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Lv 789,889 points

阮 金 淸 Nguyễn Kim Thanh

Favorite Answers35%
Answers14,820

tuổi cao, tóc bạc, tu cho duoc thảnh thoi. toán chăm, ngũ học, dạy cho vui con cháu

  • tet du nhieu` thuc an, bao? quan? dduoc khong?

    banh' chung, xoi gio` thit. dde? ngan dda'?

    con thu gi` dde? dduoc o? ngan dda'?

    3 AnswersẨm thực truyền thống7 years ago
  • A(n cay co' tac' hai.?

    A(N cay co' fai? lla` nguye^n nha^n ga^y ra loet' bao tu*? ?

    neu^' ddung' thi` nguoi` Han` dde^`u loet' bao tu*? he^t' vi` ho an( rat^' cay, va` ho an( cay ha`ng ngay`.

    Nguoi` Hue^' o*? VN cha('c cung~ bi loet' bao tu*? het^" vi` dda so^' dde^`u an( ra^'t cay.

    Loet' bao tu*? thi` ko^ dduoc an( cay, ai cung~ co^ng nha^. nhu* the^'. A(n cay co' gay^ ra loet' bao tu*? ?

    1 AnswerẨm thực - Khác8 years ago
  • DDuong nho la tofoufah?

    Neu ban muon biet them ve nguon goc cua dduong nho, vao google ddanh buy Glucono delta-lacton

    no se ddua mot loat cho ban chat duong nho nay

    ban se thay tat ca? gan nhu 99% deu ban ra tu trung quoc voi so luong rat lon.

    Ban co biet duong nho ban mua thuc su dden tu` ddau?

    1 AnswerẨm thực - Khác9 years ago
  • so xyz - zyx= so chia chan cho 7, co bao nhieu so, biet rang x,y, z>0?

    so xyz - zyx= so chia chan cho 7, co bao nhieu so, biet rang x,y, z>0

    toi can giang cho chau'

    thanks

    2 AnswersToán học9 years ago
  • Sound exits a diffraction horn loudspeaker through a rectangular opening, like a small doorway. A person is si?

    Sound exits a diffraction horn loudspeaker through a rectangular opening, like a small doorway. A person is sitting at an angle theta off to the side of a diffraction horn that has a width D of 0.06 m. The speed of sound is 343 m/s. This individual does not hear a sound wave that has a frequency of 8100 Hz. When she is sitting at an angle theta/2, there is a different frequency that she does not hear. What is it?

    I'm trying to find the answer for this one,

    lamda 1= V sound/ f

    from lamda, find sin θ, then find θ/2

    use the new angle find lamda 2

    then f2,

    the right answer is f2=1.5 x10^4 Hz

    Please help

    2 AnswersPhysics9 years ago
  • I need help, for my child. A jumper leaves the ground at an angle 32º?

    the distance he covers is 7.8 meters. Find the takeoff velocity?

    Can you give me a hand here? which formulas should I use?

    all given are an angle and the displacement.

    2 AnswersPhysics10 years ago
  • I need help, for my child. A jumper leaves the ground at an angle 32º?

    the distance he covers is 7.8 meters. Find the takeoff velocity?

    Can you give me a hand here? which formulas should I use?

    all given are an angle and the displacement.

    2 AnswersEngineering10 years ago
  • Mot nguoi nhay xa, nhay mot goc voi mat đat?

    la 23 º, đoạn đuòng nhảy đuọc la 8,7 met. tìm vận tốc luc đầu. giup dùm bai cho dua cháu ma toi can giảng cho nó hiểu? cam on ai có lòng.

    1 AnswerToán học10 years ago
  • S1= 1^2 + 5^2 + 9^2 +...+ 2013^2?

    co ba bai suy tu bao nhieu lan chua tim duoc cach giai

    viet cong thuc và tìm tổng

    S1= 1^2 + 5^2 + 9^2 +...+ 2013^2

    S2= 1 + 2 + 2^2 +..+ 2^2011

    S3= 1 + 2*2 + 3*2^2 + 4*2^3 + 5*2^4 +...+ 2012*2^2011

    2 AnswersToán học10 years ago
  • A triangle ABC. given B(-4,-5). the altitudes d1,?

    d1: 5x+3y-4=0, and d2: 5x+8y+13=0. Find the equations for the sides of the triangle, and locate A and C. thanks in advance. Please help if you can. thanks.

    1 AnswerMathematics10 years ago
  • f(x)= x^4-4mx²+2, find m, so that f(x) has three max/min points which form?

    a triangle whose barycenter is at the origin?

    so y'= 4x³-8mx =0,

    x=0, or x=± √(2m)

    let A(0,2, B(√(2m), f(√(2m)) and C( -√(2m), f(-√(2m))

    How do I locate the barycenter which satisfies the question? thanks for helping.

