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2009
February

Questions Asked on February 24, 2009

the social convenor has 12 volunteers to work at a school dance. Each dance requires 2 volunteers at the door, 4 volunteers on
1. 3 answers
2. asked by joanna
3. 5,200 views
a car traveling at 30.0m/s undergoes a constant negative accerleration of magnitude of 2.00m/s^2 when the brakes are applied.
1. 3 answers
2. asked by nay
3. 3,690 views
Some very effective rocket fuels are composed of lightweight liquids. The fuel composed of dimethylhydrazine (CH3)2N2H2 mixed
1. 2 answers
2. asked by Samantha
3. 3,393 views
A metal shpere with ane excess of 11 electrons touches an identical metal sphere with an excess of 15 electrons. After the
1. 8 answers
2. asked by Anonymous
3. 2,912 views
sin^4 x = (3-4cos 2x + cos4x)/8prove on one side please!
1. 4 answers
2. asked by Rachel
3. 2,391 views
Posted by hayden on Monday, February 23, 2009 at 4:05pm.sin^6 x + cos^6 x=1 - (3/4)sin^2 2x work on one side only! Responses
1. 2 answers
2. asked by hayden
3. 1,824 views
Sharon was palying darts. She threw six darts and all of them hit the target. Which of the following could be her score?The
1. 2 answers
2. asked by Bart
3. 1,690 views
what does que bueno mean in english? *there is and accent over the "e" in que. i just cant figure out how to get it on there =]*
1. 1 answer
2. asked by marcie
3. 1,682 views
A light spring with force constant 3.85 N/m is compressed by 5.00 cm as it is held between a 0.250 kg block on the left and a
1. 1 answer
2. asked by Jessi
3. 1,613 views
The element copper, found in nature with an average atomic mass of 63.54u, consists of two isotopes, copper-63 of atomic mass
1. 3 answers
2. asked by Laila
3. 1,473 views
A aqueous solution of acetic acid with a density of 1.25 g/ml is 30.0% by mass HC2h3O2 (MM=60.0) Compute the molarity of this
1. 2 answers
2. asked by Aimee
3. 1,413 views
Ben sold 50 tickets to a basketball game.Adult tickets are $5 each and student tickets are $3 each. He collected $180 total. How
1. 4 answers
2. asked by Akhmed
3. 1,407 views
The area of the region bounded by the lines x=1 and y=0 and the curve y= x-e^x^2 is:A. 1-e units squared B. e-1 units squared C.
1. 0 answers
2. asked by Joe
3. 1,353 views
If you are given .060m. sugar (glucose-C6H12O6), .030m. AlCl3 and .025m. NaOH.How do you figur out lowest boiling point and
1. 1 answer
2. asked by Aimee
3. 1,269 views
A cylindrical tank of r=5 and h=9 is 2/3 filled with a liquid with density [rho]lb/ft^3. Find the Work required to pump liquid
1. 0 answers
2. asked by RuggedChild
3. 1,259 views
Sharon was playing darts. She threw six darts and all of them hit the target. Which of the following could be her score?The
1. 1 answer
2. asked by Bart
3. 1,252 views
Four different written driving tests are administered by the Motor Vehicle Department. One of these four tests is selected at
1. 3 answers
2. asked by James
3. 1,230 views
A plant whose reproductive parts produce nectar is also most likely toa produce sweet-tasting fruit. b have no parts that can
1. 1 answer
2. asked by Sarah
3. 1,224 views
What will cool iron faster, water or motor oil?
1. 1 answer
2. asked by Anonymous
3. 1,220 views
If y = u+ 2e^u and u = 1+lnx, find dy/dx when x= (1/e) ?
1. 1 answer
2. asked by Jeff
3. 1,190 views
What would some pro's and con's be for charging for air?What would some pro's and con's be for charging for water?
