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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. 5,209 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. 3,697 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. 3,399 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. 2,927 views
sin^4 x = (3-4cos 2x + cos4x)/8prove on one side please!
1. 4 answers
2. asked by Rachel
3. 2,400 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. 1,840 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. 1,706 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. 1,688 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. 1,622 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. 1,499 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. 1,421 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. 1,419 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. 1,360 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. 1,287 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. 1,269 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. 1,262 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. 1,243 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. 1,229 views
What will cool iron faster, water or motor oil?
1. 1 answer
2. asked by Anonymous
3. 1,227 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. 1,205 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. 1,170 views
how do you solve for x?2cos^24x-1=0
1. 5 answers
2. asked by Crystal
3. 1,125 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. 1,101 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. 1,066 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. 1,063 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. 1,060 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. 1,051 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. 1,050 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. 1,005 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. 973 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. 968 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. 966 views
factor1)n^2+8n+12 2)5a^2+11a+15
1. 2 answers
2. asked by wildy
3. 917 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. 912 views
____________ are distributed throughout the body, making up the monocyte-macrophage system or reticuloendothelial system.
1. 1 answer
2. asked by Cristina
3. 911 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. 899 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. 889 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. 872 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. 868 views
What is the process through which mid-ocean ridges (rifts) normally form?
1. 2 answers
2. asked by Angie
3. 855 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. 835 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. 816 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. 796 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. 780 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. 773 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. 757 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. 746 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. 736 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. 735 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. 719 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. 702 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. 701 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. 700 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. 695 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. 687 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. 672 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. 669 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. 669 views
What element is symbolized by X?
1. 3 answers
2. asked by Eric
3. 652 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. 631 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. 630 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. 622 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. 613 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. 611 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. 599 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. 596 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. 595 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. 589 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. 584 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. 578 views
rewrite the expression in terms to the first power of cossin^2xcos^4x
1. 1 answer
2. asked by trista
3. 575 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. 574 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. 565 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. 564 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. 559 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. 558 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. 555 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. 555 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. 549 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. 541 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. 540 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. 533 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. 527 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. 526 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. 525 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. 518 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. 513 views
How much is one third of a pound and a half?
1. 3 answers
2. asked by Rebecca
3. 511 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. 502 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. 493 views
How would damage to inter neurons in the spinal cord affect nervous system function?
1. 2 answers
2. asked by Jane
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. 490 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. 489 views
what is a domain? what is a range?
1. 1 answer
2. asked by olivia
3. 486 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. 486 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. 486 views
how big is the river load in the river tees?thanks
1. 1 answer
2. asked by kitty
3. 478 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. 476 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. 473 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. 467 views

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