    4 AnswersMathematics10 years ago
  • help my orchids, they are infested with liltle tiny white something?

    The white spots usually sit and suck at the main vein, and on the leave if I don't wipe them out. They will leave permanent empty spots where the chlorophyls were. thanks for reading.

    2 AnswersOther - Home & Garden10 years ago
  • f(x)= mx³-3mx²+(2m+1)x+3-m, find m so that f(x) has max and min , and that they are colinear with the origin.?

    I found

    y'=3mx² -6mx+2m+1

    for f(x) to have both max and min, f'(x) should have two solutions, so ▲>0

    ▲>0,

    m(12m+12)>0

    so either both m and (12m+12) are positive or negative.

    positive

    m>0, and 12m+12>0,==> m>1

    negative

    m<0, 12m+12<0, ==>m< -1

    so from that I conclude either m>0 or m<-1

    how do I line them up with the origin, make them Max/Min colinear with the origin.

    thanks for your input.

    1 AnswerMathematics10 years ago
  • co phai google dang tàn dần?

    co ai bị the ko, rat nhieu links cua google , ve toan và khoa hoc, bi redirect đi sang thuong mãi, búc xúc, búc xúc quá.

    co cach nao khong bị. nhung tay thuong mai giut link?

    2 AnswersToán học10 years ago
  • Ai biết kí kiệu tóan học trên yahoo?

    thì them vao bảng này

    một số kí hiệu toán học trong yahoo

    Alt+242= ≥

    Alt+243=≤

    Alt+241=±

    Alt+227=π

    Alt+251=√

    Alt+30=▲

    Alt+253=²

    Alt+236=∞

    Alt+224=α

    Alt+225=ß

    Alt+167=º

    Alt+230=µ

    thanks

    3 AnswersToán học10 years ago
  • Ai muon lam Parmesan cheese?

    lam thu duoc thì lam ban

    thủ cong đáy

    lam phô mai [fromage]

    bao tủ bò con, đem rua sach, cat mieng, ngam vào nuoc muói, cong voi chut dấm de lam giam nong độ pH

    ngam suot dem cho toi vai ngày, dem ra dung vai loc.chat nuoc nay duoc dung de lam đac sũa de lam fromage. 1 gram cua nuoc nay dung cho 2 toi 4 lit sua.

    sũa dun soi de nguoi, cho mot hop sua chua [phai thủ truoc de biet sua chua còn tot], ủ mot giò.

    cho nuoc dịch vị bao tủ bò vào

    tron deu

    ủ mot gio 30 fut'

    luc nay sua đong lai tung khoi

    de yen trong 10 fut

    tang nhiet de cua fromage len 120 do F, co the ngam trong nuoc nong.120 deo F la nong bang nuoc nguoi Nhat dùng de tam. đu de ban thay nong, nhung da khong bị bong, chỉ ủng đỏ len, khi ra ngaoi da lai het đỏ]

    quay nhung khoi fromage nay cho không dinh vao nhau.

    tiep tuc giu cheese o nhiet do nay trong 1/2 giò. luc nay no da bat dau chac lai. tung cục.

    dung vai loc nuoc ra khoi cheese, nuoc này dùng lam banh.

    boc no trong vai, cho vào khuon, ep nang 10 pounds anh. [coi may cuc tạ. tay thì biet no nang bao nhieu]

    ep 1/2 giò

    lay no ra khoi khuon, lat no up lai, ep 25 pounds 1/2 giò

    lat no lan nũa, roi ep tiep 12 giò

    chuan bi nuoc muoi đe ngam nó

    đay la dung luong theo anh, ban can doi ra theo phap, hay cu the mà theo

    1 cup[loai 8 fluid ounces] ruoi muoi, pha trong mot quart nuoc.

    thả ngam no trong nuóc muoi cho ngập 30 giò

    đem ra dung khan sach lau khô ráo

    cho vào tủ lanh, giu trong 5 tháng, dung vay làm Parmesan lau la.

    trong vài tuan dau thì lat no mat tren xuong duoi, cach mot ngay lật một lạn.

    sau đò giam xuong, lat mot tuan mot lan

    sau khi cho no vào tủ lanh duoc hai ngay, thi up no bang mot cai to thuy tinh. xem chung co reu mọc, neu co thi khoet bỏ chõ đó đi.

    sau nam thang thi bat dau cat mieng , mai vụn roi dùng, cang de lau cang tang huong vị.

    2 AnswersBí quyết nấu ăn10 years ago
  • Find the unit vectors that are parallel to the tangent line?

    to the curve y=2 sinx, at the point (π/6,1)

    y'=2cosx

    and then?

    please help me to work this out. thanks

    1 AnswerMathematics10 years ago
  • find the unit vector that are parallel to?

    the tangent line to the parabola y=x² at the point (2,4)

    f'(x)=2x

    f'(0)=2*2=4

    y-4=2(x-4)

    and then ????

    please help out.. thanks

    2 AnswersMathematics10 years ago