cac ban cho minh hoi bai nay khan cap nhe : trong mot ki thi giao luu neu tra loi dung mot cau hoi thi duoc 10 diem . neu tra loi sai 1 cau thi bi tru 5 diem . mot thi sinh da tra loi 20 cau hoi va duoc 80 diem. tinh so cau tra loi dung , tra loi sai cua thi sinh do. ban nao biet tra loi luon minh nhe , khan cap.khan cap!

what your name?...........................................................

  how old are your?.....................................................

which class are you in?...........................................................

what color do you like?...................................

what favourite subject do you like?...............................................

nho tra loi som nha , ket ban voi minh nhe

Bn nao thay anh dai dien cua mk rat cute thi kb vs nha ! Sau do thi tra loi tren Giup toi giai toan luon nha ! Thank you very much !!!!!!

Hoac nhung bn nao hoc lop 3 hoac lop 4 nhe !

X-2=-7-13

moi nguoi giup minh nhe va ket ban voi minh luon ai ma tra loi nhanh nhat minh se bam tick

cho hinh tam giac co dien tich 3/8m vuong va chieu cao 2/3m.tinh do dai day cua hinh tam giac do.

phien cac bn ghi ro cau tra loi giup mik nhe!

Mot hinh chu nhat co chieu rong 2 dm va 1 nua hinh tron o ben trong ban kinh la 2 . Tinh dien tich phan con lai cua hinh chu nhat do ? Ai tra loi nhanh nhat trong hom nay minh TICK chi nhe♡♡♡♡♡☆☆☆☆☆~~~~~~~ AI tra loi nhanh trong it fut thi se dc tick

CHO GOC BET aOb  TREN CUNG 1 NUA MAT PHANG BO AB. VE CAC TIA OC VA OD SAO CHO  GOC AOC=60 DO;  GOC BOD = 1/2 GOC AOC. CHUNG TO RANG 2 TIA OC VA OD  VUONG GOC VOI NHAU.'

AI  TRA LOI NHANH  NHAT MINH TICK CHO 3 CAI VA KET BAN NHE. THE LUON.

mot hinh thang co dien tich la 486 m2 . neu canh day be tang them 6m thi dien tich tang them 27 m .hieu cua hai canh day la 12m. tinh so do moi canh

tra loi gium minh, nho tra loi co loi giai ,phep tinh ,dung viet tat nhe

Mot hinh chu nhat co dien tich la  3822cm2. Neu giam chieu dai Di 2 lan va gap chieu rong len 3 lan duoc mot hinh chu nhat moi. Vay hinh chu nhat moi co dien tich la

Giup Minh di minh can gap lam

Giai thich ghi loi giai luon nhe 

Dung sai gi minh cung tick nhe