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2012
March

Questions Asked on March 6, 2012

Write a formula that converts x hours to y seconds
1. 2 answers
2. asked by lanie
3. 1,820 views
prove sin(α+β)sin(α-β)=cos^2β-cos^2α
1. 1 answer
2. asked by K.T.
3. 406 views
A thin rod (length = 1.10 m) is oriented vertically, with its bottom end attached to the floor by means of a frictionless hinge.
1. 2 answers
2. asked by Angela
3. 1,262 views
A student opens a mathematics book to two facing pages. The product of the page number is 2352. Find the page numbers.The first
1. 7 answers
2. asked by Mary
3. 1,087 views
prove sin(α+β)sin(α-β)=cos^2β-cos^2αplease help... this is the only one I didn't understand out of all my homework...
1. 1 answer
2. asked by Katie
3. 857 views
I would like to learn more about having "undue confidence" by creating examples. I understand that this term is related to
1. 2 answers
2. asked by Alex L.
3. 1,130 views
A 5kg object is resting on top of a 30m building. How much energy does the object have?
1. 0 answers
2. asked by James
3. 397 views
A ship leaves port with a bearing of S 40 W. After traveling 7 miles, the ship turns 90 degrees on a bearing of N 50 W for 11
1. 1 answer
2. asked by Unkown
3. 2,603 views
On each flight, an airplane is filled with 10 quarts of oil. The airline adds an additional (1/2) quart of oil for each planned
1. 3 answers
2. asked by Anonymous
3. 561 views
now check this.THERE ONCE WAS A CLASS NAMED 210 THEY KEPT TALKING AND TALKING AGAIN MRS.BESDEN CAME INSIDE AND ALL THEIR EYES
1. 1 answer
2. asked by Celest
3. 907 views
could someone define and give an example of parenthetical citation
1. 0 answers
2. asked by JIM
3. 401 views
what are some of the benefits and dangers of police work?
1. 0 answers
2. asked by meshelle
3. 777 views
An algebra teacher drove past a farmyard that was full of chickens and pigs. The teacher happened to notice that there were a
1. 2 answers
2. asked by Amaris
3. 2,058 views
C2H4(g)+CO2(g)+H2O(g)interpret the equation in terms of relative numbers of moles,volumes of gas at STP,and masses of reactants
1. 1 answer
2. asked by la la
3. 1,410 views
Sentence with:Locomotive revolting caricaturist contraband
1. 2 answers
2. asked by Amanda
3. 496 views
A 40 ft ladder leans against a wall so the base of the ladder is 11 feet away from the base of the wall . What angle does the
1. 2 answers
2. asked by Tom
3. 767 views
Thank you very much! Just one more thing.Should I evaluate the following sentence a mistake? 1) The journalist asked where I was
1. 0 answers
2. asked by Henry
3. 535 views
prove sin(α+β)sin(α-β)=cos^2β-cos^2α
1. 0 answers
2. asked by Kathryn
3. 326 views
A ship leaves port with a bearing of S 40 W. After traveling 7 miles, the ship turns 90 degrees on a bearing of N 50 W for 11
1. 0 answers
2. asked by Kathryn
3. 666 views
a 1,400- to 1,750-word paper in which you describe the elements of the marketing mix (product, place, price, and promotion). Use
1. 1 answer
2. asked by nat
3. 566 views
Try hard to succeed.(What is the part of speech of 'to succeed'? Is 'to succeed' the object of the verb 'try'? Or is 'to
1. 1 answer
2. asked by rfvv
3. 534 views
Prove cos^2t+4cost+4/cost+2=2sect+1/sect
1. 0 answers
2. asked by Kathryn
3. 761 views
how long is a stage that is 6 meters wide with an area of 48 sq meters?
1. 1 answer
2. asked by dylan
3. 342 views
I left out a few last things I need to prepare. Thank you.1) Who is Caliban? How did Caliban behave towards Prospero when he
1. 0 answers
2. asked by Henry
3. 409 views
I Have to answer the game, "what's my rule" I've tried everything. I do not know if the teacher made a mistake in the problem.Wh
1. 1 answer
2. asked by Scott
3. 412 views
How do you show this as a unit rate 360 jars in 18 cases I'm in sixth grade and need help now!!!!!!!!!!
