3,(45) = 38/11
\(\frac{x}{3,\left(45\right)}=99\Leftrightarrow\frac{x}{\frac{38}{11}}=99\Rightarrow x=\frac{38}{11}.99=38.9=342\)
cho minh hoi
x/3.(45)=99 co nghia la the nao ?
{a} ;[a] la cac ki hieu gi va muon tinh thi phai tinh nhu the nao? cho xin vi du nha mn oi........
nhanh nhanh mk tick cho
cho4 so ko am a,b;c;d thoa man a+b+c+d=1 . Goi S la tong cac tri tuyet doi cua hieu tung cap so co duoc tu 4 so nay. S co the dat gia tri lon nhat la bao nhieu ?
xin loi cac ban vi cau hoi cua minh ko co dau nen hoi kho hieu mong cac ban giup do nha thankyou
Giup minh voi:
De bai la : Write about your hobby .
So thich cua minh la nau an thi viet nhu the nao
(4-5x)^3 = -1/125. ^3 day la ko hieu cua mu 3. Gi up Minh voi. De bai la Tim x
3 z 0 3 nghia la the nao ha chung may
Cho minh hoi bai nay. Chi can tra loi 1 cau cung duoc! Tick cho ai tra loi som nhat, day du nhat.
1. Cho so huu ti y=2a-1/-3. Voi gia tri nao cua a thi y la so duong, y la so am, khong phai so duong cung phai so am?
2. Cho so huu ti x=a-5/a (a khac 0). Voi gia tri nao cua a thi x la so nguyen?
3. Cho so huu ti x=a-3/2a (a khac 0). Voi gia tri nao cua a thi x la so nguyen?
so trung binh cong se thay doi nhu the nao khi cac gia tri cua dau hieu tang 10%?
I.Dai so:
Cau1. Gia tri tuyet doi cua so huu ti x duoc xac dinh nhu the nao?
Cau2. Viet cac cong thuc:nhan, chia hai luy thua cung co so. luy thua cua: luy thua, mot tich, mot thuong.
cau3. Ti le thuc la gi? Tinh chat co ban cua ti le thuc. Viet cong thuc tinh chat cua day ti so bang nhau.
cau4. Dinh nghia can bac hai cua mot so am? cho vi du?
Cau 5 Khi nao thi hai dai luong y va x ti le thuan voi nhau? Tinh chat cua hai dai luong ti le thuan ?
Cau 6:Khi nao thi hai dai luong y va x ti le nghich voi nhau? Tinh chat cua hai dai luong ti le nghich?
Cau 7:Do thi cua ham so y= ax ( a khac 0) co dang nhu the nao?