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2012
February

Questions Asked on February 18, 2012

Verify these answers~1. For what value(s) of x does f(x)=(x^2-16)^5 have a horizontal tangent? a) x=-4,4 b) x=-4,0,4 c) x=0 d)
1. 1 answer
2. asked by Jake
3. 1,127 views
Of 1735 people who came into a blood bank to give blood, 373 people had high blood pressure. Estimate the probability that the
1. 2 answers
2. asked by barbara
3. 2,037 views
Suppose a simple pendulum is used to measure the acceleration due to gravity at various points on the Earth. If g varies by
1. 3 answers
2. asked by janny
3. 998 views
The variable cp_arr has been declared as an array of 26 pointers to char. Allocate 26 character values, initialized to the
1. 2 answers
2. asked by Cheryl
3. 1,243 views
Describe the importance of quadratic equations to a basketball player, diver, or even a sniper. Give an example of a real-world
1. 3 answers
2. asked by Leo
3. 1,044 views
Hydrogen gas dissolves in palladium with the hydrogen molecules going into the spaces between the metal ions. Determine the
1. 1 answer
2. asked by James
3. 630 views
KI+H2SO4Write the balanced net ionic equation.
1. 1 answer
2. asked by Alex
3. 542 views
A baseball is thrown horizontally from a height of 12.00 m above the ground with a speed of 25.5 m/s. Where is the ball after
1. 0 answers
2. asked by jen
3. 361 views
Acetic acid is a polar molecule and can form hydrogen bonds with water molecules. Therefore, it has high solubility in water.
1. 2 answers
2. asked by James
3. 2,372 views
Look up the solubility of NaCl in both water and ethanol (in the CRC handbook of chemistry which i don't have access to, and any
1. 0 answers
2. asked by James
3. 495 views
An electron and a proton are each placed atrest in an electric ﬁeld of 363 N/C. What is the velocity of the electron 76.1 ns
1. 1 answer
2. asked by Mary
3. 951 views
Mr Dominguez is standing on a 40 ft ocean bluff near his home. He can see his two dogs on the beach below. If his line of sight
1. 1 answer
2. asked by shai
3. 1,459 views
On a cold winter day in February, many students in Ms. Bush's sixth-grade class had runny noses and sore throats. After
1. 4 answers
2. asked by sajid
3. 3,296 views
Two electrons exert a force of repulsion of0.96 N on each other. How far apart are they? The elemental charge is 1.602 × 10
1. 3 answers
2. asked by Jenny
3. 1,619 views
what do school board art teachers require to earn the job i am applying when i am older
1. 1 answer
2. asked by Anonymous
3. 394 views
If a specific class in a frequency distribution has class boundaries of 132.5 - 147.5 what are the class limits ?
1. 1 answer
2. asked by Kerrin
3. 1,720 views
What does pi equal??
1. 3 answers
2. asked by Anonymous
3. 269 views
Nitric oxide reacts with bromine gas at elevated temperatures according to the equation,2 NO(g) + Br2(g) = 2 NOBr(g) The
1. 3 answers
2. asked by Emile
3. 1,314 views
In a certain high school, the probability that a student drops out is 0.08, and the probability that a dropout gets a
1. 3 answers
2. asked by shan
3. 2,611 views
A reaction has a rate law, rate = kA]B]^2 What is the overall order of the reaction?a. 2 b. 3 c. 0 d. 1 e. 4
1. 1 answer
2. asked by steve
3. 518 views
For the reaction, 2 XO + O2 = 2 X02, some data obtained from measurement of the initial rate of reaction at varying
1. 1 answer
2. asked by steve
3. 734 views
so for theme of story of few notes for orpheus before i think that the title of story meant message for orpheus but i guess that
1. 9 answers
2. asked by Mohammad
3. 2,238 views
Given this data in a study on how the rate of a reaction was affected by the concentration of the reactantsInitial Rate, RUN #
1. 1 answer
2. asked by senior pup
3. 627 views
The quantity demanded x each month of Russo Espresso Makers is 250 when the unit price p is $170; the quantity demanded each
1. 0 answers
2. asked by Tre
3. 856 views
The units of a rate constant for zero, first and second order reactions are given in the textbook. If the time units are
1. 1 answer
2. asked by senior pup
3. 1,073 views
The decomposition of an aldehyde solution in carbon tetrachloride is a first order reaction with a rate constant of 1.20 x 10-3
1. 3 answers
2. asked by Dom
3. 709 views
How much energy in Joules is released from the complete combustion of one mole of glucose?
