nam nay hop tac xa dong tien thu hoach dc nhieu hon nam ngoai 1tan/ha.hoi tren thua ruong hcn co cr 70m ,cd120m thi thu hoach dc nhieu hon nam ngoai bao nhieu ki-lo-gam thoc
lop 7a co so hs gioi = 3/8 so hs kha. den cuoi nam co 7 hs vuon len hs gioi va 1 hs tut xuong hs kha nen so hs gioi = 9/13 so hs kha. hoi lop 7a co bn hs
lop 7a co so hs gioi = 3/8 so hs kha. den cuoi nam co 7 hs vuon len hs gioi va 1 hs tut xuong hs kha nen so hs gioi = 9/13 so hs kha. hoi lop 7a co bn hs
Mot thua ruong hingthang vuong co canh ben vuong goc voi 2 day dai 30,5 m ; day lon 120,4 m ; day be 79,6 m .
A , Tinh dien tich thua ruong bang dam2 ?
B / Trung binh 100 dam2 thu dc 65,2 kg thoc . Hoi tren ca thu ruong thu dc bao nhieu kg rau ?
Tren duong thang d lay 2016 diem phan biet tinh so doan thang tren hinh ve duoc tao nen tu 2016 cac diem do
tim so tu nhien de phan so 8n+193 tren 4n +3 co gia tri tu nhien
vi 8n+193 va 4n +3 to ko viet dc thanh phan so nen to viet nhu the nhe
hai may cay cung lam viec trong 16 gio thi cay xong thua ruong.neu 2 may cay cung lam viec trong 12 gio tren thua ruong ay thi phan ruong con laii, may 2 phai lam viec trong 6 gio moi xong. neu lam mot minh thi moi may mat bao lau de xong cong viec
MN giup cho em bai nay voi a
de bai nhu sau:
1+2+4+6+...+2n(do mik nhac ghi so mu nen ghi the cho nhanh)
tim x de:H+1=2100
cau1: dung 5 so 3 voi + - x : va luy thua de bieu dien so 13
cau2: tren 1m2 nen nha phai nat het bao nhieu vien gach bong kich thuoc 25x25cmcan bao nhieu vien gach nhu vay de nat 1 nen hinh vuong canh la 2m