1. 1 answer
2. asked by Monica
3. 1,166 views
how do you solve for x?2cos^24x-1=0
1. 5 answers
2. asked by Crystal
3. 1,115 views
You are interested in examining the metabolism of a new drug that has been developed in your company. Briefly describe how you
1. 0 answers
2. asked by Natasha
3. 1,095 views
Is this following sentence correct with grammar? If not how should it lookBy adding more options for the customers, the staff
1. 1 answer
2. asked by Monica
3. 1,062 views
8 sin²(3x) cos²(3x) = 2 [2 sin(3x) cos(3x)]²= 2 [sin(6x)]² = 2[1 - cos(12x)]/2 = 1 - cos(12x)
1. 1 answer
2. asked by Carry
3. 1,056 views
I need to find the surface area and volume of a right regular hexagonal prism. The height is 10cm and the sides of its base
1. 1 answer
2. asked by Justin
3. 1,052 views
What is the difference between an amino acid and a protein?How does this difference in structure affect biological function?
1. 1 answer
2. asked by Laura
3. 1,041 views
Which 3 x 3 matrix represents a reflection in the yz plane followed by inversion through the origin?
1. 1 answer
2. asked by Alice
3. 1,041 views
tan(X+30)tan(30-x)=2cos2x-1 / (2cos2x+1)i just did (tanx)(-tanx)=-sin^2x/cos^2x would that work?
1. 2 answers
2. asked by Carry
3. 996 views
If there is a price change of 30% and the quantity demanded decreases by 50%, then the elasticity of demand is _____.Is this
1. 1 answer
2. asked by John
3. 967 views
George has calculated that he can jump the gorge if the ramp is inclined to 45 degrees, and he attains a speed of 20 m/s. Will
1. 1 answer
2. asked by Lucy X
3. 959 views
please check this question:Jim and Huck both decide that their relationships with their friends and loved ones are more
1. 1 answer
2. asked by Bella
3. 956 views
factor1)n^2+8n+12 2)5a^2+11a+15
1. 2 answers
2. asked by wildy
3. 910 views
A current of 0.965 A is passed through 500 ml of 0.2 M solution of ZnSO4 for 10 min. The molarity of Zn 2+ after deposition of
1. 1 answer
2. asked by hriday
3. 907 views
____________ are distributed throughout the body, making up the monocyte-macrophage system or reticuloendothelial system.
1. 1 answer
2. asked by Cristina
3. 904 views
A potential energy function for a two-dimensional force is of the form U = 3 x2y - 6 x. Find the force that acts at the point
1. 1 answer
2. asked by Jessi
3. 894 views
A cone-shaped water reservoir is 20 ft. in diameter and 20 ft. deep. If the reservoir is filled to a depth of 10ft., then write
1. 1 answer
2. asked by RuggedChild
3. 877 views
What is the area of the region bounded by the lines x=1 and y=0 and the curve y= x(e^x^2)?A. 1-e units squared B. e-1 units
1. 1 answer
2. asked by Mike
3. 864 views
for what value of k does kx + 7y = 10 have a slope of 3? im really confused!!!
1. 2 answers
2. asked by Brandon
3. 858 views
What is the process through which mid-ocean ridges (rifts) normally form?
1. 2 answers
2. asked by Angie
3. 847 views
Question: the rate constant for the second order decomposition of NOBr(g) is .800 1 divided by MS at 10 degree's C. Suppose a
1. 0 answers
2. asked by Eliz
3. 827 views
What is the area of the region bounded by the lines x=1 and y=0 and the curve y= x-e^x^2?A. 1-e units squared B. e-1 units
1. 1 answer
2. asked by Timmy
3. 809 views
Find the slope of the line that goes through the given points. I think I figured out the answer but I would appreciate any
1. 0 answers
2. asked by Rachale
3. 788 views
How do you do this proof? "In circle O, line segment ABC and line segment ADE are secants. Prove that angle ADC is congruent to
1. 4 answers
2. asked by Tommy
3. 769 views
Which of the following contains the most mechanical energy?A 10 kg ball at the top of a hill 10 meters high A 5 kg ball rolling
1. 2 answers
2. asked by myschic
3. 762 views
I need help with this question for school tom."Tisha is five years older than John. Alex is three more than twice Johns age.