1. 1 answer
2. asked by stacy
3. 428 views
displacement vectors of 5km north, 3km east, 2km south, and 3km west combine to a total displacement of?3km north 13km west 0km
1. 7 answers
2. asked by Brandon
3. 6,528 views
For the reaction, A = B + C, the rate law is kA]. If it takes 80.0 seconds for 70.0% of a 10.0 gram sample of A to be
1. 1 answer
2. asked by Dom
3. 995 views
The half-life of a reaction was found to be inversely dependent on the concentration of the starting material. Thus, we can say
1. 2 answers
2. asked by elvis
3. 642 views
The initial concentration of a reactant in a first order reaction is 0.620 molar. What will be itsconcentration after 3
1. 1 answer
2. asked by elvis
3. 1,067 views
The reaction A + B + C = products has a rate law rate = kA]C]2. Which of the following will result in an increase in the rate
1. 4 answers
2. asked by elvis
3. 1,035 views
KI+H2SO4Write the balanced net ionic equation.
1. 1 answer
2. asked by Danny
3. 964 views
I cant find a diagram of synthesis lock and key that describes every step
1. 2 answers
2. asked by Queep
3. 365 views
Me and my grade 8 class are doing project on "data management". in one part it says:Statistical Measure of your choice: Research
1. 1 answer
2. asked by Alex Johnson
3. 829 views
If 80% of the applicants are able to pass a driver's proficiency road test, find the mean, variance, and standard deviation of
1. 0 answers
2. asked by Jayda
3. 417 views
How would I change the improper fraction 56/15 to mixed number in lowest terms?the problem is 2 2/3 x 1 2/5 Ive figured out how
1. 4 answers
2. asked by Faith
3. 672 views
Discuss, in detail, the role played by DNA and RNA in genetic diseases. What are the breakthroughs, if any, in the
1. 1 answer
2. asked by Jenn
3. 421 views
i understand you divide 56 by 15 but it comes out to 3.733333333 and i don't understand how to convert that into 3 11/15
1. 1 answer
2. asked by Faith
3. 337 views
I am having some difficulties with week four lab. The explanation for problem skips a step and I do not know how to get the
1. 2 answers
2. asked by Rick
3. 729 views
18.Which of the following statements implies rules of confidentality?A.You can tell the librarian that you heard that Joey's
1. 1 answer
2. asked by annie
3. 511 views
Jack and Jill got an equal number of marbles from their grandpa's collection. Jill gave 50 marbles to Jack because she saw that
1. 3 answers
2. asked by Ire
3. 1,047 views
How can eliminating abbreviationsreduce errors?
1. 1 answer
2. asked by Emmajean
3. 328 views
how do you find the derivative of f(x)=2x/(x^2+x+1)^1/2 HELP A.S.A.P.?
1. 1 answer
2. asked by Christina
3. 267 views
A 0.700-kg ball is on the end of a rope that is 0.90 m in length. The ball and rope are attached to a pole and the entire
1. 2 answers
2. asked by Angelina
3. 1,358 views
what s the good answers for the colors theory from 1-20 questions
1. 1 answer
2. asked by Anonymous
3. 900 views
A planet has two satellite moons. Moon X has an orbital period of 2.13 days. Moon Y has an orbital period of about 3.53 days.
