\(\frac{x}{1000^1}=1\)
\(\Rightarrow x=1.1000\)
\(\Rightarrow x=1000\)
theo cau tren thi chon D \(\varnothing\)
\(\frac{x}{1000^1}=1\)
\(\Rightarrow x=1.1000\)
\(\Rightarrow x=1000\)
theo cau tren thi chon D \(\varnothing\)
1 cuoc thi co 30 cau hoi.moi cau tra loi dung duoc 10 diem,moi cau tra loi sai tru 3diem.1 ban hoc sinh duoc 131 diem .hoi ban tra loi may cau dung ,may cau sai?
Giup minh nka:
1) So sanh:
A=10^2013+2/10^2013-1 va B=10^2013/10^2013-3
2) Tim x
a) 3^x-15.3^8=14.3^8
b)1/3+1/6+1/10+...+2/x(x+1)=49/50
Thank you, minh se chon cau tra li dau tien
Tim so tu nhien a biet: 1/a + 1/a = 1/3 ( a< 10)
AI TRA LOI CAU HOI NAY THI NHO GUI LOI MOI KB NHAAA!!!!!!!!!
trong 1 cuoc thi co 50 cau hoi.hs tra loi dung 1 cau dc 3 diem , sai 1 cau tru 2 diem ,Minh tra loi dung 18 cau hoi.hoi Minh dc bao nhieu diem
goi M la 1 diem bat y cua doan thaang AB , diem M nam o dau hay chon cau tra loi dung
a) diem M phai trung voi diem A
b) diem M phai trung voi 2 diem A va B
c) diem M phai trung voi diem B
d) diem M hoac trung voi diem A hoac nam giua 2 diem A va B hoac trung voi diem B
ban na lam mot bai thi gom 20 cau trac nghiem.Moi cau tra loi dung duoc 5 diem,sai tru 2 diem,bo qua thi 0 diem.Cham 7 cau trong bai thi co cau Na tra loi sai.Tinh so cau tra loi dung,so cau sai,so cau bo qua,neu Na duoc:
a)60 diem
b)55 diem
GIUP MINH VOI!HELP ME!!
Chon cau tra loi dung: Phan so nho nhat trong cac phan so sau day la phan so nao?
\(\frac{5}{-3};\frac{7}{-3};\frac{8}{-3};\frac{10}{-3}\)
hoc sinh lop 6Dkhi xep hang 2, hang 3 , hang 4 ,hang 6 ,hang 8 deu vua du biet so hoc sinh lop do trong khoang tu 40 den 60 so hoc sinh lop 6D la
A . 48
b. 54
c, 60
d. 72
chon cau tra loi dung giup minh voi
trong 1 ngay hoi thi mot truong co 12 ban hoc sinh duoc khen vi da tra loi cac cau hoi dung
trong do co 7 hoc sinh tra loi it nhat 2 cau ,4 hoc sinh tra loi it nhat 3 cau 2 hoc sinh tra loi
duoc 4 cau hoi .hoi hoc sinh cua truong da tra loi duoc bao nhieu cau hoi (biet rang hoc sinh
tra loi nhieu nhat la 4 cau hoi)
GIAI GIUP MINH VOI MAY BAN ^^