1. 2 answers
2. asked by Austin
3. 740 views
Compute the vapor pressure of water above a solution formed by dissolving 25.00 grams of magnesium sulfate, MgSO4 (MM=120.3) in
1. 1 answer
2. asked by Aimee
3. 737 views
four different written driving tests are administered by the MVD. on of these four tests is selected at random for each
1. 1 answer
2. asked by justin
3. 724 views
Lisof a strand of the base sequence of a strand of RNA made using the DNA pattern ATCCGTC.Can you please help me
1. 0 answers
2. asked by Gaby
3. 724 views
I wouldn't have thought this was a big deal but this paper is worth over half my semester grade so: In the essay there are 2
1. 3 answers
2. asked by Anonymous
3. 709 views
use the half angle formula to determine the exact values of sin, cos, and tan of the angle.pie/8 and pie/12
1. 3 answers
2. asked by trista
3. 694 views
how would i graph log3x the 3 is subscripted?I remember that I had to make an X and Y chart and list the Domain and Range
1. 3 answers
2. asked by Chopsticks
3. 693 views
I don't know how to find generic rates and how to find rate of production?Example: 2HgCl2+ C2O4 goes to 2Cl + 2CO2 + Hg2Cl2
1. 0 answers
2. asked by eliz
3. 692 views
I am a 5th grade student and my group has to research this question. I have to turn it in tomorrow and was given the assignment
1. 3 answers
2. asked by Ezra
3. 688 views
Deduce the electric field strenght at a point midway between charges of 7.2*10^-6 C and -3.4*10^-6 C that are 2.0m apart from
1. 5 answers
2. asked by Anonymous
3. 677 views
Alpha Corporation in Boston offers a job to Carol, who lives in Des Moines, Iowa. Carol orally agrees with Alpha to work in
1. 1 answer
2. asked by Carol
3. 663 views
Compute the vapor pressure of water above a solution formed by dissolving 25.00 grams of magnesium sulfate, MgSO4 (MM=120.3) in
1. 1 answer
2. asked by Eliz
3. 662 views
How can we complete the sentence begin with the match.It seems that the match is postponed. The
1. 3 answers
2. asked by ramesh reddy
3. 655 views
What element is symbolized by X?
1. 3 answers
2. asked by Eric
3. 645 views
kHow do you find the number of protons, electrons, and the charge of N^-1? What makes this different from just finding N? Thanks
1. 3 answers
2. asked by Luna
3. 617 views
our different written driving tests are administered by the MVD. one of these four tests is selected at random for each
1. 1 answer
2. asked by Shaniqua
3. 617 views
ana finds 11 shirts in his size at a clearence sale. How many different purchases could ana make?the answer is 2047, any idea
1. 2 answers
2. asked by joanna
3. 612 views
This is second part of my previous Essay please help ASAP and maybe some suggestionsSimilar to Gwen, Coral is depicted as a
1. 3 answers
2. asked by Andy
3. 603 views
Wheels on this type of vehicle can retracta. a bicycle b. a station wagon c. an airplane d. a sailboat I feel like I should know
1. 5 answers
2. asked by Anonymous
3. 600 views
What is the area of the region bounded by the lines x=1 and y=0 and the curve y= x(e^x^2)?A. 1-e units squared B. e-1 units
1. 0 answers
2. asked by Jimmy
3. 590 views
Evaluate using u-substitution:Integral of: 4x(tan(x^2))dx Integral of: (1/(sqrt(x)*x^(sqrt(x))))dx Integral of: (cos(lnx)/x)dx
1. 2 answers
2. asked by RuggedChild
3. 589 views
Solve by graphing. Check your solution.y > 2 y > -x + 2 Am I supposed to graph this one on a line or on an actual graph? Thank
1. 1 answer
2. asked by Zoey
3. 584 views
okay so we did a lab on muscle physiology. acquired one small 2 cm length of psoas muscle . teased the bundle of muscle fibers
1. 0 answers
2. asked by Natash
3. 578 views
To calculate the charge for a load of bricks, including delivery, they use this equationc = 0.42b + 25 where c is the charge per
1. 1 answer
2. asked by Brandon
3. 575 views
could u please help me put this into my own words??This sector is often divided into light industry and heavy industry. Many of
1. 2 answers
2. asked by beecca
3. 570 views
rewrite the expression in terms to the first power of cossin^2xcos^4x
1. 1 answer
2. asked by trista
3. 568 views
My social studies teacher is going over the history of baseball for a fun lesson. The question is Who was the person that
1. 3 answers
2. asked by Monay
3. 567 views
can someone help me find out whatCH3OCH2CH2CH3 is and what it does. Is it an alkane aldehyde or etc. thanks
1. 5 answers
2. asked by debra
3. 559 views
How do you use RECIPROCALS to solve equations without variables. I do not want the answer to the equation. I want the steps to
1. 2 answers
2. asked by Lallie
3. 553 views
1.find the value of X. Simply answers that are radicals. hypotenuse is 10 sides (legs) are 6 and x. the total base is 12.2. Find
1. 1 answer
2. asked by maria
3. 551 views
Hi,I am having trouble figuring out the below question. Can someone please provide some guidance. Thanks!
