
2. asked by keith
3. 868 views
Mrs. Reid brought 32 orange and apple slices to her daughter's soccer practice. There were three times as many orange slices as
1. 12 answers
2. asked by Jennifer
3. 829 views
Show that if a, b, c are in V3, then(a x b) dot [(bxc)x(cxa]) = [a dot (b x c)]^2 I don't know what properties to use
1. 0 answers
2. asked by Phil
3. 828 views
the enthalpy change of a system is 1.25 x 10^5 J and the entropy change is 300 J/K. calculate the free energy change of the
1. 1 answer
2. asked by blarkin
3. 821 views
How does the decription of a setting of a short story reflect or relate to the different conflicts occuring in the story?Can you
1. 5 answers
2. asked by ted
3. 820 views
The Johnsons have accumulated a nest egg of $19,000 that they intend to use as a down payment toward the purchase of a new
1. 1 answer
2. asked by amy
3. 819 views
What is the symbiotic relationship between scallops and sponges?
1. 3 answers
2. asked by Alicia Cunn
3. 819 views
A system gives off 196 kJ of heat to the surroundings and the surroundings do 4.20 x 10³ kJ of work on the system. What is the
1. 3 answers
2. asked by Anonymous
3. 818 views
A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below
1. 0 answers
2. asked by Megan
3. 816 views
a uranium-238 nucleus may stay in one piece for billions of years, but later it decays into an a particle of mass 6.64 x 10^-27
1. 1 answer
2. asked by Susmitha
3. 816 views
Explain how solving a linear inequality is similar to solving a linear equation.Explain how solving a linear is different from
1. 1 answer
2. asked by Cindy
3. 812 views
Consider the following relation on R1, the set of real numbersR1 = {(1,1), (1,2), (2,1), (2,2), (3,3), (4,4), (3,2), (2,3)}
1. 5 answers
2. asked by Laurey
3. 812 views
A block of mass 2.10 kg is pushed 2.33 m along a frictionless horizontal table by a constant 19.4 N force directed 27.5o below
1. 1 answer
2. asked by Megan
3. 802 views
A moving electron passes near the nucleus of a gold atom, which contains 79 protons and 118 neutrons. At a particular moment the
1. 1 answer
2. asked by anonymous
3. 794 views

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