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john_lu66

Favorite Answers71%
Answers426

Sophomore of WSU-Pullman, pursuing computational mathematics degree.

  • Tax filing question.?

    Hi,

    Last year I filed tax return as a green card holder and this year, I will be filing tax as a US citizen, what things will be changed and what should I be careful for?

    4 AnswersUnited States7 years ago
  • travel to Puerto Rico?

    Planning to visit Puperto Rico in September but need advise in terms of the proper documents.

    Do you just bring your driver's license and that's it?

    My passport is expired so that is why I was thinking should I renew before I leave the US or not.

    Also, do they accept US dollars and can I use credit cards there, too?

    Thanks a bunch,

    3 AnswersPuerto Rico7 years ago
  • What to do if my yahoo email is hacked?

    This is interesting to explain,

    A spam company (online med) has been using my email to send it to myself...or appear that way (the sender is myself), and i have already make them as the junk mails so they dont show up as the regular emails but they will show up in my junk mail folder

    I tried to change my password but it doesnt help. they work 8-5 plus the weekends, at night they dont send but in the day time, they send emails to me (5-8 per day)..i m not sure if they also send it to other users but when i checked the outbound emails, nothing related to the spam company was there~ interesting huh?

    i suspect if the spam company just use the name but the actual account. Well, my friends didnt complain about receiving emails from them so...interesting...

    This has been going on for the past 2 years...i never thought about writing a question but i thought maybe some of you know how to fix it.

    Also i never really opened those emails, i just delete them directly while they are in my junk mail folder.

    Any solution?

    1 AnswerAbuse and Spam7 years ago
  • How to file tax (2 states)?

    I am trying to file tax but wasnt sure how to file and dont know which forms to use.

    I worked in MA during summer time and then when I moved to FL last Fall, I found another job, now I got 2 W-2 Forms, but how can I file the tax? I am still working in FL.

    I just know there is no State Tax in FL but there is one in MA.

    I became a Resident in MA back in 2012 and I just became a resident of FL in Dec 2013.

    So any help?

    4 AnswersUnited States7 years ago
  • Contacted by HR but no reply?

    Hi, I was contacted by HR in corporation like Geico and BlueCrossBlueSheild about careers in the actuarial department (my major) and they say I was among the selected that there will be openings in the area. Then they requested to see my resume, cover letter and etc....but after i sent them those documents, no replied. Here are my questions,

    1) I submitted my online application and sent them my information (resume cover, etc...) when I first applied, why are they asking again?

    2) Should I write him/her again to reiterate my interest or if no replies simply means I didnt survive the cut? And should I just move on? Cause they are great companies that I really want to work at.

    Any tips would be helpful

    2 AnswersOther - Careers & Employment8 years ago
  • Prob question related to binomial?

    If dan tossed a fair coin 28 times and Mary tossed another fair coin 28 times as well, how can i.find the prob that they got the same heads? Plz show work

    1 AnswerMathematics9 years ago
  • Expected value of poisson distribution?

    Expected value of poisson distribution?

    I need to calculate the follow,

    E(x(x-1)(x-2)) but I am not sure how to find it.

    Plz show all calculations to get full points.

    1 AnswerMathematics9 years ago
  • microsoft excel 2010 words auto adjusting issue?

    Hi,

    I am using Microsoft Excel 2010 and trying to type CNA in any cell, but it keeps changing to CAN,...is there a way to fix that?

    Also it does not work for either capitalized words or non-capitalized words.

    Thank you.

    2 AnswersSoftware9 years ago
  • open orders in stocks on scottrade?

    Hi, I have open orders on my stocks and they will expire on 4/30/12.

    What happens if I dont sell my stocks by then? Do I create new orders to sell them or will they will just expire and I wont get a dime?

    I am new to buying stocks.

    Any tip and information will be helpful

    2 AnswersInvesting9 years ago
  • bond related question?

    A 30 year bond with face amount 10000 is bought to yield i(2) = 0.08.

    I need to find purchase price of the bond and the bond's coupon rate.

    1) The first entry in the amortization schedule for accumulation of discount is 80.

    2) The first entry in the amortization schedule for amortization of premium is 80.

    I am just stuck and not sure how to calculate.

    sol 1) can not occur 2) 29039.25 and 0.2483

    2 AnswersOther - Business & Finance10 years ago
  • expression for k, fm related question?

    Here is the question, a loan of $10000 is to be repaid with annual payments at the end of each year for the next 20 years. First 5 years the payments are k per year, and second 5 years the payments are 2k per year and the third 5 years the payments are 3k per year and the last 5 years the payments are 4k per year. I need to find an expression for k.

    Here I said:

    k a angle 5 + 2k a angle 5*v^5 + 3k a angle 5* v^10 + 4k a angle 5* v^15 = 10000,

    but the solution from the back of the book gives 10000 = 4k*a angle 20 - 3k*a angle 15 - 2k*a angle 10 - k*a angle 5,

    my question is if my solution is wrong or not?

    Thanks

    1 AnswerHomework Help10 years ago
  • hi, i need help with the present value problem?

    find the present value of payments of 200 dollars every 6 months starting immediately and continuing through 4 years from the present, and 100 dollars every 6 months thereafter through 10 years from the present, if i(2) = 0.06

    plz show all work!

    1 AnswerHomework Help10 years ago
  • finding radius and interval of convergence?

    for a power series from k = 0 to infinity

    (k/(3^(2k-1))* (x-1)^2k,

    I found the radius R = 3 and the interval of covergence to be -2 < x < 4 but when I test the end points is where i m stuck...

    i tested x = -2 in the series and tried to use the ratio test, it gave me 1, which is inclusive

    i tested x = 4 in the series and tried to use the ratio test, it gave me 1 as well.

    So I thought about the divergence test, but i am not sure if it will give me 0 or not,

    So please let me know if the end points are included in the interveal of convergence or not...

    if the end point is convergent, is it absolutely convergent or conditionally convergent.

    Thanks,

    3 AnswersMathematics1 decade ago
  • easy calculus integral?

    Hi, I need to find the following integral using integration by parts. please show all work to receive full points, thank you!

    integral of arctanx/(1+x^2)^1.5

    I tried to let u = arctanx and i get

    integral of u/ sec(u)^3 du but I dont know how to proceed,

    thanks

    2 AnswersMathematics1 decade ago