1. 0 answers
2. asked by Leslie
3. 550 views
what is tim horton's market share of the industry, number of customers, number of outlets in north america and world wide.Wikipe
1. 1 answer
2. asked by Anonymous
3. 547 views
a. crossing-overb. plasmogamy c. mitosis d. karyogamy e. binary fission I know that is is not (a). Can you help me narrow it
1. 3 answers
2. asked by Gail
3. 546 views
How do you find rate of production of Cl? If you are given the inital rate to be 3.54e-5 and given measured data of .052[HgCl2]
1. 0 answers
2. asked by Eliz
3. 537 views
What kind of calculator do you need for the AMC 10/12? I have a TI-89, is that okay?Thanks!
1. 1 answer
2. asked by Momo
3. 535 views
Can someone help me with this:Descibe how to construct a histogram for a set of data and Describe how to construct a box plot
1. 1 answer
2. asked by Jack
3. 534 views
Impersonating another person on this board results in you being banned from posting here -- for at least two days -- and maybe
1. 0 answers
2. asked by Ms. Sue
3. 530 views
Hi!I have a Geometry worksheet I need to get done for tomorrow. It's a really easy thing, I guess...but I'm a bit stuck. The
1. 1 answer
2. asked by mathdork
3. 520 views
i have to write a fictional essay focused on character motivationthis is my plot:You meet someone who looks very jovial and
1. 1 answer
2. asked by Bella
3. 520 views
I am supposed to name the following symbol: 30 (subscript) 67 (exponent, but on the left side) Zinc. How would I name this?
1. 1 answer
2. asked by Luna
3. 515 views
How does voting, writing mails/emails, going on a talk show, speak in a radio show, join political parties, join protest groups,
1. 2 answers
2. asked by Anonymous
3. 509 views
How much is one third of a pound and a half?
1. 3 answers
2. asked by Rebecca
3. 505 views
write a 350-7-- word response in which you choose two or three eastern philosophies and describe how they compare. take sides,
1. 1 answer
2. asked by lipgloss87
3. 504 views
An olympic athlete can run 110 yards in 10 seconds. How far in miles per hour can the athlete run?
1. 1 answer
2. asked by Schanee
3. 490 views
What is the significance of the river in "A Way You'll Never Be" by Ernest Hemingway?THANKS!
1. 1 answer
2. asked by anonymous
3. 484 views
Let f(x) = (lne^2x)/(x-1) for x>1. If g(x) is the inverse of f(x0, then g'(3) = ?A. 2 B. 1 C. o D. -1 or E. -2 if you can
1. 0 answers
2. asked by Tom
3. 483 views
what is a domain? what is a range?
1. 1 answer
2. asked by olivia
3. 480 views
How would damage to inter neurons in the spinal cord affect nervous system function?
1. 2 answers
2. asked by Jane
3. 480 views
Order the following events, giving the approximate dates in millions of years ago.a) first land plant b) flower c) alternation
1. 0 answers
2. asked by Anonymous
3. 479 views
What ought you to do for a pregnant woman who asks your help in getting to the hospital, according to your understanding of the
1. 1 answer
2. asked by Samantha
3. 479 views
French and Indian Wara synopsis of the position taken by the British Parliament?French and Indian War a synopsis of the position
1. 1 answer
2. asked by Jones
3. 477 views
how big is the river load in the river tees?thanks
1. 1 answer
2. asked by kitty
3. 470 views
Is the grammar in this sentence correct?The best way to increase sales and satisfy customers complaints, the menu should be
1. 2 answers
2. asked by Monica
3. 465 views
How do you solve these types of problems?1) 3 - n = 32 3m - 8n - 6 = 0 2) 2p - q = 8 1/3p + 1/4q = 3
1. 1 answer
2. asked by Joy
3. 464 views
Find the slope of the line that goes through the given points. I would apprecaite some feedback to this ?, but I think I have an
1. 4 answers
2. asked by Robert
3. 461 views

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