1. 0 answers
2. asked by Angelina
3. 1,118 views
If 0.0142 M aqueous Cl- is produced stoichiometrically according to the balanced equation in a reaction solution with a total
1. 1 answer
2. asked by Jody
3. 1,160 views
Find an example of 2 by2 matrices with a12 = .5 for which:a. A^2 = I b. A^-1 = A^T c. A^2 = A By the way, a12 means the first
1. 1 answer
2. asked by fatih
3. 553 views
The rest stops the driver made are included in the calculations because that is the problem is defined. However, suppose the bus
1. 2 answers
2. asked by Angelica
3. 539 views
The forth and seveth terms of an A. P are 3 and 36. Find the A.P and its fifteenth term
1. 1 answer
2. asked by Anonymous
3. 331 views
An element x has 3 isotopes,a,b,c.a has 5% abundance b,20%,c,75% &a has a mas of 40,b 42,c 45.what is the essntial differnce in
1. 1 answer
2. asked by Luc
3. 401 views
True or false? Every random sample of the same size from a given population will produce exactly the same confidence interval
1. 2 answers
2. asked by jr
3. 1,252 views
Lorraine was in a hurry when she computed a confidence interval for μ. Because σ was not known, she used a Student's t
1. 1 answer
2. asked by jr
3. 4,373 views
solvesquare root of y+5-1=2
1. 1 answer
2. asked by Mary
3. 325 views
How will you apply what you learned in this Orientation Workshop to your educational, personal, or professional pursuits?Provide
1. 1 answer
2. asked by shay jones
3. 443 views
Who is credited with inventing the fluorescent light bulb? Some resources told me it was Nikola Tesla, yet others told me it was
1. 1 answer
2. asked by jtback
3. 411 views
In reverse osmosis, water flows out of a salt solution until the osmotic pressure of the solution equals the applied pressure.
1. 0 answers
2. asked by Melody
3. 697 views
If only the upper 30% of a normally distributed class passed a quiz for which the mean was 70 and the standard deviation was 10,
1. 2 answers
2. asked by Cody Morris
3. 1,258 views
1.25 mol of NOCl was placed in a 2.50 L reaction chamber at 427 celciciu degre . After equilibrium was reached, 1.1 mole of NOCl
1. 5 answers
2. asked by Abdela
3. 6,779 views
If f(x)=x-1/2x^2-x-3.Find(i)f(2) (ii)x if f(x)= 0
1. 1 answer
2. asked by chrystabelle
3. 334 views
If f(x) = x-1/2x^2 - x -3.Find(i)f(2) (ii) x if f(x)= 0 (iii)values of x that are not in the domain of the function
1. 1 answer
2. asked by chrystabelle
3. 382 views
Suppose K = {{2,3,4,5,6,7},{2,5,7,8,12},{1,2,3,5,7,9,13,20}}. Find three upper bounds for K in P(N) and three lower bounds. Does
1. 0 answers
2. asked by lala
3. 409 views
Ben has 1L of 0.1mol/dm3 solution of KI & wish to take a sample containing 8.3g of solute.What volume should he measure
1. 1 answer
2. asked by Luc
3. 975 views
Suppose K = {{2,3,4,5,6,7},{2,5,7,8,12},{1,2,3,5,7,9,13,20}}. Find three upper bounds for K in P(N) and three lower bounds. Does
1. 0 answers
2. asked by lala
3. 408 views
A ball is thrown with a speed of 100m/s attains a height of 150m.Calculate <a>the time of flight <b>the angle of projection</b>
1. 11 answers
2. asked by Nonso
3. 2,485 views
Is the rational-comprehensive model or the incremental model best used to describe policymaking in the United States? Provide
1. 1 answer
2. asked by unknown
3. 547 views
Every 5th customer gets $2 off coupon. Every 7th customer gets $5 coupon and every 15th customer get $20 coupon. Some get 2
1. 0 answers
2. asked by Ire
3. 781 views
What are 3 ways to solve system of linear equations in two variables?
1. 1 answer
2. asked by Anonymous
3. 1,123 views
0.0337g of a volatile liquid when vaporized completely at 100Pa and 300K occupied a volume of 20cm3. When this volume of vapor
1. 2 answers
2. asked by Shaun
3. 648 views
AX is the bisector of <BAC p is any point on AX. prove that the perpendicular drawn from Pto AB and AC are equal
1. 0 answers
2. asked by leon hydra
3. 332 views
1.IF Vector OA =2i + 3j – k, vectorOB = i – 2j + 3k determine the value of vectorS ,OA X OB
1. 0 answers
2. asked by chrystabelle
3. 511 views
Given that vector c and vector d are non zero vectors such that vector c =x1i + y1j + z1k and vector d =(y1z2-y2z1)+(x1y2
1. 0 answers
2. asked by victor m
3. 559 views
Can u help me plz.A compound producd 1200cm3 of N2 @ rtp.a) how many N2 molecules were in the sample & wat mas of N2 is producd
1. 1 answer
2. asked by Luc
3. 385 views
five thousand randomly selected MBA graduates were surveyed to determine their future plans. the survey rate was 10% .
