tim x biet;
[1/3x5+1/5x7+1/7x9+...1/9x11]nhan x =8/11. giup minh nhe cac ban dep trai dep gai nhe.
Cac ban la nhung nguoi luon giup moi nguoi.Giai giup minh bai nay voi nhe.
Cong thuc tinh chieu cao trung binh cua tre em Viet Nam duoc xac dinh nhu sau :
Chieu cao trung binh cua tre=0,75m+0,05m*[so tuoi theo nam duong lich cua tre - 1].
a,Em hay tinh chieu cao trung binh cua tre em 6 tuoi.
b,Em hay tinh chieu cao trung binh cua tre em 11 tuoi.Em da dat duoc chieu cao trung binh nay chua?[cau nay co dap an cac ban lam, minh tu giai,de cau cuoi cung.]
Cam on cac ban nhieu lam day!
Thu Hang 5A,Nguyen Trai.
1. hieu cua hai so thap phan; /abc,d va /a,bcd la 583,704. hay tinh tong hai so do. giup minh nhe cac ban dep trai dep gai nhat nha.
Khi cong 2 so thap phan mot ban hoc sinh da viet nham dau phay cua so hang thu hai sang ben phai mot chua so, do do tong tim duoc la 42,21. Tim hai so hang ban dau biet tong cua chung la 12,34 ?
Ban SKT_NTT oi giup mik voi mik cam on ban truoc
tim mot phan so bang 7/13 sao cho mau so cua no lon hon tu so 114 don vi . cac ban ve so do giup minh nhe cam on
a , hay viet 55 thanh tong cua cac so tu nhien lien tiep
b,1 day pho co 15 nha duoc danh la day le lien tiep.tong cua 15 so nha la 915 .Tim so nha dau tien va so nha cuoi cung
c, cho day so co 11 so hang co tong = 176. biet hieu cua so dau va so cuoi la 30 . hay viet day so do
d,1 day so tu nhien cach deu co tan cung la 2 . Cac so deu chia het cho 4 . Tim so thu 112 cua day roi tinh tong biet so dau tien la so nho nhat co 3 chu so
giai ho minh nhe,thank you.
cac ban oi giup minh bai nay voi
0,1 ; 0,01 ; 0,001 ; 0,001 tim quy luat roi viet them 3 so hang , tim so hang thu 100 cua day
Em hay neu cam nghi ve mai truong, thay co, cha me va ban be.
Cac ban oi giup dum minh nhe! Cac ban dung viet giong qua trong bai van kham khao nhe ! Ban nao lam giup minh thi minh se tick cho Cam on cac ban nhiu lam!( khi chia tay lop 5)
1.viet so tu nhien nho nhat co tong cac chu so bang 38?
2.mot phep chia hai so tu nhien co thuong la 6 va so du la 33.tim so bi chia,so chia,biet rang tong cua so bi chia,so chia,thuong va so du bang 695.
3.trung binh cong cua 3 so le lien tiep bang 299.tim so lon nhat trong 3 so do?
4.cho phan so a/b.rut gon so phan so a/b ta duoc phan so 5/7.neu them 71 don vi vao tu so va giu nguyen mau so,ta duoc phan so co gia tri bang 18/11.tim phan so a/b?
5.tim y biet:a=(2/11*13+2/13*5+2/15*17+2/17*19+2/19*21)*462-y=19
cac ban giai chi tiet gium minh nhe,ban nao giai duoc minh cho ***** lun