1. 5 answers
2. asked by Britnie
3. 401 views
david wants to buy a motorcycle for2500. He has no money in his savings. He gets a job where he earns $50 an hour. how many 8
1. 2 answers
2. asked by sam
3. 534 views
Q1:Prove cos^2t+4cost+4/cost+2=2sect+1/sect Q2: A ship leaves port with a bearing of S 40 W. After traveling 7 miles, the ship
1. 0 answers
2. asked by Katie
3. 689 views
A farmer decides to enclose a rectangular garden, using the side of a barn as one side of the rectangle. What is the maximum
1. 3 answers
2. asked by Mary
3. 1,629 views
A group of economics students gathered to study for a test on the money and banking system in the U.S. During a fast and furious
1. 0 answers
2. asked by Anonymous
3. 984 views
An electron in a cathode-ray-tube (CRT) accelerates from 20300 m/s to 3.99 × 106 m/s over 1.34 cm.How long does the electron
1. 1 answer
2. asked by anmol
3. 911 views
give exact and approximate solutions to three decimal places. x^2+5x-7=0
1. 1 answer
2. asked by Mary
3. 631 views
a board 2 yards long. If 6 inches from one end was cut off. How many inches long was the shelf.
1. 3 answers
2. asked by Betty
3. 453 views
The following system is at equilibrium with [N2O4] = 0.55 M and [NO2] = 0.25 M. If an additional 0.10 M NO2 is added to the
1. 3 answers
2. asked by Beth
3. 1,540 views
I have to revise these sentences as if speaking to a 10th grade level in education. Can you tell me if these are correct:1. We
1. 4 answers
2. asked by Sue
3. 1,832 views
Prove cos^2t+4cost+4/cost+2=2sect+1/sect
1. 0 answers
2. asked by Katie
3. 485 views
A ship leaves port with a bearing of S 40 W. After traveling 7 miles, the ship turns 90 degrees on a bearing of N 50 W for 11
1. 0 answers
2. asked by Katie
3. 552 views
Prove sin(α+β)sin(α-β)=cos^2β-cos^2α
1. 0 answers
2. asked by Katie
3. 367 views
Prove (3cosθ-4sinθ)^2+(4cosθ+3sinθ)^2=25
1. 1 answer
2. asked by Katie
3. 579 views
How can you precipitate BaCrO4(s) from a solution of barium nitrate and potassium dichromate? I don't get it.. it's a question
1. 2 answers
2. asked by Chem Student
3. 585 views
I'm in 5th grade and here's my question:I have to write which fraction represents the ratio of corresponding sides? There are 2
1. 4 answers
2. asked by Isabelle
3. 452 views
Do you believe in love at first sight? Romeo and Juliet evidently did. The play covers the time-span of only a few days. In this
1. 2 answers
2. asked by Teri
3. 762 views
what should i name my limerick?
1. 1 answer
2. asked by Celest
3. 327 views
factor monomial 64xcubic-27
1. 1 answer
2. asked by Sandra
3. 343 views
i need help on knowing that the cultural changes between Umayyad and Abbasid.pleaseee! thank you
1. 1 answer
2. asked by lauren
3. 402 views
A./_\B.\_/ C.|_| The three tanks shown above are filled with water to an equal depth. All the tanks have an equal height. Tank A
1. 5 answers
2. asked by Sasha
3. 1,351 views
a construction wo4rker uses a board and log as a lever to lift a heavy rock. If the input arm is 3 meters long and the output
1. 1 answer
2. asked by Kayleigh
3. 1,180 views
The sum of the lengths of the sides of triangle ABC is 38in. The length of sides AB and BC are 14 inches and 11 inches. Find the
1. 2 answers
2. asked by Elaina
3. 629 views
What values of x is there an absolute minimum for the function y= -1/3x^2 + 2x?I found the derivative of the function which is
1. 2 answers
2. asked by Jessica
3. 493 views
Mr lopez is putting a fence around his vegetable garden the garden is shaped like a rectangle. the larger sides are 14 feet
1. 2 answers
2. asked by luz
3. 1,137 views
Show that the equation x^4 + 4x + c = 0 has at most two real roots.I believe we're supposed to prove this by proof of
1. 0 answers
2. asked by Emily
3. 981 views
How fast must a spaceship travel to reachthe center of the Galaxy (26,000 ly away) in 100 years "ship time"?