1. 1 answer
2. asked by Tonya
3. 406 views
The business school Dean wants to determine if the future plans are significantly different for the three majors at a level of
1. 1 answer
2. asked by Tonya
3. 370 views
an automobile manufacture markets the same vehicle in Europe and the U.S.,base on a sample of 100 vehicles in each market, mena
1. 1 answer
2. asked by Tonya
3. 365 views
The Business School Dean wants to determine if the future plans are significantly different for the three majors at a level of
1. 1 answer
2. asked by Tonya
3. 450 views
given that (2 +3i)(3-4i)=x+yi,find x and y
1. 1 answer
2. asked by ceasar
3. 377 views
A satellite moves on a circular earth orbit that has a radius of 6.68E+6 m. A model airplane is flying on a 16.3 m guideline in
1. 2 answers
2. asked by Katie
3. 3,627 views
In a head on collision,a car stops in 0.18s from a speed of 29 m/s . The driver has a mass of 74 kg, and is, fortunately,
1. 1 answer
2. asked by Anonymous
3. 749 views
Evaluate cuberoot of z given that z =8(cos264degrees + isin264degrees)
1. 0 answers
2. asked by ceasar
3. 435 views
A car is traveling at a speed of 62 on a freeway.If its tires have diameter 24.0 and are rolling without sliding or slipping,
1. 7 answers
2. asked by bety
3. 660 views
what equation represents the relationship of perimeter of a square varies directly as the length of it's side ?
1. 2 answers
2. asked by tom
3. 1,132 views
Can someone help? Your make a scale drawing of a tree using the scale 5 in. =27 ft. If the tree is 67.5 ft tall, how tall is the
1. 3 answers
2. asked by myles
3. 3,288 views
I am having difficulties with the accounting problem belowRoland Andersson is the manager of the Ekland Division of Ystad
1. 1 answer
2. asked by Del
3. 490 views
i was just wondering if the limit of a funtion exists as it approches a value if both the right side limit and the left side
1. 2 answers
2. asked by Pria
3. 664 views
calculate the enthalpy change for the reaction n2h4(l) + 02(g) --> n2(g) + 2h20(l)
1. 1 answer
2. asked by elizabeth
3. 1,294 views
31kg.swimmer.runs.with.a.horizontal..velocity.of.4,0.m/s.off.a.boat.dock.and.lands.in.a.stationery.rubber.raft.of.mass.og.9kg..w
1. 0 answers
2. asked by sukie
3. 511 views
2^(3x+1)=2^)2/x) I don't know what to do here to get both of the xs
1. 0 answers
2. asked by Sabr
3. 291 views
2(10-2y)+y((3/7)/(9/10))=22
1. 1 answer
2. asked by monty
3. 299 views
The angular speed of digital video discs (DVDs) varies with whether the inner or outer part of the disc is being read. (CDs
1. 2 answers
2. asked by john
3. 1,161 views
What inspired Pablo Picasso to paint Weeping woman? Please give some historical context. Thanks
1. 1 answer
2. asked by john
3. 531 views
Calculate [OH-] and pH for the following strong base solution;a solution formed by mixing 10.0 mL of 0.011 M Ba(OH)2 with 28.0
1. 1 answer
2. asked by MARY
3. 569 views
2^(3x+1)=2^)2/x) I don't know what to do here to get both of the xs
1. 1 answer
2. asked by Jack
3. 331 views
Find the derivative of the function. Simplify and express the answer using only positive exponents only.y = (x - 4)^2 (x + 3)
1. 3 answers
2. asked by Carol
3. 1,238 views
Suppose that the revenue in dollars from the sale of x campers is given by the formula shown below.R(x) = 58,000x + 38,000(10 +
1. 2 answers
2. asked by Carol
3. 920 views
x P(x)-2 0.31 3 0.33 7 0.06 11 ? by using probability distribution , what is value of 11.plz help me
1. 1 answer
2. asked by shan
3. 419 views
i was just wondering if there was a difference between infinty and indetrminant. my freind said there the same thing. But i
1. 0 answers
2. asked by Pria
3. 457 views
calculate the water vapor pressure of benzene at 0.80, 0.60, 0,40, and 0.20 mole fraction and toluene at 0.20, 0.40, 0.60, and
1. 2 answers
2. asked by isabelle
3. 516 views

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