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  • Math help for half life, please?!?

    This problem is confusing to me just because it has a percentage in it and I don't understand how to go about it. If you could help by explaining the steps for me, it would be so much appreciated! Thanks so much!

    Radioactive Tenium is used in dating ancient items. Tenium has has a half - life of 1876 years. Assume that 21% of the original amount of Tenium remains in a particular specimum. How old is the specimum up to 1 decimal place?

    So since half life is 50%, would I subtract 21 from 50? I get 29. Would I multiply .29 and 1876, making me get 1331.96? Would the specimum be 1332 years old?

    3 AnswersMathematics8 years ago
  • Math help for half life?

    This problem is confusing to me just because it has a percentage in it and I don't understand how to go about it. If you could help by explaining the steps for me, it would be so much appreciated! Thanks so much!

    Radioactive Tenium is used in dating ancient items. Tenium has has a half - life of 1876 years. Assume that 21% of the original amount of Tenium remains in a particular specimum. How old is the specimum up to 1 decimal place?

    3 AnswersMathematics8 years ago
  • Please help on logarithm problem. Let 2+log(5x-2)=6?

    I'm drawing a blank on this problem. Can you please help me by explaining the steps to solve it? It would be so much appreciated! Thank you!

    Let 2+log(5x-2)=6. Find x(up to 1 decimal place)

    2 AnswersMathematics8 years ago
  • Help with my Neck PAIN?

    My neck has been hurting for about a week now. It looks a tad bit swollen and feels bruised. It hurts to move and laugh. It's not a crick because I know how that feels. When I barely touch it, it hurts.

    I'm guessing I also have a cold because I'm always so cold and do not feel well. I also get dizzy a lot.

    What's wrong with my neck? ):

    I just can't take this pain..

    Are their any home remedies?

    3 AnswersPain & Pain Management1 decade ago
  • Exact Values of Trig functions?

    T is a real number and P= (x,y) is the point on the unit circle that corresponds to t. Find the exact values of six trigonometric functions of t.

    (square root of 3/2, 1/2)

    I was able to find cos t, sin t, and cot t. How do I find tan t, csct, and sec t?

    is there an easy way to find all six with and without a calculator?

    2 AnswersHomework Help1 decade ago
  • Unit Circle trigonometry?

    if (x,y) is a point on the unit circle in quadrant IV and if x=square root of 3/2, what is y?

    How do you find y? Is there a formula?

    1 AnswerHomework Help1 decade ago
  • What is the best plan for AT&T Go Phones?

    I recently just bought an AT&T Pay As You Go Phone and a PrePaid Card so that I can text. But, I'm so confused.

    It's asking me to pick from the Unlimited Talk Option or The Simple Rate Option. All I want is to use my PrePaid card and text with it.

    Here is the information:

    Unlimted:You get unlimited calling to any wireless customer of AT&T and all other calls are just $0.10 per minute. For each day you use your phone on AT&T's wireless network, there's an additional $1.00 access charge.

    Simple Rate Option:Each minute costs just $0.25, whether it's during the day, night, or on the weekend.

    Which one is better?

    Please help!

    Thank you so much!

    3 AnswersCell Phones & Plans1 decade ago
  • Song help, please!!!?

    So, I went to Charlotte Russe today and there was this neat song.

    I can't remember how it went and what it said but it was something like,

    "climb the mountain.

    hold my hand.

    and don't let me fall. don't let me fall, don't let me fall"

    and it was a girl singing it.

    so if you know the song can you please give me the name and singer of it?

    Thank you so much!

    1 AnswerOther - Music1 decade ago
  • Homework Help pleasee? Geometry.?

    I've been working this problem all day after school and it's been hours and I still cannot get this right!

    Please help.

    The coordinates of the vertices of triangle ABC are A(1,4), B(-2,-1), and C (-3,-2).

    Find the perimeter of triangle ABC to the nearest tenth.

    &

    The coordinates of the vertices of triangle ABC are A(1,4), B(-2,-1), and C (-3,-2)

    The height H to side BC is the square root of 2, and B is the length of BC. Wht is the area of triangle ABC?

    Please help me, and if you can, please tell me how you did it.

    Thanks.

    3 AnswersMathematics1 decade ago
  • Geometry Homework Help Pleasee!!?

    Please help me with these two problems and if you can, can you tell or show me how to do it step-by-step?

    QS bisects angle PQR, angle PQR = x squared, and angle PQS = (2x+ 6 ). Find all the possible measures for angle PQR.

    The answer is 36 and 4 but I'm the type of person that wants to learn how to get this answer...

    and the second question is...

    Angle ABC is congruent to angle DBC. Angle ABC = (3x/2 + 4) and and DBC = ( 2x- 27 1/4 ). Is angle ABD a straight angle? Explain.

    1 AnswerHomework Help1 decade ago
  • Homework Help Please - Geometry?

    Wow...

    I've tried working this problem for a couple of hours and I still haven't got it yet!

    Please help me

    and tell me how you worked it out step-by-step if you can.

    Q is in the interior of right angle PRS. If m anglePRQ is 4 times as large as m angleQRS, what is m anglePRQ?

    4 AnswersMathematics1 decade ago
  • Highlights for black hair?

    Hi, I was wondering...

    I have black hair, light-medium skin tone, and brown eyes and well Asian.

    I want hightlights for my black hair & I kind of want to have red or gold highlights, but I don't know which one would look best.

    I don't want a crazy color like pink or whatever. I need something school appropriate.

    Any suggestions?

    Please, if you can, provide pictures.

    Here is a picture of me:

    http://viewmorepics.myspace.com/index.cfm?fuseacti...

    5 AnswersOther - Beauty & Style1 decade ago
  • Highlights for black hair?

    Hi, I was wondering...

    I have black hair, light-medium skin tone, and brown eyes.

    I want hightlights for my black hair & I kind of want to have red or gold highlights, but I don't know which one would look best.

    I don't want a crazy color like pink or whatever. I need something school appropriate.

    Any suggestions?

    Please, if you can, provide pictures.

    Thanks.

    9 AnswersHair1 decade ago
  • math omg plz help?

    g+8<2

    i got g< -6

    but im not really sure

    plzzz

    helpp

    3 AnswersHomework Help1 decade ago
  • Inside the Atom- Please Help.!?

    A radioactive isotope has a half-life of two years. at the end of four years, how much of the original isotope remains?

    3 AnswersChemistry1 decade ago
  • Inside the Atom - Please help!?

    If you have 16 g of a substance that has a half-life of 3 days, after 12 days you will have how many g of the substance remaining?

    1 AnswerChemistry1 decade ago
  • Are Energy Drinks Bad For You???

    are energy drinks really bad for you?

    i LOVE red bull

    but ive heard frum peepo that its bad

    and like on the news they sed that they put alchohol in them?

    plz help!

    11 AnswersNon-Alcoholic Drinks1 decade ago
  • OMG-Drama!?

    okay so - im goin to join the drama club-

    and im really nervous

    do you have n e advice for me

    or acting skills i should know about?

    plz- im so nervous

    thanks so much

    3 AnswersTheater & Acting1 decade ago
  • I need help??!?

    okay- school is about to begin and well... i want to luk kinda different- i wear makeup - but im kind of tired of using the same thing- and i want ma hair to luk different- i have alot- so its thick- how should i cut my hair and how should i do my makeup?

    here is a picture of me

    http://i25.photobucket.com/albums/c68/Lil_freshazn...

    7 AnswersOther - Beauty & Style1 decade ago