1. 0 answers
2. asked by Linda
3. 390 views
i doing mobile (toy thing) for story sound of hollyhock. it have three string and each string be on different theme. one theme
1. 4 answers
2. asked by Mohammad
3. 936 views
Cytochrome, a complicated molecule that we will represent as CyFe2+, reacts with the air we breathe to supply energy required to
1. 3 answers
2. asked by Radhika
3. 1,554 views
Prove cos^2t+4cost+4/cost+2=2sect+1/sect
1. 0 answers
2. asked by Katie
3. 1,226 views
What are two ways the southeast and southwest cultural regions are similar and different?
1. 1 answer
2. asked by anoymous
3. 445 views
A ship leaves port with a bearing of S 40 W. After traveling 7 miles, the ship turns 90 degrees on a bearing of N 50 W for 11
1. 3 answers
2. asked by Katie
3. 736 views
Prove sin(α+β)sin(α-β)=cos^2β-cos^2α
1. 2 answers
2. asked by Katie
3. 452 views
What is theratio of the luminosity per aquare meter coming from a part of the Sun that is 5800 K versus a sunspot where the
1. 0 answers
2. asked by Linda
3. 415 views
A singly charged ion of unknown mass moves in a circle of radius 13.5 cm in a magnetic field of 2.9 T. The ion was accelerated
1. 2 answers
2. asked by Anonymous
3. 1,212 views
Did I answer this equilibrium question correctly?2CO(g) + O2(g) <-> 2CO2(g) 1) How will increasing the concentration of CO shift
1. 4 answers
2. asked by Tracy
3. 5,356 views
A singly charged positive ion has a mass of 3.20 10-26 kg. After being accelerated from rest through a potential difference of
1. 0 answers
2. asked by Anonymous
3. 692 views
I have an input / output machineI need a rule I can use for any value, like 10 or 100 input 1, output 3 input 2, output 6 input
1. 4 answers
2. asked by Andrea
3. 494 views
consider the following reaction:2CH3OH(g) yields 2CH4(g) + O2(g) change in enthalpy= 252.8kJ How many kilojoules of heat are
1. 2 answers
2. asked by Dylan
3. 3,346 views
Both the Puritans and William Penn viewed their colonies as “holy experiments.” HowDid they differ?
1. 1 answer
2. asked by ljessie
3. 780 views
A light ray in air is incident on a water surface at a 44° angle of incidence. Find each of the following angles.(b) the angle
1. 1 answer
2. asked by DCM
3. 1,214 views
a door was 6ft10in tall and 2ft 11in wid. estmate the area of one of the door
1. 1 answer
2. asked by leeann
3. 477 views
the value of ΔH° for the reaction of 2 C6H6 (l) + 15 O2 (g) = 12 CO2 + 6H20 is -6535 kJ. how many kJ of heat are released in
1. 0 answers
2. asked by Agnes
3. 761 views
the value of ΔH° for the reaction of 2 C6H6 (l) + 15 O2 (g) = 12 CO2 + 6H20 is -6535 kJ. how many kJ of heat are released in
1. 1 answer
2. asked by Agnes
3. 736 views
Determine the absolute extreme values of f(x)=4√x -2x on the interval [1,4]I found the derivative of f(x)=4√x -2x
1. 1 answer
2. asked by Jessica
3. 444 views
i need help here is the question. Leena bought 93 yards of wire. How many of wire did she buy
1. 1 answer
2. asked by jorge
3. 381 views
At 389K, this reaction has a Kc value of 0.0682. 2X(g) + 2Y(g) <-> Z(g) .. Calculate Kp at 389K. Kp=this is what I did.. can
1. 2 answers
2. asked by Tracy
3. 3,829 views
Mr. Smith built a fence around a piece of land he wons. The piece of land is 30 yards long and 12 yards wide. How may feet of
1. 1 answer
2. asked by Adam
3. 975 views
A name tag is 6.7 centimeters long. How many meters long is it
1. 1 answer
2. asked by jorge
3. 365 views
What two numbers when multiplied = -16 and when added = 10, also one number is negative the other is positive in this answer.
1. 1 answer
2. asked by Jquez
3. 363 views
Please help me unscramble the following letters pertaining to Irish.NLPCREEAH tHANK YOU fRANCES
1. 1 answer
2. asked by Frances
3. 793 views
Hank needs 3 quartes to play one video game each time. If he has 14 quarters, how many times can he play? Explain.
1. 6 answers
2. asked by consquela
3. 1,304 views
For A+2B <-> 2C and Kc = 2.13For 2C <-> D and Kc = 0.254 Calculate the value of equilibrium contant for the reaction D <-> A+2B
1. 2 answers
2. asked by Tracy
3. 1,345 views
A spotlight on a boat is y = 2.6 m above the water, and the light strikes the water at a point that is x = 8.6 m horizontally
1. 1 answer
2. asked by DCM
3. 994 views
Calculate the pH of a 5.90x10-3 M solution of H2SO4.
1. 1 answer
2. asked by Chris
3. 416 views
What better time to kiss the Blarney Stone than March! Help your readers plan a trip to Ireland by writing a travel article with
1. 3 answers
2. asked by Colton
3. 1,142 views
Calculate the [H+], [OH ‾ ], and the pH of 0.16 M solutions of:hydroxylamine (HONH2, Kb = 1.1 10-8)
1. 1 answer
2. asked by Chris
3. 1,017 views
Sunlight strikes a fused quartz surface. At what angle of incidence is the reflected light completely polarized?
1. 1 answer
2. asked by DCM
3. 547 views
who is bigger 0.03 or 0?
1. 1 answer
2. asked by Kylie
3. 316 views
Find the volume of the solid S that satisfies the two following conditions. First, the base of S is the elliptical region with
1. 0 answers
2. asked by Kara
3. 446 views
Using the 9 digits, 1, 2, 3, 4, 5, 6,7, 8 and 9 you can arrange four different digits to form a four-digit number that is NOT
1. 2 answers
2. asked by Please Please Help
3. 816 views
Find the volume formed by rotating the region enclosed by:x = 8 y and y3 = x with y ≥ 0 about the y-axis
1. 1 answer
2. asked by Cait
3. 2,409 views
Venietta read 4 books in 7 weeks. How many books did she read each week?
1. 2 answers
2. asked by consquela
3. 1,454 views
3 divided by 7 turned into a fraction and 4 divided by 9 turned into a fraction and 1 divided by 5 turned into a fraction
1. 1 answer
2. asked by consquela
3. 388 views
If you have a room that is 250 square inches and you are wanting to cover the floor using 5inx8in tiles how many tiles would it
1. 2 answers
2. asked by corena
3. 520 views
There are 10 marbles in a bag. 5 blue, 3 red and 2 green. If you draw 1 marble at random, What are the odds in favor of drawing
1. 3 answers
2. asked by Anonymous
3. 2,241 views
if initial pressure is 5 atm, initial volume is 6 liter what will be final pressure in atm when final volume is 10 lit?
1. 1 answer
2. asked by Anonymous
3. 389 views
Pilots can be tested for the stresses of flying high-speed jets in a whirling "human centrifuge," which takes 1.8 min to turn
1. 1 answer
2. asked by Ben
3. 4,344 views
I did a back titration with an unknown carbonate and using the average % carbonate (by mass) which I found to be 27.40% and
1. 3 answers
2. asked by Laura
3. 1,401 views
15x-5=1+12x
1. 1 answer
2. asked by hobo
3. 449 views
Use the following to answer the next three questions: the height, h, of a ball t seconds after it is released for a jump shot in
1. 0 answers
2. asked by alyssa
3. 463 views
Use the following to answer the next three questions: the height, h, of a ball t seconds after it is released for a jump shot in
1. 1 answer
2. asked by alyssa
3. 525 views
Lake Erie contains about 4.8 x 10^17 grams of fresh water. Assume that the lake has frozen solid and that the ice starts off at
1. 0 answers
2. asked by Tracy
3. 474 views
Which of the following statatements is correct?a. Thermos bottles keep food warm by combating heat loss through convection. b. A
1. 0 answers
2. asked by Tracy
3. 445 views
Which of the following statatements is correct?a. Thermos bottles keep food warm by combating heat loss through convection. b. A
1. 1 answer
2. asked by Tracy
3. 434 views

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